svn_wc.h

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/**
 * @copyright
 * ====================================================================
 *    Licensed to the Apache Software Foundation (ASF) under one
 *    or more contributor license agreements.  See the NOTICE file
 *    distributed with this work for additional information
 *    regarding copyright ownership.  The ASF licenses this file
 *    to you under the Apache License, Version 2.0 (the
 *    "License"); you may not use this file except in compliance
 *    with the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing,
 *    software distributed under the License is distributed on an
 *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 *    KIND, either express or implied.  See the License for the
 *    specific language governing permissions and limitations
 *    under the License.
 * ====================================================================
 * @endcopyright
 *
 * @file svn_wc.h
 * @brief Subversion's working copy library
 *
 * Requires:
 *            - A working copy
 *
 * Provides:
 *            - Ability to manipulate working copy's versioned data.
 *            - Ability to manipulate working copy's administrative files.
 *
 * Used By:
 *            - Clients.
 *
 * Notes:
 *            The 'path' parameters to most of the older functions can be
 *            absolute or relative (relative to current working
 *            directory).  If there are any cases where they are
 *            relative to the path associated with the
 *            'svn_wc_adm_access_t *adm_access' baton passed along with the
 *            path, those cases should be explicitly documented, and if they
 *            are not, please fix it. All new functions introduced since
 *            Subversion 1.7 require absolute paths, unless explicitly
 *            documented otherwise.
 *
 *            Starting with Subversion 1.7, several arguments are re-ordered
 *            to be more consistent through the api. The common ordering used
 *            is:
 *
 *            Firsts:
 *              - Output arguments
 *            Then:
 *              - Working copy context
 *              - Local abspath
 *            Followed by:
 *              - Function specific arguments
 *              - Specific callbacks with their batons
 *            Finally:
 *              - Generic callbacks (with baton) from directly functional to
 *                just observing:
 *                  - svn_wc_conflict_resolver_func2_t
 *                  - svn_wc_external_update_t
 *                  - svn_cancel_func_t
 *                  - svn_wc_notify_func2_t
 *              - Result pool
 *              - Scratch pool.
 */

#ifndef SVN_WC_H
#define SVN_WC_H

#include <apr.h>
#include <apr_pools.h>
#include <apr_tables.h>
#include <apr_hash.h>
#include <apr_time.h>
#include <apr_file_io.h>

#include "svn_types.h"
#include "svn_string.h"
#include "svn_checksum.h"
#include "svn_io.h"
#include "svn_delta.h"     /* for svn_stream_t */
#include "svn_opt.h"
#include "svn_ra.h"        /* for svn_ra_reporter_t type */
#include "svn_version.h"

#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */


/**
 * Get libsvn_wc version information.
 *
 * @since New in 1.1.
 */
const svn_version_t *
svn_wc_version(void);

/**
 * @defgroup svn_wc  Working copy management
 * @{
 */

/** Flags for use with svn_wc_translated_file2
 *
 * @defgroup translate_flags Translation flags
 *
 * @{
 */

  /** Translate from Normal Form.
   *
   * The working copy text bases and repository files are stored
   * in normal form.  Some files' contents - or ever representation -
   * differs between the working copy and the normal form.  This flag
   * specifies to take the latter form as input and transform it
   * to the former.
   *
   * Either this flag or #SVN_WC_TRANSLATE_TO_NF should be specified,
   * but not both.
   */
#define SVN_WC_TRANSLATE_FROM_NF                 0x00000000

  /** Translate to Normal Form.
   *
   * Either this flag or #SVN_WC_TRANSLATE_FROM_NF should be specified,
   * but not both.
   */
#define SVN_WC_TRANSLATE_TO_NF                   0x00000001

  /** Force repair of eol styles, making sure the output file consistently
   * contains the one eol style as specified by the svn:eol-style
   * property and the required translation direction.
   *
   */
#define SVN_WC_TRANSLATE_FORCE_EOL_REPAIR        0x00000002

  /** Don't register a pool cleanup to delete the output file */
#define SVN_WC_TRANSLATE_NO_OUTPUT_CLEANUP       0x00000004

  /** Guarantee a new file is created on successful return.
   * The default shortcuts translation by returning the path
   * of the untranslated file when no translation is required.
   */
#define SVN_WC_TRANSLATE_FORCE_COPY              0x00000008

  /** Use a non-wc-local tmp directory for creating output files,
   * instead of in the working copy admin tmp area which is the default.
   *
   * @since New in 1.4.
   */
#define SVN_WC_TRANSLATE_USE_GLOBAL_TMP          0x00000010

/** @} */

/**
 * @defgroup svn_wc_context  Working copy context
 * @{
 */

/** The context for all working copy interactions.
 *
 * This is the client-facing datastructure API consumers are required
 * to create and use when interacting with a working copy.  Multiple
 * contexts can be created for the same working copy simultaneously, within
 * the same process or different processes.  Context mutexing will be handled
 * internally by the working copy library.
 *
 * @note: #svn_wc_context_t should be passed by non-const pointer in all
 * APIs, even for read-only operations, as it contains mutable data (caching,
 * etc.).
 */
typedef struct svn_wc_context_t svn_wc_context_t;

/** Create a context for the working copy, and return it in @a *wc_ctx.  This
 * context is not associated with a particular working copy, but as operations
 * are performed, will load the appropriate working copy information.
 *
 * @a config should hold the various configuration options that may apply to
 * this context.  It should live at least as long as @a result_pool.  It may
 * be @c NULL.
 *
 * The context will be allocated in @a result_pool, and will use @a
 * result_pool for any internal allocations requiring the same longevity as
 * the context.  The context will be automatically destroyed, and its
 * resources released, when @a result_pool is cleared, or it may be manually
 * destroyed by invoking svn_wc_context_destroy().
 *
 * Use @a scratch_pool for temporary allocations.  It may be cleared
 * immediately upon returning from this function.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_context_create(svn_wc_context_t **wc_ctx,
                      svn_config_t *config,
                      apr_pool_t *result_pool,
                      apr_pool_t *scratch_pool);


/** Destroy the working copy context described by @a wc_ctx, releasing any
 * acquired resources.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_context_destroy(svn_wc_context_t *wc_ctx);


/** @} */


/* Locking/Opening/Closing */

/** Baton for access to a working copy administrative area.
 *
 * One day all such access will require a baton, we're not there yet.
 *
 * Access batons can be grouped into sets, by passing an existing open
 * baton when opening a new baton.  Given one baton in a set, other batons
 * may be retrieved.  This allows an entire hierarchy to be locked, and
 * then the set of batons can be passed around by passing a single baton.
 */
typedef struct svn_wc_adm_access_t svn_wc_adm_access_t;


/**
 * Return, in @a *adm_access, a pointer to a new access baton for the working
 * copy administrative area associated with the directory @a path.  If
 * @a write_lock is TRUE the baton will include a write lock, otherwise the
 * baton can only be used for read access.  If @a path refers to a directory
 * that is already write locked then the error #SVN_ERR_WC_LOCKED will be
 * returned.  The error #SVN_ERR_WC_NOT_DIRECTORY will be returned if
 * @a path is not a versioned directory.
 *
 * If @a associated is an open access baton then @a adm_access will be added
 * to the set containing @a associated.  @a associated can be @c NULL, in
 * which case @a adm_access is the start of a new set.
 *
 * @a levels_to_lock specifies how far to lock.  Zero means just the specified
 * directory.  Any negative value means to lock the entire working copy
 * directory hierarchy under @a path.  A positive value indicates the number of
 * levels of directories to lock -- 1 means just immediate subdirectories, 2
 * means immediate subdirectories and their subdirectories, etc.  All the
 * access batons will become part of the set containing @a adm_access.  This
 * is an all-or-nothing option, if it is not possible to lock all the
 * requested directories then an error will be returned and @a adm_access will
 * be invalid, with the exception that subdirectories of @a path that are
 * missing from the physical filesystem will not be locked and will not cause
 * an error.  The error #SVN_ERR_WC_LOCKED will be returned if a
 * subdirectory of @a path is already write locked.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton to determine
 * if the client has cancelled the operation.
 *
 * @a pool will be used to allocate memory for the baton and any subsequently
 * cached items.  If @a adm_access has not been closed when the pool is
 * cleared, it will be closed automatically at that point, and removed from
 * its set.  A baton closed in this way will not remove physical locks from
 * the working copy if cleanup is required.
 *
 * The first baton in a set, with @a associated passed as @c NULL, must have
 * the longest lifetime of all the batons in the set.  This implies it must be
 * the root of the hierarchy.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 *    Callers should use a #svn_wc_context_t object to access the working
 *    copy.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_open3(svn_wc_adm_access_t **adm_access,
                 svn_wc_adm_access_t *associated,
                 const char *path,
                 svn_boolean_t write_lock,
                 int levels_to_lock,
                 svn_cancel_func_t cancel_func,
                 void *cancel_baton,
                 apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_open3(), but without cancellation support.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_open2(svn_wc_adm_access_t **adm_access,
                 svn_wc_adm_access_t *associated,
                 const char *path,
                 svn_boolean_t write_lock,
                 int levels_to_lock,
                 apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_open2(), but with @a tree_lock instead of
 * @a levels_to_lock.  @a levels_to_lock is set to -1 if @a tree_lock
 * is @c TRUE, else 0.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_open(svn_wc_adm_access_t **adm_access,
                svn_wc_adm_access_t *associated,
                const char *path,
                svn_boolean_t write_lock,
                svn_boolean_t tree_lock,
                apr_pool_t *pool);

/**
 * Checks the working copy to determine the node type of @a path.  If
 * @a path is a versioned directory then the behaviour is like that of
 * svn_wc_adm_open3(), otherwise, if @a path is a file or does not
 * exist, then the behaviour is like that of svn_wc_adm_open3() with
 * @a path replaced by the parent directory of @a path.  If @a path is
 * an unversioned directory, the behaviour is also like that of
 * svn_wc_adm_open3() on the parent, except that if the open fails,
 * then the returned #SVN_ERR_WC_NOT_DIRECTORY error refers to @a path,
 * not to @a path's parent.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 *    Callers should use a #svn_wc_context_t object to access the working
 *    copy.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_open3(svn_wc_adm_access_t **adm_access,
                       svn_wc_adm_access_t *associated,
                       const char *path,
                       svn_boolean_t write_lock,
                       int levels_to_lock,
                       svn_cancel_func_t cancel_func,
                       void *cancel_baton,
                       apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_probe_open3() without the cancel
 * functionality.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_open2(svn_wc_adm_access_t **adm_access,
                       svn_wc_adm_access_t *associated,
                       const char *path,
                       svn_boolean_t write_lock,
                       int levels_to_lock,
                       apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_probe_open2(), but with @a tree_lock instead of
 * @a levels_to_lock.  @a levels_to_lock is set to -1 if @a tree_lock
 * is @c TRUE, else 0.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_open(svn_wc_adm_access_t **adm_access,
                      svn_wc_adm_access_t *associated,
                      const char *path,
                      svn_boolean_t write_lock,
                      svn_boolean_t tree_lock,
                      apr_pool_t *pool);

/**
 * Open access batons for @a path and return in @a *anchor_access and
 * @a *target the anchor and target required to drive an editor.  Return
 * in @a *target_access the access baton for the target, which may be the
 * same as @a *anchor_access (in which case @a *target is the empty
 * string, never NULL).  All the access batons will be in the
 * @a *anchor_access set.
 *
 * @a levels_to_lock determines the levels_to_lock used when opening
 * @a path if @a path is a versioned directory, @a levels_to_lock is
 * ignored otherwise.  If @a write_lock is @c TRUE the access batons
 * will hold write locks.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton to determine
 * if the client has cancelled the operation.
 *
 * This function is essentially a combination of svn_wc_adm_open3() and
 * svn_wc_get_actual_target(), with the emphasis on reducing physical IO.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 *    Callers should use a #svn_wc_context_t object to access the working
 *    copy.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_open_anchor(svn_wc_adm_access_t **anchor_access,
                       svn_wc_adm_access_t **target_access,
                       const char **target,
                       const char *path,
                       svn_boolean_t write_lock,
                       int levels_to_lock,
                       svn_cancel_func_t cancel_func,
                       void *cancel_baton,
                       apr_pool_t *pool);

/** Return, in @a *adm_access, a pointer to an existing access baton associated
 * with @a path.  @a path must be a directory that is locked as part of the
 * set containing the @a associated access baton.
 *
 * If the requested access baton is marked as missing in, or is simply
 * absent from, @a associated, return #SVN_ERR_WC_NOT_LOCKED.
 *
 * @a pool is used only for local processing, it is not used for the batons.
 */
svn_error_t *
svn_wc_adm_retrieve(svn_wc_adm_access_t **adm_access,
                    svn_wc_adm_access_t *associated,
                    const char *path,
                    apr_pool_t *pool);

/** Check the working copy to determine the node type of @a path.  If
 * @a path is a versioned directory then the behaviour is like that of
 * svn_wc_adm_retrieve(), otherwise, if @a path is a file, an unversioned
 * directory, or does not exist, then the behaviour is like that of
 * svn_wc_adm_retrieve() with @a path replaced by the parent directory of
 * @a path.
 */
svn_error_t *
svn_wc_adm_probe_retrieve(svn_wc_adm_access_t **adm_access,
                          svn_wc_adm_access_t *associated,
                          const char *path,
                          apr_pool_t *pool);

/**
 * Try various ways to obtain an access baton for @a path.
 *
 * First, try to obtain @a *adm_access via svn_wc_adm_probe_retrieve(),
 * but if this fails because @a associated can't give a baton for
 * @a path or @a path's parent, then try svn_wc_adm_probe_open3(),
 * this time passing @a write_lock and @a levels_to_lock.  If there is
 * still no access because @a path is not a versioned directory, then
 * just set @a *adm_access to NULL and return success.  But if it is
 * because @a path is locked, then return the error #SVN_ERR_WC_LOCKED,
 * and the effect on @a *adm_access is undefined.  (Or if the attempt
 * fails for any other reason, return the corresponding error, and the
 * effect on @a *adm_access is also undefined.)
 *
 * If svn_wc_adm_probe_open3() succeeds, then add @a *adm_access to
 * @a associated.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton to determine
 * if the client has cancelled the operation.
 *
 * Use @a pool only for local processing, not to allocate @a *adm_access.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_try3(svn_wc_adm_access_t **adm_access,
                      svn_wc_adm_access_t *associated,
                      const char *path,
                      svn_boolean_t write_lock,
                      int levels_to_lock,
                      svn_cancel_func_t cancel_func,
                      void *cancel_baton,
                      apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_probe_try3() without the cancel
 * functionality.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_try2(svn_wc_adm_access_t **adm_access,
                      svn_wc_adm_access_t *associated,
                      const char *path,
                      svn_boolean_t write_lock,
                      int levels_to_lock,
                      apr_pool_t *pool);

/**
 * Similar to svn_wc_adm_probe_try2(), but with @a tree_lock instead of
 * @a levels_to_lock.  @a levels_to_lock is set to -1 if @a tree_lock
 * is @c TRUE, else 0.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_probe_try(svn_wc_adm_access_t **adm_access,
                     svn_wc_adm_access_t *associated,
                     const char *path,
                     svn_boolean_t write_lock,
                     svn_boolean_t tree_lock,
                     apr_pool_t *pool);


/** Give up the access baton @a adm_access, and its lock if any. This will
 * recursively close any batons in the same set that are direct
 * subdirectories of @a adm_access.  Any physical locks will be removed from
 * the working copy.  Lock removal is unconditional, there is no check to
 * determine if cleanup is required.
 *
 * Any temporary allocations are performed using @a scratch_pool.
 *
 * @since New in 1.6
 */
svn_error_t *
svn_wc_adm_close2(svn_wc_adm_access_t *adm_access,
                  apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_adm_close2(), but with the internal pool of @a adm_access
 * used for temporary allocations.
 *
 * @deprecated Provided for backward compabibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_adm_close(svn_wc_adm_access_t *adm_access);

/** Return the path used to open the access baton @a adm_access */
const char *
svn_wc_adm_access_path(const svn_wc_adm_access_t *adm_access);

/** Return the pool used by access baton @a adm_access */
apr_pool_t *
svn_wc_adm_access_pool(const svn_wc_adm_access_t *adm_access);

/** Return @c TRUE is the access baton @a adm_access has a write lock,
 * @c FALSE otherwise. Compared to svn_wc_locked() this is a cheap, fast
 * function that doesn't access the filesystem.
 *
 * New code should use svn_wc_locked2() instead.
 */
SVN_DEPRECATED
svn_boolean_t
svn_wc_adm_locked(const svn_wc_adm_access_t *adm_access);

/** Gets up to two booleans indicating whether a path is locked for
 * writing.
 *
 * @a locked_here is set to TRUE when a write lock on @a local_abspath
 * exists in @a wc_ctx. @a locked is set to TRUE when there is a
 * write_lock on @a local_abspath
 *
 * @a locked_here and/or @a locked can be NULL when you are not
 * interrested in a specific value
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_locked2(svn_boolean_t *locked_here,
               svn_boolean_t *locked,
               svn_wc_context_t *wc_ctx,
               const char *local_abspath,
               apr_pool_t *scratch_pool);

/** Set @a *locked to non-zero if @a path is locked, else set it to zero.
 *
 * New code should use svn_wc_locked2() instead.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_locked(svn_boolean_t *locked,
              const char *path,
              apr_pool_t *pool);


/**
 * Return @c TRUE if @a name is the name of the WC administrative
 * directory.  Use @a pool for any temporary allocations.  Only works
 * with base directory names, not paths or URIs.
 *
 * For compatibility, the default name (.svn) will always be treated
 * as an admin dir name, even if the working copy is actually using an
 * alternative name.
 *
 * @since New in 1.3.
 */
svn_boolean_t
svn_wc_is_adm_dir(const char *name, apr_pool_t *pool);


/**
 * Return the name of the administrative directory.
 * Use @a pool for any temporary allocations.
 *
 * The returned pointer will refer to either a statically allocated
 * string, or to a string allocated in @a pool.
 *
 * @since New in 1.3.
 */
const char *
svn_wc_get_adm_dir(apr_pool_t *pool);


/**
 * Use @a name for the administrative directory in the working copy.
 * Use @a pool for any temporary allocations.
 *
 * The list of valid names is limited.  Currently only ".svn" (the
 * default) and "_svn" are allowed.
 *
 * @note This function changes global (per-process) state and must be
 * called in a single-threaded context during the initialization of a
 * Subversion client.
 *
 * @since New in 1.3.
 */
svn_error_t *
svn_wc_set_adm_dir(const char *name,
                   apr_pool_t *pool);




/** Callback for external definitions updates
 *
 * @since New in 1.7. */
typedef svn_error_t *(*svn_wc_external_update_t)(void *baton,
                                                 const char *local_abspath,
                                                 const svn_string_t *old_val,
                                                 const svn_string_t *new_val,
                                                 svn_depth_t depth,
                                                 apr_pool_t *scratch_pool);

/** Traversal information is information gathered by a working copy
 * crawl or update.  For example, the before and after values of the
 * svn:externals property are important after an update, and since
 * we're traversing the working tree anyway (a complete traversal
 * during the initial crawl, and a traversal of changed paths during
 * the checkout/update/switch), it makes sense to gather the
 * property's values then instead of making a second pass.
 *
 * New code should use the svn_wc_external_update_t callback instead.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
typedef struct svn_wc_traversal_info_t svn_wc_traversal_info_t;


/** Return a new, empty traversal info object, allocated in @a pool.
 *
 * New code should use the svn_wc_external_update_t callback instead.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_wc_traversal_info_t *
svn_wc_init_traversal_info(apr_pool_t *pool);

/** Set @a *externals_old and @a *externals_new to hash tables representing
 * changes to values of the svn:externals property on directories
 * traversed by @a traversal_info.
 *
 * @a traversal_info is obtained from svn_wc_init_traversal_info(), but is
 * only useful after it has been passed through another function, such
 * as svn_wc_crawl_revisions(), svn_wc_get_update_editor(),
 * svn_wc_get_switch_editor(), etc.
 *
 * Each hash maps <tt>const char *</tt> directory names onto
 * <tt>const char *</tt> values of the externals property for that directory.
 * The dir names are full paths -- that is, anchor plus target, not target
 * alone. The values are not parsed, they are simply copied raw, and are
 * never NULL: directories that acquired or lost the property are
 * simply omitted from the appropriate table.  Directories whose value
 * of the property did not change show the same value in each hash.
 *
 * The hashes, keys, and values have the same lifetime as @a traversal_info.
 *
 * New code should use the svn_wc_external_update_t callback instead.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
void
svn_wc_edited_externals(apr_hash_t **externals_old,
                        apr_hash_t **externals_new,
                        svn_wc_traversal_info_t *traversal_info);


/** Set @a *depths to a hash table mapping <tt>const char *</tt>
 * directory names (directories traversed by @a traversal_info) to
 * <tt>const char *</tt> values (the depths of those directories, as
 * converted by svn_depth_to_word()).
 *
 * @a traversal_info is obtained from svn_wc_init_traversal_info(), but is
 * only useful after it has been passed through another function, such
 * as svn_wc_crawl_revisions(), svn_wc_get_update_editor(),
 * svn_wc_get_switch_editor(), etc.
 *
 * The dir names are full paths -- that is, anchor plus target, not target
 * alone.  The values are not allocated, they are static constant strings.
 * Although the values are never NULL, not all directories traversed
 * are necessarily listed.  For example, directories which did not
 * have an svn:externals property set or modified are not included.
 *
 * The hashes and keys have the same lifetime as @a traversal_info.
 *
 * New code should use the svn_wc_external_update_t callback instead.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
void
svn_wc_traversed_depths(apr_hash_t **depths,
                        svn_wc_traversal_info_t *traversal_info);


/** One external item.  This usually represents one line from an
 * svn:externals description but with the path and URL
 * canonicalized.
 *
 * In order to avoid backwards compatibility problems clients should use
 * svn_wc_external_item_create() to allocate and initialize this structure
 * instead of doing so themselves.
 *
 * @since New in 1.5.
 */
typedef struct svn_wc_external_item2_t
{
  /** The name of the subdirectory into which this external should be
      checked out.  This is relative to the parent directory that
      holds this external item.  (Note that these structs are often
      stored in hash tables with the target dirs as keys, so this
      field will often be redundant.) */
  const char *target_dir;

  /** Where to check out from. */
  const char *url;

  /** What revision to check out.  The only valid kinds for this are
      svn_opt_revision_number, svn_opt_revision_date, and
      svn_opt_revision_head. */
  svn_opt_revision_t revision;

  /** The peg revision to use when checking out.  The only valid kinds are
      svn_opt_revision_number, svn_opt_revision_date, and
      svn_opt_revision_head. */
  svn_opt_revision_t peg_revision;

} svn_wc_external_item2_t;

/**
 * Initialize an external item.
 * Set @a *item to an external item object, allocated in @a pool.
 *
 * In order to avoid backwards compatibility problems, this function
 * is used to initialize and allocate the #svn_wc_external_item2_t
 * structure rather than doing so explicitly, as the size of this
 * structure may change in the future.
 *
 * The current implementation never returns error, but callers should
 * still check for error, for compatibility with future versions.
 *
 * @since New in 1.5.
 */
svn_error_t *
svn_wc_external_item_create(const svn_wc_external_item2_t **item,
                            apr_pool_t *pool);

/**
 * Return a duplicate of @a item, allocated in @a pool.  No part of the new
 * item will be shared with @a item.
 *
 * @since New in 1.5.
 */
svn_wc_external_item2_t *
svn_wc_external_item2_dup(const svn_wc_external_item2_t *item,
                          apr_pool_t *pool);

/**
 * One external item.  Similar to svn_wc_external_item2_t, except
 * @a revision is interpreted as both the operational revision and the
 * peg revision.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
typedef struct svn_wc_external_item_t
{
  /** Same as #svn_wc_external_item2_t.target_dir */
  const char *target_dir;

  /** Same as #svn_wc_external_item2_t.url */
  const char *url;

  /** Same as #svn_wc_external_item2_t.revision */
  svn_opt_revision_t revision;

} svn_wc_external_item_t;

/**
 * Return a duplicate of @a item, allocated in @a pool.  No part of the new
 * item will be shared with @a item.
 *
 * @since New in 1.3.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_wc_external_item_t *
svn_wc_external_item_dup(const svn_wc_external_item_t *item,
                         apr_pool_t *pool);

/**
 * If @a externals_p is non-NULL, set @a *externals_p to an array of
 * #svn_wc_external_item2_t * objects based on @a desc.  The @a url
 * member of the objects will be canonicalized if @a canonicalize_url
 * is @c TRUE.
 *
 * If the format of @a desc is invalid, don't touch @a *externals_p and
 * return #SVN_ERR_CLIENT_INVALID_EXTERNALS_DESCRIPTION.  Thus, if
 * you just want to check the validity of an externals description,
 * and don't care about the parsed result, pass NULL for @a externals_p.
 *
 * The format of @a desc is the same as for values of the directory
 * property #SVN_PROP_EXTERNALS.  Look there for more details.
 *
 * Allocate the table, keys, and values in @a pool.
 *
 * Use @a parent_directory only in constructing error strings.
 *
 * @since New in 1.5.
 */
svn_error_t *
svn_wc_parse_externals_description3(apr_array_header_t **externals_p,
                                    const char *parent_directory,
                                    const char *desc,
                                    svn_boolean_t canonicalize_url,
                                    apr_pool_t *pool);

/**
 * Similar to svn_wc_parse_externals_description3() with @a
 * canonicalize_url set to @c TRUE, but returns an array of
 * #svn_wc_external_item_t * objects instead of
 * #svn_wc_external_item2_t * objects
 *
 * @since New in 1.1.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_parse_externals_description2(apr_array_header_t **externals_p,
                                    const char *parent_directory,
                                    const char *desc,
                                    apr_pool_t *pool);

/**
 * Similar to svn_wc_parse_externals_description2(), but returns the
 * parsed externals in a hash instead of an array.  This function
 * should not be used, as storing the externals in a hash causes their
 * order of evaluation to be not easily identifiable.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_parse_externals_description(apr_hash_t **externals_p,
                                   const char *parent_directory,
                                   const char *desc,
                                   apr_pool_t *pool);



/* Notification/callback handling. */

/**
 * @defgroup svn_wc_notifications Notification callback handling
 * @{
 *
 * In many cases, the WC library will scan a working copy and make
 * changes. The caller usually wants to know when each of these changes
 * has been made, so that it can display some kind of notification to
 * the user.
 *
 * These notifications have a standard callback function type, which
 * takes the path of the file that was affected, and a caller-
 * supplied baton.
 *
 * @note The callback is a 'void' return -- this is a simple
 * reporting mechanism, rather than an opportunity for the caller to
 * alter the operation of the WC library.
 *
 * @note Some of the actions are used across several
 * different Subversion commands.  For example, the update actions are
 * also used for checkouts, switches, and merges.
 */

/** The type of action occurring. */
typedef enum svn_wc_notify_action_t
{
  /** Adding a path to revision control. */
  svn_wc_notify_add = 0,

  /** Copying a versioned path. */
  svn_wc_notify_copy,

  /** Deleting a versioned path. */
  svn_wc_notify_delete,

  /** Restoring a missing path from the pristine text-base. */
  svn_wc_notify_restore,

  /** Reverting a modified path. */
  svn_wc_notify_revert,

  /** A revert operation has failed. */
  svn_wc_notify_failed_revert,

  /** Resolving a conflict. */
  svn_wc_notify_resolved,

  /** Skipping a path. */
  svn_wc_notify_skip,

  /** Got a delete in an update. */
  svn_wc_notify_update_delete,

  /** Got an add in an update. */
  svn_wc_notify_update_add,

  /** Got any other action in an update. */
  svn_wc_notify_update_update,

  /** The last notification in an update (including updates of externals). */
  svn_wc_notify_update_completed,

  /** Updating an external module. */
  svn_wc_notify_update_external,

  /** The last notification in a status (including status on externals). */
  svn_wc_notify_status_completed,

  /** Running status on an external module. */
  svn_wc_notify_status_external,

  /** Committing a modification. */
  svn_wc_notify_commit_modified,

  /** Committing an addition. */
  svn_wc_notify_commit_added,

  /** Committing a deletion. */
  svn_wc_notify_commit_deleted,

  /** Committing a replacement. */
  svn_wc_notify_commit_replaced,

  /** Transmitting post-fix text-delta data for a file. */
  svn_wc_notify_commit_postfix_txdelta,

  /** Processed a single revision's blame. */
  svn_wc_notify_blame_revision,

  /** Locking a path. @since New in 1.2. */
  svn_wc_notify_locked,

  /** Unlocking a path. @since New in 1.2. */
  svn_wc_notify_unlocked,

  /** Failed to lock a path. @since New in 1.2. */
  svn_wc_notify_failed_lock,

  /** Failed to unlock a path. @since New in 1.2. */
  svn_wc_notify_failed_unlock,

  /** Tried adding a path that already exists. @since New in 1.5. */
  svn_wc_notify_exists,

  /** Changelist name set. @since New in 1.5. */
  svn_wc_notify_changelist_set,

  /** Changelist name cleared. @since New in 1.5. */
  svn_wc_notify_changelist_clear,

  /** Warn user that a path has moved from one changelist to another.
      @since New in 1.5. */
  svn_wc_notify_changelist_moved,

  /** A merge operation (to path) has begun.  See #svn_wc_notify_t.merge_range.
      @since New in 1.5. */
  svn_wc_notify_merge_begin,

  /** A merge operation (to path) from a foreign repository has begun.
      See #svn_wc_notify_t.merge_range.  @since New in 1.5. */
  svn_wc_notify_foreign_merge_begin,

  /** Replace notification. @since New in 1.5. */
  svn_wc_notify_update_replace,

  /** Property added. @since New in 1.6. */
  svn_wc_notify_property_added,

  /** Property updated. @since New in 1.6. */
  svn_wc_notify_property_modified,

  /** Property deleted. @since New in 1.6. */
  svn_wc_notify_property_deleted,

  /** Nonexistent property deleted. @since New in 1.6. */
  svn_wc_notify_property_deleted_nonexistent,

  /** Revprop set. @since New in 1.6. */
  svn_wc_notify_revprop_set,

  /** Revprop deleted. @since New in 1.6. */
  svn_wc_notify_revprop_deleted,

  /** The last notification in a merge. @since New in 1.6. */
  svn_wc_notify_merge_completed,

  /** The path is a tree-conflict victim of the intended action (*not*
   * a persistent tree-conflict from an earlier operation, but *this*
   * operation caused the tree-conflict). @since New in 1.6. */
  svn_wc_notify_tree_conflict,

  /** The path is a subdirectory referenced in an externals definition
   * which is unable to be operated on.  @since New in 1.6. */
  svn_wc_notify_failed_external,

  /** An update tried to add a file or directory at path but an
   * unversioned obstruction was found.  @since New in 1.7. */
  svn_wc_notify_update_obstruction,

  /** An update operation removed an external working copy.
   * @since New in 1.7. */
  svn_wc_notify_update_external_removed,

  /** A node below a deleted and tree conflicted directory was added
   *  during update @since New in 1.7. */
  svn_wc_notify_update_add_deleted,

  /** A node below a deleted and tree conflicted directory was updated
   * @since New in 1.7. */
  svn_wc_notify_update_update_deleted,

  /* The mergeinfo on path was updated.  @since New in 1.7. */
  svn_wc_notify_merge_record_info,

  /** An working copy directory was upgraded to the latest format
   * @since New in 1.7. */
  svn_wc_notify_upgraded_path,

  /** Mergeinfo describing a merge was recorded.
   * @since New in 1.7. */
  svn_wc_notify_merge_record_info_begin,

  /** Mergeinfo was removed due to elision.
   * @since New in 1.7. */
  svn_wc_notify_merge_elide_info,

  /** A file in the working copy was patched.
   * @since New in 1.7. */
  svn_wc_notify_patch,

  /** A hunk from a patch was applied.
   * @since New in 1.7. */
  svn_wc_notify_patch_applied_hunk,

  /** A hunk from a patch was rejected.
   * @since New in 1.7. */
  svn_wc_notify_patch_rejected_hunk,
} svn_wc_notify_action_t;


/** The type of notification that is occurring. */
typedef enum svn_wc_notify_state_t
{
  svn_wc_notify_state_inapplicable = 0,

  /** Notifier doesn't know or isn't saying. */
  svn_wc_notify_state_unknown,

  /** The state did not change. */
  svn_wc_notify_state_unchanged,

  /** The item wasn't present. */
  svn_wc_notify_state_missing,

  /** An unversioned item obstructed work. */
  svn_wc_notify_state_obstructed,

  /** Pristine state was modified. */
  svn_wc_notify_state_changed,

  /** Modified state had mods merged in. */
  svn_wc_notify_state_merged,

  /** Modified state got conflicting mods. */
  svn_wc_notify_state_conflicted,

  /** The source to copy the file from is missing. */
  svn_wc_notify_state_source_missing

} svn_wc_notify_state_t;

/**
 * What happened to a lock during an operation.
 *
 * @since New in 1.2.
 */
typedef enum svn_wc_notify_lock_state_t
{
  svn_wc_notify_lock_state_inapplicable = 0,

  svn_wc_notify_lock_state_unknown,

  /** The lock wasn't changed. */
  svn_wc_notify_lock_state_unchanged,

  /** The item was locked. */
  svn_wc_notify_lock_state_locked,

  /** The item was unlocked. */
  svn_wc_notify_lock_state_unlocked

} svn_wc_notify_lock_state_t;

/**
 * Structure used in the #svn_wc_notify_func2_t function.
 *
 * @c kind, @c content_state, @c prop_state and @c lock_state are from
 * after @c action, not before.
 *
 * @note If @c action is #svn_wc_notify_update (### what?), then @c path has
 * already been installed, so it is legitimate for an implementation of
 * #svn_wc_notify_func2_t to examine @c path in the working copy.
 *
 * @note The purpose of the @c kind, @c mime_type, @c content_state, and
 * @c prop_state fields is to provide "for free" information that an
 * implementation is likely to want, and which it would otherwise be
 * forced to deduce via expensive operations such as reading entries
 * and properties.  However, if the caller does not have this
 * information, it will simply pass the corresponding `*_unknown'
 * values, and it is up to the implementation how to handle that
 * (i.e., whether to attempt deduction, or just to punt and
 * give a less informative notification).
 *
 * @note Callers of notification functions should use svn_wc_create_notify()
 * or svn_wc_create_notify_url() to create structures of this type to allow
 * for extensibility.
 *
 * @since New in 1.2.
 */
typedef struct svn_wc_notify_t {

  /** Path, either absolute or relative to the current working directory
   * (i.e., not relative to an anchor).  @c path is "." or another valid path
   * value for compatibilty reasons when the real target is an url that
   * is available in @c url. */
  const char *path;

  /** Action that describes what happened to #svn_wc_notify_t.path. */
  svn_wc_notify_action_t action;

  /** Node kind of @c path. */
  svn_node_kind_t kind;

  /** If non-NULL, indicates the mime-type of @c path.
   * It is always @c NULL for directories. */
  const char *mime_type;

  /** Points to the lock structure received from the repository when
   * @c action is #svn_wc_notify_locked.  For other actions, it is
   * @c NULL. */
  const svn_lock_t *lock;

  /** Points to an error describing the reason for the failure when @c
   * action is one of the following: #svn_wc_notify_failed_lock,
   * #svn_wc_notify_failed_unlock, #svn_wc_notify_failed_external.
   * Is @c NULL otherwise. */
  svn_error_t *err;

  /** The type of notification that is occurring about node content. */
  svn_wc_notify_state_t content_state;

  /** The type of notification that is occurring about node properties. */
  svn_wc_notify_state_t prop_state;

  /** Reflects the addition or removal of a lock token in the working copy. */
  svn_wc_notify_lock_state_t lock_state;

  /** When @c action is #svn_wc_notify_update_completed, target revision
   * of the update, or #SVN_INVALID_REVNUM if not available; when @c
   * action is #svn_wc_notify_blame_revision, processed revision; Since
   * Subversion 1.7 when action is #svn_wc_notify_update_update or
   * #svn_wc_notify_update_add, the target revision.
   * In all other cases, it is #SVN_INVALID_REVNUM.
   */
  svn_revnum_t revision;

  /** When @c action is #svn_wc_notify_changelist_add or name. (### What?)
   * In all other cases, it is @c NULL.  @since New in 1.5 */
  const char *changelist_name;

  /** When @c action is #svn_wc_notify_merge_begin, and both the
   * left and right sides of the merge are from the same URL.  In all
   * other cases, it is @c NULL.  @since New in 1.5 */
  svn_merge_range_t *merge_range;

  /** Similar to @c path, but if non-NULL the notification is about a url.
   * @since New in 1.6 */
  const char *url;

  /** If non-NULL, specifies an absolute path prefix that can be subtracted
   * from the start of the absolute path in @c path or @c url.  Its purpose
   * is to allow notification to remove a common prefix from all the paths
   * displayed for an operation.  @since New in 1.6 */
  const char *path_prefix;

  /** If @c action relates to properties, specifies the name of the property.
   * @since New in 1.6 */
  const char *prop_name;

  /** If @c action is #svn_wc_notify_blame_revision, contains a list of
   * revision properties for the specified revision
   * @since New in 1.6 */
  apr_hash_t *rev_props;

  /** If @c action is #svn_wc_notify_update_update or
   * #svn_wc_notify_update_add, contains the revision before the update.
   * In all other cases, it is #SVN_INVALID_REVNUM.
   * @since New in 1.7 */
  svn_revnum_t old_revision;

  /* These fields are used by svn patch to identify the
   * hunk the notification is for. They are line-based
   * offsets and lengths parsed from the unidiff hunk header.
   * @since New in 1.7. */
  svn_linenum_t hunk_original_start;
  svn_linenum_t hunk_original_length;
  svn_linenum_t hunk_modified_start;
  svn_linenum_t hunk_modified_length;

  /* The line at which a hunk was matched (and applied).
   * @since New in 1.7. */
  svn_linenum_t hunk_matched_line;

  /* The fuzz factor the hunk was applied with.
   * @since New in 1.7 */
  int hunk_fuzz;

  /* NOTE: Add new fields at the end to preserve binary compatibility.
     Also, if you add fields here, you have to update svn_wc_create_notify
     and svn_wc_dup_notify. */
} svn_wc_notify_t;

/**
 * Allocate an #svn_wc_notify_t structure in @a pool, initialize and return
 * it.
 *
 * Set the @c path field of the created struct to @a path, and @c action to
 * @a action.  Set all other fields to their @c _unknown, @c NULL or
 * invalid value, respectively. Make only a shallow copy of the pointer
 * @a path.
 *
 * @since New in 1.2.
 */
svn_wc_notify_t *
svn_wc_create_notify(const char *path,
                     svn_wc_notify_action_t action,
                     apr_pool_t *pool);

/**
 * Allocate an #svn_wc_notify_t structure in @a pool, initialize and return
 * it.
 *
 * Set the @c url field of the created struct to @a url, @c path to "." and @c
 * action to @a action.  Set all other fields to their @c _unknown, @c NULL or
 * invalid value, respectively. Make only a shallow copy of the pointer
 * @a url.
 *
 * @since New in 1.6.
 */
svn_wc_notify_t *
svn_wc_create_notify_url(const char *url,
                         svn_wc_notify_action_t action,
                         apr_pool_t *pool);

/**
 * Return a deep copy of @a notify, allocated in @a pool.
 *
 * @since New in 1.2.
 */
svn_wc_notify_t *
svn_wc_dup_notify(const svn_wc_notify_t *notify,
                  apr_pool_t *pool);

/**
 * Notify the world that @a notify->action has happened to @a notify->path.
 *
 * Recommendation: callers of #svn_wc_notify_func2_t should avoid
 * invoking it multiple times on the same path within a given
 * operation, and implementations should not bother checking for such
 * duplicate calls.  For example, in an update, the caller should not
 * invoke the notify func on receiving a prop change and then again
 * on receiving a text change.  Instead, wait until all changes have
 * been received, and then invoke the notify func once (from within
 * an #svn_delta_editor_t's close_file(), for example), passing
 * the appropriate @a notify->content_state and @a notify->prop_state flags.
 *
 * @since New in 1.2.
 */
typedef void (*svn_wc_notify_func2_t)(void *baton,
                                      const svn_wc_notify_t *notify,
                                      apr_pool_t *pool);

/**
 * Similar to #svn_wc_notify_func2_t, but takes the information as arguments
 * instead of struct fields.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
typedef void (*svn_wc_notify_func_t)(void *baton,
                                     const char *path,
                                     svn_wc_notify_action_t action,
                                     svn_node_kind_t kind,
                                     const char *mime_type,
                                     svn_wc_notify_state_t content_state,
                                     svn_wc_notify_state_t prop_state,
                                     svn_revnum_t revision);

/** @} */


/**
 * A simple callback type to wrap svn_ra_get_file();  see that
 * docstring for more information.
 *
 * This technique allows libsvn_client to 'wrap' svn_ra_get_file() and
 * pass it down into libsvn_wc functions, thus allowing the WC layer
 * to legally call the RA function via (blind) callback.
 *
 * @since New in 1.5
 */
typedef svn_error_t *(*svn_wc_get_file_t)(void *baton,
                                          const char *path,
                                          svn_revnum_t revision,
                                          svn_stream_t *stream,
                                          svn_revnum_t *fetched_rev,
                                          apr_hash_t **props,
                                          apr_pool_t *pool);


/**
 * Interactive conflict handling
 *
 * @defgroup svn_wc_conflict Conflict callback functionality
 *
 * @{
 *
 * This API gives a Subversion client application the opportunity to
 * define a callback that allows the user to resolve conflicts
 * interactively during updates and merges.
 *
 * If a conflict is discovered, libsvn_wc invokes the callback with an
 * #svn_wc_conflict_description_t.  This structure describes the
 * path in conflict, whether it's a text or property conflict, and may
 * also present up to three files that can be used to resolve the
 * conflict (perhaps by launching an editor or 3rd-party merging
 * tool).  The structure also provides a possible fourth file (@c
 * merged_file) which, if not NULL, represents libsvn_wc's attempt to
 * contextually merge the first three files.  (Note that libsvn_wc
 * will not attempt to merge a file that it believes is binary, and it
 * will only attempt to merge property values it believes to be a
 * series of multi-line text.)
 *
 * When the callback is finished interacting with the user, it
 * responds by returning a #svn_wc_conflict_result_t.  This
 * structure indicates whether the user wants to postpone the conflict
 * for later (allowing libsvn_wc to mark the path "conflicted" as
 * usual), or whether the user wants libsvn_wc to use one of the four
 * files as the "final" state for resolving the conflict immediately.
 *
 * Note that the callback is at liberty (and encouraged) to merge the
 * three files itself.  If it does so, it signals this to libsvn_wc by
 * returning a choice of #svn_wc_conflict_choose_merged.  To return
 * the 'final' merged file to libsvn_wc, the callback has the option of
 * either:
 *
 *    - editing the original @c merged_file in-place
 *
 *        or, if libsvn_wc never supplied a merged_file in the
 *        description structure (i.e. passed NULL for that field),
 *
 *    - return the merged file in the #svn_wc_conflict_result_t.
 *
 */

/** The type of action being attempted on an object.
 *
 * @since New in 1.5.
 */
typedef enum svn_wc_conflict_action_t
{
  svn_wc_conflict_action_edit,    /* attempting to change text or props */
  svn_wc_conflict_action_add,     /* attempting to add object */
  svn_wc_conflict_action_delete,  /* attempting to delete object */
  svn_wc_conflict_action_replace  /* attempting to replace object,
                                     @since New in 1.7 */
} svn_wc_conflict_action_t;


/** The pre-existing condition which is causing a state of conflict.
 *
 * @since New in 1.5.
 */
typedef enum svn_wc_conflict_reason_t
{
  /** Local edits are already present */
  svn_wc_conflict_reason_edited,
  /** Another object is in the way */
  svn_wc_conflict_reason_obstructed,
  /** Object is already schedule-delete */
  svn_wc_conflict_reason_deleted,
  /** Object is unknown or missing */
  svn_wc_conflict_reason_missing,
  /** Object is unversioned */
  svn_wc_conflict_reason_unversioned,
  /** Object is already added or schedule-add. @since New in 1.6. */
  svn_wc_conflict_reason_added,
  /** Object is already replaced. @since New in 1.7. */
  svn_wc_conflict_reason_replaced

} svn_wc_conflict_reason_t;


/** The type of conflict being described by an
 * #svn_wc_conflict_description2_t (see below).
 *
 * @since New in 1.5.
 */
typedef enum svn_wc_conflict_kind_t
{
  /** textual conflict (on a file) */
  svn_wc_conflict_kind_text,
  /** property conflict (on a file or dir) */
  svn_wc_conflict_kind_property,
  /** tree conflict (on a dir) @since New in 1.6. */
  svn_wc_conflict_kind_tree
} svn_wc_conflict_kind_t;


/** The user operation that exposed a conflict.
 *
 * @since New in 1.6.
 */
typedef enum svn_wc_operation_t
{
  svn_wc_operation_none = 0,
  svn_wc_operation_update,
  svn_wc_operation_switch,
  svn_wc_operation_merge

} svn_wc_operation_t;


/** Info about one of the conflicting versions of a node. Each field may
 * have its respective null/invalid/unknown value if the corresponding
 * information is not relevant or not available.
 *
 * @todo Consider making some or all of the info mandatory, to reduce
 * complexity.
 *
 * @note Fields may be added to the end of this structure in future
 * versions.  Therefore, to preserve binary compatibility, users
 * should not directly allocate structures of this type.
 *
 * @see svn_wc_conflict_version_create()
 * @see svn_wc_conflict_version_dup()
 *
 * @since New in 1.6.
*/
typedef struct svn_wc_conflict_version_t
{
  /** @name Where to find this node version in a repository */
  /**@{*/

  /** URL of repository root */
  const char *repos_url;

  /** revision at which to look up path_in_repos */
  svn_revnum_t peg_rev;

  /** path within repos; must not start with '/' */
  const char *path_in_repos;
  /* @todo We may decide to add the repository UUID, to handle conflicts
   * properly during a repository move. */
  /** @} */

  /** Info about this node */
  svn_node_kind_t node_kind;  /* note that 'none' is a legitimate value */

  /* @todo Add metadata about a local copy of the node, if and when
   * we store one. */

  /* Remember to update svn_wc_conflict_version_create() and
   * svn_wc_conflict_version_dup() in case you add fields to this struct. */
} svn_wc_conflict_version_t;

/**
 * Allocate an #svn_wc_conflict_version_t structure in @a pool,
 * initialize to contain a conflict origin, and return it.
 *
 * Set the @c repos_url field of the created struct to @a repos_url, the
 * @c path_in_repos field to @a path_in_repos, the @c peg_rev field to
 * @a peg_rev and the the @c node_kind to @c node_kind. Make only shallow
 * copies of the pointer arguments.
 *
 * @since New in 1.6.
 */
svn_wc_conflict_version_t *
svn_wc_conflict_version_create(const char *repos_url,
                               const char *path_in_repos,
                               svn_revnum_t peg_rev,
                               svn_node_kind_t node_kind,
                               apr_pool_t *pool);

/** Return a duplicate of @a version, allocated in @a pool.
 * No part of the new version will be shared with @a version.
 *
 * @since New in 1.6.
 */
svn_wc_conflict_version_t *
svn_wc_conflict_version_dup(const svn_wc_conflict_version_t *version,
                            apr_pool_t *pool);


/** An opaque structure that describes a conflict that has occurred on a
 * specific target in a working copy. Passed to the conflict helper
 * functions and to #svn_wc_conflict_resolver_func2_t when performing
 * interactive conflict resolving.
 *
 * @since New in 1.7.
 */
 /* ### We use svn_wc_conflict_t as non constant to allow delayloading
        values. */
typedef struct svn_wc_conflict_t svn_wc_conflict_t;

/** Duplicates a @a base conflict, to a @a duplicate conflict, allocated
 * in @a result_pool.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_conflict_dup(svn_wc_conflict_t **duplicate,
                    const svn_wc_conflict_t *base,
                    apr_pool_t *result_pool);

/** Read information about @a conflict, as it applies to @a local_abspath
 * in @a wc_ctx.
 *
 * If @a kind is not NULL, retrieves the kind of conflict.
 *
 * If @a property_name is not NULL, retrieves the name of the property
 * where this conflict applies to. @a property_name is NULL, when this
 * information is not available. (This information is not always recorded).
 *
 * If @a action is not NULL, retrieves the action that raised the conflict
 * or #svn_wc_conflict_action_edit if no action was recorded.
 *
 * If @a reason is not NULL, retrieves the reason why the conflict was
 * raised or #svn_wc_conflict_reason_t if no reason was recorded.
 *
 * If @a operation is not NULL, retrieves the operation that was performed
 * when the conflict was raised or #svn_wc_operation_none if no operation
 * was recorded.
 *
 * If @a conflict_resolved is not NULL, conflict type specific checks are
 * performed to see if this conflict is resolved. (E.g. for file and property
 * conflicts the marker and rejection files are tested for availablity).
 * If the conflict is resolved sets @a *conflict_resolved to TRUE, otherwise
 * to FALSE.
 *
 * @since New in 1.7.
 */
/* ### Separate in more methods like the WC-1.0 api, or add more
       to remove other apis, like we do in WC-NG? */
svn_error_t *
svn_wc_get_conflict_info(svn_wc_conflict_kind_t *kind,
                         const char **property_name,
                         svn_wc_conflict_action_t *action,
                         svn_wc_conflict_reason_t *reason,
                         svn_wc_operation_t *operation,
                         svn_boolean_t *conflict_resolved,
                         svn_wc_context_t *wc_ctx,
                         const char *local_abspath,
                         svn_wc_conflict_t *conflict,
                         apr_pool_t *result_pool,
                         apr_pool_t *scratch_pool);

/** Retrieves the conflict marker file locations recorded in @a conflict,
 * as it applies to @a local_abspath in @a wc_ctx.
 *
 * For text and property conflicts older is the BASE version, left the MINE
 * version and right the THEIRS version. Depending on the type of conflict,
 * some or all of these values might be NULL.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_conflict_marker_files(const char **older_abspath,
                                 const char **left_abspath,
                                 const char **right_abspath,
                                 svn_wc_context_t *wc_ctx,
                                 const char *local_abspath,
                                 svn_wc_conflict_t *conflict,
                                 apr_pool_t *result_pool,
                                 apr_pool_t *scratch_pool);

/** Retrieves the origin of the conflict recorded in @a conflict, as it
 * applies to @a local_abspath in @a wc_ctx.
 *
 * For text and property conflicts older is the BASE version, left the MINE
 * version and right the THEIRS version. Depending on the type of conflict,
 * some or all of these values might be NULL.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_conflict_sources(const svn_wc_conflict_version_t **older_version,
                            const svn_wc_conflict_version_t **left_version,
                            const svn_wc_conflict_version_t **right_version,
                            svn_wc_context_t *wc_ctx,
                            const char *local_abspath,
                            svn_wc_conflict_t *conflict,
                            apr_pool_t *result_pool,
                            apr_pool_t *scratch_pool);

/** Retrieves the values of the conflicted property recorded in @a
 * conflict, as it applies to @a local_abspath in @a wc_ctx.
 *
 * If @a older_value, @a left_value and/or @a right_value are not NULL,
 * retrieves this property value as recorded in the conflict data. A
 * returned NULL indicates that the property was not available in that
 * version. (If #svn_wc_get_conflict_info doesn't provide a property
 * name, no property data was recorded in the property conflict)
 *
 * For property conflicts older is the BASE version, left the MINE
 * version and right the THEIRS version.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_property_conflict_data(const svn_string_t **older_value,
                                  const svn_string_t **left_value,
                                  const svn_string_t **right_value,
                                  svn_wc_context_t *wc_ctx,
                                  const char *local_abspath,
                                  svn_wc_conflict_t *conflict,
                                  apr_pool_t *result_pool,
                                  apr_pool_t *scratch_pool);

/** Creates a new property conflict, recording the passed values.
 *
 * @a property_name must be set to the conflicted property name or ""
 * if no property name is available. (Older api compatibility)
 *
 * @a older_version, @a left_version and @a right_version can be
 * NULL for compatibility with older apis.
 *
 * Iif @a property_name is not "", @a older_value, @a left_value and
 * @a right_value must be set to the values of property in these versions.
 * (which could be NULL if the property does not exist there).
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_create_property_conflict(svn_wc_conflict_t **conflict,
                                const char *property_name,
                                const svn_wc_conflict_version_t *older_version,
                                const svn_wc_conflict_version_t *left_version,
                                const svn_wc_conflict_version_t *right_version,
                                const svn_string_t *older_value,
                                const svn_string_t *left_value,
                                const svn_string_t *right_value,
                                const char *marker_abspath,
                                svn_wc_operation_t operation,
                                apr_pool_t *result_pool,
                                apr_pool_t *scratch_pool);

/** Creates a new text conflict, recording the passed values.
 *
 * @a older_version, @a left_version and @a right_version can be NULL,
 * for compatibility with older apis.
 *
 * @a older_abspath, @a left_abspath and @a right_abspath can be NULL,
 * @a indicating that the file did not exist in that version.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_create_text_conflict(svn_wc_conflict_t **conflict,
                            const svn_wc_conflict_version_t *older_version,
                            const svn_wc_conflict_version_t *left_version,
                            const svn_wc_conflict_version_t *right_version,
                            const char *older_abspath,
                            const char *left_abspath,
                            const char *right_abspath,
                            svn_wc_operation_t operation,
                            apr_pool_t *result_pool,
                            apr_pool_t *scratch_pool);

/** Creates a new tree conflict @a conflict, recording the passed values.
 * All values except @a older_version must be non-NULL. @a older_version
 * can be NULL for backwards compatibility with older apis.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_create_tree_conflict(svn_wc_conflict_t **conflict,
                            const svn_wc_conflict_version_t *older_version,
                            const svn_wc_conflict_version_t *left_version,
                            const svn_wc_conflict_version_t *right_version,
                            svn_wc_conflict_action_t action,
                            svn_wc_conflict_reason_t reason,
                            svn_wc_operation_t operation,
                            apr_pool_t *result_pool,
                            apr_pool_t *scratch_pool);

/** A struct that describes a conflict that has occurred in the
 * working copy.
 *
 * The conflict described by this structure is one of:
 *   - a conflict on the content of the file node @a local_abspath
 *   - a conflict on the property @a property_name of @a local_abspath
 *   - a tree conflict, of which @a local_abspath is the victim
 * Be aware that the victim of a tree conflict can be a non-existent node.
 * The three kinds of conflict are distinguished by @a kind.
 *
 * @note Fields may be added to the end of this structure in future
 * versions.  Therefore, to preserve binary compatibility, users
 * should not directly allocate structures of this type but should use
 * svn_wc_create_conflict_description_text2() or
 * svn_wc_create_conflict_description_prop2() or
 * svn_wc_create_conflict_description_tree2() instead.
 *
 * @since New in 1.7.
 */
typedef struct svn_wc_conflict_description2_t
{
  /** The path that is in conflict (for a tree conflict, it is the victim) */
  const char *local_abspath;

  /** The node type of the path being operated on (for a tree conflict,
   *  ### which version?) */
  svn_node_kind_t node_kind;

  /** What sort of conflict are we describing? */
  svn_wc_conflict_kind_t kind;

  /** The name of the property whose conflict is being described.
   *  (Only if @a kind is 'property'; else undefined.) */
  const char *property_name;

  /** Whether svn thinks ('my' version of) @c path is a 'binary' file.
   *  (Only if @c kind is 'text', else undefined.) */
  svn_boolean_t is_binary;

  /** The svn:mime-type property of ('my' version of) @c path, if available,
   *  else NULL.
   *  (Only if @c kind is 'text', else undefined.) */
  const char *mime_type;

  /** The action being attempted on the conflicted node or property.
   *  (When @c kind is 'text', this action must be 'edit'.) */
  svn_wc_conflict_action_t action;

  /** The state of the target node or property, relative to its merge-left
   *  source, that is the reason for the conflict.
   *  (When @c kind is 'text', this reason must be 'edited'.) */
  svn_wc_conflict_reason_t reason;

  /** If this is text-conflict and involves the merging of two files
   * descended from a common ancestor, here are the paths of up to
   * four fulltext files that can be used to interactively resolve the
   * conflict.
   *
   * ### Are these paths relative to some directory, or absolute?
   *
   * All four files will be in repository-normal form -- LF
   * line endings and contracted keywords.  (If any of these files are
   * not available, they default to NULL.)
   *
   * On the other hand, if this is a property-conflict, then these
   * paths represent temporary files that contain the three different
   * property-values in conflict.  The fourth path (@c merged_file)
   * may or may not be NULL;  if set, it represents libsvn_wc's
   * attempt to merge the property values together.  (Remember that
   * property values are technically binary values, and thus can't
   * always be merged.)
   */
  const char *base_file;     /* common ancestor of the two files being merged */

  /** their version of the file */
  /* ### BH: For properties this field contains the reference to
             the property rejection (.prej) file */
  const char *their_file;

  /** my locally-edited version of the file */
  const char *my_file;

  /** merged version; may contain conflict markers */
  const char *merged_file;

  /** The operation that exposed the conflict.
   * Used only for tree conflicts.
   */
  svn_wc_operation_t operation;

  /** Info on the "merge-left source" or "older" version of incoming change. */
  const svn_wc_conflict_version_t *src_left_version;

  /** Info on the "merge-right source" or "their" version of incoming change. */
  const svn_wc_conflict_version_t *src_right_version;

  /* Remember to adjust svn_wc__conflict_description_dup()
   * if you add new fields to this struct. */
} svn_wc_conflict_description2_t;


/** Similar to #svn_wc_conflict_description2_t, but with relative paths and
 * adm_access batons.  Passed to #svn_wc_conflict_resolver_func_t.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
typedef struct svn_wc_conflict_description_t
{
  /** The path that is in conflict (for a tree conflict, it is the victim) */
  const char *path;

  /** The node type of the path being operated on (for a tree conflict,
   *  ### which version?) */
  svn_node_kind_t node_kind;

  /** What sort of conflict are we describing? */
  svn_wc_conflict_kind_t kind;

  /** The name of the property whose conflict is being described.
   *  (Only if @a kind is 'property'; else undefined.) */
  const char *property_name;

  /** Whether svn thinks ('my' version of) @c path is a 'binary' file.
   *  (Only if @c kind is 'text', else undefined.) */
  svn_boolean_t is_binary;

  /** The svn:mime-type property of ('my' version of) @c path, if available,
   *  else NULL.
   *  (Only if @c kind is 'text', else undefined.) */
  const char *mime_type;

  /** If not NULL, an open working copy access baton to either the
   *  path itself (if @c path is a directory), or to the parent
   *  directory (if @c path is a file.)
   *  For a tree conflict, this will always be an access baton
   *  to the parent directory of the path, even if the path is
   *  a directory. */
  svn_wc_adm_access_t *access;

  /** The action being attempted on the conflicted node or property.
   *  (When @c kind is 'text', this action must be 'edit'.) */
  svn_wc_conflict_action_t action;

  /** The state of the target node or property, relative to its merge-left
   *  source, that is the reason for the conflict.
   *  (When @c kind is 'text', this reason must be 'edited'.) */
  svn_wc_conflict_reason_t reason;

  /** If this is text-conflict and involves the merging of two files
   * descended from a common ancestor, here are the paths of up to
   * four fulltext files that can be used to interactively resolve the
   * conflict.  All four files will be in repository-normal form -- LF
   * line endings and contracted keywords.  (If any of these files are
   * not available, they default to NULL.)
   *
   * On the other hand, if this is a property-conflict, then these
   * paths represent temporary files that contain the three different
   * property-values in conflict.  The fourth path (@c merged_file)
   * may or may not be NULL;  if set, it represents libsvn_wc's
   * attempt to merge the property values together.  (Remember that
   * property values are technically binary values, and thus can't
   * always be merged.)
   */
  const char *base_file;     /* common ancestor of the two files being merged */

  /** their version of the file */
  const char *their_file;

  /** my locally-edited version of the file */
  const char *my_file;

  /** merged version; may contain conflict markers */
  const char *merged_file;

  /** The operation that exposed the conflict.
   * Used only for tree conflicts.
   *
   * @since New in 1.6.
   */
  svn_wc_operation_t operation;

  /** Info on the "merge-left source" or "older" version of incoming change.
   * @since New in 1.6. */
  svn_wc_conflict_version_t *src_left_version;

  /** Info on the "merge-right source" or "their" version of incoming change.
   * @since New in 1.6. */
  svn_wc_conflict_version_t *src_right_version;

  /* Remember to adjust svn_wc__conflict_description_dup()
   * if you add new fields to this struct. */
} svn_wc_conflict_description_t;

/**
 * Allocate an #svn_wc_conflict_description_t structure in @a result_pool,
 * initialize to represent a text conflict, and return it.
 *
 * Set the @c local_abspath field of the created struct to @a local_abspath
 * (which must be an absolute path), the @c kind field to
 * #svn_wc_conflict_kind_text, the @c node_kind to @c svn_node_file,
 * the @c action to #svn_wc_conflict_action_edit, and the @c reason to
 * #svn_wc_conflict_reason_edited.
 *
 * @note It is the caller's responsibility to set the other required fields
 * (such as the four file names and @c mime_type and @c is_binary).
 *
 * @since New in 1.7.
 */
svn_wc_conflict_description2_t *
svn_wc_conflict_description_create_text2(const char *local_abspath,
                                         apr_pool_t *result_pool);


/** Similar to svn_wc_conflict_description_create_text2(), but returns
 * a #svn_wc_conflict_description_t *.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_wc_conflict_description_t *
svn_wc_conflict_description_create_text(const char *path,
                                        svn_wc_adm_access_t *adm_access,
                                        apr_pool_t *pool);

/**
 * Allocate an #svn_wc_conflict_description_t structure in @a result_pool,
 * initialize to represent a property conflict, and return it.
 *
 * Set the @c local_abspath field of the created struct to @a local_abspath
 * (which must be an absolute path), the @c kind field
 * to #svn_wc_conflict_kind_prop, the @c node_kind to @a node_kind, and
 * the @c property_name to @a property_name.
 *
 * @note: It is the caller's responsibility to set the other required fields
 * (such as the four file names and @c action and @c reason).
 *
 * @since New in 1.7.
 */
svn_wc_conflict_description2_t *
svn_wc_conflict_description_create_prop2(const char *local_abspath,
                                         svn_node_kind_t node_kind,
                                         const char *property_name,
                                         apr_pool_t *result_pool);

/** Similar to svn_wc_conflict_descriptor_create_prop(), but returns
 * a #svn_wc_conflict_description_t *.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_wc_conflict_description_t *
svn_wc_conflict_description_create_prop(const char *path,
                                        svn_wc_adm_access_t *adm_access,
                                        svn_node_kind_t node_kind,
                                        const char *property_name,
                                        apr_pool_t *pool);

/**
 * Allocate an #svn_wc_conflict_description_t structure in @a pool,
 * initialize to represent a tree conflict, and return it.
 *
 * Set the @c local_abspath field of the created struct to @a local_abspath
 * (which must be an absolute path), the @c kind field to
 * #svn_wc_conflict_kind_tree, the @c node_kind to @a node_kind, the @c
 * operation to @a operation, the @c src_left_version field to
 * @a src_left_version, and the @c src_right_version field to
 * @a src_right_version.
 *
 * @note: It is the caller's responsibility to set the other required fields
 * (such as the four file names and @c action and @c reason).
 *
 * @since New in 1.7.
 */
svn_wc_conflict_description2_t *
svn_wc_conflict_description_create_tree2(
  const char *local_abspath,
  svn_node_kind_t node_kind,
  svn_wc_operation_t operation,
  const svn_wc_conflict_version_t *src_left_version,
  const svn_wc_conflict_version_t *src_right_version,
  apr_pool_t *result_pool);


/** Similar to svn_wc_conflict_description_create_tree(), but returns
 * a #svn_wc_conflict_description_t *.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_wc_conflict_description_t *
svn_wc_conflict_description_create_tree(
  const char *path,
  svn_wc_adm_access_t *adm_access,
  svn_node_kind_t node_kind,
  svn_wc_operation_t operation,
  /* non-const */ svn_wc_conflict_version_t *src_left_version,
  /* non-const */ svn_wc_conflict_version_t *src_right_version,
  apr_pool_t *pool);


/** Return a duplicate of @a conflict, allocated in @a result_pool.
 * A deep copy of all members will be made.
 *
 * @since New in 1.7.
 */
svn_wc_conflict_description2_t *
svn_wc__conflict_description2_dup(
  const svn_wc_conflict_description2_t *conflict,
  apr_pool_t *result_pool);


/** The way in which the conflict callback chooses a course of action.
 *
 * @since New in 1.5.
 */
typedef enum svn_wc_conflict_choice_t
{
  /* Don't resolve the conflict now.  Let libsvn_wc mark the path
     'conflicted', so user can run 'svn resolved' later. */
  svn_wc_conflict_choose_postpone,

  /* If there were files to choose from, select one as a way of
     resolving the conflict here and now.  libsvn_wc will then do the
     work of "installing" the chosen file.
  */
  svn_wc_conflict_choose_base,            /* original version */
  svn_wc_conflict_choose_theirs_full,     /* incoming version */
  svn_wc_conflict_choose_mine_full,       /* own version */
  svn_wc_conflict_choose_theirs_conflict, /* incoming (for conflicted hunks) */
  svn_wc_conflict_choose_mine_conflict,   /* own (for conflicted hunks) */
  svn_wc_conflict_choose_merged           /* merged version */

} svn_wc_conflict_choice_t;


/** The final result returned by #svn_wc_conflict_resolver_func_t.
 *
 * @note Fields may be added to the end of this structure in future
 * versions.  Therefore, to preserve binary compatibility, users
 * should not directly allocate structures of this type.  Instead,
 * construct this structure using svn_wc_create_conflict_result()
 * below.
 *
 * @since New in 1.5.
 */
typedef struct svn_wc_conflict_result_t
{
  /** A choice to either delay the conflict resolution or select a
      particular file to resolve the conflict. */
  svn_wc_conflict_choice_t choice;

  /** If not NULL, this is a path to a file which contains the client's
      (or more likely, the user's) merging of the three values in
      conflict.  libsvn_wc accepts this file if (and only if) @c choice
      is set to #svn_wc_conflict_choose_merged.*/
  const char *merged_file;

  /** If true, save a backup copy of merged_file (or the original
      merged_file from the conflict description, if merged_file is
      NULL) in the user's working copy. */
  svn_boolean_t save_merged;

} svn_wc_conflict_result_t;


/**
 * Allocate an #svn_wc_conflict_result_t structure in @a pool,
 * initialize and return it.
 *
 * Set the @c choice field of the structure to @a choice, and @c
 * merged_file to @a merged_file.  Set all other fields to their @c
 * _unknown, @c NULL or invalid value, respectively. Make only a shallow
 * copy of the pointer argument @a merged_file.
 *
 * @since New in 1.5.
 */
svn_wc_conflict_result_t *
svn_wc_create_conflict_result(svn_wc_conflict_choice_t choice,
                              const char *merged_file,
                              apr_pool_t *pool);


/** A callback used in svn_client_merge3(), svn_client_update3(), and
 * svn_client_switch2() for resolving conflicts during the application
 * of a tree delta to a working copy.
 *
 * @a description describes the exact nature of the conflict, and
 * provides information to help resolve it.  @a baton is a closure
 * object; it should be provided by the implementation, and passed by
 * the caller.  When finished, the callback signals its resolution by
 * returning a structure in @a *result, which should be allocated in
 * @a result_pool.  (See #svn_wc_conflict_result_t.)  @a scratch_pool
 * should be used for any temporary allocations.
 *
 * The values #svn_wc_conflict_choose_mine_conflict and
 * #svn_wc_conflict_choose_theirs_conflict are not legal for conflicts
 * in binary files or properties.
 *
 * Implementations of this callback are free to present the conflict
 * using any user interface.  This may include simple contextual
 * conflicts in a file's text or properties, or more complex
 * 'tree'-based conflcts related to obstructed additions, deletions,
 * and edits.  The callback implementation is free to decide which
 * sorts of conflicts to handle; it's also free to decide which types
 * of conflicts are automatically resolvable and which require user
 * interaction.
 *
 * @since New in 1.7.
 */
typedef svn_error_t *(*svn_wc_conflict_resolver_func2_t)(
  svn_wc_conflict_result_t **result,
  const svn_wc_conflict_description2_t *description,
  void *baton,
  apr_pool_t *result_pool,
  apr_pool_t *scratch_pool);


/** Similar to #svn_wc_conflict_resolver_func2_t, but using
 * #svn_wc_conflict_description_t instead of
 * #svn_wc_conflict_description2_t
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
typedef svn_error_t *(*svn_wc_conflict_resolver_func_t)(
  svn_wc_conflict_result_t **result,
  const svn_wc_conflict_description_t *description,
  void *baton,
  apr_pool_t *pool);

/** @} */



/**
 * A callback vtable invoked by our diff-editors, as they receive diffs
 * from the server.  'svn diff', 'svn merge' and 'svn patch' all
 * implement their own versions of this vtable.
 *
 * Common parameters:
 *
 * @a local_dir_abspath will be the absolute path to the local directory
 * containing @a path, or @c NULL if the diff editor does not have a local
 * path. Note that @a path is a relative path, not just the basename of the
 * path.
 *
 * If @a state is non-NULL, set @a *state to the state of the item
 * after the operation has been performed.  (In practice, this is only
 * useful with merge, not diff; diff callbacks will probably set
 * @a *state to #svn_wc_notify_state_unknown, since they do not change
 * the state and therefore do not bother to know the state after the
 * operation.)  By default, @a state refers to the item's content
 * state.  Functions concerned with property state have separate
 * @a contentstate and @a propstate arguments.
 *
 * If @a tree_conflicted is non-NULL, set @a *tree_conflicted to true if
 * this operation caused a tree conflict, else to false. (Like with @a
 * state, this is only useful with merge, not diff; diff callbacks
 * should set this to false.)
 *
 * @since New in 1.7.
 */
typedef struct svn_wc_diff_callbacks4_t
{
  /**
   * A file @a path has changed.  If @a tmpfile2 is non-NULL, the
   * contents have changed and those changes can be seen by comparing
   * @a tmpfile1 and @a tmpfile2, which represent @a rev1 and @a rev2 of
   * the file, respectively.
   *
   * If known, the @c svn:mime-type value of each file is passed into
   * @a mimetype1 and @a mimetype2;  either or both of the values can
   * be NULL.  The implementor can use this information to decide if
   * (or how) to generate differences.
   *
   * @a propchanges is an array of (#svn_prop_t) structures. If it contains
   * any elements, the original list of properties is provided in
   * @a originalprops, which is a hash of #svn_string_t values, keyed on the
   * property name.
   *
   */
  svn_error_t *(*file_changed)(const char *local_dir_abspath,
                               svn_wc_notify_state_t *contentstate,
                               svn_wc_notify_state_t *propstate,
                               svn_boolean_t *tree_conflicted,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               svn_revnum_t rev1,
                               svn_revnum_t rev2,
                               const char *mimetype1,
                               const char *mimetype2,
                               const apr_array_header_t *propchanges,
                               apr_hash_t *originalprops,
                               void *diff_baton,
                               apr_pool_t *scratch_pool);

  /**
   * A file @a path was added.  The contents can be seen by comparing
   * @a tmpfile1 and @a tmpfile2, which represent @a rev1 and @a rev2
   * of the file, respectively.  (If either file is empty, the rev
   * will be 0.)
   *
   * If known, the @c svn:mime-type value of each file is passed into
   * @a mimetype1 and @a mimetype2;  either or both of the values can
   * be NULL.  The implementor can use this information to decide if
   * (or how) to generate differences.
   *
   * @a propchanges is an array of (#svn_prop_t) structures.  If it contains
   * any elements, the original list of properties is provided in
   * @a originalprops, which is a hash of #svn_string_t values, keyed on the
   * property name.
   * If @a copyfrom_path is non-@c NULL, this add has history (i.e., is a
   * copy), and the origin of the copy may be recorded as
   * @a copyfrom_path under @a copyfrom_revision.
   */
  svn_error_t *(*file_added)(const char *local_dir_abspath,
                             svn_wc_notify_state_t *contentstate,
                             svn_wc_notify_state_t *propstate,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             const char *tmpfile1,
                             const char *tmpfile2,
                             svn_revnum_t rev1,
                             svn_revnum_t rev2,
                             const char *mimetype1,
                             const char *mimetype2,
                             const char *copyfrom_path,
                             svn_revnum_t copyfrom_revision,
                             const apr_array_header_t *propchanges,
                             apr_hash_t *originalprops,
                             void *diff_baton,
                             apr_pool_t *scratch_pool);

  /**
   * A file @a path was deleted.  The [loss of] contents can be seen by
   * comparing @a tmpfile1 and @a tmpfile2.  @a originalprops provides
   * the properties of the file.
   * ### Some existing callers include WC "entry props" in @a originalprops.
   *
   * If known, the @c svn:mime-type value of each file is passed into
   * @a mimetype1 and @a mimetype2;  either or both of the values can
   * be NULL.  The implementor can use this information to decide if
   * (or how) to generate differences.
   */
  svn_error_t *(*file_deleted)(const char *local_dir_abspath,
                               svn_wc_notify_state_t *state,
                               svn_boolean_t *tree_conflicted,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               const char *mimetype1,
                               const char *mimetype2,
                               apr_hash_t *originalprops,
                               void *diff_baton,
                               apr_pool_t *scratch_pool);

  /**
   * A directory @a path was added.  @a rev is the revision that the
   * directory came from.
   *
   * If @a copyfrom_path is non-@c NULL, this add has history (i.e., is a
   * copy), and the origin of the copy may be recorded as
   * @a copyfrom_path under @a copyfrom_revision.
   */
  svn_error_t *(*dir_added)(const char *local_dir_abspath,
                            svn_wc_notify_state_t *state,
                            svn_boolean_t *tree_conflicted,
                            const char *path,
                            svn_revnum_t rev,
                            const char *copyfrom_path,
                            svn_revnum_t copyfrom_revision,
                            void *diff_baton,
                            apr_pool_t *scratch_pool);

  /**
   * A directory @a path was deleted.
   */
  svn_error_t *(*dir_deleted)(const char *local_dir_abspath,
                              svn_wc_notify_state_t *state,
                              svn_boolean_t *tree_conflicted,
                              const char *path,
                              void *diff_baton,
                              apr_pool_t *scratch_pool);

  /**
   * A list of property changes (@a propchanges) was applied to the
   * directory @a path.
   *
   * The array is a list of (#svn_prop_t) structures.
   *
   * The original list of properties is provided in @a original_props,
   * which is a hash of #svn_string_t values, keyed on the property
   * name.
   */
  svn_error_t *(*dir_props_changed)(const char *local_dir_abspath,
                                    svn_wc_notify_state_t *propstate,
                                    svn_boolean_t *tree_conflicted,
                                    const char *path,
                                    const apr_array_header_t *propchanges,
                                    apr_hash_t *original_props,
                                    void *diff_baton,
                                    apr_pool_t *scratch_pool);

  /**
   * A directory @a path has been opened.  @a rev is the revision that the
   * directory came from.
   *
   * This function is called for @a path before any of the callbacks are
   * called for a child of @a path.
   */
  svn_error_t *(*dir_opened)(const char *local_dir_abspath,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             svn_revnum_t rev,
                             void *diff_baton,
                             apr_pool_t *scratch_pool);

  /**
   * A directory @a path has been closed.
   */
  svn_error_t *(*dir_closed)(const char *local_dir_abspath,
                             svn_wc_notify_state_t *contentstate,
                             svn_wc_notify_state_t *propstate,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             void *diff_baton,
                             apr_pool_t *scratch_pool);

} svn_wc_diff_callbacks4_t;


/**
 * Similar to #svn_wc_diff_callbacks4_t, but without @a copyfrom_path and
 * @a copyfrom_revision arguments to @c file_added and @c dir_added functions.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
typedef struct svn_wc_diff_callbacks3_t
{
  /** The same as #svn_wc_diff_callbacks4_t.file_changed. */
  svn_error_t *(*file_changed)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *contentstate,
                               svn_wc_notify_state_t *propstate,
                               svn_boolean_t *tree_conflicted,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               svn_revnum_t rev1,
                               svn_revnum_t rev2,
                               const char *mimetype1,
                               const char *mimetype2,
                               const apr_array_header_t *propchanges,
                               apr_hash_t *originalprops,
                               void *diff_baton);

  /** Similar to #svn_wc_diff_callbacks4_t.file_added but without
   * @a copyfrom_path and @a copyfrom_revision arguments. */
  svn_error_t *(*file_added)(svn_wc_adm_access_t *adm_access,
                             svn_wc_notify_state_t *contentstate,
                             svn_wc_notify_state_t *propstate,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             const char *tmpfile1,
                             const char *tmpfile2,
                             svn_revnum_t rev1,
                             svn_revnum_t rev2,
                             const char *mimetype1,
                             const char *mimetype2,
                             const apr_array_header_t *propchanges,
                             apr_hash_t *originalprops,
                             void *diff_baton);

  /** The same as #svn_wc_diff_callbacks4_t.file_deleted. */
  svn_error_t *(*file_deleted)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *state,
                               svn_boolean_t *tree_conflicted,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               const char *mimetype1,
                               const char *mimetype2,
                               apr_hash_t *originalprops,
                               void *diff_baton);

  /** Similar to #svn_wc_diff_callbacks4_t.dir_added but without
   * @a copyfrom_path and @a copyfrom_revision arguments. */
  svn_error_t *(*dir_added)(svn_wc_adm_access_t *adm_access,
                            svn_wc_notify_state_t *state,
                            svn_boolean_t *tree_conflicted,
                            const char *path,
                            svn_revnum_t rev,
                            void *diff_baton);

  /** The same as #svn_wc_diff_callbacks4_t.dir_deleted. */
  svn_error_t *(*dir_deleted)(svn_wc_adm_access_t *adm_access,
                              svn_wc_notify_state_t *state,
                              svn_boolean_t *tree_conflicted,
                              const char *path,
                              void *diff_baton);

  /** The same as #svn_wc_diff_callbacks4_t.dir_props_changed. */
  svn_error_t *(*dir_props_changed)(svn_wc_adm_access_t *adm_access,
                                    svn_wc_notify_state_t *propstate,
                                    svn_boolean_t *tree_conflicted,
                                    const char *path,
                                    const apr_array_header_t *propchanges,
                                    apr_hash_t *original_props,
                                    void *diff_baton);

  /** The same as #svn_wc_diff_callbacks4_t.dir_opened. */
  svn_error_t *(*dir_opened)(svn_wc_adm_access_t *adm_access,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             svn_revnum_t rev,
                             void *diff_baton);

  /** The same as #svn_wc_diff_callbacks4_t.dir_closed. */
  svn_error_t *(*dir_closed)(svn_wc_adm_access_t *adm_access,
                             svn_wc_notify_state_t *contentstate,
                             svn_wc_notify_state_t *propstate,
                             svn_boolean_t *tree_conflicted,
                             const char *path,
                             void *diff_baton);

} svn_wc_diff_callbacks3_t;

/**
 * Similar to #svn_wc_diff_callbacks3_t, but without the @c dir_opened
 * and @c dir_closed functions, and without the @a tree_conflicted argument
 * to the functions.
 *
 * @deprecated Provided for backward compatibility with the 1.2 API.
 */
typedef struct svn_wc_diff_callbacks2_t
{
  /** The same as @c file_changed in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*file_changed)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *contentstate,
                               svn_wc_notify_state_t *propstate,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               svn_revnum_t rev1,
                               svn_revnum_t rev2,
                               const char *mimetype1,
                               const char *mimetype2,
                               const apr_array_header_t *propchanges,
                               apr_hash_t *originalprops,
                               void *diff_baton);

  /** The same as @c file_added in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*file_added)(svn_wc_adm_access_t *adm_access,
                             svn_wc_notify_state_t *contentstate,
                             svn_wc_notify_state_t *propstate,
                             const char *path,
                             const char *tmpfile1,
                             const char *tmpfile2,
                             svn_revnum_t rev1,
                             svn_revnum_t rev2,
                             const char *mimetype1,
                             const char *mimetype2,
                             const apr_array_header_t *propchanges,
                             apr_hash_t *originalprops,
                             void *diff_baton);

  /** The same as @c file_deleted in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*file_deleted)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *state,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               const char *mimetype1,
                               const char *mimetype2,
                               apr_hash_t *originalprops,
                               void *diff_baton);

  /** The same as @c dir_added in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*dir_added)(svn_wc_adm_access_t *adm_access,
                            svn_wc_notify_state_t *state,
                            const char *path,
                            svn_revnum_t rev,
                            void *diff_baton);

  /** The same as @c dir_deleted in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*dir_deleted)(svn_wc_adm_access_t *adm_access,
                              svn_wc_notify_state_t *state,
                              const char *path,
                              void *diff_baton);

  /** The same as @c dir_props_changed in #svn_wc_diff_callbacks3_t. */
  svn_error_t *(*dir_props_changed)(svn_wc_adm_access_t *adm_access,
                                    svn_wc_notify_state_t *state,
                                    const char *path,
                                    const apr_array_header_t *propchanges,
                                    apr_hash_t *original_props,
                                    void *diff_baton);

} svn_wc_diff_callbacks2_t;

/**
 * Similar to #svn_wc_diff_callbacks2_t, but with file additions/content
 * changes and property changes split into different functions.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
typedef struct svn_wc_diff_callbacks_t
{
  /** Similar to @c file_changed in #svn_wc_diff_callbacks2_t, but without
   * property change information.  @a tmpfile2 is never NULL. @a state applies
   * to the file contents. */
  svn_error_t *(*file_changed)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *state,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               svn_revnum_t rev1,
                               svn_revnum_t rev2,
                               const char *mimetype1,
                               const char *mimetype2,
                               void *diff_baton);

  /** Similar to @c file_added in #svn_wc_diff_callbacks2_t, but without
   * property change information.  @a *state applies to the file contents. */
  svn_error_t *(*file_added)(svn_wc_adm_access_t *adm_access,
                             svn_wc_notify_state_t *state,
                             const char *path,
                             const char *tmpfile1,
                             const char *tmpfile2,
                             svn_revnum_t rev1,
                             svn_revnum_t rev2,
                             const char *mimetype1,
                             const char *mimetype2,
                             void *diff_baton);

  /** Similar to @c file_deleted in #svn_wc_diff_callbacks2_t, but without
   * the properties. */
  svn_error_t *(*file_deleted)(svn_wc_adm_access_t *adm_access,
                               svn_wc_notify_state_t *state,
                               const char *path,
                               const char *tmpfile1,
                               const char *tmpfile2,
                               const char *mimetype1,
                               const char *mimetype2,
                               void *diff_baton);

  /** The same as @c dir_added in #svn_wc_diff_callbacks2_t. */
  svn_error_t *(*dir_added)(svn_wc_adm_access_t *adm_access,
                            svn_wc_notify_state_t *state,
                            const char *path,
                            svn_revnum_t rev,
                            void *diff_baton);

  /** The same as @c dir_deleted in #svn_wc_diff_callbacks2_t. */
  svn_error_t *(*dir_deleted)(svn_wc_adm_access_t *adm_access,
                              svn_wc_notify_state_t *state,
                              const char *path,
                              void *diff_baton);

  /** Similar to @c dir_props_changed in #svn_wc_diff_callbacks2_t, but this
   * function is called for files as well as directories. */
  svn_error_t *(*props_changed)(svn_wc_adm_access_t *adm_access,
                                svn_wc_notify_state_t *state,
                                const char *path,
                                const apr_array_header_t *propchanges,
                                apr_hash_t *original_props,
                                void *diff_baton);

} svn_wc_diff_callbacks_t;


/* Asking questions about a working copy. */

/** Set @a *wc_format to @a local_abspath's working copy format version
 * number if @a local_abspath is a valid working copy directory, else set it
 * to 0.
 *
 * Return error @c APR_ENOENT if @a local_abspath does not exist at all.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_check_wc2(int *wc_format,
                 svn_wc_context_t *wc_ctx,
                 const char *local_abspath,
                 apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_check_wc2(), but with a relative path and no supplied
 * working copy context.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_check_wc(const char *path,
                int *wc_format,
                apr_pool_t *pool);


/** As a replacement for this functionality, @see svn_mime_type_is_binary
 * and #SVN_PROP_MIME_TYPE.
 *
 * Set @a *has_binary_prop to @c TRUE iff @a path has been marked
 * with a property indicating that it is non-text (in other words, binary).
 * @a adm_access is an access baton set that contains @a path.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_has_binary_prop(svn_boolean_t *has_binary_prop,
                       const char *path,
                       svn_wc_adm_access_t *adm_access,
                       apr_pool_t *pool);


/* Detecting modification. */

/** Set @a *modified_p to non-zero if @a local_abspath's text is modified
 * with regard to the base revision, else set @a *modified_p to zero.
 * @a local_abspath is the absolute path to the file.
 *
 * If @a force_comparison is @c TRUE, this function will not allow
 * early return mechanisms that avoid actual content comparison.
 * Instead, if there is a text base, a full byte-by-byte comparison
 * will be done, and the entry checksum verified as well.  (This means
 * that if the text base is much longer than the working file, every
 * byte of the text base will still be examined.)
 *
 * If @a local_abspath does not exist, consider it unmodified.  If it exists
 * but is not under revision control (not even scheduled for
 * addition), return the error #SVN_ERR_ENTRY_NOT_FOUND.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_text_modified_p2(svn_boolean_t *modified_p,
                        svn_wc_context_t *wc_ctx,
                        const char *local_abspath,
                        svn_boolean_t force_comparison,
                        apr_pool_t *scratch_pool);

/** Similar to svn_wc_text_modified_p2(), but with a relative path and
 * adm_access baton?
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_text_modified_p(svn_boolean_t *modified_p,
                       const char *filename,
                       svn_boolean_t force_comparison,
                       svn_wc_adm_access_t *adm_access,
                       apr_pool_t *pool);


/** Set @a *modified_p to non-zero if @a path's properties are modified
 * with regard to the base revision, else set @a modified_p to zero.
 * @a adm_access must be an access baton for @a path.
 *
 * If you want to use this with a post-wc-ng working copy, just call
 * svn_wc_get_prop_diffs2() and examine the output.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_props_modified_p(svn_boolean_t *modified_p,
                        const char *path,
                        svn_wc_adm_access_t *adm_access,
                        apr_pool_t *pool);




/** Administrative subdir.
 *
 * Ideally, this would be completely private to wc internals (in fact,
 * it used to be that adm_subdir() in adm_files.c was the only function
 * who knew the adm subdir's name).  However, import wants to protect
 * against importing administrative subdirs, so now the name is a
 * matter of public record.
 *
 * @deprecated Provided for backward compatibility with the 1.2 API.
 */
#define SVN_WC_ADM_DIR_NAME   ".svn"



/* Entries and status. */

/** The schedule states an entry can be in. */
typedef enum svn_wc_schedule_t
{
  /** Nothing special here */
  svn_wc_schedule_normal,

  /** Slated for addition */
  svn_wc_schedule_add,

  /** Slated for deletion */
  svn_wc_schedule_delete,

  /** Slated for replacement (delete + add) */
  svn_wc_schedule_replace

} svn_wc_schedule_t;


/**
 * Values for the working_size field in svn_wc_entry_t
 * when it isn't set to the actual size value of the unchanged
 * working file.
 *
 * @defgroup svn_wc_entry_working_size_constants Working size constants
 *
 * @{
 */

/** The value of the working size is unknown (hasn't been
 *  calculated and stored in the past for whatever reason).
 *
 * @since New in 1.5
 */
#define SVN_WC_ENTRY_WORKING_SIZE_UNKNOWN (-1)

/** @} */

/** A working copy entry -- that is, revision control information about
 * one versioned entity.
 */
typedef struct svn_wc_entry_t
{
  /* IMPORTANT: If you extend this structure, add new fields to the end. */

  /* General Attributes */

  /** entry's name */
  const char *name;

  /** base revision */
  svn_revnum_t revision;

  /** url in repository */
  const char *url;

  /** canonical repository URL or NULL if not known */
  const char *repos;

  /** repository uuid */
  const char *uuid;

  /** node kind (file, dir, ...) */
  svn_node_kind_t kind;

  /* State information */

  /** scheduling (add, delete, replace ...) */
  svn_wc_schedule_t schedule;

  /** in a copied state (possibly because the entry is a child of a
   *  path that is #svn_wc_schedule_add or #svn_wc_schedule_replace,
   *  when the entry itself is #svn_wc_schedule_normal).
   *  COPIED is true for nodes under a directory that was copied, but
   *  COPYFROM_URL is null there. They are both set for the root
   *  destination of the copy.
   */
  svn_boolean_t copied;

  /** The directory containing this entry had a versioned child of this
   * name, but this entry represents a different revision or a switched
   * path at which no item exists in the repository. This typically
   * arises from committing or updating to a deletion of this entry
   * without committing or updating the parent directory.
   *
   * The schedule can be 'normal' or 'add'. */
  svn_boolean_t deleted;

  /** absent -- we know an entry of this name exists, but that's all
      (usually this happens because of authz restrictions)  */
  svn_boolean_t absent;

  /** for THIS_DIR entry, implies whole entries file is incomplete */
  svn_boolean_t incomplete;

  /** copyfrom location */
  const char *copyfrom_url;

  /** copyfrom revision */
  svn_revnum_t copyfrom_rev;

  /** old version of conflicted file. A file basename, relative to the
   * user's directory that the THIS_DIR entry refers to. */
  const char *conflict_old;

  /** new version of conflicted file. A file basename, relative to the
   * user's directory that the THIS_DIR entry refers to. */
  const char *conflict_new;

  /** working version of conflicted file. A file basename, relative to the
   * user's directory that the THIS_DIR entry refers to. */
  const char *conflict_wrk;

  /** property reject file. A file basename, relative to the user's
   * directory that the THIS_DIR entry refers to. */
  const char *prejfile;

  /** last up-to-date time for text contents (0 means no information available)
   */
  apr_time_t text_time;

  /** last up-to-date time for properties (0 means no information available)
   *
   * @deprecated This value will always be 0 in version 1.4 and later.
   */
  apr_time_t prop_time;

  /** Hex MD5 checksum for the untranslated text base file,
   * can be @c NULL for backwards compatibility.
   */
  const char *checksum;

  /* "Entry props" */

  /** last revision this was changed */
  svn_revnum_t cmt_rev;

  /** last date this was changed */
  apr_time_t cmt_date;

  /** last commit author of this item */
  const char *cmt_author;

  /** lock token or NULL if path not locked in this WC
   * @since New in 1.2.
   */
  const char *lock_token;

  /** lock owner, or NULL if not locked in this WC
   * @since New in 1.2.
   */
  const char *lock_owner;

  /** lock comment or NULL if not locked in this WC or no comment
   * @since New in 1.2.
   */
  const char *lock_comment;

  /** Lock creation date or 0 if not locked in this WC
   * @since New in 1.2.
   */
  apr_time_t lock_creation_date;

  /** Whether this entry has any working properties.
   * False if this information is not stored in the entry.
   *
   * @since New in 1.4. */
  svn_boolean_t has_props;

  /** Whether this entry has property modifications.
   *
   * @note For working copies in older formats, this flag is not valid.
   *
   * @see svn_wc_props_modified_p().
   *
   * @since New in 1.4. */
  svn_boolean_t has_prop_mods;

  /** A space-separated list of all properties whose presence/absence is cached
   * in this entry.
   *
   * @see @c present_props.
   *
   * @since New in 1.4.
   * @deprecated This value will always be "" in version 1.7 and later. */
  const char *cachable_props;

  /** Cached property existence for this entry.
   * This is a space-separated list of property names.  If a name exists in
   * @c cachable_props but not in this list, this entry does not have that
   * property.  If a name exists in both lists, the property is present on this
   * entry.
   *
   * @since New in 1.4.
   * @deprecated This value will always be "" in version 1.7 and later. */
  const char *present_props;

  /** which changelist this item is part of, or NULL if not part of any.
   * @since New in 1.5.
   */
  const char *changelist;

  /** Size of the file after being translated into local
   * representation, or #SVN_WC_ENTRY_WORKING_SIZE_UNKNOWN if
   * unknown.
   *
   * @since New in 1.5.
   */
  apr_off_t working_size;

  /** Whether a local copy of this entry should be kept in the working copy
   * after a deletion has been committed,  Only valid for the this-dir entry
   * when it is scheduled for deletion.
   *
   * @since New in 1.5. */
  svn_boolean_t keep_local;

  /** The depth of this entry.
   *
   * ### It's a bit annoying that we only use this on this_dir
   * ### entries, yet it will exist (with value svn_depth_infinity) on
   * ### all entries.  Maybe some future extensibility would make this
   * ### field meaningful on entries besides this_dir.
   *
   * @since New in 1.5. */
  svn_depth_t depth;

  /** Serialized data for all of the tree conflicts detected in this_dir.
   *
   * @since New in 1.6. */
  const char *tree_conflict_data;

  /** The entry is a intra-repository file external and this is the
   * repository root relative path to the file specified in the
   * externals definition, otherwise NULL if the entry is not a file
   * external.
   *
   * @since New in 1.6. */
  const char *file_external_path;

  /** The entry is a intra-repository file external and this is the
   * peg revision number specified in the externals definition.  This
   * field is only valid when the file_external_path field is
   * non-NULL.  The only permissible values are
   * svn_opt_revision_unspecified if the entry is not an external,
   * svn_opt_revision_head if the external revision is unspecified or
   * specified with -r HEAD or svn_opt_revision_number for a specific
   * revision number.
   *
   * @since New in 1.6. */
  svn_opt_revision_t file_external_peg_rev;

  /** The entry is an intra-repository file external and this is the
   * operative revision number specified in the externals definition.
   * This field is only valid when the file_external_path field is
   * non-NULL.  The only permissible values are
   * svn_opt_revision_unspecified if the entry is not an external,
   * svn_opt_revision_head if the external revision is unspecified or
   * specified with -r HEAD or svn_opt_revision_number for a specific
   * revision number.
   *
   * @since New in 1.6. */
  svn_opt_revision_t file_external_rev;

  /* IMPORTANT: If you extend this structure, check the following functions in
   * subversion/libsvn_wc/entries.c, to see if you need to extend them as well.
   *
   * svn_wc__atts_to_entry()
   * svn_wc_entry_dup()
   * alloc_entry()
   * read_entry()
   * write_entry()
   * fold_entry()
   */
} svn_wc_entry_t;


/** How an entries file's owner dir is named in the entries file. */
#define SVN_WC_ENTRY_THIS_DIR  ""


/** Set @a *entry to an entry for @a path, allocated in the access baton pool.
 * If @a show_hidden is TRUE, return the entry even if it's in 'excluded',
 * 'deleted' or 'absent' state. Excluded entries are those with their depth
 * set to #svn_depth_exclude. If @a path is not under revision control, or
 * if entry is hidden, not scheduled for re-addition, and @a show_hidden is @c
 * FALSE, then set @a *entry to @c NULL.
 *
 * @a *entry should not be modified, since doing so modifies the entries
 * cache in @a adm_access without changing the entries file on disk.
 *
 * If @a path is not a directory then @a adm_access must be an access baton
 * for the parent directory of @a path.  To avoid needing to know whether
 * @a path is a directory or not, if @a path is a directory @a adm_access
 * can still be an access baton for the parent of @a path so long as the
 * access baton for @a path itself is in the same access baton set.
 *
 * @a path can be relative or absolute but must share the same base used
 * to open @a adm_access.
 *
 * Note that it is possible for @a path to be absent from disk but still
 * under revision control; and conversely, it is possible for @a path to
 * be present, but not under revision control.
 *
 * Use @a pool only for local processing.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_entry(const svn_wc_entry_t **entry,
             const char *path,
             svn_wc_adm_access_t *adm_access,
             svn_boolean_t show_hidden,
             apr_pool_t *pool);


/** Parse the `entries' file for @a adm_access and return a hash @a entries,
 * whose keys are (<tt>const char *</tt>) entry names and values are
 * (<tt>svn_wc_entry_t *</tt>).  The hash @a entries, and its keys and
 * values, are allocated from the pool used to open the @a adm_access
 * baton (that's how the entries caching works).  @a pool is used for
 * transient allocations.
 *
 * Entries that are in a 'excluded', 'deleted' or 'absent' state (and not
 * scheduled for re-addition) are not returned in the hash, unless
 * @a show_hidden is TRUE. Excluded entries are those with their depth set to
 * #svn_depth_exclude.
 *
 * @par Important:
 * The @a entries hash is the entries cache in @a adm_access
 * and so usually the hash itself, the keys and the values should be treated
 * as read-only.  If any of these are modified then it is the caller's
 * responsibility to ensure that the entries file on disk is updated.  Treat
 * the hash values as type (<tt>const svn_wc_entry_t *</tt>) if you wish to
 * avoid accidental modification.  Modifying the schedule member is a
 * particularly bad idea, as the entries writing process relies on having
 * access to the original schedule.  Use a duplicate entry to modify the
 * schedule.
 *
 * @par Important:
 * Only the entry structures representing files and
 * #SVN_WC_ENTRY_THIS_DIR contain complete information.  The entry
 * structures representing subdirs have only the `kind' and `state'
 * fields filled in.  If you want info on a subdir, you must use this
 * routine to open its @a path and read the #SVN_WC_ENTRY_THIS_DIR
 * structure, or call svn_wc_entry() on its @a path.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_entries_read(apr_hash_t **entries,
                    svn_wc_adm_access_t *adm_access,
                    svn_boolean_t show_hidden,
                    apr_pool_t *pool);


/** Return a duplicate of @a entry, allocated in @a pool.  No part of the new
 * entry will be shared with @a entry.
 */
svn_wc_entry_t *
svn_wc_entry_dup(const svn_wc_entry_t *entry,
                 apr_pool_t *pool);


/** Given @a local_abspath in a dir under version control, decide if it is
 * in a state of conflict; return the answers in @a *text_conflicted_p, @a
 * *prop_conflicted_p, and @a *tree_conflicted_p.  If one or two of the
 * answers are uninteresting, simply pass @c NULL pointers for those.
 *
 * If @a path is unversioned or does not exist, return
 * #SVN_ERR_WC_PATH_NOT_FOUND.
 *
 * @a adm_access is the admin access baton of the parent directory.
 *
 * If the @a path has corresponding text conflict files (with suffix .mine,
 * .theirs, etc.) that cannot be found, assume that the text conflict has
 * been resolved by the user and return @c FALSE in @a *text_conflicted_p.
 *
 * Similarly, if a property conflicts file (.prej suffix) is said to exist,
 * but it cannot be found, assume that the property conflicts have been
 * resolved by the user and return @c FALSE in @a *prop_conflicted_p.
 *
 * @a *tree_conflicted_p can't be auto-resolved in this fashion.  An
 * explicit `resolved' is needed.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_conflicted_p3(svn_boolean_t *text_conflicted_p,
                     svn_boolean_t *prop_conflicted_p,
                     svn_boolean_t *tree_conflicted_p,
                     svn_wc_context_t *wc_ctx,
                     const char *local_abspath,
                     apr_pool_t *scratch_pool);

/** Similar to svn_wc_conflicted_p3(), but with a path/adm_access parameter
 * pair in place of a wc_ctx/local_abspath pair.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_conflicted_p2(svn_boolean_t *text_conflicted_p,
                     svn_boolean_t *prop_conflicted_p,
                     svn_boolean_t *tree_conflicted_p,
                     const char *path,
                     svn_wc_adm_access_t *adm_access,
                     apr_pool_t *pool);

/** Given a @a dir_path under version control, decide if one of its entries
 * (@a entry) is in a state of conflict; return the answers in @a
 * text_conflicted_p and @a prop_conflicted_p. These pointers must not be
 * null.
 *
 * If the @a entry mentions that text conflict files (with suffix .mine,
 * .theirs, etc.) exist, but they cannot be found, assume the text conflict
 * has been resolved by the user and return FALSE in @a *text_conflicted_p.
 *
 * Similarly, if the @a entry mentions that a property conflicts file (.prej
 * suffix) exists, but it cannot be found, assume the property conflicts
 * have been resolved by the user and return FALSE in @a *prop_conflicted_p.
 *
 * The @a entry is not updated.
 *
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_conflicted_p(svn_boolean_t *text_conflicted_p,
                    svn_boolean_t *prop_conflicted_p,
                    const char *dir_path,
                    const svn_wc_entry_t *entry,
                    apr_pool_t *pool);

/** Set @a *url and @a *rev to the ancestor URL and revision for
 * @a local_abspath, allocating in @a result_pool.  Any temporary
 * allocations are performed using @a scratch_pool.
 *
 * If @a url or @a rev is NULL, then ignore it (just don't return the
 * corresponding information).
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_ancestry2(const char **url,
                     svn_revnum_t *rev,
                     svn_wc_context_t *wc_ctx,
                     const char *local_abspath,
                     apr_pool_t *result_pool,
                     apr_pool_t *scratch_pool);

/* Similar to svn_wc_get_ancestry2(), but using an adm_access baton / relative
 * path parameter pair.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_ancestry(char **url,
                    svn_revnum_t *rev,
                    const char *path,
                    svn_wc_adm_access_t *adm_access,
                    apr_pool_t *pool);


/** A callback vtable invoked by the generic entry-walker function.
 * @since New in 1.5.
 */
typedef struct svn_wc_entry_callbacks2_t
{
  /** An @a entry was found at @a path. */
  svn_error_t *(*found_entry)(const char *path,
                              const svn_wc_entry_t *entry,
                              void *walk_baton,
                              apr_pool_t *pool);

  /** Handle the error @a err encountered while processing @a path.
   * Wrap or squelch @a err as desired, and return an #svn_error_t
   * *, or #SVN_NO_ERROR.
   */
  svn_error_t *(*handle_error)(const char *path,
                               svn_error_t *err,
                               void *walk_baton,
                               apr_pool_t *pool);

} svn_wc_entry_callbacks2_t;

/** @deprecated Provided for backward compatibility with the 1.4 API. */
typedef struct svn_wc_entry_callbacks_t
{
  /** An @a entry was found at @a path. */
  svn_error_t *(*found_entry)(const char *path,
                              const svn_wc_entry_t *entry,
                              void *walk_baton,
                              apr_pool_t *pool);

} svn_wc_entry_callbacks_t;

/**
 * A generic entry-walker.
 *
 * Do a potentially recursive depth-first entry-walk beginning on
 * @a path, which can be a file or dir.  Call callbacks in
 * @a walk_callbacks, passing @a walk_baton to each.  Use @a pool for
 * looping, recursion, and to allocate all entries returned.
 * @a adm_access must be an access baton for @a path.  The pool
 * passed to @a walk_callbacks is a temporary subpool of @a pool.
 *
 * If @a depth is #svn_depth_empty, invoke the callbacks on @a path
 * and return without recursing further.  If #svn_depth_files, do
 * the same and invoke the callbacks on file children (if any) of
 * @a path, then return.  If #svn_depth_immediates, do the preceding
 * but also invoke callbacks on immediate subdirectories, then return.
 * If #svn_depth_infinity, recurse fully starting from @a path.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton to determine
 * if the client has cancelled the operation.
 *
 * Like our other entries interfaces, entries that are in a 'excluded',
 * 'deleted' or 'absent' state (and not scheduled for re-addition) are not
 * discovered, unless @a show_hidden is TRUE. Excluded entries are those with
 * their depth set to #svn_depth_exclude.
 *
 * When a new directory is entered, #SVN_WC_ENTRY_THIS_DIR will always
 * be returned first.
 *
 * @note Callers should be aware that each directory will be
 * returned *twice*:  first as an entry within its parent, and
 * subsequently as the '.' entry within itself.  The two calls can be
 * distinguished by looking for #SVN_WC_ENTRY_THIS_DIR in the 'name'
 * field of the entry.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_walk_entries3(const char *path,
                     svn_wc_adm_access_t *adm_access,
                     const svn_wc_entry_callbacks2_t *walk_callbacks,
                     void *walk_baton,
                     svn_depth_t depth,
                     svn_boolean_t show_hidden,
                     svn_cancel_func_t cancel_func,
                     void *cancel_baton,
                     apr_pool_t *pool);

/**
 * Similar to svn_wc_walk_entries3(), but without cancellation support
 * or error handling from @a walk_callbacks, and with @a depth always
 * set to #svn_depth_infinity.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_walk_entries2(const char *path,
                     svn_wc_adm_access_t *adm_access,
                     const svn_wc_entry_callbacks_t *walk_callbacks,
                     void *walk_baton,
                     svn_boolean_t show_hidden,
                     svn_cancel_func_t cancel_func,
                     void *cancel_baton,
                     apr_pool_t *pool);

/**
 * Similar to svn_wc_walk_entries2(), but without cancellation support.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_walk_entries(const char *path,
                    svn_wc_adm_access_t *adm_access,
                    const svn_wc_entry_callbacks_t *walk_callbacks,
                    void *walk_baton,
                    svn_boolean_t show_hidden,
                    apr_pool_t *pool);


/** Mark missing @a path as 'deleted' in its @a parent's list of
 * entries.  @ path should be a directory that is both deleted (via
 * svn_wc_delete4) and removed (via a system call).  This function
 * should only be called during post-commit processing following a
 * successful commit editor drive.
 *
 * Return #SVN_ERR_WC_PATH_FOUND if @a path isn't actually missing.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_mark_missing_deleted(const char *path,
                            svn_wc_adm_access_t *parent,
                            apr_pool_t *pool);


/** Ensure that an administrative area exists for @a local_abspath, so
 * that @a local_abspath is a working copy subdir based on @a url at @a
 * revision, with depth @a depth, and with repository UUID @a repos_uuid
 * and repository root URL @a repos_root_url.
 *
 * @a depth must be a definite depth, it cannot be #svn_depth_unknown.
 * @a repos_uuid and @a repos_root_url MUST NOT be @c NULL, and
 * @a repos_root_url must be a prefix of @a url.
 *
 * If the administrative area does not exist, then create it and
 * initialize it to an unlocked state.
 *
 * If the administrative area already exists then the given @a url
 * must match the URL in the administrative area and the given
 * @a revision must match the BASE of the working copy dir unless
 * the admin directory is scheduled for deletion or the
 * #SVN_ERR_WC_OBSTRUCTED_UPDATE error will be returned.
 *
 * Do not ensure existence of @a local_abspath itself; if @a local_abspath
 * does not exist, return error.
 *
 * Use @a scratch_pool for temporary allocations.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_ensure_adm4(svn_wc_context_t *wc_ctx,
                   const char *local_abspath,
                   const char *url,
                   const char *repos_root_url,
                   const char *repos_uuid,
                   svn_revnum_t revision,
                   svn_depth_t depth,
                   apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_ensure_adm4(), but without the wc context parameter.
 *
 * @note the @a uuid and @a repos parameters were documented as allowing
 * @c NULL to be passed. Beginning with 1.7, this will return an error,
 * contrary to prior documented behavior.
 *
 * @since New in 1.5.
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_ensure_adm3(const char *path,
                   const char *uuid,
                   const char *url,
                   const char *repos,
                   svn_revnum_t revision,
                   svn_depth_t depth,
                   apr_pool_t *pool);


/**
 * Similar to svn_wc_ensure_adm3(), but with @a depth set to
 * #svn_depth_infinity.
 *
 * See the note on svn_wc_ensure_adm3() regarding the @a repos and @a uuid
 * parameters.
 *
 * @since New in 1.3.
 * @deprecated Provided for backwards compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_ensure_adm2(const char *path,
                   const char *uuid,
                   const char *url,
                   const char *repos,
                   svn_revnum_t revision,
                   apr_pool_t *pool);


/**
 * Similar to svn_wc_ensure_adm2(), but with @a repos set to @c NULL.
 *
 * @note as of 1.7, this function always returns #SVN_ERR_BAD_URL since
 * the @a repos parameter may not be @c NULL.
 *
 * @deprecated Provided for backwards compatibility with the 1.2 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_ensure_adm(const char *path,
                  const char *uuid,
                  const char *url,
                  svn_revnum_t revision,
                  apr_pool_t *pool);


/** Set the repository root URL of @a path to @a repos, if possible.
 *
 * Before Subversion 1.7 there could be working copy directories that
 * didn't have a stored repository root in some specific circumstances.
 * This function allowed setting this root later.
 *
 * Since Subversion 1.7 this function just returns #SVN_NO_ERROR.
 *
 * @since New in 1.3.
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_maybe_set_repos_root(svn_wc_adm_access_t *adm_access,
                            const char *path,
                            const char *repos,
                            apr_pool_t *pool);


/**
 * @defgroup svn_wc_status Working copy status.
 * @{
 *
 * We have two functions for getting working copy status: one function
 * for getting the status of exactly one thing, and another for
 * getting the statuses of (potentially) multiple things.
 *
 * The concept of depth, as explained in the documentation for
 * svn_depth_t, may be useful in understanding this.  Suppose we're
 * getting the status of directory D:
 *
 * To offer all three levels, we could have one unified function,
 * taking a `depth' parameter.  Unfortunately, because this function
 * would have to handle multiple return values as well as the single
 * return value case, getting the status of just one entity would
 * become cumbersome: you'd have to roll through a hash to find one
 * lone status.
 *
 * So we have svn_wc_status() for depth-empty (just D itself), and
 * svn_wc_get_status_editor() for depth-immediates and depth-infinity,
 * since the latter two involve multiple return values.
 *
 * @note The status structures may contain a @c NULL ->entry field.
 * This indicates an item that is not versioned in the working copy.
 */

/** The type of status for the working copy. */
enum svn_wc_status_kind
{
    /** does not exist */
    svn_wc_status_none = 1,

    /** is not a versioned thing in this wc */
    svn_wc_status_unversioned,

    /** exists, but uninteresting */
    svn_wc_status_normal,

    /** is scheduled for addition */
    svn_wc_status_added,

    /** under v.c., but is missing */
    svn_wc_status_missing,

    /** scheduled for deletion */
    svn_wc_status_deleted,

    /** was deleted and then re-added */
    svn_wc_status_replaced,

    /** text or props have been modified */
    svn_wc_status_modified,

    /** local mods received repos mods */
    svn_wc_status_merged,

    /** local mods received conflicting repos mods */
    svn_wc_status_conflicted,

    /** is unversioned but configured to be ignored */
    svn_wc_status_ignored,

    /** an unversioned resource is in the way of the versioned resource */
    svn_wc_status_obstructed,

    /** an unversioned directory path populated by an svn:externals
        property; this status is not used for file externals */
    svn_wc_status_external,

    /** a directory doesn't contain a complete entries list */
    svn_wc_status_incomplete
};

/**
 * Structure for holding the "status" of a working copy item.
 *
 * The item's entry data is in @a entry, augmented and possibly shadowed
 * by the other fields.  @a entry is @c NULL if this item is not under
 * version control.
 *
 * @note Fields may be added to the end of this structure in future
 * versions.  Therefore, to preserve binary compatibility, users
 * should not directly allocate structures of this type.
 *
 * @since New in 1.2.
 */
typedef struct svn_wc_status2_t
{
  /** Can be @c NULL if not under version control. */
  const svn_wc_entry_t *entry;

  /** The status of the entry itself, including its text if it is a file. */
  enum svn_wc_status_kind text_status;

  /** The status of the entry's properties. */
  enum svn_wc_status_kind prop_status;

  /** a directory can be 'locked' if a working copy update was interrupted. */
  svn_boolean_t locked;

  /** a file or directory can be 'copied' if it's scheduled for
   * addition-with-history (or part of a subtree that is scheduled as such.).
   */
  svn_boolean_t copied;

  /** a file or directory can be 'switched' if the switch command has been
   * used.  If this is TRUE, then file_external will be FALSE.
   */
  svn_boolean_t switched;

  /** The entry's text status in the repository. */
  enum svn_wc_status_kind repos_text_status;

  /** The entry's property status in the repository. */
  enum svn_wc_status_kind repos_prop_status;

  /** The entry's lock in the repository, if any. */
  svn_lock_t *repos_lock;

  /** Set to the URI (actual or expected) of the item.
   * @since New in 1.3
   */
  const char *url;

  /**
   * @defgroup svn_wc_status_ood WC out-of-date info from the repository
   * @{
   *
   * When the working copy item is out-of-date compared to the
   * repository, the following fields represent the state of the
   * youngest revision of the item in the repository.  If the working
   * copy is not out of date, the fields are initialized as described
   * below.
   */

  /** Set to the youngest committed revision, or #SVN_INVALID_REVNUM
   * if not out of date.
   * @since New in 1.3
   */
  svn_revnum_t ood_last_cmt_rev;

  /** Set to the most recent commit date, or @c 0 if not out of date.
   * @since New in 1.3
   */
  apr_time_t ood_last_cmt_date;

  /** Set to the node kind of the youngest commit, or #svn_node_none
   * if not out of date.
   * @since New in 1.3
   */
  svn_node_kind_t ood_kind;

  /** Set to the user name of the youngest commit, or @c NULL if not
   * out of date or non-existent.  Because a non-existent @c
   * svn:author property has the same behavior as an out-of-date
   * working copy, examine @c ood_last_cmt_rev to determine whether
   * the working copy is out of date.
   * @since New in 1.3
   */
  const char *ood_last_cmt_author;

  /** @} */

  /** Non-NULL if the entry is the victim of a tree conflict.
   * @since New in 1.6
   */
  svn_wc_conflict_description_t *tree_conflict;

  /** If the item is a file that was added to the working copy with an
   * svn:externals; if file_external is TRUE, then switched is always
   * FALSE.
   * @since New in 1.6
   */
  svn_boolean_t file_external;

  /** The actual status of the text compared to the pristine base of the
   * file. This value isn't masked by other working copy statuses.
   * @c pristine_text_status is #svn_wc_status_none if this value was
   * not calculated during the status walk.
   * @since New in 1.6
   */
  enum svn_wc_status_kind pristine_text_status;

  /** The actual status of the properties compared to the pristine base of
   * the node. This value isn't masked by other working copy statuses.
   * @c pristine_prop_status is #svn_wc_status_none if this value was
   * not calculated during the status walk.
   * @since New in 1.6
   */
  enum svn_wc_status_kind pristine_prop_status;

  /* NOTE! Please update svn_wc_dup_status2() when adding new fields here. */
} svn_wc_status2_t;



/**
 * Same as #svn_wc_status2_t, but without the #svn_lock_t 'repos_lock' field.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
typedef struct svn_wc_status_t
{
  /** Can be @c NULL if not under version control. */
  const svn_wc_entry_t *entry;

  /** The status of the entries text. */
  enum svn_wc_status_kind text_status;

  /** The status of the entries properties. */
  enum svn_wc_status_kind prop_status;

  /** a directory can be 'locked' if a working copy update was interrupted. */
  svn_boolean_t locked;

  /** a file or directory can be 'copied' if it's scheduled for
   * addition-with-history (or part of a subtree that is scheduled as such.).
   */
  svn_boolean_t copied;

  /** a file or directory can be 'switched' if the switch command has been
   * used.
   */
  svn_boolean_t switched;

  /** The entry's text status in the repository. */
  enum svn_wc_status_kind repos_text_status;

  /** The entry's property status in the repository. */
  enum svn_wc_status_kind repos_prop_status;

} svn_wc_status_t;



/**
 * Return a deep copy of the @a orig_stat status structure, allocated
 * in @a pool.
 *
 * @since New in 1.2.
 */
svn_wc_status2_t *
svn_wc_dup_status2(const svn_wc_status2_t *orig_stat,
                   apr_pool_t *pool);


/**
 * Same as svn_wc_dup_status2(), but for older svn_wc_status_t structures.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_wc_status_t *
svn_wc_dup_status(const svn_wc_status_t *orig_stat,
                  apr_pool_t *pool);


/**
 * Fill @a *status for @a local_abspath, allocating in @a result_pool.
 * Use @a scratch_pool for temporary allocations.
 *
 * Here are some things to note about the returned structure.  A quick
 * examination of the @c status->text_status after a successful return of
 * this function can reveal the following things:
 *
 *    - #svn_wc_status_none : @a local_abspath is not versioned, and is
 *                            either not present on disk, or is ignored
 *                            by svn's default ignore regular expressions
 *                            or the svn:ignore property setting for
 *                            @a local_abspath's parent directory.
 *
 *    - #svn_wc_status_missing : @a local_abspath is versioned, but is
 *                               missing from the working copy.
 *
 *    - #svn_wc_status_unversioned : @a local_abspath is not versioned,
 *                                   but is present on disk and not being
 *                                   ignored (see above).
 *
 * The other available results for the @c text_status field are more
 * straightforward in their meanings.  See the comments on the
 * #svn_wc_status_kind structure for some hints.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_status3(svn_wc_status2_t **status,
               svn_wc_context_t *wc_ctx,
               const char *local_abspath,
               apr_pool_t *result_pool,
               apr_pool_t *scratch_pool);

/** Similar to svn_wc_status3(), but with a adm_access baton and absolute
 * path.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_status2(svn_wc_status2_t **status,
               const char *path,
               svn_wc_adm_access_t *adm_access,
               apr_pool_t *pool);


/**
 *  Same as svn_wc_status2(), but for older svn_wc_status_t structures.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_status(svn_wc_status_t **status,
              const char *path,
              svn_wc_adm_access_t *adm_access,
              apr_pool_t *pool);




/**
 * A callback for reporting a @a status about @a local_abspath.
 *
 * @a baton is a closure object; it should be provided by the
 * implementation, and passed by the caller.
 *
 * @a scratch_pool will be cleared between invocations to the callback.
 *
 * ### we might be revamping the status infrastructure, and this callback
 * ### could totally disappear by the end of 1.7 development. however, we
 * ### need to mark the STATUS parameter as "const" so that it is easier
 * ### to reason about who/what can modify those structures.
 *
 * @since New in 1.7.
 */
typedef svn_error_t *(*svn_wc_status_func4_t)(void *baton,
                                              const char *local_abspath,
                                              const svn_wc_status2_t *status,
                                              apr_pool_t *scratch_pool);

/**
 * Same as svn_wc_status_func4_t, but with a non-const status and a relative
 * path.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
typedef svn_error_t *(*svn_wc_status_func3_t)(void *baton,
                                              const char *path,
                                              svn_wc_status2_t *status,
                                              apr_pool_t *pool);

/**
 * Same as svn_wc_status_func3_t, but without a provided pool or
 * the ability to propagate errors.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
typedef void (*svn_wc_status_func2_t)(void *baton,
                                      const char *path,
                                      svn_wc_status2_t *status);

/**
 *  Same as svn_wc_status_func2_t, but for older svn_wc_status_t structures.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
typedef void (*svn_wc_status_func_t)(void *baton,
                                     const char *path,
                                     svn_wc_status_t *status);

/**
 * Walk the working copy status of @a local_abspath using @a wc_ctx, by
 * creating #svn_wc_status2_t structures and sending these through
 * @a status_func / @a status_baton.
 *
 *  * Assuming the target is a directory, then:
 *
 *   - If @a get_all is FALSE, then only locally-modified entries will be
 *     returned.  If TRUE, then all entries will be returned.
 *
 *   - If @a depth is #svn_depth_empty, a status structure will
 *     be returned for the target only; if #svn_depth_files, for the
 *     target and its immediate file children; if
 *     #svn_depth_immediates, for the target and its immediate
 *     children; if #svn_depth_infinity, for the target and
 *     everything underneath it, fully recursively.
 *
 *     If @a depth is #svn_depth_unknown, take depths from the
 *     working copy and behave as above in each directory's case.
 *
 *     If the given @a depth is incompatible with the depth found in a
 *     working copy directory, the found depth always governs.
 *
 * If @a no_ignore is set, statuses that would typically be ignored
 * will instead be reported.
 *
 * If @a get_excluded is true, statuses for the roots of excluded subtrees
 * are reported.  Otherwise excluded subtrees are ignored.
 *
 * @a ignore_patterns is an array of file patterns matching
 * unversioned files to ignore for the purposes of status reporting,
 * or @c NULL if the default set of ignorable file patterns should be used.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton while walking
 * to determine if the client has cancelled the operation.
 *
 * If @a external_func is non-NULL, call it with @a external_baton if an
 * external definition is found while walking @a local_abspath.
 *
 * This function uses @a scratch_pool for temporary allocations.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_walk_status(svn_wc_context_t *wc_ctx,
                   const char *local_abspath,
                   svn_depth_t depth,
                   svn_boolean_t get_all,
                   svn_boolean_t no_ignore,
                   svn_boolean_t get_excluded,
                   const apr_array_header_t *ignore_patterns,
                   svn_wc_status_func4_t status_func,
                   void *status_baton,
                   svn_wc_external_update_t external_func,
                   void *external_baton,
                   svn_cancel_func_t cancel_func,
                   void *cancel_baton,
                   apr_pool_t *scratch_pool);

/**
 * Set @a *editor and @a *edit_baton to an editor that generates
 * #svn_wc_status2_t structures and sends them through @a status_func /
 * @a status_baton.  @a anchor_abspath is a working copy directory
 * directory which will be used as the root of our editor.  If @a
 * target_basename is not "", it represents a node in the @a anchor_abspath
 * which is the subject of the editor drive (otherwise, the @a
 * anchor_abspath is the subject).
 *
 * If @a set_locks_baton is non-@c NULL, it will be set to a baton that can
 * be used in a call to the svn_wc_status_set_repos_locks() function.
 *
 * Callers drive this editor to describe working copy out-of-dateness
 * with respect to the repository.  If this information is not
 * available or not desired, callers should simply call the
 * close_edit() function of the @a editor vtable.
 *
 * If the editor driver calls @a editor's set_target_revision() vtable
 * function, then when the edit drive is completed, @a *edit_revision
 * will contain the revision delivered via that interface.
 *
 * Assuming the target is a directory, then:
 *
 *   - If @a get_all is FALSE, then only locally-modified entries will be
 *     returned.  If TRUE, then all entries will be returned.
 *
 *   - If @a depth is #svn_depth_empty, a status structure will
 *     be returned for the target only; if #svn_depth_files, for the
 *     target and its immediate file children; if
 *     #svn_depth_immediates, for the target and its immediate
 *     children; if #svn_depth_infinity, for the target and
 *     everything underneath it, fully recursively.
 *
 *     If @a depth is #svn_depth_unknown, take depths from the
 *     working copy and behave as above in each directory's case.
 *
 *     If the given @a depth is incompatible with the depth found in a
 *     working copy directory, the found depth always governs.
 *
 * If @a no_ignore is set, statuses that would typically be ignored
 * will instead be reported.
 *
 * @a ignore_patterns is an array of file patterns matching
 * unversioned files to ignore for the purposes of status reporting,
 * or @c NULL if the default set of ignorable file patterns should be used.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton while building
 * the @a statushash to determine if the client has cancelled the operation.
 *
 * If @a traversal_info is non-NULL, then record pre-update traversal
 * state in it.  (Caller should obtain @a traversal_info from
 * svn_wc_init_traversal_info().)
 *
 * ### Since r879231 it's not traversal_info, it's external_func/
 *     external_baton which is ...?
 *
 * Allocate the editor itself in @a pool, but the editor does temporary
 * allocations in a subpool of @a pool.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_status_editor5(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          void **set_locks_baton,
                          svn_revnum_t *edit_revision,
                          svn_wc_context_t *wc_ctx,
                          const char *anchor_abspath,
                          const char *target_basename,
                          svn_depth_t depth,
                          svn_boolean_t get_all,
                          svn_boolean_t no_ignore,
                          const apr_array_header_t *ignore_patterns,
                          svn_wc_status_func4_t status_func,
                          void *status_baton,
                          svn_wc_external_update_t external_func,
                          void *external_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          apr_pool_t *result_pool,
                          apr_pool_t *scratch_pool);

/**
 * Same as svn_wc_get_status_editor5, but using #svn_wc_status_func3_t
 * instead of #svn_wc_status_func4_t. This also uses a single pool
 * parameter, stating that all temporary allocations are performed in
 * manually constructed/destroyed subpool.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_status_editor4(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          void **set_locks_baton,
                          svn_revnum_t *edit_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          svn_depth_t depth,
                          svn_boolean_t get_all,
                          svn_boolean_t no_ignore,
                          const apr_array_header_t *ignore_patterns,
                          svn_wc_status_func3_t status_func,
                          void *status_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_traversal_info_t *traversal_info,
                          apr_pool_t *pool);

/**
 * Same as svn_wc_get_status_editor4(), but using #svn_wc_status_func2_t
 * instead of #svn_wc_status_func3_t.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_status_editor3(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          void **set_locks_baton,
                          svn_revnum_t *edit_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          svn_depth_t depth,
                          svn_boolean_t get_all,
                          svn_boolean_t no_ignore,
                          const apr_array_header_t *ignore_patterns,
                          svn_wc_status_func2_t status_func,
                          void *status_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_traversal_info_t *traversal_info,
                          apr_pool_t *pool);

/**
 * Like svn_wc_get_status_editor3(), but with @a ignore_patterns
 * provided from the corresponding value in @a config, and @a recurse
 * instead of @a depth.  If @a recurse is TRUE, behave as if for
 * #svn_depth_infinity; else if @a recurse is FALSE, behave as if for
 * #svn_depth_immediates.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_status_editor2(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          void **set_locks_baton,
                          svn_revnum_t *edit_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          apr_hash_t *config,
                          svn_boolean_t recurse,
                          svn_boolean_t get_all,
                          svn_boolean_t no_ignore,
                          svn_wc_status_func2_t status_func,
                          void *status_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_traversal_info_t *traversal_info,
                          apr_pool_t *pool);

/**
 * Same as svn_wc_get_status_editor2(), but with @a set_locks_baton set
 * to @c NULL, and taking a deprecated svn_wc_status_func_t argument.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_status_editor(const svn_delta_editor_t **editor,
                         void **edit_baton,
                         svn_revnum_t *edit_revision,
                         svn_wc_adm_access_t *anchor,
                         const char *target,
                         apr_hash_t *config,
                         svn_boolean_t recurse,
                         svn_boolean_t get_all,
                         svn_boolean_t no_ignore,
                         svn_wc_status_func_t status_func,
                         void *status_baton,
                         svn_cancel_func_t cancel_func,
                         void *cancel_baton,
                         svn_wc_traversal_info_t *traversal_info,
                         apr_pool_t *pool);


/**
 * Associate @a locks, a hash table mapping <tt>const char*</tt>
 * absolute repository paths to <tt>svn_lock_t</tt> objects, with a
 * @a set_locks_baton returned by an earlier call to
 * svn_wc_get_status_editor3().  @a repos_root is the repository root URL.
 * Perform all allocations in @a pool.
 *
 * @note @a locks will not be copied, so it must be valid throughout the
 * edit.  @a pool must also not be destroyed or cleared before the edit is
 * finished.
 *
 * @since New in 1.2.
 */
svn_error_t *
svn_wc_status_set_repos_locks(void *set_locks_baton,
                              apr_hash_t *locks,
                              const char *repos_root,
                              apr_pool_t *pool);

/** @} */


/**
 * Copy @a src_abspath to @a dst_abspath, and schedule @a dst_abspath
 * for addition to the repository, remembering the copy history. @a wc_ctx
 * is used for accessing the working copy and must contain a write lock for
 * the parent directory of @a dst_abspath,
 *
 * @a src_abspath must be a file or directory under version control;
 * the parent of @a dst_abspath must be a directory under version control
 * in the same working copy; @a dst_abspath will be the name of the copied
 * item, and it must not exist already.  Note that when @a src points to a
 * versioned file, the working file doesn't necessarily exist in which case
 * its text-base is used instead.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton at
 * various points during the operation.  If it returns an error
 * (typically #SVN_ERR_CANCELLED), return that error immediately.
 *
 * For each file or directory copied, @a notify_func will be called
 * with its path and the @a notify_baton.  @a notify_func may be @c NULL
 * if you are not interested in this information.
 *
 * Use @a scratch_pool for temporary allocations.
 *
 * @par Important:
 * This is a variant of svn_wc_add4().  No changes will happen
 * to the repository until a commit occurs.  This scheduling can be
 * removed with svn_client_revert2().
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_copy3(svn_wc_context_t *wc_ctx,
             const char *src_abspath,
             const char *dst_abspath,
             svn_cancel_func_t cancel_func,
             void *cancel_baton,
             svn_wc_notify_func2_t notify_func,
             void *notify_baton,
             apr_pool_t *scratch_pool);

/* Similar to svn_wc_copy3(), but takes access batons and a relative path
 * and a basename instead of absolute paths and a working copy context.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_copy2(const char *src,
             svn_wc_adm_access_t *dst_parent,
             const char *dst_basename,
             svn_cancel_func_t cancel_func,
             void *cancel_baton,
             svn_wc_notify_func2_t notify_func,
             void *notify_baton,
             apr_pool_t *pool);

/**
 * Similar to svn_wc_copy2(), but takes an #svn_wc_notify_func_t instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_copy(const char *src,
            svn_wc_adm_access_t *dst_parent,
            const char *dst_basename,
            svn_cancel_func_t cancel_func,
            void *cancel_baton,
            svn_wc_notify_func_t notify_func,
            void *notify_baton,
            apr_pool_t *pool);

/**
 * Schedule @a local_abspath for deletion, it will be deleted from the
 * repository on the next commit.  If @a local_abspath refers to a
 * directory, then a recursive deletion will occur. @a wc_ctx must hold
 * a write lock for the parent of @a local_abspath, @a local_abspath itself
 * and everything below @ local_abspath.
 *
 * If @a keep_local is FALSE, this function immediately deletes all files,
 * modified and unmodified, versioned and of @a delete_unversioned is TRUE,
 * unversioned from the working copy.
 * It also immediately deletes unversioned directories and directories that
 * are scheduled to be added below @a local_abspath.  Only versioned may
 * remain in the working copy, these get deleted by the update following
 * the commit.
 *
 * If @a keep_local is TRUE, all files and directories will be kept in the
 * working copy (and will become unversioned on the next commit).
 *
 * If @a delete_unversioned_target is TRUE and @a local_abspath is not
 * versioned, @a local_abspath will be handled as an added files without
 * history. So it will be deleted if @a keep_local is FALSE. If @a
 * delete_unversioned is FALSE and @a local_abspath is not versioned a
 * #SVN_ERR_WC_PATH_NOT_FOUND error will be returned.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton at
 * various points during the operation.  If it returns an error
 * (typically #SVN_ERR_CANCELLED), return that error immediately.
 *
 * For each path marked for deletion, @a notify_func will be called with
 * the @a notify_baton and that path. The @a notify_func callback may be
 * @c NULL if notification is not needed.
 *
 * Use @a scratch_pool for temporary allocations.  It may be cleared
 * immediately upon returning from this function.
 *
 * @since New in 1.7.
 */
 /* ### BH: Maybe add a delete_switched flag that allows deny switched
            nodes like file externals? */
svn_error_t *
svn_wc_delete4(svn_wc_context_t *wc_ctx,
               const char *local_abspath,
               svn_boolean_t keep_local,
               svn_boolean_t delete_unversioned_target,
               svn_cancel_func_t cancel_func,
               void *cancel_baton,
               svn_wc_notify_func2_t notify_func,
               void *notify_baton,
               apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_delete4, but uses an access baton and relative path
 * instead of a working copy context and absolute path. @a adm_access
 * must hold a write lock for the parent of @a local_abspath.
 *
 * @c delete_unversioned will always be set to TRUE.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_delete3(const char *path,
               svn_wc_adm_access_t *adm_access,
               svn_cancel_func_t cancel_func,
               void *cancel_baton,
               svn_wc_notify_func2_t notify_func,
               void *notify_baton,
               svn_boolean_t keep_local,
               apr_pool_t *pool);

/**
 * Similar to svn_wc_delete3(), but with @a keep_local always set to FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_delete2(const char *path,
               svn_wc_adm_access_t *adm_access,
               svn_cancel_func_t cancel_func,
               void *cancel_baton,
               svn_wc_notify_func2_t notify_func,
               void *notify_baton,
               apr_pool_t *pool);

/**
 * Similar to svn_wc_delete2(), but takes an #svn_wc_notify_func_t instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_delete(const char *path,
              svn_wc_adm_access_t *adm_access,
              svn_cancel_func_t cancel_func,
              void *cancel_baton,
              svn_wc_notify_func_t notify_func,
              void *notify_baton,
              apr_pool_t *pool);


/**
 * Put @a local_abspath under version control by adding an entry in its
 * parent, and if @a local_abspath is a directory, adding an
 * administrative area.  The new node and anything under it is scheduled
 * for addition to the repository.  @a wc_ctx should hold a write lock
 * for the parent directory of @a local_abspath.  If @a local_abspath is
 * a directory then an access baton for @a local_abspath will be added
 * to the set containing @a parent_access.
 *
 * If @a local_abspath does not exist, return #SVN_ERR_WC_PATH_NOT_FOUND.
 *
 * If @a local_abspath is a directory, add it at @a depth; otherwise, ignore
 * @a depth.
 *
 * If @a copyfrom_url is non-NULL, it and @a copyfrom_rev are used as
 * `copyfrom' args.  This is for copy operations, where one wants
 * to schedule @a local_abspath for addition with a particular history.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton at
 * various points during the operation.  If it returns an error
 * (typically #SVN_ERR_CANCELLED), return that error immediately.
 *
 * When the @a local_abspath has been added, then @a notify_func will be
 * called (if it is not @c NULL) with the @a notify_baton and the path.
 *
 * Return #SVN_ERR_WC_NODE_KIND_CHANGE if @a local_abspath is both an
 * unversioned directory and a file that is scheduled for deletion or in
 * state deleted.
 *
 *<pre> ### This function currently does double duty -- it is also
 * ### responsible for "switching" a working copy directory over to a
 * ### new copyfrom ancestry and scheduling it for addition.  Here is
 * ### the old doc string from Ben, lightly edited to bring it
 * ### up-to-date, explaining the TRUE, secret life of this function:</pre>
 *
 * Given a @a path within a working copy of type KIND, follow this algorithm:
 *
 *    - if @a path is not under version control:
 *       - Place it under version control and schedule for addition;
 *         if @a copyfrom_url is non-NULL, use it and @a copyfrom_rev as
 *         'copyfrom' history
 *
 *    - if @a path is already under version control:
 *          (This can only happen when a directory is copied, in which
 *           case ancestry must have been supplied as well.)
 *
 *       -  Schedule the directory itself for addition with copyfrom history.
 *       -  Mark all its children with a 'copied' flag
 *       -  Rewrite all the URLs to what they will be after a commit.
 *       -  ### @todo Remove old wcprops too, see the '###' below.
 *
 *<pre> ### I think possibly the "switchover" functionality should be
 * ### broken out into a separate function, but it's all intertwined in
 * ### the code right now.  Ben, thoughts?  Hard?  Easy?  Mauve?</pre>
 *
 * ### Update: see "###" comment in svn_wc_add_repos_file3()'s doc
 * string about this.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_add4(svn_wc_context_t *wc_ctx,
            const char *local_abspath,
            svn_depth_t depth,
            const char *copyfrom_url,
            svn_revnum_t copyfrom_rev,
            svn_cancel_func_t cancel_func,
            void *cancel_baton,
            svn_wc_notify_func2_t notify_func,
            void *notify_baton,
            apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_add4(), but with an access baton
 * and relative path instead of a context and absolute path.
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add3(const char *path,
            svn_wc_adm_access_t *parent_access,
            svn_depth_t depth,
            const char *copyfrom_url,
            svn_revnum_t copyfrom_rev,
            svn_cancel_func_t cancel_func,
            void *cancel_baton,
            svn_wc_notify_func2_t notify_func,
            void *notify_baton,
            apr_pool_t *pool);

/**
 * Similar to svn_wc_add3(), but with the @a depth parameter always
 * #svn_depth_infinity.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add2(const char *path,
            svn_wc_adm_access_t *parent_access,
            const char *copyfrom_url,
            svn_revnum_t copyfrom_rev,
            svn_cancel_func_t cancel_func,
            void *cancel_baton,
            svn_wc_notify_func2_t notify_func,
            void *notify_baton,
            apr_pool_t *pool);

/**
 * Similar to svn_wc_add2(), but takes an #svn_wc_notify_func_t instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add(const char *path,
           svn_wc_adm_access_t *parent_access,
           const char *copyfrom_url,
           svn_revnum_t copyfrom_rev,
           svn_cancel_func_t cancel_func,
           void *cancel_baton,
           svn_wc_notify_func_t notify_func,
           void *notify_baton,
           apr_pool_t *pool);

/** Add a file to a working copy at @a local_abspath, obtaining the
 *text-base's contents from @a new_base_contents, the wc file's
 * content from @a new_contents, its unmodified properties from @a
 * new_base_props and its actual properties from @a new_props. Use
 * @a wc_ctx for accessing the working copy.
 *
 * The unmodified text and props normally come from the repository
 * file represented by the copyfrom args, see below.  The new file
 * will be marked as copy.
 *
 * @a new_contents and @a new_props may be NULL, in which case
 * the working copy text and props are taken from the base files with
 * appropriate translation of the file's content.
 *
 * @a new_contents must be provided in Normal Form. This is required
 * in order to pass both special and non-special files through a stream.
 *
 * @a wc_ctx must contain a write lock for the parent of @a dst_path.
 *
 * If @a copyfrom_url is non-NULL, then @a copyfrom_rev must be a
 * valid revision number, and together they are the copyfrom history
 * for the new file.
 *
 * The @a cancel_func and @a cancel_baton are a standard cancellation
 * callback, or NULL if no callback is needed. @a notify_func and
 * @a notify_baton are a notification callback, and (if not NULL)
 * will be notified of the addition of this file.
 *
 * Use @a scratch_pool for temporary allocations.
 *
 * ### NOTE: the notification callback/baton is not yet used.
 *
 * ### This function is very redundant with svn_wc_add().  Ideally,
 * we'd merge them, so that svn_wc_add() would just take optional
 * new_props and optional copyfrom information.  That way it could be
 * used for both 'svn add somefilesittingonmydisk' and for adding
 * files from repositories, with or without copyfrom history.
 *
 * The problem with this Ideal Plan is that svn_wc_add() also takes
 * care of recursive URL-rewriting.  There's a whole comment in its
 * doc string about how that's really weird, outside its core mission,
 * etc, etc.  So another part of the Ideal Plan is that that
 * functionality of svn_wc_add() would move into a separate function.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_add_repos_file4(svn_wc_context_t *wc_ctx,
                       const char *local_abspath,
                       svn_stream_t *new_base_contents,
                       svn_stream_t *new_contents,
                       apr_hash_t *new_base_props,
                       apr_hash_t *new_props,
                       const char *copyfrom_url,
                       svn_revnum_t copyfrom_rev,
                       svn_cancel_func_t cancel_func,
                       void *cancel_baton,
                       svn_wc_notify_func2_t notify_func,
                       void *notify_baton,
                       apr_pool_t *scratch_pool);

/* Similar to svn_wc_add_repos_file4, but uses access batons and a
 * relative path instead of a working copy context and absolute path.
 *
 * @since New in 1.6.
 * @deprecated Provided for compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add_repos_file3(const char *dst_path,
                       svn_wc_adm_access_t *adm_access,
                       svn_stream_t *new_base_contents,
                       svn_stream_t *new_contents,
                       apr_hash_t *new_base_props,
                       apr_hash_t *new_props,
                       const char *copyfrom_url,
                       svn_revnum_t copyfrom_rev,
                       svn_cancel_func_t cancel_func,
                       void *cancel_baton,
                       svn_wc_notify_func2_t notify_func,
                       void *notify_baton,
                       apr_pool_t *scratch_pool);


/** Same as svn_wc_add_repos_file3(), except that it has pathnames rather
 * than streams for the text base, and actual text, and has no cancellation.
 *
 * @since New in 1.4.
 * @deprecated Provided for compatibility with the 1.5 API
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add_repos_file2(const char *dst_path,
                       svn_wc_adm_access_t *adm_access,
                       const char *new_text_base_path,
                       const char *new_text_path,
                       apr_hash_t *new_base_props,
                       apr_hash_t *new_props,
                       const char *copyfrom_url,
                       svn_revnum_t copyfrom_rev,
                       apr_pool_t *pool);

/** Same as svn_wc_add_repos_file3(), except that it doesn't have the
 * BASE arguments or cancellation.
 *
 * @deprecated Provided for compatibility with the 1.3 API
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_add_repos_file(const char *dst_path,
                      svn_wc_adm_access_t *adm_access,
                      const char *new_text_path,
                      apr_hash_t *new_props,
                      const char *copyfrom_url,
                      svn_revnum_t copyfrom_rev,
                      apr_pool_t *pool);


/** Remove @a local_abspath from revision control.  @a wc_ctx must
 * hold a write lock.
 *
 * If @a local_abspath is a file, all its info will be removed from the
 * administrative area.  If @a name is a directory, then the administrative
 * area will be deleted, along with *all* the administrative areas anywhere
 * in the tree below @a adm_access.
 *
 * Normally, only administrative data is removed.  However, if
 * @a destroy_wf is TRUE, then all working file(s) and dirs are deleted
 * from disk as well.  When called with @a destroy_wf, any locally
 * modified files will *not* be deleted, and the special error
 * #SVN_ERR_WC_LEFT_LOCAL_MOD might be returned.  (Callers only need to
 * check for this special return value if @a destroy_wf is TRUE.)
 *
 * If @a instant_error is TRUE, then return
 * #SVN_ERR_WC_LEFT_LOCAL_MOD the instant a locally modified file is
 * encountered.  Otherwise, leave locally modified files in place and
 * return the error only after all the recursion is complete.
 *
 * If @a cancel_func is non-NULL, call it with @a cancel_baton at
 * various points during the removal.  If it returns an error
 * (typically #SVN_ERR_CANCELLED), return that error immediately.
 *
 * WARNING:  This routine is exported for careful, measured use by
 * libsvn_client.  Do *not* call this routine unless you really
 * understand what the heck you're doing.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_remove_from_revision_control2(svn_wc_context_t *wc_ctx,
                                     const char *local_abspath,
                                     svn_boolean_t destroy_wf,
                                     svn_boolean_t instant_error,
                                     svn_cancel_func_t cancel_func,
                                     void *cancel_baton,
                                     apr_pool_t *pool);

/**
 * Similar to svn_wc_remove_from_revision_control2() but with a name
 * and access baton.
 *
 * WARNING:  This routine was exported for careful, measured use by
 * libsvn_client.  Do *not* call this routine unless you really
 * understand what the heck you're doing.
 *
 * @deprecated Provided for compatibility with the 1.6 API
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_remove_from_revision_control(svn_wc_adm_access_t *adm_access,
                                    const char *name,
                                    svn_boolean_t destroy_wf,
                                    svn_boolean_t instant_error,
                                    svn_cancel_func_t cancel_func,
                                    void *cancel_baton,
                                    apr_pool_t *pool);


/**
 * Assuming @a local_abspath is under version control or a tree conflict
 * victime and in a state of conflict, then take @a local_abspath *out*
 * of this state.  If @a resolve_text is TRUE then any text conflict is
 * resolved, if @a resolve_tree is TRUE then any tree conflicts are
 * resolved. If @a resolve_prop is set to "" all property conflicts are
 * resolved, if it is set to any other string value, conflicts on that
 * specific property are resolved and when resolve_prop is NULL, no
 * property conflicts are resolved.
 *
 * If @a depth is #svn_depth_empty, act only on @a local_abspath; if
 * #svn_depth_files, resolve @a local_abspath and its conflicted file
 * children (if any); if #svn_depth_immediates, resolve @a local_abspath
 * and all its immediate conflicted children (both files and directories,
 * if any); if #svn_depth_infinity, resolve @a local_abspath and every
 * conflicted file or directory anywhere beneath it.
 *
 * If @a conflict_choice is #svn_wc_conflict_choose_base, resolve the
 * conflict with the old file contents; if
 * #svn_wc_conflict_choose_mine_full, use the original working contents;
 * if #svn_wc_conflict_choose_theirs_full, the new contents; and if
 * #svn_wc_conflict_choose_merged, don't change the contents at all,
 * just remove the conflict status, which is the pre-1.5 behavior.
 *
 * #svn_wc_conflict_choose_theirs_conflict and
 * #svn_wc_conflict_choose_mine_conflict are not legal for binary
 * files or properties.
 *
 * @a wc_ctx is a working copy context, with a write lock, for @a
 * local_abspath.
 *
 * Needless to say, this function doesn't touch conflict markers or
 * anything of that sort -- only a human can semantically resolve a
 * conflict.  Instead, this function simply marks a file as "having
 * been resolved", clearing the way for a commit.
 *
 * The implementation details are opaque, as our "conflicted" criteria
 * might change over time.  (At the moment, this routine removes the
 * three fulltext 'backup' files and any .prej file created in a conflict,
 * and modifies @a local_abspath's entry.)
 *
 * If @a local_abspath is not under version control and not a tree
 * conflict, return #SVN_ERR_ENTRY_NOT_FOUND. If @a path isn't in a
 * state of conflict to begin with, do nothing, and return #SVN_NO_ERROR.
 *
 * If @c local_abspath was successfully taken out of a state of conflict,
 * report this information to @c notify_func (if non-@c NULL.)  If only
 * text, only property, or only tree conflict resolution was requested,
 * and it was successful, then success gets reported.
 *
 * Temporary allocations will be performed in @a scratch_pool.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_resolved_conflict5(svn_wc_context_t *wc_ctx,
                          const char *local_abspath,
                          svn_depth_t depth,
                          svn_boolean_t resolve_text,
                          const char *resolve_prop,
                          svn_boolean_t resolve_tree,
                          svn_wc_conflict_choice_t conflict_choice,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          apr_pool_t *scratch_pool);

/** Similar to svn_wc_resolved_conflict5, but takes an absolute path
 * and an access baton. This version doesn't support resolving a specific
 * property.conflict.
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_resolved_conflict4(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t resolve_text,
                          svn_boolean_t resolve_props,
                          svn_boolean_t resolve_tree,
                          svn_depth_t depth,
                          svn_wc_conflict_choice_t conflict_choice,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          apr_pool_t *pool);


/**
 * Similar to svn_wc_resolved_conflict4(), but without tree-conflict
 * resolution support.
 *
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_resolved_conflict3(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t resolve_text,
                          svn_boolean_t resolve_props,
                          svn_depth_t depth,
                          svn_wc_conflict_choice_t conflict_choice,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          apr_pool_t *pool);


/**
 * Similar to svn_wc_resolved_conflict3(), but without automatic conflict
 * resolution support, and with @a depth set according to @a recurse:
 * if @a recurse is TRUE, @a depth is #svn_depth_infinity, else it is
 * #svn_depth_files.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_resolved_conflict2(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t resolve_text,
                          svn_boolean_t resolve_props,
                          svn_boolean_t recurse,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          apr_pool_t *pool);

/**
 * Similar to svn_wc_resolved_conflict2(), but takes an
 * svn_wc_notify_func_t and doesn't have cancellation support.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_resolved_conflict(const char *path,
                         svn_wc_adm_access_t *adm_access,
                         svn_boolean_t resolve_text,
                         svn_boolean_t resolve_props,
                         svn_boolean_t recurse,
                         svn_wc_notify_func_t notify_func,
                         void *notify_baton,
                         apr_pool_t *pool);


/* Commits. */


/**
 * Storage type for queued post-commit data.
 *
 * @since New in 1.5.
 */
typedef struct svn_wc_committed_queue_t svn_wc_committed_queue_t;


/**
 * Create a queue for use with svn_wc_queue_committed() and
 * svn_wc_process_committed_queue().
 *
 * The returned queue and all further allocations required for queueing
 * new items will also be done from @a pool.
 *
 * @since New in 1.5.
 */
svn_wc_committed_queue_t *
svn_wc_committed_queue_create(apr_pool_t *pool);


/**
 * Queue committed items to be processed later by
 * svn_wc_process_committed_queue2().
 *
 * All pointer data passed to this function (@a local_abspath,
 * @a wcprop_changes * and @a checksum) should remain valid until the
 * queue has been processed by svn_wc_process_committed_queue2().
 *
 * Record in @a queue that @a local_abspath will need to be bumped
 * after a commit succeeds.
 *
 * If non-NULL, @a wcprop_changes is an array of <tt>svn_prop_t *</tt>
 * changes to wc properties; if an #svn_prop_t->value is NULL, then
 * that property is deleted.
 *
 * If @a remove_lock is @c TRUE, any entryprops related to a repository
 * lock will be removed.
 *
 * If @a remove_changelist is @c TRUE, any association with a
 * changelist will be removed.
 *
 * If @a local_abspath is a file and @a checksum is non-NULL, use @a checksum
 * as the checksum for the new text base. Otherwise, calculate the checksum
 * if needed.
 *
 * If @a recurse is TRUE and @a local_abspath is a directory, then bump every
 * versioned object at or under @a path.  This is usually done for
 * copied trees.
 *
 * Temporary allocations will be performed in @a scratch_pool, and persistent
 * allocations will use the same pool as @a queue used when it was created.
 *
 * @note the @a recurse parameter should be used with extreme care since
 * it will bump ALL nodes under the directory, regardless of their
 * actual inclusion in the new revision.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_queue_committed3(svn_wc_committed_queue_t *queue,
                        const char *local_abspath,
                        svn_boolean_t recurse,
                        const apr_array_header_t *wcprop_changes,
                        svn_boolean_t remove_lock,
                        svn_boolean_t remove_changelist,
                        const svn_checksum_t *checksum,
                        apr_pool_t *scratch_pool);

/** @see svn_wc_queue_committed3()
 *
 * @a adm_access is unused.
 *
 * @since New in 1.6.
 *
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_queue_committed2(svn_wc_committed_queue_t *queue,
                        const char *path,
                        svn_wc_adm_access_t *adm_access,
                        svn_boolean_t recurse,
                        const apr_array_header_t *wcprop_changes,
                        svn_boolean_t remove_lock,
                        svn_boolean_t remove_changelist,
                        const svn_checksum_t *checksum,
                        apr_pool_t *scratch_pool);


/** Same as svn_wc_queue_committed2() but the @a queue parameter has an
 * extra indirection and @a digest is supplied instead of a checksum type.
 *
 * @note despite the extra indirection, this function does NOT allocate
 *   the queue for you. svn_wc_committed_queue_create() must be called.
 *
 * @since New in 1.5
 *
 * @deprecated Provided for backwards compatibility with 1.5
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_queue_committed(svn_wc_committed_queue_t **queue,
                       const char *path,
                       svn_wc_adm_access_t *adm_access,
                       svn_boolean_t recurse,
                       const apr_array_header_t *wcprop_changes,
                       svn_boolean_t remove_lock,
                       svn_boolean_t remove_changelist,
                       const unsigned char *digest,
                       apr_pool_t *pool);


/**
 * Bump all items in @a queue to @a new_revnum after a commit succeeds.
 * @a rev_date and @a rev_author are the (server-side) date and author
 * of the new revision; one or both may be @c NULL.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_process_committed_queue2(svn_wc_committed_queue_t *queue,
                                svn_wc_context_t *wc_ctx,
                                svn_revnum_t new_revnum,
                                const char *rev_date,
                                const char *rev_author,
                                apr_pool_t *scratch_pool);

/** @see svn_wc_process_committed_queue2()
 *
 * @since New in 1.5.
 *
 * @deprecated Provided for backwards compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_process_committed_queue(svn_wc_committed_queue_t *queue,
                               svn_wc_adm_access_t *adm_access,
                               svn_revnum_t new_revnum,
                               const char *rev_date,
                               const char *rev_author,
                               apr_pool_t *pool);


/**
 * @note this function has improper expectations around the operation and
 *   execution of other parts of the Subversion WC library. The resulting
 *   coupling makes this interface near-impossible to support. Documentation
 *   has been removed, as a result.
 *
 * @deprecated Use the svn_wc_committed_queue_* functions instead. Provided
 *   for backwards compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_process_committed4(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t recurse,
                          svn_revnum_t new_revnum,
                          const char *rev_date,
                          const char *rev_author,
                          const apr_array_header_t *wcprop_changes,
                          svn_boolean_t remove_lock,
                          svn_boolean_t remove_changelist,
                          const unsigned char *digest,
                          apr_pool_t *pool);

/** @see svn_wc_process_committed4()
 *
 * @deprecated Use the svn_wc_committed_queue_* functions instead. Provided
 *   for backwards compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_process_committed3(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t recurse,
                          svn_revnum_t new_revnum,
                          const char *rev_date,
                          const char *rev_author,
                          const apr_array_header_t *wcprop_changes,
                          svn_boolean_t remove_lock,
                          const unsigned char *digest,
                          apr_pool_t *pool);

/** @see svn_wc_process_committed4()
 *
 * @deprecated Use the svn_wc_committed_queue_* functions instead. Provided
 *   for backwards compatibility with the 1.3 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_process_committed2(const char *path,
                          svn_wc_adm_access_t *adm_access,
                          svn_boolean_t recurse,
                          svn_revnum_t new_revnum,
                          const char *rev_date,
                          const char *rev_author,
                          const apr_array_header_t *wcprop_changes,
                          svn_boolean_t remove_lock,
                          apr_pool_t *pool);

/** @see svn_wc_process_committed4()
 *
 * @deprecated Use the svn_wc_committed_queue_* functions instead. Provided
 *   for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_process_committed(const char *path,
                         svn_wc_adm_access_t *adm_access,
                         svn_boolean_t recurse,
                         svn_revnum_t new_revnum,
                         const char *rev_date,
                         const char *rev_author,
                         const apr_array_header_t *wcprop_changes,
                         apr_pool_t *pool);





/**
 * Do a depth-first crawl in a working copy, beginning at @a local_abspath,
 * using @a wc_ctx for accessing the working copy.
 *
 * Communicate the `state' of the working copy's revisions and depths
 * to @a reporter/@a report_baton.  Obviously, if @a local_abspath is a
 * file instead of a directory, this depth-first crawl will be a short one.
 *
 * No locks or logs are created, nor are any animals harmed in the
 * process unless @a restore_files is TRUE.  No cleanup is necessary.
 * The working copy is accessed using @a wc_ctx.
 *
 * After all revisions are reported, @a reporter->finish_report() is
 * called, which immediately causes the RA layer to update the working
 * copy.  Thus the return value may very well reflect the result of
 * the update!
 *
 * If @a depth is #svn_depth_empty, then report state only for
 * @a path itself.  If #svn_depth_files, do the same and include
 * immediate file children of @a path.  If #svn_depth_immediates,
 * then behave as if for #svn_depth_files but also report the
 * property states of immediate subdirectories.  If @a depth is
 * #svn_depth_infinity, then report state fully recursively.  All
 * descents are only as deep as @a path's own depth permits, of
 * course.  If @a depth is #svn_depth_unknown, then just use
 * #svn_depth_infinity, which in practice means depth of @a path.
 *
 * Iff @a honor_depth_exclude is TRUE, the crawler will report paths
 * whose ambient depth is #svn_depth_exclude as being excluded, and
 * thus prevent the server from pushing update data for those paths;
 * therefore, don't set this flag if you wish to pull in excluded paths.
 * Note that #svn_depth_exclude on the target @a path is never
 * honored, even if @a honor_depth_exclude is TRUE, because we need to
 * be able to explicitly pull in a target.  For example, if this is
 * the working copy...
 *
 *    svn co greek_tree_repos wc_dir
 *    svn up --set-depth exclude wc_dir/A/B/E  # now A/B/E is excluded
 *
 * ...then 'svn up wc_dir/A/B' would report E as excluded (assuming
 * @a honor_depth_exclude is TRUE), but 'svn up wc_dir/A/B/E' would
 * not, because the latter is trying to explicitly pull in E.  In
 * general, we never report the update target as excluded.
 *
 * Iff @a depth_compatibility_trick is TRUE, then set the @c start_empty
 * flag on @a reporter->set_path() and @a reporter->link_path() calls
 * as necessary to trick a pre-1.5 (i.e., depth-unaware) server into
 * sending back all the items the client might need to upgrade a
 * working copy from a shallower depth to a deeper one.
 *
 * If @a restore_files is TRUE, then unexpectedly missing working files
 * will be restored from the administrative directory's cache. For each
 * file restored, the @a notify_func function will be called with the
 * @a notify_baton and the path of the restored file. @a notify_func may
 * be @c NULL if this notification is not required.  If @a
 * use_commit_times is TRUE, then set restored files' timestamps to
 * their last-commit-times.
 *
 * If @a traversal_info is non-NULL, then record pre-update traversal
 * state in it.  (Caller should obtain @a traversal_info from
 * svn_wc_init_traversal_info().)
 *
 * ### Since r879231 it's not traversal_info, it's external_func/
 *     external_baton which is ...?
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_crawl_revisions5(svn_wc_context_t *wc_ctx,
                        const char *local_abspath,
                        const svn_ra_reporter3_t *reporter,
                        void *report_baton,
                        svn_boolean_t restore_files,
                        svn_depth_t depth,
                        svn_boolean_t honor_depth_exclude,
                        svn_boolean_t depth_compatibility_trick,
                        svn_boolean_t use_commit_times,
                        svn_wc_external_update_t external_func,
                        void *external_baton,
                        svn_wc_notify_func2_t notify_func,
                        void *notify_baton,
                        apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_crawl_revisions5, but with a relative path and
 * access baton instead of an absolute path and wc_ctx.
 *
 * @since New in 1.6.
 * @deprecated Provided for compatibility with the 1.6 API.
 */
SVN_DEPRECATED svn_error_t *
svn_wc_crawl_revisions4(const char *path,
                        svn_wc_adm_access_t *adm_access,
                        const svn_ra_reporter3_t *reporter,
                        void *report_baton,
                        svn_boolean_t restore_files,
                        svn_depth_t depth,
                        svn_boolean_t honor_depth_exclude,
                        svn_boolean_t depth_compatibility_trick,
                        svn_boolean_t use_commit_times,
                        svn_wc_notify_func2_t notify_func,
                        void *notify_baton,
                        svn_wc_traversal_info_t *traversal_info,
                        apr_pool_t *pool);


/**
 * Similar to svn_wc_crawl_revisions4, but with @a honor_depth_exclude always
 * set to false.
 *
 * @deprecated Provided for compatibility with the 1.5 API.
 */
svn_error_t *
svn_wc_crawl_revisions3(const char *path,
                        svn_wc_adm_access_t *adm_access,
                        const svn_ra_reporter3_t *reporter,
                        void *report_baton,
                        svn_boolean_t restore_files,
                        svn_depth_t depth,
                        svn_boolean_t depth_compatibility_trick,
                        svn_boolean_t use_commit_times,
                        svn_wc_notify_func2_t notify_func,
                        void *notify_baton,
                        svn_wc_traversal_info_t *traversal_info,
                        apr_pool_t *pool);

/**
 * Similar to svn_wc_crawl_revisions3, but taking svn_ra_reporter2_t
 * instead of svn_ra_reporter3_t, and therefore only able to report
 * #svn_depth_infinity for depths; and taking @a recurse instead of @a
 * depth; and with @a depth_compatibility_trick always false.
 *
 * @deprecated Provided for compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_crawl_revisions2(const char *path,
                        svn_wc_adm_access_t *adm_access,
                        const svn_ra_reporter2_t *reporter,
                        void *report_baton,
                        svn_boolean_t restore_files,
                        svn_boolean_t recurse,
                        svn_boolean_t use_commit_times,
                        svn_wc_notify_func2_t notify_func,
                        void *notify_baton,
                        svn_wc_traversal_info_t *traversal_info,
                        apr_pool_t *pool);

/**
 * Similar to svn_wc_crawl_revisions2(), but takes an #svn_wc_notify_func_t
 * and a #svn_ra_reporter_t instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_crawl_revisions(const char *path,
                       svn_wc_adm_access_t *adm_access,
                       const svn_ra_reporter_t *reporter,
                       void *report_baton,
                       svn_boolean_t restore_files,
                       svn_boolean_t recurse,
                       svn_boolean_t use_commit_times,
                       svn_wc_notify_func_t notify_func,
                       void *notify_baton,
                       svn_wc_traversal_info_t *traversal_info,
                       apr_pool_t *pool);


/* Updates. */

/** Set @a *wc_root to @c TRUE if @a path represents a "working copy root",
 * @c FALSE otherwise. Here, @a path is a "working copy root" if its parent
 * directory is not a WC or if its parent directory's repository URL is not
 * the parent of its own repository URL. Thus, a switched subtree is
 * considered to be a working copy root. Also, a deleted tree-conflict
 * victim is considered a "working copy root" because it has no URL.
 *
 * If @a path is not found, return the error #SVN_ERR_ENTRY_NOT_FOUND.
 *
 * Use @a pool for any intermediate allocations.
 *
 * @note Due to the way in which "WC-root-ness" is calculated, passing
 * a @a path of `.' to this function will always return @c TRUE.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_is_wc_root2(svn_boolean_t *wc_root,
                   svn_wc_context_t *wc_ctx,
                   const char *local_abspath,
                   apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_is_wc_root2(), but with an access baton and relative
 * path.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_is_wc_root(svn_boolean_t *wc_root,
                  const char *path,
                  svn_wc_adm_access_t *adm_access,
                  apr_pool_t *pool);


/** Conditionally split @a path into an @a anchor and @a target for the
 * purpose of updating and committing.
 *
 * @a anchor is the directory at which the update or commit editor
 * should be rooted.
 *
 * @a target is the actual subject (relative to the @a anchor) of the
 * update/commit, or "" if the @a anchor itself is the subject.
 *
 * Allocate @a anchor and @a target in @a result_pool; @a scratch_pool
 * is used for temporary allocations.
 *
 * @note Even though this API uses a #svn_wc_context_t, it accepts a
 * (possibly) relative path and returns a (possibly) relative path in
 * @a *anchor.  The reason being that the outputs are generally used to
 * open access batons, and such opening currently requires relative paths.
 * In the long-run, I expect this API to be removed from 1.7, due to the
 * remove of access batons, but for the time being, the #svn_wc_context_t
 * parameter allows us to avoid opening a duplicate database, just for this
 * function.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_actual_target2(const char **anchor,
                          const char **target,
                          svn_wc_context_t *wc_ctx,
                          const char *path,
                          apr_pool_t *result_pool,
                          apr_pool_t *scratch_pool);


/** Similar to svn_wc_get_actual_target2(), but without the wc context, and
 * with a absolute path.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_actual_target(const char *path,
                         const char **anchor,
                         const char **target,
                         apr_pool_t *pool);



/* Update and update-like functionality. */

/**
 * Set @a *editor and @a *edit_baton to an editor and baton for updating a
 * working copy.
 *
 * @a anchor_abspath is a local working copy directory, with a fully recursive
 * write lock in @a wc_ctx, which will be used as the root of our editor.
 *
 * @a target_basename is the entry in @a anchor_abspath that will actually be
 * updated, or the empty string if all of @a anchor_abspath should be updated.
 *
 * The editor invokes @a notify_func with @a notify_baton as the update
 * progresses, if @a notify_func is non-NULL.
 *
 * If @a cancel_func is non-NULL, the editor will invoke @a cancel_func with
 * @a cancel_baton as the update progresses to see if it should continue.
 *
 * If @a conflict_func is non-NULL, then invoke it with @a
 * conflict_baton whenever a conflict is encountered, giving the
 * callback a chance to resolve the conflict before the editor takes
 * more drastic measures (such as marking a file conflicted, or
 * bailing out of the update).
 *
 * If @a external_func is non-NULL, then invoke it with @a external_baton
 * whenever external changes are encountered, giving the callback a chance
 * to store the external information for processing.
 *
 * If @a fetch_func is non-NULL, then use it (with @a fetch_baton) as
 * a fallback for retrieving repository files whenever 'copyfrom' args
 * are sent into editor->add_file().
 *
 * If @a diff3_cmd is non-NULL, then use it as the diff3 command for
 * any merging; otherwise, use the built-in merge code.
 *
 * @a preserved_exts is an array of filename patterns which, when
 * matched against the extensions of versioned files, determine for
 * which such files any related generated conflict files will preserve
 * the original file's extension as their own.  If a file's extension
 * does not match any of the patterns in @a preserved_exts (which is
 * certainly the case if @a preserved_exts is @c NULL or empty),
 * generated conflict files will carry Subversion's custom extensions.
 *
 * @a target_revision is a pointer to a revision location which, after
 * successful completion of the drive of this editor, will be
 * populated with the revision to which the working copy was updated.
 *
 * If @a use_commit_times is TRUE, then all edited/added files will
 * have their working timestamp set to the last-committed-time.  If
 * FALSE, the working files will be touched with the 'now' time.
 *
 * If @a allow_unver_obstructions is TRUE, then allow unversioned
 * obstructions when adding a path.
 *
 * If @a depth is #svn_depth_infinity, update fully recursively.
 * Else if it is #svn_depth_immediates, update the uppermost
 * directory, its file entries, and the presence or absence of
 * subdirectories (but do not descend into the subdirectories).
 * Else if it is #svn_depth_files, update the uppermost directory
 * and its immediate file entries, but not subdirectories.
 * Else if it is #svn_depth_empty, update exactly the uppermost
 * target, and don't touch its entries.
 *
 * If @a depth_is_sticky is set and @a depth is not
 * #svn_depth_unknown, then in addition to updating PATHS, also set
 * their sticky ambient depth value to @a depth.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_update_editor4(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_revnum_t *target_revision,
                          svn_wc_context_t *wc_ctx,
                          const char *anchor_abspath,
                          const char *target_basename,
                          svn_boolean_t use_commit_times,
                          svn_depth_t depth,
                          svn_boolean_t depth_is_sticky,
                          svn_boolean_t allow_unver_obstructions,
                          const char *diff3_cmd,
                          const apr_array_header_t *preserved_exts,
                          svn_wc_get_file_t fetch_func,
                          void *fetch_baton,
                          svn_wc_conflict_resolver_func_t conflict_func,
                          void *conflict_baton,
                          svn_wc_external_update_t external_func,
                          void *external_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          apr_pool_t *result_pool,
                          apr_pool_t *scratch_pool);

/** Similar to svn_wc_get_update_editor4, but uses access batons and relative
 * path instead of a working copy context-abspath pair and
 * svn_wc_traversal_info_t instead of an externals callback.
 *
 * If @a ti is non-NULL, record traversal info in @a ti, for use by
 * post-traversal accessors such as svn_wc_edited_externals().
 *
 * All locks, both those in @a anchor and newly acquired ones, will be
 * released when the editor driver calls @c close_edit.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_update_editor3(svn_revnum_t *target_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          svn_boolean_t use_commit_times,
                          svn_depth_t depth,
                          svn_boolean_t depth_is_sticky,
                          svn_boolean_t allow_unver_obstructions,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_conflict_resolver_func_t conflict_func,
                          void *conflict_baton,
                          svn_wc_get_file_t fetch_func,
                          void *fetch_baton,
                          const char *diff3_cmd,
                          const apr_array_header_t *preserved_exts,
                          const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_wc_traversal_info_t *ti,
                          apr_pool_t *pool);


/**
 * Similar to svn_wc_get_update_editor3() but with the @a
 * allow_unver_obstructions parameter always set to FALSE, @a
 * conflict_func and baton set to NULL, @a fetch_func and baton set to
 * NULL, @a preserved_exts set to NULL, @a depth_is_sticky set to
 * FALSE, and @a depth set according to @a recurse: if @a recurse is
 * TRUE, pass #svn_depth_infinity, if FALSE, pass #svn_depth_files.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_update_editor2(svn_revnum_t *target_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          svn_boolean_t use_commit_times,
                          svn_boolean_t recurse,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          const char *diff3_cmd,
                          const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_wc_traversal_info_t *ti,
                          apr_pool_t *pool);

/**
 * Similar to svn_wc_get_update_editor2(), but takes an svn_wc_notify_func_t
 * instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_update_editor(svn_revnum_t *target_revision,
                         svn_wc_adm_access_t *anchor,
                         const char *target,
                         svn_boolean_t use_commit_times,
                         svn_boolean_t recurse,
                         svn_wc_notify_func_t notify_func,
                         void *notify_baton,
                         svn_cancel_func_t cancel_func,
                         void *cancel_baton,
                         const char *diff3_cmd,
                         const svn_delta_editor_t **editor,
                         void **edit_baton,
                         svn_wc_traversal_info_t *ti,
                         apr_pool_t *pool);

/**
 * A variant of svn_wc_get_update_editor4().
 *
 * Set @a *editor and @a *edit_baton to an editor and baton for "switching"
 * a working copy to a new @a switch_url.  (Right now, this URL must be
 * within the same repository that the working copy already comes
 * from.)  @a switch_url must not be @c NULL.
 *
 * All other parameters behave as for svn_wc_get_update_editor4().
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_switch_editor4(const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_revnum_t *target_revision,
                          svn_wc_context_t *wc_ctx,
                          const char *anchor_abspath,
                          const char *target_basename,
                          const char *switch_url,
                          svn_boolean_t use_commit_times,
                          svn_depth_t depth,
                          svn_boolean_t depth_is_sticky,
                          svn_boolean_t allow_unver_obstructions,
                          const char *diff3_cmd,
                          const apr_array_header_t *preserved_exts,
                          svn_wc_get_file_t fetch_func,
                          void *fetch_baton,
                          svn_wc_conflict_resolver_func_t conflict_func,
                          void *conflict_baton,
                          svn_wc_external_update_t external_func,
                          void *external_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          apr_pool_t *result_pool,
                          apr_pool_t *scratch_pool);

/** Similar to svn_wc_get_switch_editor4, but uses access batons and relative
 * path instead of a working copy context and svn_wc_traversal_info_t instead
 * of an externals callback. This function doesn't support an external file
 * fetcher.
 *
 * If @a ti is non-NULL, record traversal info in @a ti, for use by
 * post-traversal accessors such as svn_wc_edited_externals().
 *
 * All locks, both those in @a anchor and newly acquired ones, will be
 * released when the editor driver calls @c close_edit.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_switch_editor3(svn_revnum_t *target_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          const char *switch_url,
                          svn_boolean_t use_commit_times,
                          svn_depth_t depth,
                          svn_boolean_t depth_is_sticky,
                          svn_boolean_t allow_unver_obstructions,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          svn_wc_conflict_resolver_func_t conflict_func,
                          void *conflict_baton,
                          const char *diff3_cmd,
                          const apr_array_header_t *preserved_exts,
                          const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_wc_traversal_info_t *ti,
                          apr_pool_t *pool);

/**
 * Similar to svn_wc_get_switch_editor3() but with the
 * @a allow_unver_obstructions parameter always set to FALSE,
 * @a preserved_exts set to NULL, @a conflict_func and baton set to NULL,
 * @a depth_is_sticky set to FALSE, and @a depth set according to @a
 * recurse: if @a recurse is TRUE, pass #svn_depth_infinity, if
 * FALSE, pass #svn_depth_files.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_switch_editor2(svn_revnum_t *target_revision,
                          svn_wc_adm_access_t *anchor,
                          const char *target,
                          const char *switch_url,
                          svn_boolean_t use_commit_times,
                          svn_boolean_t recurse,
                          svn_wc_notify_func2_t notify_func,
                          void *notify_baton,
                          svn_cancel_func_t cancel_func,
                          void *cancel_baton,
                          const char *diff3_cmd,
                          const svn_delta_editor_t **editor,
                          void **edit_baton,
                          svn_wc_traversal_info_t *ti,
                          apr_pool_t *pool);

/**
 * Similar to svn_wc_get_switch_editor2(), but takes an
 * #svn_wc_notify_func_t instead.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_switch_editor(svn_revnum_t *target_revision,
                         svn_wc_adm_access_t *anchor,
                         const char *target,
                         const char *switch_url,
                         svn_boolean_t use_commit_times,
                         svn_boolean_t recurse,
                         svn_wc_notify_func_t notify_func,
                         void *notify_baton,
                         svn_cancel_func_t cancel_func,
                         void *cancel_baton,
                         const char *diff3_cmd,
                         const svn_delta_editor_t **editor,
                         void **edit_baton,
                         svn_wc_traversal_info_t *ti,
                         apr_pool_t *pool);



/* A word about the implementation of working copy property storage:
 *
 * Since properties are key/val pairs, you'd think we store them in
 * some sort of Berkeley DB-ish format, and even store pending changes
 * to them that way too.
 *
 * However, we already have libsvn_subr/hashdump.c working, and it
 * uses a human-readable format.  That will be very handy when we're
 * debugging, and presumably we will not be dealing with any huge
 * properties or property lists initially.  Therefore, we will
 * continue to use hashdump as the internal mechanism for storing and
 * reading from property lists, but note that the interface here is
 * _not_ dependent on that.  We can swap in a DB-based implementation
 * at any time and users of this library will never know the
 * difference.
 */

/** Set @a *props to a hash table mapping <tt>char *</tt> names onto
 * <tt>svn_string_t *</tt> values for all the regular properties of
 * @a local_abspath.  Allocate the table, names, and values in
 * @a result_pool.  If the node has no properties, then an empty hash
 * is returned.  Use @a wc_ctx to access the working copy, and @a
 * scratch_pool for temporary allocations.
 *
 * If the node does not exist, #SVN_ERR_WC_PATH_NOT_FOUND is returned.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_prop_list2(apr_hash_t **props,
                  svn_wc_context_t *wc_ctx,
                  const char *local_abspath,
                  apr_pool_t *result_pool,
                  apr_pool_t *scratch_pool);

/** Similar to svn_wc_prop_list2() but with a #svn_wc_adm_access_t /
 * relative path parameter pair.
 *
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_prop_list(apr_hash_t **props,
                 const char *path,
                 svn_wc_adm_access_t *adm_access,
                 apr_pool_t *pool);


/** Set @a *value to the value of property @a name for @a path, allocating
 * @a *value in @a pool.  If no such prop, set @a *value to @c NULL.
 * @a name may be a regular or wc property; if it is an entry property,
 * return the error #SVN_ERR_BAD_PROP_KIND.  @a adm_access is an access
 * baton set that contains @a path.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_prop_get2(const svn_string_t **value,
                 svn_wc_context_t *wc_ctx,
                 const char *local_abspath,
                 const char *name,
                 apr_pool_t *result_pool,
                 apr_pool_t *scratch_pool);

/** Similar to svn_wc_prop_get2(), but with a #svn_wc_adm_access_t /
 * relative path parameter pair.
 *
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_prop_get(const svn_string_t **value,
                const char *name,
                const char *path,
                svn_wc_adm_access_t *adm_access,
                apr_pool_t *pool);

/**
 * Set property @a name to @a value for @a local_abspath, or if @a value is
 * NULL, remove property @a name from @a local_abspath.  Use @a wc_ctx to
 * access @a local_abspath.
 *
 * If @a skip_checks is TRUE, do no validity checking.  But if @a
 * skip_checks is FALSE, and @a name is not a valid property for @a
 * path, return an error, either #SVN_ERR_ILLEGAL_TARGET (if the
 * property is not appropriate for @a path), or
 * #SVN_ERR_BAD_MIME_TYPE (if @a name is "svn:mime-type", but @a value
 * is not a valid mime-type).
 *
 * @a name may be a wc property or a regular property; but if it is an
 * entry property, return the error #SVN_ERR_BAD_PROP_KIND, even if
 * @a skip_checks is TRUE.
 *
 * For each file or directory operated on, @a notify_func will be called
 * with its path and the @a notify_baton.  @a notify_func may be @c NULL
 * if you are not interested in this information.
 *
 * Use @a scratch_pool for temporary allocation.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_prop_set4(svn_wc_context_t *wc_ctx,
                 const char *local_abspath,
                 const char *name,
                 const svn_string_t *value,
                 svn_boolean_t skip_checks,
                 svn_wc_notify_func2_t notify_func,
                 void *notify_baton,
                 apr_pool_t *scratch_pool);

/** Similar to svn_wc_prop_set4(), but with a #svn_wc_adm_access_t /
 * relative path parameter pair.
 *
 * @since New in 1.6.
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_prop_set3(const char *name,
                 const svn_string_t *value,
                 const char *path,
                 svn_wc_adm_access_t *adm_access,
                 svn_boolean_t skip_checks,
                 svn_wc_notify_func2_t notify_func,
                 void *notify_baton,
                 apr_pool_t *pool);


/**
 * Like svn_wc_prop_set3(), but without the notification callbacks.
 *
 * @since New in 1.2.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_prop_set2(const char *name,
                 const svn_string_t *value,
                 const char *path,
                 svn_wc_adm_access_t *adm_access,
                 svn_boolean_t skip_checks,
                 apr_pool_t *pool);


/**
 * Like svn_wc_prop_set2(), but with @a skip_checks always FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_prop_set(const char *name,
                const svn_string_t *value,
                const char *path,
                svn_wc_adm_access_t *adm_access,
                apr_pool_t *pool);


/** Return TRUE iff @a name is a 'normal' property name.  'Normal' is
 * defined as a user-visible and user-tweakable property that shows up
 * when you fetch a proplist.
 *
 * The function currently parses the namespace like so:
 *
 *   - 'svn:wc:'  ==>  a wcprop, stored/accessed separately via different API.
 *
 *   - 'svn:entry:' ==> an "entry" prop, shunted into the 'entries' file.
 *
 * If these patterns aren't found, then the property is assumed to be
 * Normal.
 */
svn_boolean_t
svn_wc_is_normal_prop(const char *name);



/** Return TRUE iff @a name is a 'wc' property name. */
svn_boolean_t
svn_wc_is_wc_prop(const char *name);

/** Return TRUE iff @a name is a 'entry' property name. */
svn_boolean_t
svn_wc_is_entry_prop(const char *name);

/** Callback type used by #svn_wc_canonicalize_svn_prop.
 *
 * If @a mime_type is non-null, it sets @a *mime_type to the value of
 * #SVN_PROP_MIME_TYPE for the path passed to
 * #svn_wc_canonicalize_svn_prop (allocated from @a pool).  If @a
 * stream is non-null, it writes the contents of the file to @a
 * stream.
 *
 * (Currently, this is used if you are attempting to set the
 * #SVN_PROP_EOL_STYLE property, to make sure that the value matches
 * the mime type and contents.)
 */
typedef svn_error_t *(*svn_wc_canonicalize_svn_prop_get_file_t)(
  const svn_string_t **mime_type,
  svn_stream_t *stream,
  void *baton,
  apr_pool_t *pool);


/** Canonicalize the value of an svn:* property @a propname with
 * value @a propval.
 *
 * If the property is not appropriate for a node of kind @a kind, or
 * is otherwise invalid, throw an error.  Otherwise, set @a *propval_p
 * to a canonicalized version of the property value.  If @a
 * skip_some_checks is TRUE, only some validity checks are taken.
 *
 * Some validity checks require access to the contents and MIME type
 * of the target if it is a file; they will call @a prop_getter with @a
 * getter_baton, which then needs to set the MIME type and print the
 * contents of the file to the given stream.
 *
 * @a path should be the path of the file in question; it is only used
 * for error messages.
 *
 * ### This is not actually related to the WC, but it does need to call
 * ### svn_wc_parse_externals_description2.
 */
svn_error_t *
svn_wc_canonicalize_svn_prop(const svn_string_t **propval_p,
                             const char *propname,
                             const svn_string_t *propval,
                             const char *path,
                             svn_node_kind_t kind,
                             svn_boolean_t skip_some_checks,
                             svn_wc_canonicalize_svn_prop_get_file_t prop_getter,
                             void *getter_baton,
                             apr_pool_t *pool);



/* Diffs */


/**
 * Return an @a editor/@a edit_baton for diffing a working copy against the
 * repository. The editor is allocated in @a result_pool; temporary
 * calculations are performed in @a scratch_pool.
 *
 * @a anchor_path/@a target represent the base of the hierarchy to be compared.
 *
 * @a callbacks/@a callback_baton is the callback table to use when two
 * files are to be compared.
 *
 * If @a depth is #svn_depth_empty, just diff exactly @a target or
 * @a anchor if @a target is empty.  If #svn_depth_files then do the same
 * and for top-level file entries as well (if any).  If
 * #svn_depth_immediates, do the same as #svn_depth_files but also diff
 * top-level subdirectories at #svn_depth_empty.  If #svn_depth_infinity,
 * then diff fully recursively.  In the latter case, @a anchor should be part
 * of an access baton set for the @a target hierarchy.
 *
 * @a ignore_ancestry determines whether paths that have discontinuous node
 * ancestry are treated as delete/add or as simple modifications.  If
 * @a ignore_ancestry is @c FALSE, then any discontinuous node ancestry will
 * result in the diff given as a full delete followed by an add.
 *
 * @a show_copies_as_adds determines whether paths added with history will
 * appear as a diff against their copy source, or whether such paths will
 * appear as if they were newly added in their entirety.
 *
 * If @a use_text_base is TRUE, then compare the repository against
 * the working copy's text-base files, rather than the working files.
 *
 * Normally, the difference from repository->working_copy is shown.
 * If @a reverse_order is TRUE, then show working_copy->repository diffs.
 *
 * If @a cancel_func is non-NULL, it will be used along with @a cancel_baton
 * to periodically check if the client has canceled the operation.
 *
 * @a changelists is an array of <tt>const char *</tt> changelist
 * names, used as a restrictive filter on items whose differences are
 * reported; that is, don't generate diffs about any item unless
 * it's a member of one of those changelists.  If @a changelists is
 * empty (or altogether @c NULL), no changelist filtering occurs.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_get_diff_editor6(const svn_delta_editor_t **editor,
                        void **edit_baton,
                        svn_wc_context_t *wc_ctx,
                        const char *anchor_path,
                        const char *target,
                        const svn_wc_diff_callbacks4_t *callbacks,
                        void *callback_baton,
                        svn_depth_t depth,
                        svn_boolean_t ignore_ancestry,
                        svn_boolean_t show_copies_as_adds,
                        svn_boolean_t use_text_base,
                        svn_boolean_t reverse_order,
                        const apr_array_header_t *changelists,
                        svn_cancel_func_t cancel_func,
                        void *cancel_baton,
                        apr_pool_t *result_pool,
                        apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_get_diff_editor6(), but with an
 * #svn_wc_diff_callbacks3_t instead of #svn_wc_diff_callbacks4_t,
 * and @a show_copies_as_adds set to @c FALSE.
 *
 * @since New in 1.6.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_diff_editor5(svn_wc_adm_access_t *anchor,
                        const char *target,
                        const svn_wc_diff_callbacks3_t *callbacks,
                        void *callback_baton,
                        svn_depth_t depth,
                        svn_boolean_t ignore_ancestry,
                        svn_boolean_t use_text_base,
                        svn_boolean_t reverse_order,
                        svn_cancel_func_t cancel_func,
                        void *cancel_baton,
                        const apr_array_header_t *changelists,
                        const svn_delta_editor_t **editor,
                        void **edit_baton,
                        apr_pool_t *pool);

/**
 * Similar to svn_wc_get_diff_editor5(), but with an
 * #svn_wc_diff_callbacks2_t instead of #svn_wc_diff_callbacks3_t.
 *
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_diff_editor4(svn_wc_adm_access_t *anchor,
                        const char *target,
                        const svn_wc_diff_callbacks2_t *callbacks,
                        void *callback_baton,
                        svn_depth_t depth,
                        svn_boolean_t ignore_ancestry,
                        svn_boolean_t use_text_base,
                        svn_boolean_t reverse_order,
                        svn_cancel_func_t cancel_func,
                        void *cancel_baton,
                        const apr_array_header_t *changelists,
                        const svn_delta_editor_t **editor,
                        void **edit_baton,
                        apr_pool_t *pool);

/**
 * Similar to svn_wc_get_diff_editor4(), but with @a changelists
 * passed as @c NULL, and @a depth set to #svn_depth_infinity if @a
 * recurse is TRUE, or #svn_depth_files if @a recurse is FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.4 API.

 * @since New in 1.2.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_diff_editor3(svn_wc_adm_access_t *anchor,
                        const char *target,
                        const svn_wc_diff_callbacks2_t *callbacks,
                        void *callback_baton,
                        svn_boolean_t recurse,
                        svn_boolean_t ignore_ancestry,
                        svn_boolean_t use_text_base,
                        svn_boolean_t reverse_order,
                        svn_cancel_func_t cancel_func,
                        void *cancel_baton,
                        const svn_delta_editor_t **editor,
                        void **edit_baton,
                        apr_pool_t *pool);


/**
 * Similar to svn_wc_get_diff_editor3(), but with an
 * #svn_wc_diff_callbacks_t instead of #svn_wc_diff_callbacks2_t.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_diff_editor2(svn_wc_adm_access_t *anchor,
                        const char *target,
                        const svn_wc_diff_callbacks_t *callbacks,
                        void *callback_baton,
                        svn_boolean_t recurse,
                        svn_boolean_t ignore_ancestry,
                        svn_boolean_t use_text_base,
                        svn_boolean_t reverse_order,
                        svn_cancel_func_t cancel_func,
                        void *cancel_baton,
                        const svn_delta_editor_t **editor,
                        void **edit_baton,
                        apr_pool_t *pool);


/**
 * Similar to svn_wc_get_diff_editor2(), but with @a ignore_ancestry
 * always set to @c FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_diff_editor(svn_wc_adm_access_t *anchor,
                       const char *target,
                       const svn_wc_diff_callbacks_t *callbacks,
                       void *callback_baton,
                       svn_boolean_t recurse,
                       svn_boolean_t use_text_base,
                       svn_boolean_t reverse_order,
                       svn_cancel_func_t cancel_func,
                       void *cancel_baton,
                       const svn_delta_editor_t **editor,
                       void **edit_baton,
                       apr_pool_t *pool);


/**
 * Compare working copy against the text-base.
 *
 * @a target_path represents the base of the hierarchy to be compared.
 *
 * @a callbacks/@a callback_baton is the callback table to use when two
 * files are to be compared.
 *
 * If @a depth is #svn_depth_empty, just diff exactly @a target or
 * @a anchor if @a target is empty.  If #svn_depth_files then do the same
 * and for top-level file entries as well (if any).  If
 * #svn_depth_immediates, do the same as #svn_depth_files but also diff
 * top-level subdirectories at #svn_depth_empty.  If #svn_depth_infinity,
 * then diff fully recursively.  In the latter case, @a anchor should be part
 * of an access baton set for the @a target hierarchy.
 *
 * @a ignore_ancestry determines whether paths that have discontinuous node
 * ancestry are treated as delete/add or as simple modifications.  If
 * @a ignore_ancestry is @c FALSE, then any discontinuous node ancestry will
 * result in the diff given as a full delete followed by an add.
 *
 * @a show_copies_as_adds determines whether paths added with history will
 * appear as a diff against their copy source, or whether such paths will
 * appear as if they were newly added in their entirety.
 *
 * @a changelists is an array of <tt>const char *</tt> changelist
 * names, used as a restrictive filter on items whose differences are
 * reported; that is, don't generate diffs about any item unless
 * it's a member of one of those changelists.  If @a changelists is
 * empty (or altogether @c NULL), no changelist filtering occurs.
 *
 * If @a cancel_func is non-NULL, invoke it with @a cancel_baton at various
 * points during the operation.  If it returns an error (typically
 * #SVN_ERR_CANCELLED), return that error immediately.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_diff6(svn_wc_context_t *wc_ctx,
             const char *target_path,
             const svn_wc_diff_callbacks4_t *callbacks,
             void *callback_baton,
             svn_depth_t depth,
             svn_boolean_t ignore_ancestry,
             svn_boolean_t show_copies_as_adds,
             const apr_array_header_t *changelists,
             svn_cancel_func_t cancel_func,
             void *cancel_baton,
             apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_diff6(), but with a #svn_wc_diff_callbacks3_t argument
 * instead of #svn_wc_diff_callbacks4_t, and @a show_copies_as_adds set to
 * @c FALSE. It also doesn't allow specifying a cancel function.
 *
 * @since New in 1.6.
 *
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_diff5(svn_wc_adm_access_t *anchor,
             const char *target,
             const svn_wc_diff_callbacks3_t *callbacks,
             void *callback_baton,
             svn_depth_t depth,
             svn_boolean_t ignore_ancestry,
             const apr_array_header_t *changelists,
             apr_pool_t *pool);

/**
 * Similar to svn_wc_diff5(), but with a #svn_wc_diff_callbacks2_t argument
 * instead of #svn_wc_diff_callbacks3_t.
 *
 * @deprecated Provided for backward compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_diff4(svn_wc_adm_access_t *anchor,
             const char *target,
             const svn_wc_diff_callbacks2_t *callbacks,
             void *callback_baton,
             svn_depth_t depth,
             svn_boolean_t ignore_ancestry,
             const apr_array_header_t *changelists,
             apr_pool_t *pool);

/**
 * Similar to svn_wc_diff4(), but with @a changelists passed @c NULL,
 * and @a depth set to #svn_depth_infinity if @a recurse is TRUE, or
 * #svn_depth_files if @a recurse is FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.2 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_diff3(svn_wc_adm_access_t *anchor,
             const char *target,
             const svn_wc_diff_callbacks2_t *callbacks,
             void *callback_baton,
             svn_boolean_t recurse,
             svn_boolean_t ignore_ancestry,
             apr_pool_t *pool);

/**
 * Similar to svn_wc_diff3(), but with a #svn_wc_diff_callbacks_t argument
 * instead of #svn_wc_diff_callbacks2_t.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_diff2(svn_wc_adm_access_t *anchor,
             const char *target,
             const svn_wc_diff_callbacks_t *callbacks,
             void *callback_baton,
             svn_boolean_t recurse,
             svn_boolean_t ignore_ancestry,
             apr_pool_t *pool);

/**
 * Similar to svn_wc_diff2(), but with @a ignore_ancestry always set
 * to @c FALSE.
 *
 * @deprecated Provided for backward compatibility with the 1.0 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_diff(svn_wc_adm_access_t *anchor,
            const char *target,
            const svn_wc_diff_callbacks_t *callbacks,
            void *callback_baton,
            svn_boolean_t recurse,
            apr_pool_t *pool);


/** Given a @a local_abspath to a file or directory under version control,
 * discover any local changes made to properties and/or the set of 'pristine'
 * properties.  @a wc_ctx will be used to access the working copy.
 *
 * If @a propchanges is non-@c NULL, return these changes as an array of
 * #svn_prop_t structures stored in @a *propchanges.  The structures and
 * array will be allocated in @a result_pool.  If there are no local property
 * modifications on @a local_abspath, then set @a *propchanges will be empty.
 *
 * If @a original_props is non-@c NULL, then set @a *original_props to
 * hashtable (<tt>const char *name</tt> -> <tt>const svn_string_t *value</tt>)
 * that represents the 'pristine' property list of @a path.  This hashtable is
 * allocated in @a result_pool.
 *
 * Use @a scratch_pool for temporary allocations.
 */
svn_error_t *
svn_wc_get_prop_diffs2(apr_array_header_t **propchanges,
                       apr_hash_t **original_props,
                       svn_wc_context_t *wc_ctx,
                       const char *local_abspath,
                       apr_pool_t *result_pool,
                       apr_pool_t *scratch_pool);

/** Similar to svn_wc_get_prop_diffs2(), but with a #svn_wc_adm_access_t /
 * relative path parameter pair.
 *
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_prop_diffs(apr_array_header_t **propchanges,
                      apr_hash_t **original_props,
                      const char *path,
                      svn_wc_adm_access_t *adm_access,
                      apr_pool_t *pool);


/** The outcome of a merge carried out (or tried as a dry-run) by
 * svn_wc_merge()
 */
typedef enum svn_wc_merge_outcome_t
{
   /** The working copy is (or would be) unchanged.  The changes to be
    * merged were already present in the working copy
    */
   svn_wc_merge_unchanged,

   /** The working copy has been (or would be) changed. */
   svn_wc_merge_merged,

   /** The working copy has been (or would be) changed, but there was (or
    * would be) a conflict
    */
   svn_wc_merge_conflict,

   /** No merge was performed, probably because the target file was
    * either absent or not under version control.
    */
   svn_wc_merge_no_merge

} svn_wc_merge_outcome_t;

/** Given absolute paths to three fulltexts, merge the differences between
 * @a left_abspath and @a right_abspath into @a target_abspath.
 * It may help to know that @a left_abspath, @a right_abspath and @a
 * target_abspath correspond to "OLDER", "YOURS", and "MINE",
 * respectively, in the diff3 documentation.)  Use @a scratch_pool for any
 * temporary allocation.
 *
 * @a wc_ctx should contain a write lock for the directory containing @a
 * merge_target.
 *
 * This function assumes that @a left_abspath and @a right_abspath are
 * in repository-normal form (linefeeds, with keywords contracted); if
 * necessary, @a target_abspath is temporarily converted to this form to
 * receive the changes, then translated back again.
 *
 * If @a target_abspath is absent, or present but not under version
 * control, then set @a *merge_outcome to #svn_wc_merge_no_merge and
 * return success without merging anything.  (The reasoning is that if
 * the file is not versioned, then it is probably unrelated to the
 * changes being considered, so they should not be merged into it.)
 *
 * @a dry_run determines whether the working copy is modified.  When it
 * is @c FALSE the merge will cause @a target_abspath to be modified, when
 * it is @c TRUE the merge will be carried out to determine the result but
 * @a target_abspath will not be modified.
 *
 * If @a diff3_cmd is non-NULL, then use it as the diff3 command for
 * any merging; otherwise, use the built-in merge code.  If @a
 * merge_options is non-NULL, either pass its elements to @a diff3_cmd or
 * parse it and use as options to the internal merge code (see
 * svn_diff_file_options_parse()).  @a merge_options must contain
 * <tt>const char *</tt> elements.
 *
 * The outcome of the merge is returned in @a *merge_outcome. If there
 * is a conflict and @a dry_run is @c FALSE, then attempt to call @a
 * conflict_func with @a conflict_baton (if non-NULL).  If the
 * conflict callback cannot resolve the conflict, then:
 *
 *   * Put conflict markers around the conflicting regions in
 *     @a target_abspath, labeled with @a left_label, @a right_label, and
 *     @a target_label.  (If any of these labels are @c NULL, default
 *     values will be used.)
 *
 *   * Copy @a left_abspath, @a right_abspath, and the original @a
 *     target_abspath to unique names in the same directory as @a
 *     merge_target, ending with the suffixes ".LEFT_LABEL", ".RIGHT_LABEL",
 *     and ".TARGET_LABEL" respectively.
 *
 *   * Mark @a target_abspath as "text-conflicted", and track the above
 *     mentioned backup files as well.
 *
 *   * If @a left_version and/or @a right_version are not NULL, provide
 *     these values to the conflict handler and track these while the conflict
 *     exists.
 *
 * Binary case:
 *
 *  If @a target_abspath is a binary file, then no merging is attempted,
 *  the merge is deemed to be a conflict.  If @a dry_run is @c FALSE the
 *  working @a target_abspath is untouched, and copies of @a left_abspath and
 *  @a right_abspath are created next to it using @a left_label and
 *  @a right_label. @a target_abspath is marked as "text-conflicted", and
 *  begins tracking the two backup files and the version information.
 *
 * If @a dry_run is @c TRUE no files are changed.  The outcome of the merge
 * is returned in @a *merge_outcome.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_merge4(enum svn_wc_merge_outcome_t *merge_outcome,
              svn_wc_context_t *wc_ctx,
              const char *left_abspath,
              const char *right_abspath,
              const char *target_abspath,
              const char *left_label,
              const char *right_label,
              const char *target_label,
              const svn_wc_conflict_version_t *left_version,
              const svn_wc_conflict_version_t *right_version,
              svn_boolean_t dry_run,
              const char *diff3_cmd,
              const apr_array_header_t *merge_options,
              const apr_array_header_t *prop_diff,
              svn_wc_conflict_resolver_func_t conflict_func,
              void *conflict_baton,
              svn_cancel_func_t cancel_func,
              void *cancel_baton,
              apr_pool_t *scratch_pool);

/** Similar to svn_wc_merge4() but takes relative paths and an access
 * baton. It doesn't support a cancel function or tracking origin version
 * information.
 *
 * @since New in 1.5.
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge3(enum svn_wc_merge_outcome_t *merge_outcome,
              const char *left,
              const char *right,
              const char *merge_target,
              svn_wc_adm_access_t *adm_access,
              const char *left_label,
              const char *right_label,
              const char *target_label,
              svn_boolean_t dry_run,
              const char *diff3_cmd,
              const apr_array_header_t *merge_options,
              const apr_array_header_t *prop_diff,
              svn_wc_conflict_resolver_func_t conflict_func,
              void *conflict_baton,
              apr_pool_t *pool);


/** Similar to svn_wc_merge3(), but with @a prop_diff, @a
 * conflict_func, @a conflict_baton set to NULL.
 *
 * @deprecated Provided for backwards compatibility with the 1.4 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge2(enum svn_wc_merge_outcome_t *merge_outcome,
              const char *left,
              const char *right,
              const char *merge_target,
              svn_wc_adm_access_t *adm_access,
              const char *left_label,
              const char *right_label,
              const char *target_label,
              svn_boolean_t dry_run,
              const char *diff3_cmd,
              const apr_array_header_t *merge_options,
              apr_pool_t *pool);


/** Similar to svn_wc_merge2(), but with @a merge_options set to NULL.
 *
 * @deprecated Provided for backwards compatibility with the 1.3 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge(const char *left,
             const char *right,
             const char *merge_target,
             svn_wc_adm_access_t *adm_access,
             const char *left_label,
             const char *right_label,
             const char *target_label,
             svn_boolean_t dry_run,
             enum svn_wc_merge_outcome_t *merge_outcome,
             const char *diff3_cmd,
             apr_pool_t *pool);


/** Given a @a local_abspath under version control, merge an array of @a
 * propchanges into the path's existing properties.  @a propchanges is
 * an array of #svn_prop_t objects, and @a baseprops is a hash
 * representing the original set of properties that @a propchanges is
 * working against.  @a wc_ctx contains a lock for @a local_abspath.
 *
 * If @a base_merge is @c FALSE only the working properties will be changed,
 * if it is @c TRUE both the base and working properties will be changed.
 *
 * If @a state is non-NULL, set @a *state to the state of the properties
 * after the merge.
 *
 * If conflicts are found when merging working properties, they are
 * described in a temporary .prej file (or appended to an already-existing
 * .prej file), and the entry is marked "conflicted".  Base properties
 * are changed unconditionally, if @a base_merge is @c TRUE, they never result
 * in a conflict.
 *
 * If @a cancel_func is non-NULL, invoke it with @a cancel_baton at various
 * points during the operation.  If it returns an error (typically
 * #SVN_ERR_CANCELLED), return that error immediately.
 *
 * If @a local_abspath is not under version control, return the error
 * #SVN_ERR_UNVERSIONED_RESOURCE and don't touch anyone's properties.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_merge_props3(svn_wc_notify_state_t *state,
                    svn_wc_context_t *wc_ctx,
                    const char *local_abspath,
                    const svn_wc_conflict_version_t *left_version,
                    const svn_wc_conflict_version_t *right_version,
                    apr_hash_t *baseprops,
                    const apr_array_header_t *propchanges,
                    svn_boolean_t base_merge,
                    svn_boolean_t dry_run,
                    svn_wc_conflict_resolver_func_t conflict_func,
                    void *conflict_baton,
                    svn_cancel_func_t cancel_func,
                    void *cancel_baton,
                    apr_pool_t *scratch_pool);

/** Similar to svn_wc_merge_props3, but takes an access baton and relative
 * path, no cancel_function and no left and right version.
 *
 * @since New in 1.5.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge_props2(svn_wc_notify_state_t *state,
                    const char *path,
                    svn_wc_adm_access_t *adm_access,
                    apr_hash_t *baseprops,
                    const apr_array_header_t *propchanges,
                    svn_boolean_t base_merge,
                    svn_boolean_t dry_run,
                    svn_wc_conflict_resolver_func_t conflict_func,
                    void *conflict_baton,
                    apr_pool_t *pool);


/**
 * Same as svn_wc_merge_props2(), but with a @a conflict_func (and
 * baton) of NULL.
 *
 * @deprecated Provided for backward compatibility with the 1.3 API.
 *
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge_props(svn_wc_notify_state_t *state,
                   const char *path,
                   svn_wc_adm_access_t *adm_access,
                   apr_hash_t *baseprops,
                   const apr_array_header_t *propchanges,
                   svn_boolean_t base_merge,
                   svn_boolean_t dry_run,
                   apr_pool_t *pool);


/**
 * Similar to svn_wc_merge_props(), but no baseprops are given.
 * Instead, it's assumed that the incoming propchanges are based
 * against the working copy's own baseprops.  While this assumption is
 * correct for 'svn update', it's incorrect for 'svn merge', and can
 * cause flawed behavior.  (See issue #2035.)
 *
 * @deprecated Provided for backward compatibility with the 1.2 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_merge_prop_diffs(svn_wc_notify_state_t *state,
                        const char *path,
                        svn_wc_adm_access_t *adm_access,
                        const apr_array_header_t *propchanges,
                        svn_boolean_t base_merge,
                        svn_boolean_t dry_run,
                        apr_pool_t *pool);


/** Given a @a path to a wc file, return in @a *contents a readonly stream to
 * the pristine contents of the file that would serve as base content for the
 * next commit. That means:
 *
 * When there is no change in node history scheduled, i.e. when there are only
 * local text-mods, prop-mods or a delete, return the last checked-out or
 * updated-/switched-to contents of the file.
 *
 * If the file is simply added or replaced (no copy-/move-here involved),
 * set @a *contents to @c NULL.
 *
 * When the file has been locally copied-/moved-here, return the contents of
 * the copy/move source (even if the copy-/move-here replaces a locally
 * deleted file).
 *
 * If @local_abspath refers to an unversioned or non-existing path, return
 * @c SVN_ERR_WC_PATH_NOT_FOUND. Use @a wc_ctx to access the working copy.
 * @a contents may not be @c NULL (unlike @a *contents).
 *
 * @since New in 1.7. */
svn_error_t *
svn_wc_get_pristine_contents2(svn_stream_t **contents,
                              svn_wc_context_t *wc_ctx,
                              const char *local_abspath,
                              apr_pool_t *result_pool,
                              apr_pool_t *scratch_pool);

/** Similar to svn_wc_get_pristine_contents2, but takes no working copy
 * context and a path that can be relative
 *
 * @since New in 1.6.
 * @deprecated Provided for backward compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_pristine_contents(svn_stream_t **contents,
                             const char *path,
                             apr_pool_t *result_pool,
                             apr_pool_t *scratch_pool);


/** Returns a path to the pristine copy of @a path. Should use
 * svn_wc_get_pristine_contents() instead.
 *
 * @deprecated Provided for backwards compatibility with the 1.5 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_get_pristine_copy_path(const char *path,
                              const char **pristine_path,
                              apr_pool_t *pool);


/**
 * Recurse from @a local_abspath, cleaning up unfinished log business.  Perform
 * any temporary allocations in @a scratch_pool.  Any working copy locks under
 * @a local_abspath will be taken over and then cleared by this function.
 *
 * WARNING: there is no mechanism that will protect locks that are still being
 * used.
 *
 * If @a cancel_func is non-NULL, invoke it with @a cancel_baton at various
 * points during the operation.  If it returns an error (typically
 * #SVN_ERR_CANCELLED), return that error immediately.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_cleanup3(svn_wc_context_t *wc_ctx,
                const char *local_abspath,
                svn_cancel_func_t cancel_func,
                void *cancel_baton,
                apr_pool_t *scratch_pool);

/**
 * Similar to svn_wc_cleanup3() but uses relative paths and creates its own
 * swn_wc_context_t.
 *
 * @since New in 1.2.
 * @deprecated Provided for backward compability with the 1.2 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_cleanup2(const char *path,
                const char *diff3_cmd,
                svn_cancel_func_t cancel_func,
                void *cancel_baton,
                apr_pool_t *pool);

/**
 * Similar to svn_wc_cleanup2(). @a optional_adm_access is an historic
 * relic and not used, it may be NULL.
 *
 * @deprecated Provided for backward compatibility with the 1.1 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_cleanup(const char *path,
               svn_wc_adm_access_t *optional_adm_access,
               const char *diff3_cmd,
               svn_cancel_func_t cancel_func,
               void *cancel_baton,
               apr_pool_t *pool);

/** Callback for retrieving a repository root for a url from upgrade.
 *
 * Called by svn_wc_upgrade() when no repository root and/or repository
 * uuid are recorded in the working copy. For normal Subversion 1.5 and
 * later working copies, this callback will not be used.
 *
 * @since New in 1.7.
 */
typedef svn_error_t * (*svn_wc_upgrade_get_repos_info_t)(
                                    const char **repos_root,
                                    const char **repos_uuid,
                                    void *baton,
                                    const char *url,
                                    apr_pool_t *scratch_pool,
                                    apr_pool_t *result_pool);

/**
 * Upgrade the working copy at @a local_abspath to the latest metadata
 * storage format.  @a local_abspath should be an absolute path to the
 * root of the working copy.
 *
 * If @a cancel_func is non-NULL, invoke it with @a cancel_baton at
 * various points during the operation.  If it returns an error
 * (typically #SVN_ERR_CANCELLED), return that error immediately.
 *
 * For each directory converted, @a notify_func will be called with
 * in @a notify_baton action @a svn_wc_notify_upgrade_path and as path
 * the path of the upgraded directory. @a notify_func may be @c NULL
 * if this notification is not needed.
 *
 * If the old working copy doesn't contain a repository root and/or
 * repository uuid, @a repos_info_func (if non-NULL) will be called
 * with @a repos_info_baton to provide the missing information.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_upgrade(svn_wc_context_t *wc_ctx,
               const char *local_abspath,
               svn_wc_upgrade_get_repos_info_t repos_info_func,
               void *repos_info_baton,
               svn_cancel_func_t cancel_func,
               void *cancel_baton,
               svn_wc_notify_func2_t notify_func,
               void *notify_baton,
               apr_pool_t *pool);

/** Relocation validation callback typedef.
 *
 * Called for each relocated file/directory.  @a uuid, if non-NULL, contains
 * the expected repository UUID, @a url contains the tentative URL.
 *
 * @a baton is a closure object; it should be provided by the
 * implementation, and passed by the caller.
 *
 * If @a root is TRUE, then the implementation should make sure that @a url
 * is the repository root.  Else, it can be an URL inside the repository.
 * @a pool may be used for temporary allocations.
 *
 * @since New in 1.5.
 */
typedef svn_error_t *(*svn_wc_relocation_validator3_t)(void *baton,
                                                       const char *uuid,
                                                       const char *url,
                                                       const char *root_url,
                                                       apr_pool_t *pool);

/** Similar to #svn_wc_relocation_validator3_t, but without
 * the @a root_url arguments.
 *
 * @deprecated Provided for backwards compatibility with the 1.4 API.
 */
typedef svn_error_t *(*svn_wc_relocation_validator2_t)(void *baton,
                                                       const char *uuid,
                                                       const char *url,
                                                       svn_boolean_t root,
                                                       apr_pool_t *pool);

/** Similar to #svn_wc_relocation_validator2_t, but without
 * the @a root and @a pool arguments.  @a uuid will not be NULL in this version
 * of the function.
 *
 * @deprecated Provided for backwards compatibility with the 1.3 API.
 */
typedef svn_error_t *(*svn_wc_relocation_validator_t)(void *baton,
                                                      const char *uuid,
                                                      const char *url);

/** Change repository references at @a local_abspath and all it's children.
 * The pre-change URL should be @a from, and the post-change URL will be
 * @a to.  @a validator (and its baton, @a validator_baton), will be called
 * for the newly generated base URL and calculated repo root.
 *
 * If @a recurse is @c FALSE, none of the children of @a local_abspath will
 * be changed.  @a wc_ctx is an working copy context.
 *
 * @a scratch_pool will be used for temporary allocations.
 *
 * @since New in 1.7.
 */
svn_error_t *
svn_wc_relocate4(svn_wc_context_t *wc_ctx,
                 const char *local_abspath,
                 const char *from,
                 const char *to,
                 svn_boolean_t recurse,
                 svn_wc_relocation_validator3_t validator,
                 void *validator_baton,
                 apr_pool_t *scratch_pool);

/** Similar to svn_wc_relocate4(), but with a #svn_wc_adm_access_t /
 * relative path parameter pair.
 *
 * @since New in 1.5.
 * @deprecated Provided for backwards compatibility with the 1.6 API.
 */
SVN_DEPRECATED
svn_error_t *
svn_wc_relocate3(const char *path,
                 svn_wc_adm_access_t *adm_access,
                 const char *from,
                 const char *to,
                 svn_boolean_t recurse,
                 svn_wc_relocation_validator3_t validator,
                 void *validator_baton,
                 apr_pool_t *pool);

/** Similar to svn_wc_relocate3(), but uses #svn_wc_relocation_validator2_t.
 *
 * @since New in 1.4.
 * @deprecated Provided for backwards compatibility with the 1.4 API. */
SVN_DEPRECATED
svn_error_t *
svn_wc_relocate2(const char *path,
                 svn_wc_adm_access_t *adm_access,
                 const char *from,
                 const char *to,
                 svn_boolean_t recurse,
                 svn_wc_relocation_validator2_t validator,
                 void *validator_baton,
                 apr_pool_t *pool);

/** Similar to svn_wc_relocate2(), but uses #svn_wc_relocation_validator_t.
 *
 * @deprecated Provided for backwards compatibility with the 1.3 API. */
SVN_DEPRECATED
svn_error_t *
svn_wc_relocate(const char *path,
                svn_wc_adm_access_t *adm_access,
                const char *from,
                const char *to,
                svn_boolean_t recurse,
                svn_wc_relocation_validator_t validator,
                void *validator_baton,
                apr_pool_t *pool);


/**
 * Revert changes to @a local_abspath.  Perform necessary allocations in
 * @a scratch_pool.
 *
 * @a wc_ctx contains the necessary locks required for performing the
 * operation.
 *
 * If @a depth is #svn_depth_empty, revert just @a path (if a
 * directory, then revert just the properties on that directory).
 * Else if #svn_depth_files, revert @a path and any files
 * directly under @a path if it is directory.  Else if
 * #svn_depth_immediates, revert all of the preceding plus
 * properties on immediate subdirectories; else if #svn_depth_infinity,
 * revert path and everything under it fully recursively.
 *
 * @a changelists is an array of <tt>const char *</tt> changelist
 * names, used as a restrictive filter on items reverted; that is,
 * don't revert any item unless it's a member of one of those