#!/usr/bin/env python
#
# gen-make.py -- generate makefiles for building Subversion
#
# USAGE:
#    gen-make.py [-s] [BUILD-CONFIG]
#

import os
import sys
import getopt


# for the generator modules
sys.path.insert(0, os.path.join('build', 'generator'))

# for getversion
sys.path.insert(1, 'build')


gen_modules = {
  'make' : ('gen_make', 'Makefiles for POSIX systems'),
  'dsp' : ('gen_msvc_dsp', 'MSVC 6.x project files'),
  'nmake-msvc' : ('gen_msvc_nmake', '### need description'),
  'mingw' : ('gen_mingw', 'Makefiles for mingw'),
  'vcproj' : ('gen_vcnet_vcproj', 'VC.Net project files'),
  'nmake-vcnet' : ('gen_vcnet_nmake', '### need description'),
  'bpr' : ('gen_bcpp_bpr', '### need description'),
  'make-bcpp' : ('gen_bcpp_make', '### need description'),
  }

def main(fname, gentype, verfname=None, oname=None,
         skip_depends=0, other_options=None):
  if verfname is None:
    verfname = os.path.join('subversion', 'include', 'svn_version.h')

  try:
    gen_module = __import__(gen_modules[gentype][0])
  except ImportError:
    print 'ERROR: the "%s" generator is not yet implemented.' % gentype
    sys.exit(1)

  generator = gen_module.Generator(fname, verfname, other_options)
  if not skip_depends:
    generator.compute_hdr_deps()

  if oname is None:
    oname = generator.default_output(fname)

  generator.write(oname)


def _usage_exit():
  "print usage, exit the script"
  print "USAGE:  gen-make.py [-s] [-t TYPE] [conf-file]"
  print "  -s  skip dependency generation"
  print "  -t  use the TYPE generator; can be one of:"
  items = gen_modules.items()
  items.sort()
  for name, (module, desc) in items:
    print '      %-12s  %s' % (name, desc)
  print
  print "      The default generator type is 'make'"
  sys.exit(0)

if __name__ == '__main__':
  try:
    opts, args = getopt.getopt(sys.argv[1:], 'st:',
                               ['with-httpd='])
    if len(args) > 1:
      _usage_exit()
  except getopt.GetoptError:
    _usage_exit()

  conf = 'build.conf'
  skip = 0
  gentype = 'make'
  rest = []

  if args:
    conf = args[0]

  for opt, val in opts:
    if opt == '-s':
      skip = 1
    elif opt == '-t':
      gentype = val
    else:
      rest.append((opt, val))

  if gentype not in gen_modules.keys():
    _usage_exit()

  main(conf, gentype, skip_depends=skip, other_options=rest)


### End of file.