bh@0: # Copyright (C) 2007 by Intevation GmbH
bh@0: # Authors:
bh@0: # Bernhard Herzog <bh@intevation.de>
bh@0: #
bh@0: # This program is free software under the GPL (>=v2)
bh@0: # Read the file COPYING coming with the software for details.
bh@0: 
bh@0: """Reads the configuration file"""
bh@0: 
bh@0: import sys
bh@2: import shlex
bh@0: from ConfigParser import SafeConfigParser, NoOptionError
bh@0: 
bh@4: import util
bh@4: 
bh@0: defaults = dict(root_cmd="sudo")
bh@0: 
bh@2: packager_desc = [
bh@4:     "name", "base_dir", "svn_url", "packager_class",
bh@47:     ("root_cmd", shlex.split), "pbuilderrc",
bh@2:     "deb_email", "deb_fullname",
bh@2:     ]
bh@2: 
bh@2: treepkg_desc = [
bh@2:     ("check_interval", int),
bh@2:     ]
bh@2: 
bh@2: 
bh@2: def read_config_section(parser, section, item_desc, defaults=None):
bh@2:     if defaults is None:
bh@2:         defaults = dict()
bh@2:     options = dict()
bh@2:     for item in item_desc:
bh@2:         if isinstance(item, tuple):
bh@2:             key, converter = item
bh@2:         else:
bh@2:             key = item
bh@2:             converter = str
bh@2:         try:
bh@2:             value = parser.get(section, key, vars=defaults)
bh@2:             options[key] = converter(value)
bh@2:         except NoOptionError:
bh@17:             print >>sys.stderr, "Missing option %r in section %r" \
bh@17:                   % (key, section)
bh@2:             sys.exit(1)
bh@2:     return options
bh@0: 
bh@0: 
bh@0: def read_config(filename):
bh@2:     """Reads the tree packager configuration from the file given by filename.
bh@0: 
bh@2:     The function returns a tuple with a ('treepkg') and a list of dicts
bh@2:     ('packagers').  The treepkg dict contains the main configuration of
bh@2:     the tree packager.  The packagers list contains one dict with the
bh@2:     configuratiin for each packager.
bh@0:     """
bh@0:     parser = SafeConfigParser(defaults)
bh@0:     parser.read([filename])
bh@2: 
bh@2:     # extract packager configurations
bh@2:     packagers = []
bh@0:     for section in parser.sections():
bh@0:         if section.startswith("pkg_"):
bh@4:             packager_class = parser.get(section, "packager_class")
bh@4:             module = util.import_dotted_name(packager_class)
bh@52:             desc = packager_desc + module.PackageTrack.extra_config_desc
bh@4:             packagers.append(read_config_section(parser, section, desc,
bh@2:                                                  dict(name=section[4:])))
bh@0: 
bh@2:     # main config
bh@2:     treepkg = read_config_section(parser, "treepkg", treepkg_desc)
bh@0: 
bh@2:     return treepkg, packagers
bh@0: 
bh@0: 
bh@0: if __name__ == "__main__":
bh@2:     import pprint
bh@2:     print pprint.pprint(read_config(sys.argv[1]))