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Python Source  |  2006-08-24  |  5.2 KB  |  150 lines
  1. #!/usr/bin/env python
  2. # DistInfo.py - simple parser for a xml-based metainfo file
  3. #  
  4. #  Copyright (c) 2005 Gustavo Noronha Silva
  5. #  
  6. #  Author: Gustavo Noronha Silva <kov@debian.org>
  7. # 
  8. #  This program is free software; you can redistribute it and/or 
  9. #  modify it under the terms of the GNU General Public License as 
  10. #  published by the Free Software Foundation; either version 2 of the
  11. #  License, or (at your option) any later version.
  12. # 
  13. #  This program is distributed in the hope that it will be useful,
  14. #  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. #  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16. #  GNU General Public License for more details.
  17. # 
  18. #  You should have received a copy of the GNU General Public License
  19. #  along with this program; if not, write to the Free Software
  20. #  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21. #  USA
  22.  
  23. import os
  24. import gettext
  25. from os import getenv
  26. import ConfigParser
  27.  
  28. _ = gettext.gettext
  29.  
  30. class Suite:
  31.     def __init__(self):
  32.         self.name = None
  33.         self.child = False
  34.         self.match_name = None
  35.         self.description = None
  36.         self.base_uri = None
  37.         self.type = None
  38.         self.components = {}
  39.         self.children = []
  40.         self.match_uri = None
  41.         self.distribution = None
  42.         self.available = True
  43.  
  44. class Component:
  45.     def __init__(self):
  46.         self.name = ""
  47.         self.description = ""
  48.         self.description_long = ""
  49.         self.enabled = None
  50.  
  51. class DistInfo:
  52.     def __init__(self,
  53.                  dist = None,
  54.                  base_dir = "/usr/share/update-manager/channels"):
  55.         self.metarelease_uri = ''
  56.         self.suites = []
  57.  
  58.         if not dist:
  59.             pipe = os.popen("lsb_release -i -s")
  60.             dist = pipe.read().strip()
  61.             pipe.close()
  62.             del pipe
  63.  
  64.         self.dist = dist
  65.  
  66.         dist_fname = "%s/%s.info" % (base_dir, dist)
  67.         dist_file = open (dist_fname)
  68.         if not dist_file:
  69.             return
  70.         suite = None
  71.         component = None
  72.         for line in dist_file:
  73.             tokens = line.split (':', 1)
  74.             if len (tokens) < 2:
  75.                 continue
  76.             field = tokens[0].strip ()
  77.             value = tokens[1].strip ()
  78.             if field == 'ChangelogURI':
  79.                 self.changelogs_uri = _(value)
  80.             elif field == 'MetaReleaseURI':
  81.                 self.metarelease_uri = value
  82.             elif field == 'Suite':
  83.                 if suite:
  84.                     if component:
  85.                         suite.components["%s" % component.name] = \
  86.                             (component.description, component.enabled,
  87.                              component.description_long)
  88.                         component = None
  89.                     self.suites.append (suite)
  90.                 suite = Suite ()
  91.                 suite.name = value
  92.                 suite.distribution = dist
  93.                 suite.match_name = "^%s$" % value
  94.             elif field == 'MatchName':
  95.                 suite.match_name = value
  96.             elif field == 'ParentSuite':
  97.                 suite.child = True
  98.                 for nanny in self.suites:
  99.                     if nanny.name == value:
  100.                         nanny.children.append(suite)
  101.             elif field == 'Available':
  102.                 suite.available = value
  103.             elif field == 'RepositoryType':
  104.                 suite.type = value
  105.             elif field == 'BaseURI':
  106.                 suite.base_uri = value
  107.                 suite.match_uri = value
  108.             elif field == 'MatchURI':
  109.                 suite.match_uri = value
  110.             elif field == 'Description':
  111.                 suite.description = _(value)
  112.             elif field == 'Component':
  113.                 if component:
  114.                     suite.components["%s" % component.name] = \
  115.                         (component.description, component.enabled,
  116.                          component.description_long)
  117.                 component = Component ()
  118.                 component.name = value
  119.             elif field == 'Enabled':
  120.                 component.enabled = bool(int(value))
  121.             elif field == 'CompDescription':
  122.                 component.description = _(value)
  123.             elif field == 'CompDescriptionLong':
  124.                 component.description_long = _(value)
  125.         if suite:
  126.             if component:
  127.                 suite.components["%s" % component.name] = \
  128.                     (component.description, component.enabled,
  129.                      component.description_long)
  130.                 component = None
  131.             self.suites.append (suite)
  132.             suite = None
  133.  
  134.  
  135. if __name__ == "__main__":
  136.     d = DistInfo ("Ubuntu", "../../channels")
  137.     print d.changelogs_uri
  138.     for suite in d.suites:
  139.         print "\nSuite: %s" % suite.name
  140.         print "Desc: %s" % suite.description
  141.         print "BaseURI: %s" % suite.base_uri
  142.         print "MatchURI: %s" % suite.match_uri
  143.         for component in suite.components:
  144.             print "  %s - %s - %s - %s" % (component, 
  145.                                        suite.components[component][0],
  146.                                        suite.components[component][1],
  147.                                        suite.components[component][2])
  148.         for child in suite.children:
  149.             print "  %s" % child.description
  150.