bin/gpodder-migrate2tres

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 #
   5 # gPodder - A media aggregator and podcast client
   6 # Copyright (c) 2005-2011 Thomas Perl and the gPodder Team
   7 #
   8 # gPodder is free software; you can redistribute it and/or modify
   9 # it under the terms of the GNU General Public License as published by
  10 # the Free Software Foundation; either version 3 of the License, or
  11 # (at your option) any later version.
  12 #
  13 # gPodder 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, see <http://www.gnu.org/licenses/>.
  20 #
  21
  22
  23 # gpodder-migrate2tres - Migrate data from gPodder 2.x to gPodder 3
  24 # by Thomas Perl <thp@gpodder.org>; 2011-04-28
  25
  26
  27 import sys
  28 import os
  29 import re
  30 import ConfigParser
  31 import shutil
  32
  33 gpodder_script = sys.argv[0]
  34 if os.path.islink(gpodder_script):
  35     gpodder_script = os.readlink(gpodder_script)
  36 gpodder_dir = os.path.join(os.path.dirname(gpodder_script), '..')
  37 prefix = os.path.abspath(os.path.normpath(gpodder_dir))
  38
  39 src_dir = os.path.join(prefix, 'src')
  40 data_dir = os.path.join(prefix, 'data')
  41
  42 if os.path.exists(src_dir) and os.path.exists(data_dir) and \
  43         not prefix.startswith('/usr'):
  44     # Run gPodder from local source folder (not installed)
  45     sys.path.insert(0, src_dir)
  46
  47 import gpodder
  48
  49 # Platform detection (i.e. Maemo 5, etc..)
  50 gpodder.detect_platform()
  51
  52
  53 from gpodder import schema
  54 from gpodder import util
  55
  56 old_database = os.path.expanduser('~/.config/gpodder/database.sqlite')
  57 new_database = gpodder.database_file
  58
  59 old_config = os.path.expanduser('~/.config/gpodder/gpodder.conf')
  60 new_config = gpodder.config_file
  61
  62 if not os.path.exists(old_database):
  63     print >>sys.stderr, """
  64     Turns out that you never ran gPodder 2.
  65     Can't find this required file:
  66
  67        %(old_database)s
  68     """ % locals()
  69     sys.exit(1)
  70
  71 old_downloads = None
  72
  73 if os.path.exists(old_config):
  74     parser = ConfigParser.RawConfigParser()
  75     parser.read(old_config)
  76     try:
  77         old_downloads = parser.get('gpodder-conf-1', 'download_dir')
  78     except ConfigParser.NoSectionError:
  79         # The file is empty / section (gpodder-conf-1) not found
  80         pass
  81     except ConfigParser.NoOptionError:
  82         # The section is available, but the key (download_dir) is not
  83         pass
  84
  85 if old_downloads is None:
  86     # The user has no configuration. This usually happens when
  87     # only the CLI version of gPodder is used. In this case, the
  88     # download directory is most likely the default (bug 1434)
  89     old_downloads = os.path.expanduser('~/gpodder-downloads')
  90
  91 new_downloads = gpodder.downloads
  92
  93 if not os.path.exists(old_downloads):
  94     print >>sys.stderr, """
  95     Old download directory does not exist. Creating empty one.
  96     """
  97     os.makedirs(old_downloads)
  98
  99 if any(os.path.exists(x) for x in (new_database, new_downloads)):
 100     print >>sys.stderr, """
 101     Existing gPodder 3 user data found.
 102     To continue, please remove:
 103
 104        %(new_database)s
 105        %(new_downloads)s
 106     """ % locals()
 107     sys.exit(1)
 108
 109 print >>sys.stderr, """
 110   Would carry out the following actions:
 111
 112       Move downloads from %(old_downloads)s
 113                        to %(new_downloads)s
 114
 115       Convert database from %(old_database)s
 116                          to %(new_database)s
 117
 118 """ % locals()
 119
 120 result = raw_input('Continue? (Y/n) ')
 121
 122 if result in 'Yy':
 123     util.make_directory(gpodder.home)
 124     schema.convert_gpodder2_db(old_database, new_database)
 125     if not os.path.exists(new_database):
 126         print >>sys.stderr, 'Could not convert database.'
 127         sys.exit(1)
 128
 129     shutil.move(old_downloads, new_downloads)
 130     if not os.path.exists(new_downloads):
 131         print >>sys.stderr, 'Could not move downloads.'
 132         sys.exit(1)
 133
 134     print 'Done. Have fun with gPodder 3!'
 135