bin/gpodder

   1 #!/usr/bin/env python
   2 # -*- coding: utf-8 -*-
   3
   4 #
   5 # gPodder - A media aggregator and podcast client
   6 # Copyright (c) 2005-2009 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 enables you to subscribe to RSS feeds and download
  24 podcast episodes from these feeds.
  25
  26 Downloaded podcasts can either be synchronized to portable
  27 MP3 players (including iPods) or played back on the user's
  28 desktop.
  29
  30 See gpo(1) for the command-line interface.
  31 """
  32
  33 import sys
  34 import os
  35 import os.path
  36 import platform
  37
  38 import gettext
  39
  40 try:
  41     import dbus
  42     import dbus.glib
  43     have_dbus = True
  44 except ImportError:
  45     print >>sys.stderr, """
  46     Warning: python-dbus not found. Disabling D-Bus support.
  47     """
  48     have_dbus = False
  49
  50 from optparse import OptionParser
  51
  52 if __name__ == '__main__':
  53     # Paths to important files
  54     gpodder_script = sys.argv[0]
  55     if os.path.islink(gpodder_script):
  56         gpodder_script = os.readlink(gpodder_script)
  57     gpodder_dir = os.path.join(os.path.dirname(gpodder_script), '..')
  58     prefix = os.path.abspath(os.path.normpath(gpodder_dir))
  59
  60     src_dir = os.path.join(prefix, 'src')
  61     data_dir = os.path.join(prefix, 'data')
  62     locale_dir = os.path.join(prefix, 'share', 'locale')
  63     ui_folder = os.path.join(prefix, 'share', 'gpodder', 'ui')
  64     credits_file = os.path.join(prefix, 'share', 'gpodder', 'credits.txt')
  65     icon_file = os.path.join(prefix, 'share', 'icons', 'hicolor', 'scalable', 'apps', 'gpodder.svg')
  66
  67     # The existence of this file tells us we're running on Maemo
  68     maemo_file = os.path.join(prefix, 'share', 'applications', 'hildon', 'gpodder.desktop')
  69
  70     if os.path.exists(src_dir) and os.path.exists(data_dir) and \
  71             not prefix.startswith('/usr'):
  72         # Run gPodder from local source folder (not installed)
  73         print >>sys.stderr, 'Using modules from', src_dir
  74         sys.path.insert(0, src_dir)
  75         print >>sys.stderr, 'Using resources from', data_dir
  76         locale_dir = os.path.join(data_dir, 'locale')
  77         ui_folder = os.path.join(data_dir, 'ui')
  78         credits_file = os.path.join(data_dir, 'credits.txt')
  79         icon_file = os.path.join(data_dir, 'gpodder.svg')
  80
  81     # Set up the path to translation files
  82     gettext.bindtextdomain('gpodder', locale_dir)
  83
  84     import gpodder
  85
  86     # Enable i18n for gPodder translations
  87     _ = gpodder.gettext
  88
  89     # Set up paths to folder with GtkBuilder files and gpodder.svg
  90     gpodder.ui_folders.append(ui_folder)
  91     gpodder.credits_file = credits_file
  92     gpodder.icon_file = icon_file
  93
  94     s_usage = 'usage: %%prog [options]\n\n%s' % ( __doc__.strip() )
  95     s_version = '%%prog %s' % ( gpodder.__version__ )
  96
  97     parser = OptionParser( usage = s_usage, version = s_version)
  98
  99     parser.add_option("-v", "--verbose",
 100                       action="store_true", dest="verbose", default=False,
 101                       help=_("Print debugging output to stdout"))
 102
 103     parser.add_option("-m", "--maemo",
 104                       action="store_true", dest="maemo", default=False,
 105                       help=_("Start the Maemo user interface of gPodder"))
 106
 107     parser.add_option('-s', '--subscribe', dest='subscribe', metavar='URL',
 108                       help=_('Subscribe to the given URL'))
 109
 110     (options, args) = parser.parse_args(sys.argv)
 111
 112     if options.maemo or os.path.exists(maemo_file):
 113         gpodder.interface = gpodder.MAEMO
 114         gpodder.ui_folders.insert(0, os.path.join(ui_folder, 'maemo'))
 115         gpodder.icon_file = gpodder.icon_file.replace('.svg', '.png')
 116     else:
 117         gpodder.interface = gpodder.GUI
 118         gpodder.ui_folders.insert(0, os.path.join(ui_folder, 'desktop'))
 119
 120     if options.verbose:
 121         from gpodder.liblogger import enable_verbose
 122         enable_verbose()
 123
 124     if have_dbus:
 125         # Try to find an already-running instance of gPodder
 126         try:
 127             session_bus = dbus.SessionBus()
 128             remote_object = session_bus.get_object(gpodder.dbus_bus_name, gpodder.dbus_gui_object_path)
 129             from gpodder.liblogger import log
 130             log('Found gPodder GUI instance already running')
 131         except dbus.exceptions.DBusException:
 132             remote_object = None
 133     else:
 134         # No D-Bus available :/
 135         remote_object = None
 136
 137     if remote_object is not None:
 138         # An instance of GUI is already running
 139         remote_object.show_gui_window(dbus_interface=gpodder.dbus_interface)
 140         if options.subscribe:
 141             remote_object.subscribe_to_url(options.subscribe)
 142     else:
 143         # gPodder is not yet running - create new instance
 144         from gpodder import gui
 145
 146         # check if we have an X11 connection (but not on Windows)
 147         if platform.system() != 'Windows' and \
 148                 not os.environ.get('DISPLAY', None):
 149             print >>sys.stderr, 'Cannot start gPodder: $DISPLAY is not set.'
 150             sys.exit(1)
 151
 152         if gpodder.interface == gpodder.MAEMO:
 153             # Reduce our nice value to zero if we're on Maemo to
 154             # make the tablet not kill itself while updating feeds
 155             if os.nice(0) < 0:
 156                 os.nice(-os.nice(0))
 157
 158         gui.main(options)
 159