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="diablo", default=False,
 105                       help=_("Start the Maemo 4 user interface"))
 106
 107     parser.add_option("-f", "--fremantle",
 108                       action="store_true", dest="fremantle", default=False,
 109                       help=_("Start the Maemo 5 user interface"))
 110
 111     parser.add_option('-s', '--subscribe', dest='subscribe', metavar='URL',
 112                       help=_('Subscribe to the given URL'))
 113
 114     (options, args) = parser.parse_args(sys.argv)
 115
 116     if options.fremantle or options.diablo:
 117         gpodder.icon_file = gpodder.icon_file.replace('.svg', '.png')
 118
 119     if options.fremantle:
 120         gpodder.ui.fremantle = True
 121         gpodder.ui_folders.insert(0, os.path.join(ui_folder, 'frmntl'))
 122     elif options.diablo or os.path.exists(maemo_file):
 123         gpodder.ui.diablo = True
 124         gpodder.ui_folders.insert(0, os.path.join(ui_folder, 'maemo'))
 125     else:
 126         gpodder.ui.desktop = True
 127         gpodder.ui_folders.insert(0, os.path.join(ui_folder, 'desktop'))
 128
 129     if options.verbose:
 130         from gpodder.liblogger import enable_verbose
 131         enable_verbose()
 132
 133     if have_dbus:
 134         # Try to find an already-running instance of gPodder
 135         try:
 136             session_bus = dbus.SessionBus()
 137             remote_object = session_bus.get_object(gpodder.dbus_bus_name, gpodder.dbus_gui_object_path)
 138             from gpodder.liblogger import log
 139             log('Found gPodder GUI instance already running')
 140         except dbus.exceptions.DBusException:
 141             remote_object = None
 142     else:
 143         # No D-Bus available :/
 144         remote_object = None
 145
 146     if remote_object is not None:
 147         # An instance of GUI is already running
 148         remote_object.show_gui_window(dbus_interface=gpodder.dbus_interface)
 149         if options.subscribe:
 150             remote_object.subscribe_to_url(options.subscribe)
 151     else:
 152         # gPodder is not yet running - create new instance
 153         from gpodder import gui
 154
 155         # check if we have an X11 connection (but not on Windows)
 156         if platform.system() != 'Windows' and \
 157                 not os.environ.get('DISPLAY', None):
 158             print >>sys.stderr, 'Cannot start gPodder: $DISPLAY is not set.'
 159             sys.exit(1)
 160
 161         if gpodder.ui.maemo:
 162             # Reduce our nice value to zero if we're on Maemo to
 163             # make the tablet not kill itself while updating feeds
 164             if os.nice(0) < 0:
 165                 os.nice(-os.nice(0))
 166
 167         gui.main(options)
 168