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Viewing changes to common/pluginmanager.py

  • Committer: Bazaar Package Importer
  • Author(s): Jonathan Wiltshire
  • Date: 2009-05-16 23:04:32 UTC
  • mfrom: (1.1.4 upstream)
  • Revision ID: james.westby@ubuntu.com-20090516230432-orrutvtufbtuxsc6
Tags: 0.9.24-1
http://bugs.debian.org/527447
http://bugs.debian.org/527595
* New upstream version (closes: #527447):
  - backintime is no longer aware of 'backintime-gnome' and 'backintime-kde4'
    (you need run 'backintime-gnome' for GNOME version and 'backintime-kde4'
    for KDE4 version)
  - fix a bug that crashes the program after taking a snapshot
* Update homepage field in debian/control (closes: #527595)
* Refactor packaging to fit new upstream build system (an almost entire 
  re-write of debian/rules)
* Make configure scripts use /bin/sh instead of /bin/bash (they don't use
  bash features)

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common/pluginmanager.py
 
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#    Back In Time
 
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#    Copyright (C) 2008-2009 Oprea Dan
 
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#
 
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#    This program is free software; you can redistribute it and/or modify
 
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#    it under the terms of the GNU General Public License as published by
 
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#    the Free Software Foundation; either version 2 of the License, or
 
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#    (at your option) any later version.
 
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#
 
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#    This program is distributed in the hope that it will be useful,
 
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#    but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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#    GNU General Public License for more details.
 
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#
 
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#    You should have received a copy of the GNU General Public License along
 
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#    with this program; if not, write to the Free Software Foundation, Inc.,
 
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#    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 
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import os.path
 
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import tools
 
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import types
 
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tools.register_backintime_path( 'common' )
 
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tools.register_backintime_path( 'plugins' )
 
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class Plugin:
 
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        def __init__( self ):
 
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                return
 
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        def init( self, snapshots ):
 
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                return True
 
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        def is_gui( self ):
 
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                return False
 
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        def on_process_begins( self ):
 
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                return
 
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        def on_process_ends( self ):
 
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                return
 
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        def on_error( self, code, message ):
 
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                return
 
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        def on_new_snapshot( self, snapshot_id, snapshot_path ):
 
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                return
 
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class PluginManager():
 
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        def __init__( self ):
 
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                self.plugins = []
 
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                self.has_gui_plugins_ = False
 
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                self.plugins_loaded = False
 
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        def load_plugins( self, snapshots, force = False ):
 
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                if self.plugins_loaded and not force:
 
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                        return
 
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                self.plugins_loaded = True
 
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                self.plugins = []
 
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                self.has_gui_plugins_ = False
 
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                plugins_path = tools.get_backintime_path( 'plugins' )
 
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                for file in os.listdir( plugins_path ):
 
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                        if file.endswith( '.py' ) and not file.startswith( '__' ):
 
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                                path = os.path.join( plugins_path, file )
 
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                                module = __import__( file[ : -3 ] )
 
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                                module_dict = module.__dict__
 
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                                for key, value in module_dict.items():
 
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                                        if key.startswith( '__' ):
 
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                                                continue
 
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                                        if type(value) is types.ClassType:
 
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                                                if issubclass( value, Plugin ):
 
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                                                        plugin = value()
 
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                                                        if plugin.init( snapshots ):
 
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                                                                if plugin.is_gui():
 
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                                                                        self.has_gui_plugins_ = True
 
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                                                                        self.plugins.insert( 0, plugin )
 
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                                                                else:
 
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                                                                        self.plugins.append( plugin )
 
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        def has_gui_plugins( self ):
 
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                return self.has_gui_plugins_
 
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        def on_process_begins( self ):
 
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                for plugin in self.plugins:
 
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                        plugin.on_process_begins()
 
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        def on_process_ends( self ):
 
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                for plugin in reversed( self.plugins ):
 
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                        plugin.on_process_ends()
 
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        def on_error( self, code, message = '' ):
 
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                for plugin in self.plugins:
 
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                        plugin.on_error( code, message )
 
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        def on_new_snapshot( self, snapshot_id, snapshot_path ):
 
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                for plugin in self.plugins:
 
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                        plugin.on_new_snapshot( snapshot_id, snapshot_path )
 
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