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authorFlorent Le Coz <louiz@louiz.org>2011-09-24 22:26:31 +0200
committerFlorent Le Coz <louiz@louiz.org>2011-09-24 22:26:31 +0200
commitf27556747896aeb891ce71cfdd0ac349d68c5b3d (patch)
treedda3389310142b1783732f27a9393daf228a9c5d /src/plugin_manager.py
parente3b933445fe4b18af6ec462fc40da5f482e447a0 (diff)
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[teisenbe] Use the imp module to import modules.
Also add a simple translator module
Diffstat (limited to 'src/plugin_manager.py')
-rw-r--r--src/plugin_manager.py77
1 files changed, 69 insertions, 8 deletions
diff --git a/src/plugin_manager.py b/src/plugin_manager.py
index 3f900e39..8301f5f8 100644
--- a/src/plugin_manager.py
+++ b/src/plugin_manager.py
@@ -1,25 +1,86 @@
+import imp
+import os
+import sys
+from config import config
+from gettext import gettext as _
+
+plugins_dir = config.get('plugins_dir', '')
+plugins_dir = plugins_dir or\
+ os.path.join(os.environ.get('XDG_DATA_HOME') or\
+ os.path.join(os.environ.get('HOME'), '.local', 'share'),
+ 'poezio', 'plugins')
+try:
+ os.makedirs(plugins_dir)
+except OSError:
+ pass
+
+sys.path.append(plugins_dir)
+
class PluginManager(object):
def __init__(self, core):
self.core = core
- self.plugins = {}
+ self.modules = {} # module name -> module object
+ self.plugins = {} # module name -> plugin object
+ self.commands = {} # module name -> dict of commands loaded for the module
+ self.event_handlers = {} # module name -> list of event_name/handler pairs loaded for the module
def load(self, name):
if name in self.plugins:
self.plugins[name].unload()
try:
- code = compile(open(name).read(), name, 'exec')
- from plugin import BasePlugin
- globals = { 'BasePlugin' : BasePlugin }
- exec(code, globals)
- self.plugins[name] = globals['Plugin'](self.core)
+ if name in self.modules:
+ imp.acquire_lock()
+ module = imp.reload(self.modules[name])
+ imp.release_lock()
+ else:
+ file, filename, info = imp.find_module(name, [plugins_dir])
+ imp.acquire_lock()
+ module = imp.load_module(name, file, filename, info)
+ imp.release_lock()
except Exception as e:
- self.core.information("Could not load plugin: %s" % (e,))
+ import traceback
+ self.core.information(_("Could not load plugin: ") + traceback.format_exc())
+ return
+ finally:
+ if imp.lock_held():
+ imp.release_lock()
+
+ self.modules[name] = module
+ self.commands[name] = {}
+ self.event_handlers[name] = []
+ self.plugins[name] = module.Plugin(self, self.core)
def unload(self, name):
if name in self.plugins:
try:
+ for command in self.commands[name].keys():
+ del self.core.commands[command]
+ for event_name, handler in self.event_handlers[name]:
+ self.core.xmpp.del_event_handler(event_name, handler)
+
self.plugins[name].unload()
del self.plugins[name]
+ del self.commands[name]
+ del self.event_handlers[name]
except Exception as e:
- self.core.information("Could not unload plugin (may not be safe to try again): %s" % (e,))
+ import traceback
+ self.core.information(_("Could not unload plugin (may not be safe to try again): ") + traceback.format_exc())
+
+ def add_command(self, module_name, name, handler, help, completion=None):
+ if name in self.core.commands:
+ raise Exception(_("Command '%s' already exists") % (name,))
+
+ commands = self.commands[module_name]
+ commands[name] = (handler, help, completion)
+ self.core.commands[name] = (handler, help, completion)
+
+ def add_event_handler(self, module_name, event_name, handler):
+ eh = self.event_handlers[module_name]
+ eh.append((event_name, handler))
+ self.core.xmpp.add_event_handler(event_name, handler)
+
+ def del_event_handler(self, module_name, event_name, handler):
+ self.core.xmpp.del_event_handler(event_name, handler)
+ eh = self.event_handlers[module_name]
+ eh = list(filter(lambda e : e != (event_name, handler), eh))