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utils: abstract protocol/plugin import prefixes, and implement filtering by plugin in 'list'

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Closes #369.
This commit is contained in:
James Lu 2016-12-16 19:25:41 -08:00
parent 7b5fcc3219
commit 95b58fc2c4
1 changed files with 34 additions and 8 deletions
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42
utils.py
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@ -16,6 +16,8 @@ from . import world, conf
# This is just so protocols and plugins are importable.
from pylinkirc import protocols, plugins
PLUGIN_PREFIX = 'pylinkirc.plugins.'
PROTOCOL_PREFIX = 'pylinkirc.protocols.'
NORMALIZEWHITESPACE_RE = re.compile(r'\s+')
class NotAuthorizedError(Exception):
@ -144,13 +146,13 @@ def loadPlugin(name):
"""
Imports and returns the requested plugin.
"""
return importlib.import_module('pylinkirc.plugins.' + name)
return importlib.import_module(PLUGIN_PREFIX + name)
def getProtocolModule(name):
"""
Imports and returns the protocol module requested.
"""
return importlib.import_module('pylinkirc.protocols.' + name)
return importlib.import_module(PROTOCOL_PREFIX + name)
def getDatabaseName(dbname):
"""
@ -402,26 +404,50 @@ class ServiceBot():
self._show_command_help(irc, command)
def listcommands(self, irc, source, args):
"""takes no arguments.
"""[<plugin name>]
Returns a list of available commands this service has to offer."""
Returns a list of available commands this service has to offer. The optional
plugin name argument also allows you to filter commands by plugin (case
insensitive)."""
try:
plugin_filter = args[0].lower()
except IndexError:
plugin_filter = None
# Don't show CTCP handlers in the public command list.
cmds = sorted([cmd for cmd in self.commands.keys() if '\x01' not in cmd])
cmds = sorted(cmd for cmd in self.commands.keys() if '\x01' not in cmd)
if plugin_filter is not None:
# Filter by plugin, if the option was given.
new_cmds = []
# Add the pylinkirc.plugins prefix to the module name, so it can be used for matching.
plugin_module = PLUGIN_PREFIX + plugin_filter
for cmd_definition in cmds:
for cmdfunc in self.commands[cmd_definition]:
if cmdfunc.__module__.lower() == plugin_module:
new_cmds.append(cmd_definition)
# Replace the old command list.
cmds = new_cmds
if cmds:
self.reply(irc, 'Available commands include: %s' % ', '.join(cmds))
self.reply(irc, 'To see help on a specific command, type \x02help <command>\x02.')
else:
elif not plugin_filter:
self.reply(irc, 'This service doesn\'t provide any public commands.')
else:
self.reply(irc, 'This service doesn\'t provide any public commands from the plugin %s.' % plugin_filter)
# If there are featured commands, list them by showing the help for each.
# These definitions are sent in private to prevent flooding in channels.
if self.featured_cmds:
if self.featured_cmds and not plugin_filter:
self.reply(irc, " ", private=True)
self.reply(irc, 'Featured commands include:', private=True)
for cmd in sorted(self.featured_cmds):
if self.commands.get(cmd):
if cmd in cmds:
# Only show featured commands that are both defined and loaded.
# TODO: perhaps plugin unload should remove unused featured command
# definitions automatically?