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# Copyright (C) 2005-2009 Aaron Bentley and Panometrics, Inc.
# Gianluca Montecchi <gian@grys.it>
# Marien Zwart <marienz@gentoo.org>
# W. Trevor King <wking@drexel.edu>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
"""
Allow simple listing and loading of the various becommands and libbe
submodules (i.e. "plugins").
"""
import os
import os.path
import sys
import libbe
if libbe.TESTING == True:
import doctest
def my_import(mod_name):
module = __import__(mod_name)
components = mod_name.split('.')
for comp in components[1:]:
module = getattr(module, comp)
return module
def iter_plugins(prefix):
"""
>>> "list" in [n for n,m in iter_plugins("becommands")]
True
>>> "plugin" in [n for n,m in iter_plugins("libbe")]
True
"""
modfiles = os.listdir(os.path.join(plugin_path, prefix))
modfiles.sort()
for modfile in modfiles:
if modfile.startswith('.'):
continue # the occasional emacs temporary file
if modfile.endswith(".py") and modfile != "__init__.py":
yield modfile[:-3], my_import(prefix+"."+modfile[:-3])
def get_plugin(prefix, name):
"""
>>> get_plugin("becommands", "asdf") is None
True
>>> q = repr(get_plugin("becommands", "list"))
>>> q.startswith("<module 'becommands.list' from ")
True
"""
dirprefix = os.path.join(*prefix.split('.'))
command_path = os.path.join(plugin_path, dirprefix, name+".py")
if os.path.isfile(command_path):
return my_import(prefix + "." + name)
return None
plugin_path = os.path.realpath(os.path.dirname(os.path.dirname(__file__)))
if plugin_path not in sys.path:
sys.path.append(plugin_path)
if libbe.TESTING == True:
suite = doctest.DocTestSuite()
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