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# Copyright (C) 2005-2012 Aaron Bentley <abentley@panoramicfeedback.com>
# Chris Ball <cjb@laptop.org>
# Gianluca Montecchi <gian@grys.it>
# Marien Zwart <marien.zwart@gmail.com>
# W. Trevor King <wking@drexel.edu>
#
# This file is part of Bugs Everywhere.
#
# Bugs Everywhere 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.
#
# Bugs Everywhere 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
# Bugs Everywhere. If not, see <http://www.gnu.org/licenses/>.
"""
Allow simple listing and loading of the various becommands and libbe
submodules (i.e. "plugins").
"""
import os
import os.path
import sys
import zipfile
_PLUGIN_PATH = os.path.realpath(
os.path.dirname(
os.path.dirname(
os.path.dirname(__file__))))
if _PLUGIN_PATH not in sys.path:
sys.path.append(_PLUGIN_PATH)
def import_by_name(modname):
"""
>>> mod = import_by_name('libbe.bugdir')
>>> 'BugDir' in dir(mod)
True
>>> import_by_name('libbe.highly_unlikely')
Traceback (most recent call last):
...
ImportError: No module named highly_unlikely
"""
module = __import__(modname)
components = modname.split('.')
for comp in components[1:]:
module = getattr(module, comp)
return module
def ziplistdir(path):
"""Lists items in a directory contained in a zip file"""
zipidx=path.find('.zip')
zippath=path[:4+zipidx]
path=path[5+zipidx:].replace(os.sep, '/')
with zipfile.ZipFile(zippath, 'r') as zf:
files=[f[len(path)+1:] for f in zf.namelist() if f[:len(path)]==path and '/' not in f[len(path)+1:]]
return files
def modnames(prefix):
"""
>>> 'list' in [n for n in modnames('libbe.command')]
True
>>> 'plugin' in [n for n in modnames('libbe.util')]
True
"""
components = prefix.split('.')
modfilespath=os.path.join(_PLUGIN_PATH, *components)
# Cope if we are executing from inside a zip archive full of precompiled .pyc's
modfiles=ziplistdir(modfilespath) if '.zip' in modfilespath else os.listdir(modfilespath)
modfiles.sort()
# Eliminate .py/.pyc duplicates
print modfiles
x=1
while x<len(modfiles):
if modfiles[x].endswith('.pyc') and modfiles[x-1]==modfiles[x][:len(modfiles[x-1])]:
del modfiles[x-1]
else:
x+=1
print modfiles
for modfile in modfiles:
if modfile.startswith('.'):
continue # the occasional emacs temporary file
if modfile == '__init__.py' or modfile == '__init__.pyc':
continue
if modfile.endswith('.py'):
yield modfile[:-3]
elif modfile.endswith('.pyc'):
yield modfile[:-4]
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