0x1998 - MANAGER
Edit File: externalcommand.py
# Copyright (C) 2004, 2005 Canonical Ltd # # 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 from __future__ import absolute_import # TODO: Perhaps rather than mapping options and arguments back and # forth, we should just pass in the whole argv, and allow # ExternalCommands to handle it differently to internal commands? import os from bzrlib.commands import Command class ExternalCommand(Command): """Class to wrap external commands.""" @classmethod def find_command(cls, cmd): import os.path bzrpath = os.environ.get('BZRPATH', '') for dir in bzrpath.split(os.pathsep): ## Empty directories are not real paths if not dir: continue # This needs to be os.path.join() or windows cannot # find the batch file that you are wanting to execute path = os.path.join(dir, cmd) if os.path.isfile(path): return ExternalCommand(path) return None def __init__(self, path): self.path = path def name(self): return os.path.basename(self.path) def run(self, *args, **kwargs): raise NotImplementedError('should not be called on %r' % self) def run_argv_aliases(self, argv, alias_argv=None): return os.spawnv(os.P_WAIT, self.path, [self.path] + argv) def help(self): m = 'external command from %s\n\n' % self.path pipe = os.popen('%s --help' % self.path) return m + pipe.read()