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# Copyright (C) 2005 Aaron Bentley and Panometrics, Inc.
# <abentley@panoramicfeedback.com>
#
# 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from subprocess import Popen, PIPE
import sys
def rcs_by_name(rcs_name):
"""Return the module for the RCS with the given name"""
if rcs_name == "Arch":
import arch
return arch
elif rcs_name == "bzr":
import bzr
return bzr
elif rcs_name == "None":
import no_rcs
return no_rcs
def detect(dir):
"""Return the module for the rcs being used in this directory"""
import arch
import bzr
if arch.detect(dir):
return arch
elif bzr.detect(dir):
return bzr
import no_rcs
return no_rcs
class CommandError(Exception):
def __init__(self, err_str, status):
Exception.__init__(self, "Command failed (%d): %s" % (status, err_str))
self.err_str = err_str
self.status = status
def invoke(args, expect=(0,), cwd=None):
q = Popen(args, stdout=PIPE, stderr=PIPE, cwd=cwd)
if sys.platform != "win32":
q = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE, cwd=cwd)
else:
# win32 don't have os.execvp() so have to run command in a shell
q = Popen(args, stdin=PIPE, stdout=PIPE, stderr=PIPE, shell=True,
cwd=cwd)
output, error = q.communicate()
status = q.wait()
if status not in expect:
raise CommandError(error, status)
return status, output, error
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