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#!/usr/bin/env python
# -*- coding: utf-8 -*-
#
# Copyright 2004-2007 Zuza Software Foundation
#
# This file is part of translate.
#
# translate 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.
#
# translate 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 translate; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
from translate.storage.versioncontrol import run_command
from translate.storage.versioncontrol import GenericRevisionControlSystem
def is_available():
"""check if darcs is installed"""
exitcode, output, error = run_command(["darcs", "--version"])
return exitcode == 0
class darcs(GenericRevisionControlSystem):
"""Class to manage items under revision control of darcs."""
RCS_METADIR = "_darcs"
SCAN_PARENTS = True
def update(self, revision=None):
"""Does a clean update of the given path
@param revision: ignored for darcs
"""
# revert local changes (avoids conflicts)
command = ["darcs", "revert", "--repodir", self.root_dir,
"-a", self.location_rel]
exitcode, output_revert, error = run_command(command)
if exitcode != 0:
raise IOError("[Darcs] error running '%s': %s" % (command, error))
# pull new patches
command = ["darcs", "pull", "--repodir", self.root_dir, "-a"]
exitcode, output_pull, error = run_command(command)
if exitcode != 0:
raise IOError("[Darcs] error running '%s': %s" % (command, error))
return output_revert + output_pull
def commit(self, message=None, author=None):
"""Commits the file and supplies the given commit message if present"""
if message is None:
message = ""
# set change message
command = ["darcs", "record", "-a", "--repodir", self.root_dir,
"--skip-long-comment", "-m", message]
# add the 'author' to the list of arguments if it was given
if author:
command.extend(["--author", author])
# the location of the file is the last argument
command.append(self.location_rel)
exitcode, output_record, error = run_command(command)
if exitcode != 0:
raise IOError("[Darcs] Error running darcs command '%s': %s" \
% (command, error))
# push changes
command = ["darcs", "push", "-a", "--repodir", self.root_dir]
exitcode, output_push, error = run_command(command)
if exitcode != 0:
raise IOError("[Darcs] Error running darcs command '%s': %s" \
% (command, error))
return output_record + output_push
def getcleanfile(self, revision=None):
"""Get a clean version of a file from the darcs repository
@param revision: ignored for darcs
"""
import os
filename = os.path.join(self.root_dir, self.RCS_METADIR, 'pristine',
self.location_rel)
try:
darcs_file = open(filename)
output = darcs_file.read()
darcs_file.close()
except IOError, error:
raise IOError("[Darcs] error reading original file '%s': %s" % \
(filename, error))
return output
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