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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
import os
from translate.storage.versioncontrol import run_command
from translate.storage.versioncontrol import GenericRevisionControlSystem
def is_available():
"""check if cvs is installed"""
exitcode, output, error = run_command(["cvs", "--version"])
return exitcode == 0
class cvs(GenericRevisionControlSystem):
"""Class to manage items under revision control of CVS."""
RCS_METADIR = "CVS"
SCAN_PARENTS = False
def _readfile(self, cvsroot, path, revision=None):
"""
Read a single file from the CVS repository without checking out a full
working directory.
@param cvsroot: the CVSROOT for the repository
@param path: path to the file relative to cvs root
@param revision: revision or tag to get (retrieves from HEAD if None)
"""
command = ["cvs", "-d", cvsroot, "-Q", "co", "-p"]
if revision:
command.extend(["-r", revision])
# the path is the last argument
command.append(path)
exitcode, output, error = run_command(command)
if exitcode != 0:
raise IOError("[CVS] Could not read '%s' from '%s': %s / %s" % \
(path, cvsroot, output, error))
return output
def getcleanfile(self, revision=None):
"""Get the content of the file for the given revision"""
parentdir = os.path.dirname(self.location_abs)
cvsdir = os.path.join(parentdir, "CVS")
cvsroot = open(os.path.join(cvsdir, "Root"), "r").read().strip()
cvspath = open(os.path.join(cvsdir, "Repository"), "r").read().strip()
cvsfilename = os.path.join(cvspath, os.path.basename(self.location_abs))
if revision is None:
cvsentries = open(os.path.join(cvsdir, "Entries"), "r").readlines()
revision = self._getcvstag(cvsentries)
if revision == "BASE":
cvsentries = open(os.path.join(cvsdir, "Entries"), "r").readlines()
revision = self._getcvsrevision(cvsentries)
return self._readfile(cvsroot, cvsfilename, revision)
def update(self, revision=None):
"""Does a clean update of the given path"""
working_dir = os.path.dirname(self.location_abs)
filename = self.location_abs
filename_backup = filename + os.path.extsep + "bak"
# rename the file to be updated
try:
os.rename(filename, filename_backup)
except OSError, error:
raise IOError("[CVS] could not move the file '%s' to '%s': %s" % \
(filename, filename_backup, error))
command = ["cvs", "-Q", "update", "-C"]
if revision:
command.extend(["-r", revision])
# the filename is the last argument
command.append(os.path.basename(filename))
# run the command within the given working_dir
exitcode, output, error = run_command(command, working_dir)
# restore backup in case of an error - remove backup for success
try:
if exitcode != 0:
os.rename(filename_backup, filename)
else:
os.remove(filename_backup)
except OSError:
pass
# raise an error or return successfully - depending on the CVS command
if exitcode != 0:
raise IOError("[CVS] Error running CVS command '%s': %s" \
% (command, error))
else:
return output
def commit(self, message=None, author=None):
"""Commits the file and supplies the given commit message if present
the 'author' parameter is not suitable for CVS, thus it is ignored
"""
working_dir = os.path.dirname(self.location_abs)
filename = os.path.basename(self.location_abs)
command = ["cvs", "-Q", "commit"]
if message:
command.extend(["-m", message])
# the filename is the last argument
command.append(filename)
exitcode, output, error = run_command(command, working_dir)
# raise an error or return successfully - depending on the CVS command
if exitcode != 0:
raise IOError("[CVS] Error running CVS command '%s': %s" \
% (command, error))
else:
return output
def _getcvsrevision(self, cvsentries):
"""returns the revision number the file was checked out with by looking
in the lines of cvsentries
"""
filename = os.path.basename(self.location_abs)
for cvsentry in cvsentries:
# an entries line looks like the following:
# /README.TXT/1.19/Sun Dec 16 06:00:12 2001//
cvsentryparts = cvsentry.split("/")
if len(cvsentryparts) < 6:
continue
if os.path.normcase(cvsentryparts[1]) == os.path.normcase(filename):
return cvsentryparts[2].strip()
return None
def _getcvstag(self, cvsentries):
"""Returns the sticky tag the file was checked out with by looking in
the lines of cvsentries.
"""
filename = os.path.basename(self.location_abs)
for cvsentry in cvsentries:
# an entries line looks like the following:
# /README.TXT/1.19/Sun Dec 16 06:00:12 2001//
cvsentryparts = cvsentry.split("/")
if len(cvsentryparts) < 6:
continue
if os.path.normcase(cvsentryparts[1]) == os.path.normcase(filename):
if cvsentryparts[5].startswith("T"):
return cvsentryparts[5][1:].strip()
return None
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