# Copyright (C) 2005-2010 Aaron Bentley and Panometrics, Inc.
# Ben Finney <benf@cybersource.com.au>
# Gianluca Montecchi <gian@grys.it>
# Marien Zwart <marienz@gentoo.org>
# W. Trevor King <wking@drexel.edu>
#
# 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.
"""
Bazaar (bzr) backend.
"""
try:
import bzrlib
import bzrlib.branch
import bzrlib.builtins
import bzrlib.config
import bzrlib.errors
import bzrlib.option
except ImportError:
bzrlib = None
import os
import os.path
import re
import shutil
import StringIO
import libbe
import base
if libbe.TESTING == True:
import doctest
import sys
import unittest
def new():
return Bzr()
class Bzr(base.VCS):
name = 'bzr'
client = None # bzrlib module
def __init__(self, *args, **kwargs):
base.VCS.__init__(self, *args, **kwargs)
self.versioned = True
def _vcs_version(self):
if bzrlib == None:
return None
return bzrlib.__version__
def _vcs_get_user_id(self):
# excerpted from bzrlib.builtins.cmd_whoami.run()
try:
c = bzrlib.branch.Branch.open_containing(self.repo)[0].get_config()
except errors.NotBranchError:
c = bzrlib.config.GlobalConfig()
return c.username()
def _vcs_detect(self, path):
if self._u_search_parent_directories(path, '.bzr') != None :
return True
return False
def _vcs_root(self, path):
"""Find the root of the deepest repository containing path."""
cmd = bzrlib.builtins.cmd_root()
cmd.outf = StringIO.StringIO()
cmd.run(filename=path)
return cmd.outf.getvalue().rstrip('\n')
def _vcs_init(self, path):
cmd = bzrlib.builtins.cmd_init()
cmd.outf = StringIO.StringIO()
cmd.run(location=path)
def _vcs_destroy(self):
vcs_dir = os.path.join(self.repo, '.bzr')
if os.path.exists(vcs_dir):
shutil.rmtree(vcs_dir)
def _vcs_add(self, path):
path = os.path.join(self.repo, path)
cmd = bzrlib.builtins.cmd_add()
cmd.outf = StringIO.StringIO()
cmd.run(file_list=[path], file_ids_from=self.repo)
def _vcs_remove(self, path):
# --force to also remove unversioned files.
path = os.path.join(self.repo, path)
cmd = bzrlib.builtins.cmd_remove()
cmd.outf = StringIO.StringIO()
cmd.run(file_list=[path], file_deletion_strategy='force')
def _vcs_update(self, path):
pass
def _parse_revision_string(self, revision=None):
if revision == None:
return revision
rev_opt = bzrlib.option.Option.OPTIONS['revision']
try:
rev_spec = rev_opt.type(revision)
except bzrlib.errors.NoSuchRevisionSpec:
raise base.InvalidRevision(revision)
return rev_spec
def _vcs_get_file_contents(self, path, revision=None):
if revision == None:
return base.VCS._vcs_get_file_contents(self, path, revision)
path = os.path.join(self.repo, path)
revision = self._parse_revision_string(revision)
cmd = bzrlib.builtins.cmd_cat()
cmd.outf = StringIO.StringIO()
try:
cmd.run(filename=path, revision=revision)
except bzrlib.errors.BzrCommandError, e:
if 'not present in revision' in str(e):
raise base.InvalidPath(path, root=self.repo, revision=revision)
raise
return cmd.outf.getvalue()
def _vcs_path(self, id, revision):
return self._u_find_id(id, revision)
def _vcs_isdir(self, path, revision):
try:
self._vcs_listdir(path, revision)
except AttributeError, e:
if 'children' in str(e):
return False
raise
return True
def _vcs_listdir(self, path, revision):
path = os.path.join(self.repo, path)
revision = self._parse_revision_string(revision)
cmd = bzrlib.builtins.cmd_ls()
cmd.outf = StringIO.StringIO()
try:
cmd.run(revision=revision, path=path)
except bzrlib.errors.BzrCommandError, e:
if 'not present in revision' in str(e):
raise base.InvalidPath(path, root=self.repo, revision=revision)
raise
children = cmd.outf.getvalue().rstrip('\n').splitlines()
children = [self._u_rel_path(c, path) for c in children]
return children
def _vcs_commit(self, commitfile, allow_empty=False):
cmd = bzrlib.builtins.cmd_commit()
cmd.outf = StringIO.StringIO()
cwd = os.getcwd()
os.chdir(self.repo)
try:
cmd.run(file=commitfile, unchanged=allow_empty)
except bzrlib.errors.BzrCommandError, e:
strings = ['no changes to commit.', # bzr 1.3.1
'No changes to commit.'] # bzr 1.15.1
if self._u_any_in_string(strings, str(e)) == True:
raise base.EmptyCommit()
raise
finally:
os.chdir(cwd)
return self._vcs_revision_id(-1)
def _vcs_revision_id(self, index):
cmd = bzrlib.builtins.cmd_revno()
cmd.outf = StringIO.StringIO()
cmd.run(location=self.repo)
current_revision = int(cmd.outf.getvalue())
if index > current_revision or index < -current_revision:
return None
if index >= 0:
return str(index) # bzr commit 0 is the empty tree.
return str(current_revision+index+1)
if libbe.TESTING == True:
base.make_vcs_testcase_subclasses(Bzr, sys.modules[__name__])
unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])
