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# Copyright (C) 2007-2009 Aaron Bentley and Panometrics, Inc.
# Ben Finney <benf@cybersource.com.au>
# Gianluca Montecchi <gian@grys.it>
# 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.
"""
Mercurial (hg) backend.
"""
try:
# enable importing on demand to reduce startup time
from mercurial import demandimport; demandimport.enable()
import mercurial
import mercurial.version
import mercurial.dispatch
import mercurial.ui
except ImportError:
mercurial = None
import os
import os.path
import re
import shutil
import StringIO
import sys
import time # work around http://mercurial.selenic.com/bts/issue618
import libbe
import base
if libbe.TESTING == True:
import doctest
import unittest
def new():
return Hg()
class Hg(base.VCS):
name='hg'
client=None # mercurial module
def __init__(self, *args, **kwargs):
base.VCS.__init__(self, *args, **kwargs)
self.versioned = True
self.__updated = [] # work around http://mercurial.selenic.com/bts/issue618
def _vcs_version(self):
if mercurial == None:
return None
return mercurial.version.get_version()
def _u_invoke_client(self, *args, **kwargs):
if 'cwd' not in kwargs:
kwargs['cwd'] = self.repo
assert len(kwargs) == 1, kwargs
fullargs = ['--cwd', kwargs['cwd']]
fullargs.extend(args)
stdout = sys.stdout
tmp_stdout = StringIO.StringIO()
sys.stdout = tmp_stdout
mercurial.dispatch.dispatch(fullargs)
sys.stdout = stdout
return tmp_stdout.getvalue().rstrip('\n')
def _vcs_get_user_id(self):
return self._u_invoke_client('showconfig', 'ui.username')
def _vcs_detect(self, path):
"""Detect whether a directory is revision-controlled using Mercurial"""
if self._u_search_parent_directories(path, '.hg') != None:
return True
return False
def _vcs_root(self, path):
return self._u_invoke_client('root', cwd=path)
def _vcs_init(self, path):
self._u_invoke_client('init', cwd=path)
def _vcs_destroy(self):
vcs_dir = os.path.join(self.repo, '.hg')
if os.path.exists(vcs_dir):
shutil.rmtree(vcs_dir)
def _vcs_add(self, path):
self._u_invoke_client('add', path)
def _vcs_remove(self, path):
self._u_invoke_client('rm', '--force', path)
def _vcs_update(self, path):
self.__updated.append(path) # work around http://mercurial.selenic.com/bts/issue618
def _vcs_get_file_contents(self, path, revision=None):
if revision == None:
return base.VCS._vcs_get_file_contents(self, path, revision)
else:
return self._u_invoke_client('cat', '-r', revision, path)
def _vcs_path(self, id, revision):
output = self._u_invoke_client('manifest', '--rev', revision)
be_dir = self._cached_path_id._spacer_dirs[0]
be_dir_sep = self._cached_path_id._spacer_dirs[0] + os.path.sep
files = [f for f in output.splitlines() if f.startswith(be_dir_sep)]
for file in files:
if not file.startswith(be_dir+os.path.sep):
continue
parts = file.split(os.path.sep)
dir = parts.pop(0) # don't add the first spacer dir
for part in parts[:-1]:
dir = os.path.join(dir, part)
if not dir in files:
files.append(dir)
for file in files:
if self._u_path_to_id(file) == id:
return file
raise base.InvalidId(id, revision=revision)
def _vcs_isdir(self, path, revision):
output = self._u_invoke_client('manifest', '--rev', revision)
files = output.splitlines()
if path in files:
return False
return True
def _vcs_listdir(self, path, revision):
output = self._u_invoke_client('manifest', '--rev', revision)
files = output.splitlines()
path = path.rstrip(os.path.sep) + os.path.sep
return [self._u_rel_path(f, path) for f in files if f.startswith(path)]
def _vcs_commit(self, commitfile, allow_empty=False):
args = ['commit', '--logfile', commitfile]
output = self._u_invoke_client(*args)
# work around http://mercurial.selenic.com/bts/issue618
strings = ['nothing changed']
if self._u_any_in_string(strings, output) == True \
and len(self.__updated) > 0:
time.sleep(1)
for path in self.__updated:
os.utime(os.path.join(self.repo, path), None)
output = self._u_invoke_client(*args)
self.__updated = []
# end work around
if allow_empty == False:
strings = ['nothing changed']
if self._u_any_in_string(strings, output) == True:
raise base.EmptyCommit()
return self._vcs_revision_id(-1)
def _vcs_revision_id(self, index, style='id'):
if index > 0:
index -= 1
args = ['identify', '--rev', str(int(index)), '--%s' % style]
output = self._u_invoke_client(*args)
id = output.strip()
if id == '000000000000':
return None # before initial commit.
return id
if libbe.TESTING == True:
base.make_vcs_testcase_subclasses(Hg, sys.modules[__name__])
unitsuite =unittest.TestLoader().loadTestsFromModule(sys.modules[__name__])
suite = unittest.TestSuite([unitsuite, doctest.DocTestSuite()])
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