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# Copyright (C) 2007-2010 Aaron Bentley <abentley@panoramicfeedback.com>
# Ben Finney <benf@cybersource.com.au>
# Gianluca Montecchi <gian@grys.it>
# W. Trevor King <wking@drexel.edu>
#
# This file is part of Bugs Everywhere.
#
# Bugs Everywhere 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.
#
# Bugs Everywhere 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 Bugs Everywhere. If not, see <http://www.gnu.org/licenses/>.
"""Mercurial_ (hg) backend.
.. _Mercurial: http://mercurial.selenic.com/
"""
try:
import mercurial
import mercurial.dispatch
import mercurial.ui
except ImportError:
mercurial = None
try:
# mercurial >= 1.2
from mercurial.util import version
except ImportError:
try:
# mercurial <= 1.1.2
from mercurial.version import get_version as version
except ImportError:
version = 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):
""":class:`base.VCS` implementation for Mercurial.
"""
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 version == None:
return None
return 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
cwd = os.getcwd()
mercurial.dispatch.dispatch(fullargs)
os.chdir(cwd)
sys.stdout = stdout
return tmp_stdout.getvalue().rstrip('\n')
def _vcs_get_user_id(self):
output = self._u_invoke_client(
'showconfig', 'ui.username').rstrip('\n')
if output != '':
return output
return None
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):
manifest = self._u_invoke_client(
'manifest', '--rev', revision).splitlines()
return self._u_find_id_from_manifest(id, manifest, 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
def _diff(self, revision):
return self._u_invoke_client(
'diff', '-r', revision, '--git')
def _parse_diff(self, diff_text):
"""_parse_diff(diff_text) -> (new,modified,removed)
`new`, `modified`, and `removed` are lists of files.
Example diff text::
diff --git a/.be/dir/bugs/modified b/.be/dir/bugs/modified
--- a/.be/dir/bugs/modified
+++ b/.be/dir/bugs/modified
@@ -1,1 +1,1 @@ some value to be modified
-some value to be modified
\ No newline at end of file
+a new value
\ No newline at end of file
diff --git a/.be/dir/bugs/moved b/.be/dir/bugs/moved
deleted file mode 100644
--- a/.be/dir/bugs/moved
+++ /dev/null
@@ -1,1 +0,0 @@
-this entry will be moved
\ No newline at end of file
diff --git a/.be/dir/bugs/moved2 b/.be/dir/bugs/moved2
new file mode 100644
--- /dev/null
+++ b/.be/dir/bugs/moved2
@@ -0,0 +1,1 @@
+this entry will be moved
\ No newline at end of file
diff --git a/.be/dir/bugs/new b/.be/dir/bugs/new
new file mode 100644
--- /dev/null
+++ b/.be/dir/bugs/new
@@ -0,0 +1,1 @@
+this entry is new
\ No newline at end of file
diff --git a/.be/dir/bugs/removed b/.be/dir/bugs/removed
deleted file mode 100644
--- a/.be/dir/bugs/removed
+++ /dev/null
@@ -1,1 +0,0 @@
-this entry will be deleted
\ No newline at end of file
"""
new = []
modified = []
removed = []
lines = diff_text.splitlines()
for i,line in enumerate(lines):
if not line.startswith('diff '):
continue
file_a,file_b = line.split()[-2:]
assert file_a.startswith('a/'), \
'missformed file_a %s' % file_a
assert file_b.startswith('b/'), \
'missformed file_a %s' % file_b
file = file_a[2:]
assert file_b[2:] == file, \
'diff file missmatch %s != %s' % (file_a, file_b)
if lines[i+1].startswith('new '):
new.append(file)
elif lines[i+1].startswith('deleted '):
removed.append(file)
else:
modified.append(file)
return (new,modified,removed)
def _vcs_changed(self, revision):
return self._parse_diff(self._diff(revision))
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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