def svn_last_changed_revision(project_path='.'):
"""
The last Subversion revision in which a particular project was changed.
:param str project_path:
A file path to a project.
:rtype: :obj:`int`
:raise IncompatibleVcsError:
Raised if the VCS of the project at ``project_path`` is not
Subversion or git-svn.
"""
SUPPORTED_SYSTEMS = ('svn', 'git-svn')
vcs = guess_vcs(project_path)
if vcs not in SUPPORTED_SYSTEMS:
raise IncompatibleVcsError(vcs, SUPPORTED_SYSTEMS)
if vcs == 'svn':
svn_cmdargs = ('svn',)
elif vcs == 'git-svn':
svn_cmdargs = ('git', 'svn')
else:
assert False
cmdargs = svn_cmdargs + ('info',)
svn_proc = _subprocess.Popen(cmdargs, stdout=_subprocess.PIPE)
grep_proc = _subprocess.Popen(('grep', 'Last Changed Rev'),
stdin=svn_proc.stdout,
stdout=_subprocess.PIPE)
sed_proc = _subprocess.Popen(('sed', 's/[^0-9]//g'),
stdin=grep_proc.stdout,
stdout=_subprocess.PIPE)
proc_output = sed_proc.communicate()[0]
revision_str = proc_output.strip()
# handle missing "Last Changed Rev"
# this is known to happen with git-svn before the project's second
# commit
if revision_str == '':
cmdargs = svn_cmdargs + ('log', '--incremental', '--limit', '1')
svn_proc = _subprocess.Popen(cmdargs, stdout=_subprocess.PIPE)
proc_output = svn_proc.communicate()[0]
revision_str = proc_output.split()[1][1:]
try:
revision = int(revision_str)
except ValueError:
raise Error('invalid Subversion revision {!r} from `{}`'
.format(revision_str,
' '.join(_shquote(arg) for arg in cmdargs)))
return revision
def _start(self, fork=False):
pidfilepath = None
with open(_os.path.join(self.configloc, 'cn=config.ldif'), 'r') \
as config_ldif:
for line in config_ldif.readlines():
match = _re.match(r'olcPidFile:\s+(?P<pidfile>.*)\n', line)
if match:
pidfilepath = match.group('pidfile')
break
slapd_args = \
('slapd',
'-h',
' '.join(self.uris),
'-F',
self.configloc,
'-d',
'239' if _logging.getLogger().isEnabledFor(_logging.DEBUG)
else '32768')
if fork:
slapd_proc = _subprocess.Popen(slapd_args, stdout=_subprocess.PIPE,
stderr=_subprocess.STDOUT,
close_fds=True)
self._slapd_proc = slapd_proc
slapd_output = ''
slapd_started = False
while not slapd_started:
slapd_proc.poll()
if slapd_proc.returncode is not None:
slapd_output += slapd_proc.stdout.read()
raise RuntimeError('cannot start OpenLDAP service via'
' {!r}: slapd returned exit code {}'
' with output\n{}'
.format(' '.join(_shquote(arg)
for arg
in slapd_args),
slapd_proc.returncode,
slapd_output))
current_poll_period_starttime = _time()
while _time() - current_poll_period_starttime \
< self._START_POLL_PERIOD:
line = slapd_proc.stdout.readline()
slapd_output += line
_logging.debug('slapd: ' + line.rstrip('\n'))
if 'slapd starting' in line:
slapd_started = True
slapd_proc.stdout.close()
break
# CAVEAT: sleep even after seeing ``slapd starting`` because on
# some systems that message is emitted slightly before
# slapd can actually accept connections
_sleep(self._START_POLL_PERIOD)
if pidfilepath:
with open(pidfilepath, 'r') as pidfile:
pid = pidfile.read().strip()
else:
pid = slapd_proc.pid
self._set_status('running', pid=pid)
else:
_os.execvp(slapd_args[0], slapd_args)
