tests: support passing testcase after .t paths that have path separators
This probably could have been implemented by changing the regex above this bit
of code, but I wasn't sure if it would end up handling various OSes correctly,
so I decided to go with this version instead.
Previously:
$ tests/run-tests.py tests/test-ssh.t -l
running 2 tests using 2 parallel processes
..
# Ran 2 tests, 0 skipped, 0 failed.
$ tests/run-tests.py tests/test-ssh.t#sshv1 -l
running 0 tests using 0 parallel processes
# Ran 0 tests, 0 skipped, 0 failed.
Now:
$ tests/run-tests.py tests/test-ssh.t -l
running 2 tests using 2 parallel processes
..
# Ran 2 tests, 0 skipped, 0 failed.
$ tests/run-tests.py tests/test-ssh.t#sshv1 -l
running 1 tests using 1 parallel processes
.
# Ran 1 tests, 0 skipped, 0 failed.
Differential Revision: https://phab.mercurial-scm.org/D5535
# Support code for event tracing in Mercurial. Lives in demandimport
# so it can also be used in demandimport.
#
# Copyright 2018 Google LLC.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import contextlib
import os
_pipe = None
_checked = False
@contextlib.contextmanager
def log(whencefmt, *whenceargs):
global _pipe, _session, _checked
if _pipe is None:
if _checked:
yield
return
_checked = True
if 'HGCATAPULTSERVERPIPE' not in os.environ:
yield
return
_pipe = open(os.environ['HGCATAPULTSERVERPIPE'], 'w', 1)
_session = os.environ.get('HGCATAPULTSESSION', 'none')
whence = whencefmt % whenceargs
try:
# Both writes to the pipe are wrapped in try/except to ignore
# errors, as we can see mysterious errors in here if the pager
# is active. Presumably other conditions could trigger
# problems too.
try:
_pipe.write('START %s %s\n' % (_session, whence))
except IOError:
pass
yield
finally:
try:
_pipe.write('END %s %s\n' % (_session, whence))
except IOError:
pass