color: give colours to the grep.inserted and grep.deleted labels
I find the "bold" makes it stand out a bit more when the green is next
to the line number.
Note that these labels are applied before the grep.change label, which
is now disabled. To get the old colour, users can restore
[color]
grep.change = green dim
to their hgrc.
# 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