Mercurial > hg
view tests/test-ui-color.py @ 44261:04a3ae7aba14
chg: force-set LC_CTYPE on server start to actual value from the environment
Python 3.7+ will "coerce" the LC_CTYPE variable in many instances, and this can
cause issues with chg being able to start up. D7550 attempted to fix this, but a
combination of a misreading of the way that python3.7 does the coercion and an
untested state (LC_CTYPE being set to an invalid value) meant that this was
still not quite working.
This change will cause differences between chg and hg: hg will have the LC_CTYPE
environment variable coerced, while chg will not. This is unlikely to cause any
detectable behavior differences in what Mercurial itself outputs, but it does
have two known effects:
- When using hg, the coerced LC_CTYPE will be passed to subprocesses, even
non-python ones. Using chg will remove the coercion, and this will not
happen. This is arguably more correct behavior on chg's part.
- On macOS, if you set your region to Brazil but your language to English,
this isn't representable in locale strings, so macOS sets LC_CTYPE=UTF-8. If
this value is passed along when ssh'ing to a non-macOS machine, some
functions (such as locale.setlocale()) may raise an exception due to an
unsupported locale setting. This is most easily encountered when doing an
interactive commit/split/etc. when using ui.interface=curses.
Differential Revision: https://phab.mercurial-scm.org/D8039
author | Kyle Lippincott <spectral@google.com> |
---|---|
date | Wed, 29 Jan 2020 13:39:50 -0800 |
parents | 86e4daa2d54c |
children | 6000f5b25c9b |
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from __future__ import absolute_import, print_function import os from mercurial import ( dispatch, ui as uimod, ) from mercurial.utils import stringutil # ensure errors aren't buffered testui = uimod.ui() testui.pushbuffer() testui.writenoi18n(b'buffered\n') testui.warnnoi18n(b'warning\n') testui.write_err(b'error\n') print(stringutil.pprint(testui.popbuffer(), bprefix=True).decode('ascii')) # test dispatch.dispatch with the same ui object hgrc = open(os.environ["HGRCPATH"], 'wb') hgrc.write(b'[extensions]\n') hgrc.write(b'color=\n') hgrc.close() ui_ = uimod.ui.load() ui_.setconfig(b'ui', b'formatted', b'True') # we're not interested in the output, so write that to devnull ui_.fout = open(os.devnull, 'wb') # call some arbitrary command just so we go through # color's wrapped _runcommand twice. def runcmd(): dispatch.dispatch(dispatch.request([b'version', b'-q'], ui_)) runcmd() print("colored? %s" % (ui_._colormode is not None)) runcmd() print("colored? %s" % (ui_._colormode is not None))