Mercurial > hg
view tests/test-missing-capability.t @ 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 | d3cc9a8df63a |
children | 8d72e29ad1e0 |
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Checking how hg behaves when one side of a pull/push doesn't support some capability (because it's running an older hg version, usually). $ hg init repo1 $ cd repo1 $ echo a > a; hg add -q a; hg commit -q -m a $ hg bookmark a $ hg clone -q . ../repo2 $ cd ../repo2 $ touch $TESTTMP/disable-lookup.py $ disable_cap() { > rm -f $TESTTMP/disable-lookup.pyc # pyc caching is buggy > cat <<EOF > $TESTTMP/disable-lookup.py > from mercurial import extensions, wireprotov1server > def wcapabilities(orig, *args, **kwargs): > cap = orig(*args, **kwargs) > cap.remove(b'$1') > return cap > extensions.wrapfunction(wireprotov1server, '_capabilities', wcapabilities) > EOF > } $ cat >> ../repo1/.hg/hgrc <<EOF > [extensions] > disable-lookup = $TESTTMP/disable-lookup.py > EOF $ cat >> .hg/hgrc <<EOF > [ui] > ssh = "$PYTHON" "$TESTDIR/dummyssh" > EOF $ hg pull ssh://user@dummy/repo1 -r tip -B a pulling from ssh://user@dummy/repo1 no changes found $ disable_cap lookup $ hg pull ssh://user@dummy/repo1 -r tip -B a pulling from ssh://user@dummy/repo1 abort: other repository doesn't support revision lookup, so a rev cannot be specified. [255] $ disable_cap pushkey $ hg pull ssh://user@dummy/repo1 -r tip -B a pulling from ssh://user@dummy/repo1 abort: remote bookmark a not found! [255]