Mercurial > hg
view tests/test-revlog.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 | 29b0e9cd02f4 |
children | 95c4cca641f6 |
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$ hg init empty-repo $ cd empty-repo Flags on revlog version 0 are rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x01\x00\x00') and None $ hg log abort: unknown flags (0x01) in version 0 revlog 00changelog.i! [255] Unknown flags on revlog version 1 are rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x04\x00\x01') and None $ hg log abort: unknown flags (0x04) in version 1 revlog 00changelog.i! [255] Unknown version is rejected >>> with open('.hg/store/00changelog.i', 'wb') as fh: ... fh.write(b'\x00\x00\x00\x02') and None $ hg log abort: unknown version (2) in revlog 00changelog.i! [255] $ cd .. Test for CVE-2016-3630 $ hg init >>> import codecs >>> open("a.i", "wb").write(codecs.decode(codecs.decode( ... b"""eJxjYGZgZIAAYQYGxhgom+k/FMx8YKx9ZUaKSOyqo4cnuKb8mbqHV5cBCVTMWb1Cwqkhe4Gsg9AD ... Joa3dYtcYYYBAQ8Qr4OqZAYRICPTSr5WKd/42rV36d+8/VmrNpv7NP1jQAXrQE4BqQUARngwVA==""", ... "base64"), "zlib")) and None $ hg debugrevlogindex a.i rev linkrev nodeid p1 p2 0 2 99e0332bd498 000000000000 000000000000 1 3 6674f57a23d8 99e0332bd498 000000000000 >>> from mercurial import revlog, vfs >>> tvfs = vfs.vfs(b'.') >>> tvfs.options = {b'revlogv1': True} >>> rl = revlog.revlog(tvfs, b'a.i') >>> rl.revision(1) mpatchError(*'patch cannot be decoded'*) (glob)