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dirstate-v2: Add a variant of some tests, that uses the new format...
dirstate-v2: Add a variant of some tests, that uses the new format With this, the new format receives some testing every time someone runs tests with Rust extensions enabled, including on CI. Differential Revision: https://phab.mercurial-scm.org/D10720

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test-dirstate-race2.t
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/ tests / test-dirstate-race2.t
#testcases dirstate-v1 dirstate-v1-tree dirstate-v2
#if dirstate-v1-tree
#require rust
$ echo '[experimental]' >> $HGRCPATH
$ echo 'dirstate-tree.in-memory=1' >> $HGRCPATH
#endif
#if dirstate-v2
#require rust
$ echo '[format]' >> $HGRCPATH
$ echo 'exp-dirstate-v2=1' >> $HGRCPATH
#endif
Checking the size/permissions/file-type of files stored in the
dirstate after an update where the files are changed concurrently
outside of hg's control.
$ hg init repo
$ cd repo
$ echo a > a
$ hg commit -qAm _
$ echo aa > a
$ hg commit -m _
$ hg debugdirstate --no-dates
n 644 3 (set |unset) a (re)
$ cat >> $TESTTMP/dirstaterace.py << EOF
> from mercurial import (
> extensions,
> merge,
> )
> def extsetup(ui):
> extensions.wrapfunction(merge, 'applyupdates', wrap)
> def wrap(orig, *args, **kwargs):
> res = orig(*args, **kwargs)
> with open("a", "w"):
> pass # just truncate the file
> return res
> EOF
Do an update where file 'a' is changed between hg writing it to disk
and hg writing the dirstate. The dirstate is correct nonetheless, and
so hg status correctly shows a as clean.
$ hg up -r 0 --config extensions.race=$TESTTMP/dirstaterace.py
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg debugdirstate --no-dates
n 644 2 (set |unset) a (re)
$ echo a > a; hg status; hg diff