Mercurial > hg
view tests/test-casecollision.t @ 18136:f23dea2b296e
copies: do not track backward copies, only renames (issue3739)
The inverse of a rename is a rename, but the inverse of a copy is not a copy.
Presenting it as such -- in particular, stuffing it into the same dict as real
copies -- causes bugs because other code starts believing the inverse copies
are real.
The only test whose output changes is test-mv-cp-st-diff.t. When a backwards
status -C command is run where a copy is involved, the inverse copy (which was
hitherto presented as a real copy) is no longer displayed.
Keeping track of inverse copies is useful in some situations -- composability
of diffs, for example, since adding "a" followed by an inverse copy "b" to "a"
is equivalent to a rename "b" to "a". However, representing them would require
a more complex data structure than the same dict in which real copies are also
stored.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Wed, 26 Dec 2012 15:04:07 -0800 |
parents | 14e44933d175 |
children | 7a9cbb315d84 |
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run only on case-sensitive filesystems $ "$TESTDIR/hghave" no-icasefs || exit 80 test file addition with colliding case $ hg init repo1 $ cd repo1 $ echo a > a $ echo A > A $ hg add a $ hg st A a ? A $ hg add --config ui.portablefilenames=abort A abort: possible case-folding collision for A [255] $ hg st A a ? A $ hg add A warning: possible case-folding collision for A $ hg st A A A a $ hg forget A $ hg st A a ? A $ hg add --config ui.portablefilenames=no A $ hg st A A A a $ mkdir b $ touch b/c b/D $ hg add b adding b/D adding b/c $ touch b/d b/C $ hg add b/C warning: possible case-folding collision for b/C $ hg add b/d warning: possible case-folding collision for b/d $ touch b/a1 b/a2 $ hg add b adding b/a1 adding b/a2 $ touch b/A2 b/a1.1 $ hg add b/a1.1 b/A2 warning: possible case-folding collision for b/A2 $ touch b/f b/F $ hg add b/f b/F warning: possible case-folding collision for b/f $ touch g G $ hg add g G warning: possible case-folding collision for g $ mkdir h H $ touch h/x H/x $ hg add h/x H/x warning: possible case-folding collision for h/x $ touch h/s H/s $ hg add h/s $ hg add H/s warning: possible case-folding collision for H/s case changing rename must not warn or abort $ echo c > c $ hg ci -qAmx $ hg mv c C $ cd ..