Mercurial > hg
view tests/test-journal-exists.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 | acba1281e064 |
children | e54a078153f7 |
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$ hg init $ echo a > a $ hg ci -Am0 adding a $ hg -q clone . foo $ touch .hg/store/journal $ echo foo > a $ hg ci -Am0 abort: abandoned transaction found - run hg recover! [255] $ hg recover rolling back interrupted transaction checking changesets checking manifests crosschecking files in changesets and manifests checking files 1 files, 1 changesets, 1 total revisions Check that zero-size journals are correctly aborted: #if unix-permissions $ hg bundle -qa repo.hg $ chmod -w foo/.hg/store/00changelog.i $ hg -R foo unbundle repo.hg adding changesets abort: Permission denied: $TESTTMP/foo/.hg/store/.00changelog.i-* (glob) [255] $ if test -f foo/.hg/store/journal; then echo 'journal exists :-('; fi #endif