Mercurial > hg
view tests/test-convert-bzr-114.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 | d1f88ae495b4 |
children | 7a9cbb315d84 |
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$ "$TESTDIR/hghave" bzr114 || exit 80 $ . "$TESTDIR/bzr-definitions" The file/directory replacement can only be reproduced on bzr >= 1.4. Merge it back in test-convert-bzr-directories once this version becomes mainstream. replace file with dir $ mkdir test-replace-file-with-dir $ cd test-replace-file-with-dir $ bzr init -q source $ cd source $ echo d > d $ bzr add -q d $ bzr commit -q -m 'add d file' $ rm d $ mkdir d $ bzr add -q d $ bzr commit -q -m 'replace with d dir' $ echo a > d/a $ bzr add -q d/a $ bzr commit -q -m 'add d/a' $ cd .. $ hg convert source source-hg initializing destination source-hg repository scanning source... sorting... converting... 2 add d file 1 replace with d dir 0 add d/a $ manifest source-hg tip % manifest of tip 644 d/a $ cd source-hg $ hg update 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd ../..