Mercurial > hg
view tests/test-pull-update.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 | f2719b387380 |
children | 76df01e56e7f |
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$ hg init t $ cd t $ echo 1 > foo $ hg ci -Am m adding foo $ cd .. $ hg clone t tt updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd tt $ echo 1.1 > foo $ hg ci -Am m $ cd ../t $ echo 1.2 > foo $ hg ci -Am m Should not update: $ hg pull -u ../tt pulling from ../tt searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) not updating: crosses branches (merge branches or update --check to force update) $ cd ../tt Should not update: $ hg pull -u ../t pulling from ../t searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (+1 heads) not updating: crosses branches (merge branches or update --check to force update) $ HGMERGE=true hg merge merging foo 0 files updated, 1 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -mm $ cd ../t Should work: $ hg pull -u ../tt pulling from ../tt searching for changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files (-1 heads) 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd ..