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localrepo: strip now incrementally updates the branchheads cache...
localrepo: strip now incrementally updates the branchheads cache Destroying history via strip used to invalidate the branchheads cache, causing it to be regenerated the next time it is read. This is expensive in large repos. This change converts strip to pass info to localrepo.destroyed() to enable to it to incrementally update the cache, improving the performance of strip and other operations that depend on it (e.g., rebase). This change also strengthens a bit the integrity checking of the branchheads cache when it is read, by rejecting the cache if it has nodes in it that no longer exist.
Thomas Arendsen Hein - - Load All Authors

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r16355:cb1475e7 stable
r16716:0311a6ab default
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test-merge-types.t
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$ "$TESTDIR/hghave" symlink execbit || exit 80
$ hg init
$ echo a > a
$ hg ci -Amadd
adding a
$ chmod +x a
$ hg ci -mexecutable
$ hg up 0
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ rm a
$ ln -s symlink a
$ hg ci -msymlink
created new head
$ hg merge --debug
searching for copies back to rev 1
resolving manifests
overwrite: False, partial: False
ancestor: c334dc3be0da, local: 521a1e40188f+, remote: 3574f3e69b1c
conflicting flags for a
(n)one, e(x)ec or sym(l)ink? n
a: update permissions -> e
updating: a 1/1 files (100.00%)
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
Symlink is local parent, executable is other:
$ if [ -h a ]; then
> echo a is a symlink
> $TESTDIR/readlink.py a
> elif [ -x a ]; then
> echo a is executable
> else
> echo "a has no flags (default for conflicts)"
> fi
a has no flags (default for conflicts)
$ hg update -C 1
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge --debug
searching for copies back to rev 1
resolving manifests
overwrite: False, partial: False
ancestor: c334dc3be0da, local: 3574f3e69b1c+, remote: 521a1e40188f
conflicting flags for a
(n)one, e(x)ec or sym(l)ink? n
a: remote is newer -> g
updating: a 1/1 files (100.00%)
getting a
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
Symlink is other parent, executable is local:
$ if [ -h a ]; then
> echo a is a symlink
> $TESTDIR/readlink.py a
> elif [ -x a ]; then
> echo a is executable
> else
> echo "a has no flags (default for conflicts)"
> fi
a has no flags (default for conflicts)
Update to link without local change should get us a symlink (issue3316):
$ hg up -C 0
$ hg up
$ hg st
Update to link with local change should cause a merge prompt (issue3200):
$ hg up -C 0
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ echo data > a
$ HGMERGE= hg up -y --debug
searching for copies back to rev 2
resolving manifests
overwrite: False, partial: False
ancestor: c334dc3be0da, local: c334dc3be0da+, remote: 521a1e40188f
a: versions differ -> m
preserving a for resolve of a
updating: a 1/1 files (100.00%)
(couldn't find merge tool hgmerge|tool hgmerge can't handle symlinks) (re)
picked tool 'internal:prompt' for a (binary False symlink True)
no tool found to merge a
keep (l)ocal or take (o)ther? l
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
$ hg diff --git
diff --git a/a b/a
old mode 120000
new mode 100644
--- a/a
+++ b/a
@@ -1,1 +1,1 @@
-symlink
\ No newline at end of file
+data