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revisionbranchcache: fall back to slow path if starting readonly (issue4531)...
revisionbranchcache: fall back to slow path if starting readonly (issue4531) Transitioning to Mercurial versions with revision branch cache could be slow as long as all operations were readonly (revset queries) and the cache would be populated but not written back. Instead, fall back to using the consistently slow path when readonly and the cache doesn't exist yet. That avoids the overhead of populating the cache without writing it back. If not readonly, it will still populate all missing entries initially. That avoids repeated writing of the cache file with small updates, and it also makes sure a fully populated cache available for the readonly operations.

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r16913:f2719b38 default
r24159:5b4ed033 3.3.1 stable
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test-merge10.t
53 lines | 1.3 KiB | text/troff | Tads3Lexer
Pradeepkumar Gayam
tests: unify test-merge10
r11983 Test for changeset 9fe267f77f56ff127cf7e65dc15dd9de71ce8ceb
(merge correctly when all the files in a directory are moved
but then local changes are added in the same directory)
$ hg init a
$ cd a
$ mkdir -p testdir
$ echo a > testdir/a
$ hg add testdir/a
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg commit -m a
Pradeepkumar Gayam
tests: unify test-merge10
r11983 $ cd ..
$ hg clone a b
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd a
$ echo alpha > testdir/a
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg commit -m remote-change
Pradeepkumar Gayam
tests: unify test-merge10
r11983 $ cd ..
$ cd b
$ mkdir testdir/subdir
$ hg mv testdir/a testdir/subdir/a
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg commit -m move
Pradeepkumar Gayam
tests: unify test-merge10
r11983 $ mkdir newdir
$ echo beta > newdir/beta
$ hg add newdir/beta
Martin Geisler
tests: remove unneeded -d flags...
r12156 $ hg commit -m local-addition
Pradeepkumar Gayam
tests: unify test-merge10
r11983 $ hg pull ../a
pulling from ../a
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
(run 'hg heads' to see heads, 'hg merge' to merge)
$ hg up -C 2
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg merge
merging testdir/subdir/a and testdir/a to testdir/subdir/a
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg stat
M testdir/subdir/a
$ hg diff --nodates
Martin Geisler
tests: remove unneeded -d flags...
r12156 diff -r bc21c9773bfa testdir/subdir/a
Pradeepkumar Gayam
tests: unify test-merge10
r11983 --- a/testdir/subdir/a
+++ b/testdir/subdir/a
@@ -1,1 +1,1 @@
-a
+alpha
Mads Kiilerich
tests: add missing trailing 'cd ..'...
r16913
$ cd ..