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manifest: use a size 3 LRU cache to store parsed manifests...
manifest: use a size 3 LRU cache to store parsed manifests Previously, the manifest cache would store the last manifest parsed. We could run into situations with operations like update where we would try parsing the manifest for a revision r1, then r2, then r1 again. This increases the cache size to 3 to avoid that bit of performance fragility.

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r18541:5ed6a375 default
r18604:a1141f04 default
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test-issue672.t
101 lines | 2.9 KiB | text/troff | Tads3Lexer
http://mercurial.selenic.com/bts/issue672
# 0-2-4
# \ \ \
# 1-3-5
#
# rename in #1, content change in #4.
$ hg init
$ touch 1
$ touch 2
$ hg commit -Am init # 0
adding 1
adding 2
$ hg rename 1 1a
$ hg commit -m rename # 1
$ hg co -C 0
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo unrelated >> 2
$ hg ci -m unrelated1 # 2
created new head
$ hg merge --debug 1
searching for copies back to rev 1
unmatched files in other:
1a
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
src: '1' -> dst: '1a'
checking for directory renames
resolving manifests
overwrite: False, partial: False
ancestor: 81f4b099af3d, local: c64f439569a9+, remote: c12dcd37c90a
1: other deleted -> r
1a: remote created -> g
updating: 1 1/2 files (50.00%)
removing 1
updating: 1a 2/2 files (100.00%)
getting 1a
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m merge1 # 3
$ hg co -C 2
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo hello >> 1
$ hg ci -m unrelated2 # 4
created new head
$ hg co -C 3
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge -y --debug 4
searching for copies back to rev 1
unmatched files in local:
1a
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
src: '1' -> dst: '1a' *
checking for directory renames
resolving manifests
overwrite: False, partial: False
ancestor: c64f439569a9, local: e327dca35ac8+, remote: 746e9549ea96
1a: local copied/moved to 1 -> m
preserving 1a for resolve of 1a
updating: 1a 1/1 files (100.00%)
picked tool 'internal:merge' for 1a (binary False symlink False)
merging 1a and 1 to 1a
my 1a@e327dca35ac8+ other 1@746e9549ea96 ancestor 1@81f4b099af3d
premerge successful
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg co -C 4
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge -y --debug 3
searching for copies back to rev 1
unmatched files in other:
1a
all copies found (* = to merge, ! = divergent, % = renamed and deleted):
src: '1' -> dst: '1a' *
checking for directory renames
resolving manifests
overwrite: False, partial: False
ancestor: c64f439569a9, local: 746e9549ea96+, remote: e327dca35ac8
1: remote moved to 1a -> m
preserving 1 for resolve of 1a
removing 1
updating: 1 1/1 files (100.00%)
picked tool 'internal:merge' for 1a (binary False symlink False)
merging 1 and 1a to 1a
my 1a@746e9549ea96+ other 1a@e327dca35ac8 ancestor 1@81f4b099af3d
premerge successful
0 files updated, 1 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)