Mercurial > hg
view tests/test-bookmarks-merge.t @ 21990:48e32c2c499b stable
context: call normal on the right object
dirstate.normal is the method that marks files as unchanged/normal.
Rev 20a30cd41d21 started caching dirstate.normal in order to improve
performance. However, there was an error in the patch: taking the wlock, under
some conditions depending on platform, can cause a new dirstate object to be
created. Caching dirstate.normal before calling wlock would then cause the
fixup calls below to be on the old dirstate object, effectively disappearing
into the ether.
On Unix and Unix-like OSes, the condition under which we create a new dirstate
object is 'the dirstate file has been modified since the last time we opened
it'. This happens pretty rarely, so the object is usually the same -- there's
little impact.
On Windows, the condition is 'always'. This means files in the lookup state are
never marked normal, so the bug has a serious performance impact since all the
files in the lookup state are re-read every time hg status is run.
author | Siddharth Agarwal <sid0@fb.com> |
---|---|
date | Fri, 01 Aug 2014 18:30:18 -0700 |
parents | 10f15e34d86c |
children | 8197b395710e |
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# init $ hg init $ echo a > a $ hg add a $ hg commit -m'a' $ echo b > b $ hg add b $ hg commit -m'b' $ hg up -C 0 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo c > c $ hg add c $ hg commit -m'c' created new head # test merging of diverged bookmarks $ hg bookmark -r 1 "c@diverge" $ hg bookmark -r 1 b $ hg bookmark c $ hg bookmarks b 1:d2ae7f538514 * c 2:d36c0562f908 c@diverge 1:d2ae7f538514 $ hg merge "c@diverge" 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -m'merge' $ hg bookmarks b 1:d2ae7f538514 * c 3:b8f96cf4688b $ hg up -C 3 0 files updated, 0 files merged, 0 files removed, 0 files unresolved (leaving bookmark c) $ echo d > d $ hg add d $ hg commit -m'd' $ hg up -C 3 0 files updated, 0 files merged, 1 files removed, 0 files unresolved $ echo e > e $ hg add e $ hg commit -m'e' created new head $ hg up -C 5 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg bookmark e $ hg bookmarks b 1:d2ae7f538514 c 3:b8f96cf4688b * e 5:26bee9c5bcf3 # the picked side is bookmarked $ hg up -C 4 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (leaving bookmark e) $ hg merge abort: heads are bookmarked - please merge with an explicit rev (run 'hg heads' to see all heads) [255] # our revision is bookmarked $ hg up -C e 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (activating bookmark e) $ hg merge abort: no matching bookmark to merge - please merge with an explicit rev or bookmark (run 'hg heads' to see all heads) [255] # merge bookmark heads $ hg up -C 4 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (leaving bookmark e) $ echo f > f $ hg commit -Am "f" adding f $ hg bookmarks -r 4 "e@diverged" $ hg up -q -C "e@diverged" $ hg merge 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg parents changeset: 4:a0546fcfe0fb bookmark: e@diverged user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: d changeset: 5:26bee9c5bcf3 bookmark: e parent: 3:b8f96cf4688b user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: e $ hg up -C e 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (activating bookmark e) $ hg bookmarks b 1:d2ae7f538514 c 3:b8f96cf4688b * e 5:26bee9c5bcf3 e@diverged 4:a0546fcfe0fb $ hg merge 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg commit -m'merge' $ hg bookmarks b 1:d2ae7f538514 c 3:b8f96cf4688b * e 7:ca784329f0ba # test warning when all heads are inactive bookmarks $ hg up -C 6 1 files updated, 0 files merged, 1 files removed, 0 files unresolved (leaving bookmark e) $ echo g > g $ hg commit -Am 'g' adding g $ hg bookmark -i g $ hg bookmarks b 1:d2ae7f538514 c 3:b8f96cf4688b e 7:ca784329f0ba g 8:04dd21731d95 $ hg heads changeset: 8:04dd21731d95 bookmark: g tag: tip parent: 6:be381d1126a0 user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: g changeset: 7:ca784329f0ba bookmark: e parent: 5:26bee9c5bcf3 parent: 4:a0546fcfe0fb user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: merge $ hg merge abort: heads are bookmarked - please merge with an explicit rev (run 'hg heads' to see all heads) [255]