Mercurial > hg-stable
view tests/test-rebase-named-branches.t @ 25774:4f8c20fe66f0
shelve: keep old backups if timestamp can't decide exact order of them
Before this patch, backups to be discarded are decided by steps below
at 'hg unshelve' or so:
1. list '(st_mtime, filename)' tuples of each backups up
2. sort list of these tuples, and
3. discard backups other than 'maxbackups' ones at the end of list
This doesn't work well in the case below:
- "sort by name" order differs from actual backup-ing order, and
- some of backups have same timestamp
For example, 'test-shelve.t' satisfies the former condition:
- 'default-01' < 'default-1' in "sort by name" order
- 'default-1' < 'default-01' in actual backup-ing order
Then, 'default-01' is discarded instead of 'default-1' unexpectedly,
if they have same timestamp. This failure appears occasionally,
because the most important condition "same timestamp" is timing
critical.
To avoid such unexpected discarding, this patch keeps old backups if
timestamp can't decide exact order of them.
Timestamp of the border backup (= the oldest one of recent
'maxbackups' ones) as 'bordermtime' is used to examine whether
timestamp can decide exact order of backups.
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Mon, 13 Jul 2015 23:34:12 +0900 |
parents | 701df761aa94 |
children | b2415e94b2f5 |
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$ cat >> $HGRCPATH <<EOF > [extensions] > rebase= > > [phases] > publish=False > > [alias] > tglog = log -G --template "{rev}: '{desc}' {branches}\n" > EOF $ hg init a $ cd a $ hg unbundle "$TESTDIR/bundles/rebase.hg" adding changesets adding manifests adding file changes added 8 changesets with 7 changes to 7 files (+2 heads) (run 'hg heads' to see heads, 'hg merge' to merge) $ hg up tip 3 files updated, 0 files merged, 0 files removed, 0 files unresolved $ cd .. $ hg clone -q -u . a a1 $ cd a1 $ hg update 3 3 files updated, 0 files merged, 2 files removed, 0 files unresolved $ hg branch dev-one marked working directory as branch dev-one (branches are permanent and global, did you want a bookmark?) $ hg ci -m 'dev-one named branch' $ hg update 7 2 files updated, 0 files merged, 3 files removed, 0 files unresolved $ hg branch dev-two marked working directory as branch dev-two $ echo x > x $ hg add x $ hg ci -m 'dev-two named branch' $ hg tglog @ 9: 'dev-two named branch' dev-two | | o 8: 'dev-one named branch' dev-one | | o | 7: 'H' | | +---o 6: 'G' | | | o | | 5: 'F' | | | +---o 4: 'E' | | | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' Branch name containing a dash (issue3181) $ hg rebase -b dev-two -d dev-one --keepbranches rebasing 5:24b6387c8c8c "F" rebasing 6:eea13746799a "G" rebasing 7:02de42196ebe "H" rebasing 9:cb039b7cae8e "dev-two named branch" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/24b6387c8c8c-24cb8001-backup.hg (glob) $ hg tglog @ 9: 'dev-two named branch' dev-two | o 8: 'H' | | o 7: 'G' |/| o | 6: 'F' | | o | 5: 'dev-one named branch' dev-one | | | o 4: 'E' | | o | 3: 'D' | | o | 2: 'C' | | o | 1: 'B' |/ o 0: 'A' $ hg rebase -s dev-one -d 0 --keepbranches rebasing 5:643fc9128048 "dev-one named branch" note: rebase of 5:643fc9128048 created no changes to commit rebasing 6:24de4aff8e28 "F" rebasing 7:4b988a958030 "G" rebasing 8:31d0e4ba75e6 "H" rebasing 9:9e70cd31750f "dev-two named branch" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/643fc9128048-c4ee9ef5-backup.hg (glob) $ hg tglog @ 8: 'dev-two named branch' dev-two | o 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg update 3 3 files updated, 0 files merged, 3 files removed, 0 files unresolved $ hg branch dev-one marked working directory as branch dev-one $ hg ci -m 'dev-one named branch' $ hg tglog @ 9: 'dev-one named branch' dev-one | | o 8: 'dev-two named branch' dev-two | | | o 7: 'H' | | | | o 6: 'G' | |/| | o | 5: 'F' | | | | | o 4: 'E' | |/ o | 3: 'D' | | o | 2: 'C' | | o | 1: 'B' |/ o 0: 'A' $ hg rebase -b 'max(branch("dev-two"))' -d dev-one --keepbranches rebasing 5:77854864208c "F" rebasing 6:63b4f9c788a1 "G" rebasing 7:87861e68abd3 "H" rebasing 8:ec00d4e0efca "dev-two named branch" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/77854864208c-74d59436-backup.hg (glob) $ hg tglog o 9: 'dev-two named branch' dev-two | o 8: 'H' | | o 7: 'G' |/| o | 6: 'F' | | @ | 5: 'dev-one named branch' dev-one | | | o 4: 'E' | | o | 3: 'D' | | o | 2: 'C' | | o | 1: 'B' |/ o 0: 'A' $ hg rebase -s 'max(branch("dev-one"))' -d 0 --keepbranches rebasing 5:643fc9128048 "dev-one named branch" note: rebase of 5:643fc9128048 created no changes to commit rebasing 6:05584c618d45 "F" rebasing 7:471695f5257d "G" rebasing 8:8382a539a2df "H" rebasing 9:11f718458b32 "dev-two named branch" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/643fc9128048-177f3c5c-backup.hg (glob) $ hg tglog o 8: 'dev-two named branch' dev-two | o 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ @ 0: 'A' Rebasing descendant onto ancestor across different named branches $ hg rebase -s 1 -d 8 --keepbranches rebasing 1:42ccdea3bb16 "B" rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | o 6: 'B' | o 5: 'dev-two named branch' dev-two | o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ @ 0: 'A' $ hg rebase -s 4 -d 5 abort: source is ancestor of destination [255] $ hg rebase -s 5 -d 4 rebasing 5:32d3b0de7f37 "dev-two named branch" rebasing 6:580fcd9fd48f "B" rebasing 7:32aba0402ed2 "C" rebasing 8:e4787b575338 "D" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/32d3b0de7f37-c37815ca-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | o 6: 'B' | o 5: 'dev-two named branch' | o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ @ 0: 'A' Reopen branch by rebase $ hg up -qr3 $ hg branch -q b $ hg ci -m 'create b' $ hg ci -m 'close b' --close $ hg rebase -b 8 -d b reopening closed branch head ea9de14a36c6 rebasing 4:86693275b2ef "H" rebasing 5:2149726d0970 "dev-two named branch" rebasing 6:81e55225e95d "B" rebasing 7:09eda3dc3195 "C" rebasing 8:31298fc9d159 "D" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/86693275b2ef-f9fcf4e2-backup.hg (glob) $ cd .. Rebase to other head on branch Set up a case: $ hg init case1 $ cd case1 $ touch f $ hg ci -qAm0 $ hg branch -q b $ echo >> f $ hg ci -qAm 'b1' $ hg up -qr -2 $ hg branch -qf b $ hg ci -qm 'b2' $ hg up -qr -3 $ hg branch -q c $ hg ci -m 'c1' $ hg tglog @ 3: 'c1' c | | o 2: 'b2' b |/ | o 1: 'b1' b |/ o 0: '0' $ hg clone -q . ../case2 rebase 'b2' to another lower branch head $ hg up -qr 2 $ hg rebase nothing to rebase - working directory parent is also destination [1] $ hg tglog o 3: 'c1' c | | @ 2: 'b2' b |/ | o 1: 'b1' b |/ o 0: '0' rebase 'b1' on top of the tip of the branch ('b2') - ignoring the tip branch ('c1') $ cd ../case2 $ hg up -qr 1 $ hg rebase rebasing 1:40039acb7ca5 "b1" saved backup bundle to $TESTTMP/case2/.hg/strip-backup/40039acb7ca5-342b72d1-backup.hg (glob) $ hg tglog @ 3: 'b1' b | | o 2: 'c1' c | | o | 1: 'b2' b |/ o 0: '0' rebase 'c1' to the branch head 'c2' that is closed $ hg branch -qf c $ hg ci -qm 'c2 closed' --close $ hg up -qr 2 $ hg tglog _ 4: 'c2 closed' c | o 3: 'b1' b | | @ 2: 'c1' c | | o | 1: 'b2' b |/ o 0: '0' $ hg rebase nothing to rebase - working directory parent is also destination [1] $ hg tglog _ 4: 'c2 closed' c | o 3: 'b1' b | | @ 2: 'c1' c | | o | 1: 'b2' b |/ o 0: '0' $ cd ..