Mercurial > hg
view tests/test-rebase-named-branches.t @ 28240:1ac8ce137377
changegroup: fix treemanifests on merges
The current code for generating treemanifest revisions takes the list
of files in the changeset and finds the directories from them. This
does not work for merges, since a merge may pick file A from one side
and file B from another and neither of them would appear in the
changeset's "files" list, but the manifest would still change.
Fix this by instead walking the root manifest log for all needed
revisions, storing all needed file and subdirectory revisions, then
recursively visiting the subdirectories. This also turns out to be
faster: cloning a version of hg core converted to treemanifests went
from ~28s to ~19s (timing somewhat unfair: before this patch, timed
until crash; after this patch, timed until manifests complete).
The new algorithm is used only on treemanifest repos. Although it
works equally well on flat manifests, we leave the iteration over
files in the changeset for flat manifests for now.
author | Martin von Zweigbergk <martinvonz@google.com> |
---|---|
date | Fri, 12 Feb 2016 23:09:09 -0800 |
parents | fac3a24be50e |
children | 65d93d712777 |
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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" 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 @ 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 update 3 3 files updated, 0 files merged, 3 files removed, 0 files unresolved $ hg branch -f dev-one marked working directory as branch dev-one $ hg ci -m 'dev-one named branch' created new head $ hg tglog @ 10: 'dev-one named branch' dev-one | | o 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 -b 'max(branch("dev-two"))' -d dev-one --keepbranches rebasing 5:bc8139ee757c "dev-one named branch" note: rebase of 5:bc8139ee757c created no changes to commit rebasing 6:42aa3cf0fa7a "F" rebasing 7:1a1e6f72ec38 "G" rebasing 8:904590360559 "H" rebasing 9:59c2e59309fe "dev-two named branch" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/bc8139ee757c-f11c1080-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" rebasing 6:679f28760620 "F" rebasing 7:549f007a9f5f "G" rebasing 8:12b2bc666e20 "H" rebasing 9:71325f8bc082 "dev-two named branch" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/643fc9128048-6cdd1a52-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 up -r 0 > /dev/null Rebasing descendant onto ancestor across different named branches $ hg rebase -s 1 -d 9 --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 9: 'D' | o 8: 'C' | o 7: 'B' | o 6: 'dev-two named branch' dev-two | o 5: 'H' | | o 4: 'G' |/| o | 3: 'F' | | o | 2: 'dev-one named branch' dev-one | | | o 1: 'E' |/ @ 0: 'A' $ hg rebase -s 5 -d 6 abort: source is ancestor of destination [255] $ hg rebase -s 6 -d 5 rebasing 6:3944801ae4ea "dev-two named branch" rebasing 7:3bdb949809d9 "B" rebasing 8:a0d543090fa4 "C" rebasing 9:e9f862ce8bad "D" (tip) saved backup bundle to $TESTTMP/a1/.hg/strip-backup/3944801ae4ea-fb46ed74-backup.hg (glob) $ hg tglog o 9: 'D' | o 8: 'C' | o 7: 'B' | o 6: 'dev-two named branch' | o 5: 'H' | | o 4: 'G' |/| o | 3: 'F' | | o | 2: 'dev-one named branch' dev-one | | | 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 2b586e70108d rebasing 5:8e279d293175 "H" rebasing 6:c57724c84928 "dev-two named branch" rebasing 7:160b0930ccc6 "B" rebasing 8:810110211f50 "C" rebasing 9:e522577ccdbd "D" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/8e279d293175-b023e27c-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 rebasing 2:792845bb77ee "b2" note: rebase of 2:792845bb77ee created no changes to commit saved backup bundle to $TESTTMP/case1/.hg/strip-backup/792845bb77ee-627120ee-backup.hg (glob) $ hg tglog o 2: 'c1' c | | @ 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 abort: branch 'c' has one head - please rebase to an explicit rev (run 'hg heads' to see all heads) [255] $ hg tglog _ 4: 'c2 closed' c | o 3: 'b1' b | | @ 2: 'c1' c | | o | 1: 'b2' b |/ o 0: '0' $ cd ..