Mercurial > hg
view tests/test-rebase-named-branches.t @ 41247:a89b20a49c13
rust-cpython: using MissingAncestors from Python code
As precedently done with LazyAncestors on cpython.rs, we test for the
presence of the 'rustext' module.
incrementalmissingrevs() has two callers within the Mercurial core:
`setdiscovery.partialdiscovery` and the `only()` revset.
This move shows a significant discovery performance improvement
in cases where the baseline is slow: using perfdiscovery on the PyPy
repos, prepared with `contrib/discovery-helper <repo> 50 100`, we
get averaged medians of 403ms with the Rust version vs 742ms without
(about 45% better).
But there are still indications that performance can be worse in cases
the baseline is fast, possibly due to the conversion from Python to
Rust and back becoming the bottleneck. We could measure this on
mozilla-central in cases were the delta is just a few changesets.
This requires confirmation, but if that's the reason, then an
upcoming `partialdiscovery` fully in Rust should solve the problem.
Differential Revision: https://phab.mercurial-scm.org/D5551
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Fri, 30 Nov 2018 14:35:57 +0100 |
parents | 4edd427f34c1 |
children | 8197b395710e |
line wrap: on
line source
$ cat >> $HGRCPATH <<EOF > [extensions] > rebase= > > [phases] > publish=False > > [alias] > tglog = log -G --template "{rev}: {node|short} '{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) new changesets cd010b8cd998:02de42196ebe (8 drafts) (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: cb039b7cae8e 'dev-two named branch' dev-two | | o 8: 643fc9128048 'dev-one named branch' dev-one | | o | 7: 02de42196ebe 'H' | | +---o 6: eea13746799a 'G' | | | o | | 5: 24b6387c8c8c 'F' | | | +---o 4: 9520eea781bc 'E' | | | o 3: 32af7686d403 'D' | | | o 2: 5fddd98957c8 'C' | | | o 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 '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-rebase.hg $ hg tglog @ 9: 9e70cd31750f 'dev-two named branch' dev-two | o 8: 31d0e4ba75e6 'H' | | o 7: 4b988a958030 'G' |/| o | 6: 24de4aff8e28 'F' | | o | 5: 643fc9128048 'dev-one named branch' dev-one | | | o 4: 9520eea781bc 'E' | | o | 3: 32af7686d403 'D' | | o | 2: 5fddd98957c8 'C' | | o | 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 '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-rebase.hg $ hg tglog @ 9: 59c2e59309fe 'dev-two named branch' dev-two | o 8: 904590360559 'H' | | o 7: 1a1e6f72ec38 'G' |/| o | 6: 42aa3cf0fa7a 'F' | | o | 5: bc8139ee757c 'dev-one named branch' dev-one | | | o 4: 9520eea781bc 'E' |/ | o 3: 32af7686d403 'D' | | | o 2: 5fddd98957c8 'C' | | | o 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 '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: 643fc9128048 'dev-one named branch' dev-one | | o 9: 59c2e59309fe 'dev-two named branch' dev-two | | | o 8: 904590360559 'H' | | | | o 7: 1a1e6f72ec38 'G' | |/| | o | 6: 42aa3cf0fa7a 'F' | | | | o | 5: bc8139ee757c 'dev-one named branch' dev-one | | | | | o 4: 9520eea781bc 'E' | |/ o | 3: 32af7686d403 'D' | | o | 2: 5fddd98957c8 'C' | | o | 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 'A' $ hg rebase -b 'max(branch("dev-two"))' -d dev-one --keepbranches rebasing 5:bc8139ee757c "dev-one named branch" note: not rebasing 5:bc8139ee757c "dev-one named branch", its destination already has all its changes 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-rebase.hg $ hg tglog o 9: 71325f8bc082 'dev-two named branch' dev-two | o 8: 12b2bc666e20 'H' | | o 7: 549f007a9f5f 'G' |/| o | 6: 679f28760620 'F' | | @ | 5: 643fc9128048 'dev-one named branch' dev-one | | | o 4: 9520eea781bc 'E' | | o | 3: 32af7686d403 'D' | | o | 2: 5fddd98957c8 'C' | | o | 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 '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-rebase.hg $ hg tglog o 9: 3944801ae4ea 'dev-two named branch' dev-two | o 8: 8e279d293175 'H' | | o 7: aeefee77ab01 'G' |/| o | 6: e908b85f3729 'F' | | @ | 5: bc8139ee757c 'dev-one named branch' dev-one | | | o 4: 9520eea781bc 'E' |/ | o 3: 32af7686d403 'D' | | | o 2: 5fddd98957c8 'C' | | | o 1: 42ccdea3bb16 'B' |/ o 0: cd010b8cd998 '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-rebase.hg $ hg tglog o 9: e9f862ce8bad 'D' | o 8: a0d543090fa4 'C' | o 7: 3bdb949809d9 'B' | o 6: 3944801ae4ea 'dev-two named branch' dev-two | o 5: 8e279d293175 'H' | | o 4: aeefee77ab01 'G' |/| o | 3: e908b85f3729 'F' | | o | 2: bc8139ee757c 'dev-one named branch' dev-one | | | o 1: 9520eea781bc 'E' |/ @ 0: cd010b8cd998 'A' $ hg rebase -s 5 -d 6 abort: source and destination form a cycle [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-rebase.hg $ hg tglog o 9: e522577ccdbd 'D' | o 8: 810110211f50 'C' | o 7: 160b0930ccc6 'B' | o 6: c57724c84928 'dev-two named branch' | o 5: 8e279d293175 'H' | | o 4: aeefee77ab01 'G' |/| o | 3: e908b85f3729 'F' | | o | 2: bc8139ee757c 'dev-one named branch' dev-one | | | o 1: 9520eea781bc 'E' |/ @ 0: cd010b8cd998 '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-rebase.hg $ 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: c062e3ecd6c6 'c1' c | | o 2: 792845bb77ee 'b2' b |/ | o 1: 40039acb7ca5 'b1' b |/ o 0: d681519c3ea7 '0' $ hg clone -q . ../case2 rebase 'b2' to another lower branch head $ hg up -qr 2 $ hg rebase rebasing 2:792845bb77ee "b2" note: not rebasing 2:792845bb77ee "b2", its destination already has all its changes saved backup bundle to $TESTTMP/case1/.hg/strip-backup/792845bb77ee-627120ee-rebase.hg $ hg tglog o 2: c062e3ecd6c6 'c1' c | | @ 1: 40039acb7ca5 'b1' b |/ o 0: d681519c3ea7 '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-rebase.hg $ hg tglog @ 3: 76abc1c6f8c7 'b1' b | | o 2: c062e3ecd6c6 'c1' c | | o | 1: 792845bb77ee 'b2' b |/ o 0: d681519c3ea7 '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: 8427af5d86f2 'c2 closed' c | o 3: 76abc1c6f8c7 'b1' b | | @ 2: c062e3ecd6c6 'c1' c | | o | 1: 792845bb77ee 'b2' b |/ o 0: d681519c3ea7 '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: 8427af5d86f2 'c2 closed' c | o 3: 76abc1c6f8c7 'b1' b | | @ 2: c062e3ecd6c6 'c1' c | | o | 1: 792845bb77ee 'b2' b |/ o 0: d681519c3ea7 '0' $ hg up -cr 1 0 files updated, 0 files merged, 0 files removed, 0 files unresolved $ hg branch x marked working directory as branch x $ hg rebase -r 3:: -d . rebasing 3:76abc1c6f8c7 "b1" rebasing 4:8427af5d86f2 "c2 closed" (tip) note: not rebasing 4:8427af5d86f2 "c2 closed" (tip), its destination already has all its changes saved backup bundle to $TESTTMP/case2/.hg/strip-backup/76abc1c6f8c7-cd698d13-rebase.hg $ hg tglog o 3: 117b0ed08075 'b1' x | | o 2: c062e3ecd6c6 'c1' c | | @ | 1: 792845bb77ee 'b2' b |/ o 0: d681519c3ea7 '0' $ cd ..