Mercurial > hg
view tests/test-rebase-detach.t @ 30000:557454ce854a
changelog: specify checkambig=True to revlog.__init__, to avoid ambiguity
If steps below occurs at "the same time in sec", all of mtime, ctime
and size are same between (1) and (3).
1. append data to 00changelog.i (and close transaction)
2. discard appended data by truncation (strip or rollback)
3. append same size but different data to 00changelog.i again
Therefore, cache validation doesn't work after (3) as expected.
To avoid such file stat ambiguity around truncation, this patch
specifies checkambig=True to revlog.__init__(). This makes revlog
write changes out with checkambig=True.
Even though changes of 00changelog.i themselves are written out at
changelog._finalize(), this checkambig=True is needed, because
revlog.checkinlinesize(), which is invoked at the end of
changelog._finalize(), might replace already changed 00changelog.i by
converted one.
Even after this patch, avoiding file stat ambiguity of 00changelog.i
around truncation isn't yet completed, because truncation side isn't
aware of this issue.
This is a part of ExactCacheValidationPlan.
https://www.mercurial-scm.org/wiki/ExactCacheValidationPlan
author | FUJIWARA Katsunori <foozy@lares.dti.ne.jp> |
---|---|
date | Thu, 22 Sep 2016 21:51:59 +0900 |
parents | 157675d0f600 |
children | 3b7cb3d17137 |
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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 .. Rebasing D onto H detaching from C: $ hg clone -q -u . a a1 $ cd a1 $ hg tglog @ 7: 'H' | | o 6: 'G' |/| o | 5: 'F' | | | o 4: 'E' |/ | o 3: 'D' | | | o 2: 'C' | | | o 1: 'B' |/ o 0: 'A' $ hg phase --force --secret 3 $ hg rebase -s 3 -d 7 rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a1/.hg/strip-backup/32af7686d403-6f7dface-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" o 7:secret 'D' | @ 6:draft 'H' | | o 5:draft 'G' |/| o | 4:draft 'F' | | | o 3:draft 'E' |/ | o 2:draft 'C' | | | o 1:draft 'B' |/ o 0:draft 'A' $ hg manifest --rev tip A D F H $ cd .. Rebasing C onto H detaching from B: $ hg clone -q -u . a a2 $ cd a2 $ hg tglog @ 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 -s 2 -d 7 rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a2/.hg/strip-backup/5fddd98957c8-f9244fa1-backup.hg (glob) $ hg tglog o 7: 'D' | o 6: 'C' | @ 5: 'H' | | o 4: 'G' |/| o | 3: 'F' | | | o 2: 'E' |/ | o 1: 'B' |/ o 0: 'A' $ hg manifest --rev tip A C D F H $ cd .. Rebasing B onto H using detach (same as not using it): $ hg clone -q -u . a a3 $ cd a3 $ hg tglog @ 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 -s 1 -d 7 rebasing 1:42ccdea3bb16 "B" rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a3/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob) $ hg tglog o 7: 'D' | o 6: 'C' | o 5: 'B' | @ 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ hg manifest --rev tip A B C D F H $ cd .. Rebasing C onto H detaching from B and collapsing: $ hg clone -q -u . a a4 $ cd a4 $ hg phase --force --secret 3 $ hg tglog @ 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 --collapse -s 2 -d 7 rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a4/.hg/strip-backup/5fddd98957c8-f9244fa1-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" o 6:secret 'Collapsed revision | * C | * D' @ 5:draft 'H' | | o 4:draft 'G' |/| o | 3:draft 'F' | | | o 2:draft 'E' |/ | o 1:draft 'B' |/ o 0:draft 'A' $ hg manifest --rev tip A C D F H $ cd .. Rebasing across null as ancestor $ hg clone -q -U a a5 $ cd a5 $ echo x > x $ hg add x $ hg ci -m "extra branch" created new head $ hg tglog @ 8: 'extra branch' 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 -s 1 -d tip rebasing 1:42ccdea3bb16 "B" rebasing 2:5fddd98957c8 "C" rebasing 3:32af7686d403 "D" saved backup bundle to $TESTTMP/a5/.hg/strip-backup/42ccdea3bb16-3cb021d3-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | o 6: 'B' | @ 5: 'extra branch' o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ hg rebase -d 5 -s 7 rebasing 7:13547172c9c0 "C" rebasing 8:4e27a76c371a "D" (tip) saved backup bundle to $TESTTMP/a5/.hg/strip-backup/13547172c9c0-35685ded-backup.hg (glob) $ hg tglog o 8: 'D' | o 7: 'C' | | o 6: 'B' |/ @ 5: 'extra branch' o 4: 'H' | | o 3: 'G' |/| o | 2: 'F' | | | o 1: 'E' |/ o 0: 'A' $ cd .. Verify that target is not selected as external rev (issue3085) $ hg clone -q -U a a6 $ cd a6 $ hg up -q 6 $ echo "I" >> E $ hg ci -m "I" $ hg merge 7 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (branch merge, don't forget to commit) $ hg ci -m "Merge" $ echo "J" >> F $ hg ci -m "J" $ hg rebase -s 8 -d 7 --collapse --config ui.merge=internal:other rebasing 8:9790e768172d "I" rebasing 9:5d7b11f5fb97 "Merge" rebasing 10:9427d4d5af81 "J" (tip) saved backup bundle to $TESTTMP/a6/.hg/strip-backup/9790e768172d-c2111e9d-backup.hg (glob) $ hg tglog @ 8: 'Collapsed revision | * I | * Merge | * J' 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 log --rev tip changeset: 8:9472f4b1d736 tag: tip user: test date: Thu Jan 01 00:00:00 1970 +0000 summary: Collapsed revision $ cd .. Ensure --continue restores a correct state (issue3046) and phase: $ hg clone -q a a7 $ cd a7 $ hg up -q 3 $ echo 'H2' > H $ hg ci -A -m 'H2' adding H $ hg phase --force --secret 8 $ hg rebase -s 8 -d 7 --config ui.merge=internal:fail rebasing 8:6215fafa5447 "H2" (tip) merging H warning: conflicts while merging H! (edit, then use 'hg resolve --mark') unresolved conflicts (see hg resolve, then hg rebase --continue) [1] $ hg resolve --all -t internal:local (no more unresolved files) continue: hg rebase --continue $ hg rebase -c rebasing 8:6215fafa5447 "H2" (tip) note: rebase of 8:6215fafa5447 created no changes to commit saved backup bundle to $TESTTMP/a7/.hg/strip-backup/6215fafa5447-5804ebd5-backup.hg (glob) $ hg log -G --template "{rev}:{phase} '{desc}' {branches}\n" @ 7:draft 'H' | | o 6:draft 'G' |/| o | 5:draft 'F' | | | o 4:draft 'E' |/ | o 3:draft 'D' | | | o 2:draft 'C' | | | o 1:draft 'B' |/ o 0:draft 'A' $ cd ..