context: introduce p[12]copies() methods and debugp[12]copies commands
As mentioned earlier, I'm working on support for storing copy metadata
in the changeset instead of in the filelog.
In order to transition a repo from storing metadata in filelogs to
storing it in the changeset, I'm going to provide a config option for
reading the metadata from the changeset, but falling back to getting
it from the filelog if it's not in the changeset. In this compatiblity
mode, the changeset-optmized algorithms will be used. We will then
need to convert the filelog copy metadata to look like that provided
by changeset copy metadata. This patch introduces methods that do just
that.
By having these methods here, we can start writing changeset-optimized
algorithms that should work already before we add any support for
storing the metadata in the changesets.
This commit also includes new debugp[12]copies commands and exercises
them in test-copies.t.
Differential Revision: https://phab.mercurial-scm.org/D5990
$ 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 ..