convert: add support to detect git renames and copies
Git is fairly unique among VCSes in that it doesn't record copies and renames,
instead choosing to detect them on the fly. Since Mercurial expects copies and
renames to be recorded, it can be valuable to preserve this history while
converting a Git repository to Mercurial. This patch adds a new convert option,
called 'convert.git.similarity', which determines how similar files must be to
be treated as renames or copies.
$ 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
$ echo I > I
$ hg ci -AmI
adding I
$ hg tglog
@ 8: 'I'
|
o 7: 'H'
|
| o 6: 'G'
|/|
o | 5: 'F'
| |
| o 4: 'E'
|/
| o 3: 'D'
| |
| o 2: 'C'
| |
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
These fail:
$ hg clone -q -u . a a1
$ cd a1
$ hg rebase -s 8 -d 7
nothing to rebase
[1]
$ hg rebase --continue --abort
abort: cannot use both abort and continue
[255]
$ hg rebase --continue --collapse
abort: cannot use collapse with continue or abort
[255]
$ hg rebase --continue --dest 4
abort: abort and continue do not allow specifying revisions
[255]
$ hg rebase --base 5 --source 4
abort: cannot specify both a source and a base
[255]
$ hg rebase --rev 5 --source 4
abort: cannot specify both a revision and a source
[255]
$ hg rebase --base 5 --rev 4
abort: cannot specify both a revision and a base
[255]
$ hg rebase --rev '1 & !1'
empty "rev" revision set - nothing to rebase
[1]
$ hg rebase --source '1 & !1'
empty "source" revision set - nothing to rebase
[1]
$ hg rebase --base '1 & !1'
empty "base" revision set - can't compute rebase set
[1]
$ hg rebase
nothing to rebase - working directory parent is also destination
[1]
$ hg rebase -b.
nothing to rebase - e7ec4e813ba6 is both "base" and destination
[1]
$ hg up -q 7
$ hg rebase --traceback
nothing to rebase - working directory parent is already an ancestor of destination e7ec4e813ba6
[1]
$ hg rebase -b.
nothing to rebase - "base" 02de42196ebe is already an ancestor of destination e7ec4e813ba6
[1]
$ hg rebase --dest '1 & !1'
abort: empty revision set
[255]
These work:
Rebase with no arguments (from 3 onto 8):
$ hg up -q -C 3
$ hg rebase
saved backup bundle to $TESTTMP/a1/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
o 5: 'I'
|
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
Try to rollback after a rebase (fail):
$ hg rollback
no rollback information available
[1]
$ cd ..
Rebase with base == '.' => same as no arguments (from 3 onto 8):
$ hg clone -q -u 3 a a2
$ cd a2
$ hg rebase --base .
saved backup bundle to $TESTTMP/a2/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
o 5: 'I'
|
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ cd ..
Rebase with dest == branch(.) => same as no arguments (from 3 onto 8):
$ hg clone -q -u 3 a a3
$ cd a3
$ hg rebase --dest 'branch(.)'
saved backup bundle to $TESTTMP/a3/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
o 5: 'I'
|
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ cd ..
Specify only source (from 2 onto 8):
$ hg clone -q -u . a a4
$ cd a4
$ hg rebase --source 'desc("C")'
saved backup bundle to $TESTTMP/a4/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
o 8: 'D'
|
o 7: 'C'
|
@ 6: 'I'
|
o 5: 'H'
|
| o 4: 'G'
|/|
o | 3: 'F'
| |
| o 2: 'E'
|/
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Specify only dest (from 3 onto 6):
$ hg clone -q -u 3 a a5
$ cd a5
$ hg rebase --dest 6
saved backup bundle to $TESTTMP/a5/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
@ 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
| o 5: 'I'
| |
| o 4: 'H'
| |
o | 3: 'G'
|\|
| o 2: 'F'
| |
o | 1: 'E'
|/
o 0: 'A'
$ cd ..
Specify only base (from 1 onto 8):
$ hg clone -q -u . a a6
$ cd a6
$ hg rebase --base 'desc("D")'
saved backup bundle to $TESTTMP/a6/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
o 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
@ 5: 'I'
|
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ cd ..
Specify source and dest (from 2 onto 7):
$ hg clone -q -u . a a7
$ cd a7
$ hg rebase --source 2 --dest 7
saved backup bundle to $TESTTMP/a7/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
o 8: 'D'
|
o 7: 'C'
|
| @ 6: 'I'
|/
o 5: 'H'
|
| o 4: 'G'
|/|
o | 3: 'F'
| |
| o 2: 'E'
|/
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Specify base and dest (from 1 onto 7):
$ hg clone -q -u . a a8
$ cd a8
$ hg rebase --base 3 --dest 7
saved backup bundle to $TESTTMP/a8/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
o 8: 'D'
|
o 7: 'C'
|
o 6: 'B'
|
| @ 5: 'I'
|/
o 4: 'H'
|
| o 3: 'G'
|/|
o | 2: 'F'
| |
| o 1: 'E'
|/
o 0: 'A'
$ cd ..
Specify only revs (from 2 onto 8)
$ hg clone -q -u . a a9
$ cd a9
$ hg rebase --rev 'desc("C")::'
saved backup bundle to $TESTTMP/a9/.hg/strip-backup/*-backup.hg (glob)
$ hg tglog
o 8: 'D'
|
o 7: 'C'
|
@ 6: 'I'
|
o 5: 'H'
|
| o 4: 'G'
|/|
o | 3: 'F'
| |
| o 2: 'E'
|/
| o 1: 'B'
|/
o 0: 'A'
$ cd ..
Test --tool parameter:
$ hg init b
$ cd b
$ echo c1 > c1
$ hg ci -Am c1
adding c1
$ echo c2 > c2
$ hg ci -Am c2
adding c2
$ hg up -q 0
$ echo c2b > c2
$ hg ci -Am c2b
adding c2
created new head
$ cd ..
$ hg clone -q -u . b b1
$ cd b1
$ hg rebase -s 2 -d 1 --tool internal:local
saved backup bundle to $TESTTMP/b1/.hg/strip-backup/*-backup.hg (glob)
$ hg cat c2
c2
$ cd ..
$ hg clone -q -u . b b2
$ cd b2
$ hg rebase -s 2 -d 1 --tool internal:other
saved backup bundle to $TESTTMP/b2/.hg/strip-backup/*-backup.hg (glob)
$ hg cat c2
c2b
$ cd ..
$ hg clone -q -u . b b3
$ cd b3
$ hg rebase -s 2 -d 1 --tool internal:fail
unresolved conflicts (see hg resolve, then hg rebase --continue)
[1]
$ hg summary
parent: 1:56daeba07f4b
c2
parent: 2:e4e3f3546619 tip
c2b
branch: default
commit: 1 modified, 1 unresolved (merge)
update: (current)
rebase: 0 rebased, 1 remaining (rebase --continue)
$ hg resolve -l
U c2
$ hg resolve -m c2
(no more unresolved files)
$ hg rebase -c --tool internal:fail
tool option will be ignored
saved backup bundle to $TESTTMP/b3/.hg/strip-backup/*-backup.hg (glob)
$ hg rebase -i
abort: interactive history editing is supported by the 'histedit' extension (see 'hg help histedit')
[255]
$ hg rebase --interactive
abort: interactive history editing is supported by the 'histedit' extension (see 'hg help histedit')
[255]
$ cd ..