rewriteutil: allow rewriting merge commits (issue4561)
This patch simply allows rewriteutil.rewrite() to work with commits with
multiple parents (i.e. merges). That function is used in such commands as fold,
metaedit, touch, rewind.
The issue 4561 is marked as easy, the limitation is called unnecessary, no
tests fail after this change. What can go wrong.
$ cat >> $HGRCPATH <<EOF
> [ui]
> logtemplate={rev}:{node|short} {desc}\n
> [defaults]
> amend=-d "0 0"
> [alias]
> glog = log -GT "{rev}: {desc}"
> [extensions]
> hgext.rebase=
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo A > a
$ hg add a
$ hg commit -m a
Basic usage
$ hg log -G
@ 0:[0-9a-f]{12} a (re)
$ hg touch .
$ hg log -G
@ 1:[0-9a-f]{12} a (re)
Revive usage
$ echo A > b
$ hg add b
$ hg commit -m ab --amend
$ hg up --hidden 1
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
updated to hidden changeset * (glob)
(hidden revision '*' was rewritten as: *) (glob)
working directory parent is obsolete! (*) (glob)
(use 'hg evolve' to update to its successor: *) (glob)
$ hg log -G
o 2:[0-9a-f]{12} ab (re)
@ 1:[0-9a-f]{12} a (re)
$ hg touch .
[1] a
reviving this changeset will create divergence unless you make a duplicate.
(a)llow divergence or (d)uplicate the changeset? a
2 new content-divergent changesets
$ hg log -G
@ 3:[0-9a-f]{12} a (re)
\* 2:[0-9a-f]{12} ab (re)
$ hg prune 3
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
working directory is now at 000000000000
1 changesets pruned
Duplicate
$ hg touch --duplicate .
$ hg log -G
@ 4:[0-9a-f]{12} (re)
o 2:[0-9a-f]{12} ab (re)
Multiple touch
$ echo C > c
$ hg add c
$ hg commit -m c
$ echo D > d
$ hg add d
$ hg commit -m d
$ hg log -G
@ 6:[0-9a-f]{12} d (re)
|
o 5:[0-9a-f]{12} c (re)
|
o 4:[0-9a-f]{12} (re)
o 2:[0-9a-f]{12} ab (re)
$ hg touch .^:.
$ hg log -G
@ 8:[0-9a-f]{12} d (re)
|
o 7:[0-9a-f]{12} c (re)
|
o 4:[0-9a-f]{12} (re)
o 2:[0-9a-f]{12} ab (re)
check move data kept after rebase on touch:
$ touch gna1
$ hg commit -Am gna1
adding gna1
$ hg mv gna1 gna2
$ hg commit -m move
$ hg st -C --change=tip
A gna2
gna1
R gna1
$ hg up .^
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg touch
1 new orphan changesets
$ hg log -G --hidden
@ 11:[0-9a-f]{12} gna1 (re)
|
. \* 10:[0-9a-f]{12} move (re)
| |
. x 9:[0-9a-f]{12} gna1 (re)
|/
o 8:[0-9a-f]{12} d (re)
|
o 7:[0-9a-f]{12} c (re)
|
. x 6:[0-9a-f]{12} d (re)
| |
. x 5:[0-9a-f]{12} c (re)
|/
o 4:[0-9a-f]{12} (re)
x 3:[0-9a-f]{12} a (re)
o 2:[0-9a-f]{12} ab (re)
x 1:[0-9a-f]{12} a (re)
x 0:[0-9a-f]{12} a (re)
$ hg rebase -s 10 -d 11
rebasing 10:[0-9a-f]{12} "move" (re)
$ hg st -C --change=tip
A gna2
gna1
R gna1
check that the --duplicate option does not create divergence
$ hg touch --duplicate 10 --hidden
1 new orphan changesets
check that reviving a changeset with no successor does not show the prompt
$ hg prune 13
1 changesets pruned
$ hg touch 13 --hidden --note "testing with no successor"
1 new orphan changesets
$ hg obslog -r 13 --hidden
x [0-9a-f]{12} (.*) move (re)
pruned using prune by test (Thu Jan 01 00:00:00 1970 +0000)
rewritten(.*) as [0-9a-f]{12} using touch by test (.*) (re)
note: testing with no successor
Public phase
$ hg phase --public -r 2
$ hg touch 2
abort: cannot touch public changesets: * (glob)
(see 'hg help phases' for details)
[255]
$ hg touch --duplicate 2
Reviving merge commit
$ hg up 12
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ hg merge 15
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ hg ci -m merge
$ hg prune -r .
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
working directory is now at * (glob)
1 changesets pruned
$ hg touch 16 --hidden
$ hg glog -r '12+15+17'
o 17: merge
|\
| o 15: ab
|
@ 12: move
|
~