rewind: make sure merge commits include files from p1 and p2
Otherwise rewinding a merge commit makes it lose all changes.
This fix populates `updates` argument of rewriteutil.rewrite() with parent
changesets. That argument is normally used for folding multiple changesets, but
in this case it's simply used to include files from p1 and p2. Usually,
rewrite() works fine using ctx.files(), but that function can return an empty
list when ctx is a merge commit.
test of the fold command
------------------------
$ cat >> $HGRCPATH <<EOF
> [defaults]
> amend=-d "0 0"
> fold=-d "0 0"
> split=-d "0 0"
> amend=-d "0 0"
> [web]
> push_ssl = false
> allow_push = *
> [phases]
> publish = False
> [diff]
> git = 1
> unified = 0
> [ui]
> interactive = true
> [extensions]
> EOF
$ echo "topic=$(echo $(dirname $TESTDIR))/hgext3rd/topic/" >> $HGRCPATH
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ mkcommit() {
> echo "$1" > "$1"
> hg add "$1"
> hg ci -m "add $1" $2 $3
> }
$ logtopic() {
> hg log -G -T "{rev}:{node}\ntopics: {topics}"
> }
Check that fold keep the topic if all revisions have the topic
--------------------------------------------------------------
$ hg init testfold
$ cd testfold
$ mkcommit ROOT
$ hg topic myfeature
marked working directory as topic: myfeature
$ mkcommit feature1
active topic 'myfeature' grew its first changeset
(see 'hg help topics' for more information)
$ mkcommit feature2
$ logtopic
@ 2:d76a6166b18c835be9a487c5e21c7d260f0a1676
| topics: myfeature
o 1:39e7a938055e87615edf675c24a10997ff05bb06
| topics: myfeature
o 0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
topics:
$ hg fold --exact -r "(tip~1)::" -m "folded"
2 changesets folded
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg stack
### topic: myfeature
### target: default (branch)
s1@ folded (current)
s0^ add ROOT (base)
$ logtopic
@ 3:4fd43e5bdc443dc8489edffac19bd8f93ccf1a5c
| topics: myfeature
o 0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
topics:
$ hg summary
parent: 3:4fd43e5bdc44 tip
folded
branch: default
commit: (clean)
update: (current)
phases: 2 draft
topic: myfeature
Check that fold dismis the topic if not all revisions have the topic
--------------------------------------------------------------------
(I'm not sure this behavior make senses, but now it is tested)
$ hg topic --clear
$ mkcommit feature3
created new head
(consider using topic for lightweight branches. See 'hg help topic')
$ hg topic myotherfeature
marked working directory as topic: myotherfeature
$ mkcommit feature4
active topic 'myotherfeature' grew its first changeset
(see 'hg help topics' for more information)
$ logtopic
@ 5:5ded4d6d578c37f339b0716de2e46e12ece7cbde
| topics: myotherfeature
o 4:bdf6950b9b5b7c6b377c8132667c73ec86d5734f
| topics:
o 3:4fd43e5bdc443dc8489edffac19bd8f93ccf1a5c
| topics: myfeature
o 0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
topics:
$ hg fold --exact -r "(tip~1)::" -m "folded 2"
active topic 'myotherfeature' is now empty
2 changesets folded
clearing empty topic "myotherfeature"
0 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ logtopic
@ 6:03da8f7238e9a4d708d6b8af402c91c68f271477
| topics:
o 3:4fd43e5bdc443dc8489edffac19bd8f93ccf1a5c
| topics: myfeature
o 0:3e7df3b3b17c6deb4a1c70e790782fdf17af96a7
topics:
$ hg summary
parent: 6:03da8f7238e9 tip
folded 2
branch: default
commit: (clean)
update: (current)
phases: 3 draft