evolve: fix divergence resolution when not merging a descendant
In divergence resolution, when we merge other cset with divergent one
we pass a `mergeancestor` arg to merge.update() and before this patch
we were passing `mergeancestor` as True in every case.
But it should be True only when we are merging a descendant onto an
ancestor.
When mergeancestor is True it does two things:
1) allows the merge if the destination is the same as the parent
of the ctx (so we can use graft to copy commits)
2) informs update that the incoming changes are newer than the
destination so it doesn't prompt about "remote changed foo
which local deleted".
So this patch change it to pass `mergeancestor` as True only when
it is required.
And changes in test file shows that it wasn't prompting either in
those cases when it should (acc. to 2nd point)
Test written by Pierre-Yves David, based the one updated in 5dbaabfe2c59.
=========================================================
Test the proper behavior of evolve during merge conflict.
=========================================================
Initial setup
$ cat >> $HGRCPATH <<EOF
> [ui]
> interactive=false
> merge=internal:merge
> promptecho = True
> [defaults]
> amend=-d "0 0"
> [merge-tools]
> touch.checkchanged=true
> touch.gui=true
> touch.args=babar
> [extensions]
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ safesed() {
> sed "$1" "$2" > `pwd`/sed.temp
> mv `pwd`/sed.temp "$2"
> }
create a simple repo
$ hg init repo
$ cd repo
$ cat << EOF > babar
> un
> deux
> trois
> quatre
> cinq
> EOF
$ hg add babar
$ hg commit -m "babar count up to five"
$ cat << EOF >> babar
> six
> sept
> huit
> neuf
> dix
> EOF
$ hg commit -m "babar count up to ten"
$ cat << EOF >> babar
> onze
> douze
> treize
> quatorze
> quinze
> EOF
$ hg commit -m "babar count up to fifteen"
proper behavior without conflict
----------------------------------
$ hg gdown
gdown have been deprecated in favor of previous
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
[1] babar count up to ten
$ safesed 's/huit/eight/' babar
$ hg diff
diff -r 9d5daf8bd956 babar
--- a/babar Thu Jan 01 00:00:00 1970 +0000
+++ b/babar Thu Jan 01 00:00:00 1970 +0000
@@ -5,6 +5,6 @@
cinq
six
sept
-huit
+eight
neuf
dix
$ hg amend
1 new orphan changesets
$ hg evolve
move:[2] babar count up to fifteen
atop:[3] babar count up to ten
merging babar
working directory is now at 71c18f70c34f
$ hg resolve -l
$ hg log -G
@ changeset: 4:71c18f70c34f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to fifteen
|
o changeset: 3:5977072d13c5
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
o changeset: 0:29ec1554cfaf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: babar count up to five
proper behavior with conflict using internal:merge
--------------------------------------------------
$ hg gdown
gdown have been deprecated in favor of previous
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
[3] babar count up to ten
$ safesed 's/dix/ten/' babar
$ hg diff
diff -r 5977072d13c5 babar
--- a/babar Thu Jan 01 00:00:00 1970 +0000
+++ b/babar Thu Jan 01 00:00:00 1970 +0000
@@ -7,4 +7,4 @@
sept
eight
neuf
-dix
+ten
$ hg amend
1 new orphan changesets
$ hg evolve
move:[4] babar count up to fifteen
atop:[5] babar count up to ten
merging babar
warning: conflicts while merging babar! (edit, then use 'hg resolve --mark')
fix conflicts and see `hg help evolve.interrupted`
[1]
$ hg resolve -l
U babar
$ hg log -G
@ changeset: 5:e04690b09bc6
| tag: tip
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
| @ changeset: 4:71c18f70c34f
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | instability: orphan
| | summary: babar count up to fifteen
| |
| x changeset: 3:5977072d13c5
|/ parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: amended using amend as 5:e04690b09bc6
| summary: babar count up to ten
|
o changeset: 0:29ec1554cfaf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: babar count up to five
(fix the conflict and continue)
$ hg revert -r 71c18f70c34f --all
reverting babar
$ safesed 's/dix/ten/' babar
$ hg resolve --all -m
(no more unresolved files)
continue: hg evolve --continue
$ hg evolve --continue
evolving 4:71c18f70c34f "babar count up to fifteen"
working directory is now at 1836b91c6c1d
$ hg resolve -l
$ hg log -G
@ changeset: 6:1836b91c6c1d
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to fifteen
|
o changeset: 5:e04690b09bc6
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
o changeset: 0:29ec1554cfaf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: babar count up to five
proper behavior with conflict using an external merge tool
----------------------------------------------------------
$ safesed 's/merge=.*/merge=touch/' $HGRCPATH
$ safesed 's/touch.gui=.*/touch.gui=false/' $HGRCPATH
$ hg gdown
gdown have been deprecated in favor of previous
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
[5] babar count up to ten
$ safesed 's/ten/zehn/' babar
$ hg diff
diff -r e04690b09bc6 babar
--- a/babar Thu Jan 01 00:00:00 1970 +0000
+++ b/babar Thu Jan 01 00:00:00 1970 +0000
@@ -7,4 +7,4 @@
sept
eight
neuf
-ten
+zehn
$ hg amend
1 new orphan changesets
$ safesed 's/interactive=.*/interactive=true/' $HGRCPATH
$ hg evolve --tool touch <<EOF
> n
> EOF
move:[6] babar count up to fifteen
atop:[7] babar count up to ten
merging babar
output file babar appears unchanged
was merge successful (yn)? n
merging babar failed!
fix conflicts and see `hg help evolve.interrupted`
[1]
$ hg resolve -l
U babar
$ hg log -G
@ changeset: 7:b20d08eea373
| tag: tip
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
| @ changeset: 6:1836b91c6c1d
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | instability: orphan
| | summary: babar count up to fifteen
| |
| x changeset: 5:e04690b09bc6
|/ parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| obsolete: amended using amend as 7:b20d08eea373
| summary: babar count up to ten
|
o changeset: 0:29ec1554cfaf
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: babar count up to five
$ cat babar
un
deux
trois
quatre
cinq
six
sept
eight
neuf
zehn