evolve: replace each obsolete sha1 in the description with its latest successor
Obsolete csets are hidden by default and don't get pushed to the parent repo.
In order to avoid broken references in commit messages, it makes sense to evolve
those references to the latest and greatest successor, as each cset containing
them is evolved. Of course, stale references can still occur if a commit in
branch 'A' references something in branch 'B', and that something in 'B' is
evolved but 'A' isn't subsequently evolved.
This alleviates the user that is evolving a series of commits from having to
1) recognize that there is a hash that needs updating in any one of the series
2) look up the latest successor manually
3) hg amend -e
The regular expression for matching and the logic for replacing are borrowed
from the convert extension [1].
It might be nice for the output to state the reason that the reference couldn't
be updated (it was pruned, split or diverged), but that may be excessive for
something only displayed in verbose mode. (Maybe it should be a ui.status()
instead?)
[1] http://selenic.com/hg/rev/45562379ce4e
=========================================================
Test the proper behavior of evolve during merge conflict.
=========================================================
Initial setup
$ cat >> $HGRCPATH <<EOF
> [ui]
> interactive=false
> merge=internal:merge
> [defaults]
> amend=-d "0 0"
> [merge-tools]
> touch.checkchanged=true
> touch.gui=true
> touch.args=babar
> [extensions]
> hgext.rebase=
> EOF
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext/evolve.py" >> $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 * (glob)
@@ -5,6 +5,6 @@
cinq
six
sept
-huit
+eight
neuf
dix
$ hg amend
1 new unstable changesets
$ hg evolve
move:[2] babar count up to fifteen
atop:[4] babar count up to ten
merging babar
working directory is now at 71c18f70c34f
$ hg resolve -l
$ hg log -G
@ changeset: 5:71c18f70c34f
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to fifteen
|
o changeset: 4:5977072d13c5
| 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
[4] 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 * (glob)
@@ -7,4 +7,4 @@
sept
eight
neuf
-dix
+ten
$ hg amend
1 new unstable changesets
$ hg evolve
move:[5] babar count up to fifteen
atop:[7] babar count up to ten
merging babar
warning: conflicts during merge.
merging babar incomplete! (edit conflicts, then use 'hg resolve --mark')
evolve failed!
fix conflict and run "hg evolve --continue"
abort: unresolved merge conflicts (see hg help resolve)
[255]
$ hg resolve -l
U babar
$ hg log -G
@ changeset: 7:e04690b09bc6
| tag: tip
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
| @ changeset: 5:71c18f70c34f
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: babar count up to fifteen
| |
| x changeset: 4:5977072d13c5
|/ 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
(fix the conflict and continue)
$ hg revert -r 5 --all
reverting babar
$ safesed 's/dix/ten/' babar
$ hg resolve --all -m
(no more unresolved files)
$ hg evolve --continue
grafting revision 5
$ hg resolve -l
$ hg log -G
@ changeset: 8:1836b91c6c1d
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to fifteen
|
o changeset: 7: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
[7] 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 * (glob)
@@ -7,4 +7,4 @@
sept
eight
neuf
-ten
+zehn
$ hg amend
1 new unstable changesets
$ safesed 's/interactive=.*/interactive=true/' $HGRCPATH
$ hg evolve --tool touch <<EOF
> n
> EOF
move:[8] babar count up to fifteen
atop:[10] babar count up to ten
merging babar
output file babar appears unchanged
was merge successful (yn)? merging babar failed!
evolve failed!
fix conflict and run "hg evolve --continue"
abort: unresolved merge conflicts (see hg help resolve)
[255]
$ hg resolve -l
U babar
$ hg log -G
@ changeset: 10:b20d08eea373
| tag: tip
| parent: 0:29ec1554cfaf
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: babar count up to ten
|
| @ changeset: 8:1836b91c6c1d
| | user: test
| | date: Thu Jan 01 00:00:00 1970 +0000
| | summary: babar count up to fifteen
| |
| x changeset: 7: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
$ cat babar
un
deux
trois
quatre
cinq
six
sept
eight
neuf
zehn