evolve: unify revision handling and rework error message
This changesets do a massive refactoring of the way evolve select changesets to
be evolve. We now use a two stages approach:
1) read command line argument and produce a list of revision to evolve.
2) evolve all these revisions.
This allow a much cleaner, robust and extensible code. In the process the error
message issued when there is nothing to evolve have been updated to informs
about other troubles in the repository and point at useful option to solve them.
The 'update' case is handled independently at the start of the function.
=========================================================
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))/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" or use "hg update -C" to abort
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
|
| o 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 5:71c18f70c34f "babar count up to fifteen"
$ 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)? n
merging babar failed!
evolve failed!
fix conflict and run "hg evolve --continue" or use "hg update -C" to abort
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
|
| o 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