evolve: always create commit when resolving divergence
When resolving content-divergence, the final commit we create may end
up empty (which means that Mercurial won't even create it). We've had
code for handling that in evolve ever since 41bf6c27a122 (evolve:
stabilize now handle conflicting changeset, 2012-08-23). However, that
resolved the issue by marking on the divergent commits as
successor. As Pierre-Yves has pointed out (in other code reviews), we
should instead be creating a new successor. So that's what this patch
does. It does that by setting `ui.allowemptycommit` while creating the
final commit. However, that is not enough, because we may end up
creating the same nodeid as already existed (we'd then end up trying
to mark the "new" commit a successor of itself). To solve that, we add
some salt to the commit extras. That salt affects lots of tests.
$ cat >> $HGRCPATH <<EOF
> [web]
> push_ssl = false
> allow_push = *
> [phases]
> publish=False
> [alias]
> odiff=diff --rev 'limit(obsparents(.),1)' --rev .
> [extensions]
> EOF
$ mkcommit() {
> echo "$1" > "$1"
> hg add "$1"
> hg ci -m "add $1"
> }
create commit
$ hg init repo
$ cd repo
$ mkcommit a
$ mkcommit b
$ hg up -q 0
$ mkcommit c
created new head
forge old style relation files
$ hg log -r 2 --template='{node} ' > .hg/obsolete-relations
$ hg log -r 1 --template='{node}' >> .hg/obsolete-relations
enable the extensions
$ echo "obsolete=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/legacy.py" >> $HGRCPATH
$ hg log -G
abort: old format of obsolete marker detected!
run `hg debugconvertobsolete` once.
[255]
$ hg debugconvertobsolete --traceback
1 obsolete marker converted
$ hg log -G
@ changeset: 2:d67cd0334eee
| tag: tip
| parent: 0:1f0dee641bb7
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: add c
|
o changeset: 0:1f0dee641bb7
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: add a
$ hg debugobsolete
7c3bad9141dcb46ff89abf5f61856facd56e476c d67cd0334eeecfded222fed9009f0db4beb57585 0 (*) {'user': 'test'} (glob)
$ hg debugconvertobsolete
nothing to do
0 obsolete marker converted
Convert json
$ cat > .hg/store/obsoletemarkers << EOF
> [
> {
> "reason": "import from older format.",
> "subjects": [
> "3218406b50ed13480765e7c260669620f37fba6e"
> ],
> "user": "Pierre-Yves David <pierre-yves.david@ens-lyon.org>",
> "date": [
> 1336503323.9768269,
> -7200
> ],
> "object": "3e03d82708d4da97a92158558dd13386d8f09ad5",
> "id": "4743f676eaf3923cb98c921ee06b2e91052c365b"
> },
> {
> "reason": "import from older format.",
> "user": "Pierre-Yves David <pierre-yves.david@logilab.fr>",
> "date": [
> 1336557472.7875929,
> -7200
> ],
> "object": "5c722672795c3a2cb94d0cc9a821c394c1475f87",
> "id": "1fd90a84b7225d2e3062b7e1b3100aa2e060fc72"
> },
> {
> "reason": "import from older format.",
> "subjects": [
> "0000000000000000000000000000000000000000"
> ],
> "user": "Pierre-Yves David <pierre-yves.david@logilab.fr>",
> "date": [
> 1336557472.784307,
> -7200
> ],
> "object": "2c3784e102bb34ccc93862af5bd6d609ee30c577",
> "id": "7d940c5ee1f886c8a6c0d805b43e522cb3ef7a15"
> }
> ]
> EOF
$ hg log -G
abort: old format of obsolete marker detected!
run `hg debugconvertobsolete` once.
[255]
$ hg debugconvertobsolete --traceback
3 obsolete marker converted
$ hg debugobsolete
7c3bad9141dcb46ff89abf5f61856facd56e476c d67cd0334eeecfded222fed9009f0db4beb57585 0 (*) {'user': 'test'} (glob)
3e03d82708d4da97a92158558dd13386d8f09ad5 3218406b50ed13480765e7c260669620f37fba6e 0 (Tue May 08 20:55:23 2012 +0200) {'user': 'Pierre-Yves David <pierre-yves.david@ens-lyon.org>'}
5c722672795c3a2cb94d0cc9a821c394c1475f87 0 (Wed May 09 11:57:52 2012 +0200) {'user': 'Pierre-Yves David <pierre-yves.david@logilab.fr>'}
2c3784e102bb34ccc93862af5bd6d609ee30c577 0 (Wed May 09 11:57:52 2012 +0200) {'user': 'Pierre-Yves David <pierre-yves.david@logilab.fr>'}