grab: gracefully handle the case when we try to grab parent of wdir
Before this patch, we go all the way down to obsmarker creation logic and gets
an error saying that changeset cannot obsolete itself. We should be more smart
here and error out early saying we cannot grab that changeset.
This feature requires mercurial 3.0
(and the `only()` revset is 3.0 specific)
$ (hg help revset | grep '"only(' > /dev/null) || exit 80
Test creation of obsolescence marker by path import
$ hg init auto-obsolete
$ cd auto-obsolete
$ echo '[extensions]' >> $HGRCPATH
$ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH
$ echo A > a
$ hg commit -Am A
adding a
$ echo B > b
$ hg commit -Am B
adding b
$ hg up '.^'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ echo C > c
$ hg commit -Am C
adding c
created new head
$ hg log -G
@ changeset: 2:eb8dd0f31b51
| tag: tip
| parent: 0:f2bbf19cf96d
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: C
|
| o changeset: 1:95b760afef3c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B
|
o changeset: 0:f2bbf19cf96d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: A
(actual test)
$ hg export 'desc(B)' | hg import - --obsolete
applying patch from stdin
$ hg log -G
@ changeset: 3:00c49133f17e
| tag: tip
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B
|
o changeset: 2:eb8dd0f31b51
| parent: 0:f2bbf19cf96d
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: C
|
o changeset: 0:f2bbf19cf96d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: A
$ hg debugobsolete
95b760afef3c234ffb3f9fd391edcb36e60921a4 00c49133f17e5e5a52b6ef1b6d516c0e90b56d8a 0 (*) {'user': 'test'} (glob)
$ hg rollback
repository tip rolled back to revision 2 (undo import)
working directory now based on revision 2
$ hg log -G
@ changeset: 2:eb8dd0f31b51
| tag: tip
| parent: 0:f2bbf19cf96d
| user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: C
|
| o changeset: 1:95b760afef3c
|/ user: test
| date: Thu Jan 01 00:00:00 1970 +0000
| summary: B
|
o changeset: 0:f2bbf19cf96d
user: test
date: Thu Jan 01 00:00:00 1970 +0000
summary: A
$ hg debugobsolete