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.
=====================
Test workflow options
=====================
$ . "$TESTDIR/testlib/topic_setup.sh"
$ . "$TESTDIR/testlib/common.sh"
Test single head enforcing - Setup
=============================================
$ hg init single-head-server
$ cd single-head-server
$ cat <<EOF >> .hg/hgrc
> [phases]
> publish = no
> [experimental]
> enforce-single-head = yes
> evolution = all
> EOF
$ mkcommit ROOT
$ mkcommit c_dA0
$ cd ..
$ hg clone single-head-server client
updating to branch default
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
Test single head enforcing - with branch only
---------------------------------------------
$ cd client
continuing the current defaultbranch
$ mkcommit c_dB0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
creating a new branch
$ hg up 'desc("ROOT")'
0 files updated, 0 files merged, 2 files removed, 0 files unresolved
$ hg branch branch_A
marked working directory as branch branch_A
(branches are permanent and global, did you want a bookmark?)
$ mkcommit c_aC0
$ hg push --new-branch
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
Create a new head on the default branch
$ hg up 'desc("c_dA0")'
1 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit c_dD0
created new head
(consider using topic for lightweight branches. See 'hg help topic')
$ hg push -f
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
transaction abort!
rollback completed
abort: 2 heads on "default"
(286d02a6e2a2, 9bf953aa81f6)
[255]
remerge them
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ mkcommit c_dE0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
Test single head enforcing - with topic
---------------------------------------
pushing a new topic
$ hg topic foo
marked working directory as topic: foo
$ mkcommit c_dF0
active topic 'foo' grew its first changeset
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
pushing a new topo branch (with a topic)
$ hg up 'desc("c_dD0")'
0 files updated, 0 files merged, 3 files removed, 0 files unresolved
$ hg topic bar
marked working directory as topic: bar
$ mkcommit c_dG0
active topic 'bar' grew its first changeset
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
detect multiple heads on the topic
$ mkcommit c_dH0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
$ hg up 'desc("c_dG0")'
0 files updated, 0 files merged, 1 files removed, 0 files unresolved
$ mkcommit c_dI0
$ hg push -f
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files (+1 heads)
transaction abort!
rollback completed
abort: 2 heads on "default:bar"
(5194f5dcd542, 48a01453c1c5)
[255]
merge works fine
$ hg merge
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
(branch merge, don't forget to commit)
$ mkcommit c_dJ0
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 2 changesets with 2 changes to 2 files
Test single head enforcing - by phase move
------------------------------------------
$ hg -R ../single-head-server phase --public 'desc("c_dJ0")'
abort: 2 heads on "default"
(6ed1df20edb1, 678bca4de98c)
[255]
Test single head enforcing - after rewrite
------------------------------------------
$ hg up foo
switching to topic foo
3 files updated, 0 files merged, 4 files removed, 0 files unresolved
$ hg commit --amend -m c_dF1
$ hg push
pushing to $TESTTMP/single-head-server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 0 changes to 1 files (+1 heads)
1 new obsolescence markers
obsoleted 1 changesets