amend: query the wdir parent after taking lock (issue5266)
If we query wdir parent without taking a lock, that can lead to bugs because the
wdir parent can change is another process has changed the wdir parent.
One such example of this was issue 5266. When a user is running amend and that
amend is waiting for commit message, the user runs another amend which waits for
lock. The second amend is waiting for lock, but has already read the description
from the parent of working directory to use. Once the first amend completes the
wdir parent changes but we still have the description from an old wdir parent.
This patch fixes the bug by querying the description after taking lock.
Attempts were made to add test for this but the results were unstable because
they depend on time in which lock is released.
Testing the config option for rejecting draft changeset without topic
The config option is "experimental.topic-mode.server"
$ . "$TESTDIR/testlib/topic_setup.sh"
Creating a server repo
$ hg init server
$ cd server
$ cat <<EOF >>.hg/hgrc
> [phases]
> publish=False
> [experimental]
> topic-mode.server = enforce
> EOF
$ hg topic server
marked working directory as topic: server
$ for ch in a b c; do echo foo > $ch; hg ci -Aqm "Added "$ch; done
$ hg ph -p 0
$ hg log -G -T "{rev}:{node|short}\n{desc} {topics}"
@ 2:a7b96f87a214
| Added c server
o 1:d6a8197e192a
| Added b server
o 0:49a3f206c9ae
Added a
$ cd ..
Creating a client repo
$ hg clone server client
updating to branch default
1 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ cd client
$ hg up server
switching to topic server
2 files updated, 0 files merged, 0 files removed, 0 files unresolved
$ hg log -G -T "{rev}:{node|short}\n{desc} {topics}"
@ 2:a7b96f87a214
| Added c server
o 1:d6a8197e192a
| Added b server
o 0:49a3f206c9ae
Added a
$ hg topic
* server (2 changesets)
Create a changeset without topic
$ hg topic --clear
$ echo foo > d
$ hg ci -Aqm "added d"
$ hg log -G -T "{rev}:{node|short}\n{desc} {topics}"
@ 3:4e8b0e0237c6
| added d
o 2:a7b96f87a214
| Added c server
o 1:d6a8197e192a
| Added b server
o 0:49a3f206c9ae
Added a
Push a draft changeset without topic
$ hg push ../server --new-branch
pushing to ../server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
transaction abort!
rollback completed
abort: rejecting draft changesets: 4e8b0e0237
[255]
$ hg push ../server -f
pushing to ../server
searching for changes
adding changesets
adding manifests
adding file changes
added 1 changesets with 1 changes to 1 files
transaction abort!
rollback completed
abort: rejecting draft changesets: 4e8b0e0237
[255]
Grow the stack with more changesets having topic
$ hg topic client
marked working directory as topic: client
$ for ch in e f g; do echo foo > $ch; hg ci -Aqm "Added "$ch; done;
$ hg log -G -T "{rev}:{node|short}\n{desc} {topics}"
@ 6:42c4ac86452a
| Added g client
o 5:3dc456efb491
| Added f client
o 4:18a516babc60
| Added e client
o 3:4e8b0e0237c6
| added d
o 2:a7b96f87a214
| Added c server
o 1:d6a8197e192a
| Added b server
o 0:49a3f206c9ae
Added a
Pushing multiple changeset with some having topics and some not
$ hg push ../server --new-branch
pushing to ../server
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 4 files
transaction abort!
rollback completed
abort: rejecting draft changesets: 4e8b0e0237
[255]
Testing case when both experimental.topic-mode.server and
experimental.topic.publish-bare-branch are set
$ cd ../server
$ echo 'topic.publish-bare-branch=True' >> .hg/hgrc
$ cd ../client
$ hg push ../server --new-branch
pushing to ../server
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 4 files
transaction abort!
rollback completed
abort: rejecting draft changesets: 4e8b0e0237
[255]
Turning the changeset public and testing push
$ hg phase -r 3 -p
$ hg log -G -T "{rev}:{node|short}\n{desc} {topics}"
@ 6:42c4ac86452a
| Added g client
o 5:3dc456efb491
| Added f client
o 4:18a516babc60
| Added e client
o 3:4e8b0e0237c6
| added d
o 2:a7b96f87a214
| Added c
o 1:d6a8197e192a
| Added b
o 0:49a3f206c9ae
Added a
$ hg push ../server
pushing to ../server
searching for changes
adding changesets
adding manifests
adding file changes
added 4 changesets with 4 changes to 4 files
active topic 'server' is now empty