view tests/test-topic-server.t @ 5601:3946ee4ee3ae

topic: add a `exp….topic.linear-merge` option to allow some oedipus

If this option is set to `from-branch`, a user can call `hg merge some-topic`
from a bare branch even if `some-topic` is a direct descendant of the current
working copy parents. This was previously denied if the changesets was on the
same branch, since the result would be an "oedipus merge".

Some user have been requesting this, and this type of merge is one of Gitlab
standard way of merging a "Merge Request". That new option will unlock issue
`heptapod#200` and make this mode available for those who wants it.

  $ . "$TESTDIR/testlib/topic_setup.sh"

  $ cat << EOF >> $HGRCPATH
  > [experimental]
  > evolution = all
  > topic.publish-bare-branch = yes
  > topic.server-gate-topic-changesets = yes
  > 
  > [extensions]
  > evolve =
  > 
  > [phases]
  > publish = no
  > 
  > [ui]
  > ssh = "$PYTHON" "$RUNTESTDIR/dummyssh"
  > EOF

  $ hg init server
  $ cd server

  $ echo a > a
  $ hg commit -qAm root
  $ hg phase --public -r 'all()'

  $ cd ..

  $ hg clone ssh://user@dummy/server client-topic1
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 6569b5a81c7e
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg clone ssh://user@dummy/server client-topic2
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 6569b5a81c7e
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg version -v -R client-topic1
  warning: --repository ignored
  Mercurial Distributed SCM (*) (glob)
  (see https://mercurial-scm.org for more information)
  
  Copyright (C) 2005-* Matt Mackall and others (glob)
  This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  Enabled extensions:
  
    evolve  external  * (glob)
    rebase  internal  
    topic   external  * (glob)
  $ hg clone ssh://user@dummy/server client-plain
  requesting all changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets 6569b5a81c7e
  updating to branch default
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ cat << EOF >> client-plain/.hg/hgrc
  > [extensions]
  > topic = !
  > EOF
  $ hg version -v -R client-plain
  warning: --repository ignored
  Mercurial Distributed SCM (*) (glob)
  (see https://mercurial-scm.org for more information)
  
  Copyright (C) 2005-* Matt Mackall and others (glob)
  This is free software; see the source for copying conditions. There is NO
  warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  
  Enabled extensions:
  
    evolve  external  * (glob)
    rebase  internal  

Make two commits, with and without a topic, and push them to the server

  $ cd client-topic1
  $ echo b > b
  $ hg topic some-work
  marked working directory as topic: some-work
  $ hg commit -Am 'adding b (topic)'
  adding b
  active topic 'some-work' grew its first changeset
  (see 'hg help topics' for more information)
  $ hg up 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg commit -Am 'adding c (no topic)'
  adding c
  $ hg up some-work
  switching to topic some-work
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ hg topic --clear
  $ echo d > d
  $ hg commit -Am 'adding d (no topic)'
  adding d
  created new head
  (consider using topic for lightweight branches. See 'hg help topic')
  $ hg log -r 'all() - 0'
  changeset:   1:2a2e8b3520f2
  topic:       some-work
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding b (topic)
  
  changeset:   2:b46feb4d24f9
  parent:      0:6569b5a81c7e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding c (no topic)
  
  changeset:   3:be22ca6e89ea
  tag:         tip
  parent:      1:2a2e8b3520f2
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding d (no topic)
  

(disable the bare publishing to put a bare draft on the server)

  $ cat << EOF >> ../server/.hg/hgrc
  > [experimental]
  > topic.publish-bare-branch = no
  > EOF
  $ hg push --force
  pushing to ssh://user@dummy/server
  searching for changes
  remote: adding changesets
  remote: adding manifests
  remote: adding file changes
  remote: added 3 changesets with 3 changes to 3 files (+1 heads)
  $ cd ..
  $ hg --cwd server phase -r 'tip'
  3: draft

Clients with topic can exchange draft changesets both with and without a topic through the server

  $ hg --cwd client-topic2 pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 3 changesets with 3 changes to 3 files (+1 heads)
  new changesets 2a2e8b3520f2:be22ca6e89ea (3 drafts)
  (run 'hg heads' to see heads, 'hg merge' to merge)
  $ hg --cwd client-topic2 log -r 'all() - 0'
  changeset:   1:2a2e8b3520f2
  topic:       some-work
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding b (topic)
  
  changeset:   2:b46feb4d24f9
  parent:      0:6569b5a81c7e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding c (no topic)
  
  changeset:   3:be22ca6e89ea
  tag:         tip
  parent:      1:2a2e8b3520f2
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding d (no topic)
  

Client without topic only sees draft changesets if they don't have a topic

  $ hg --cwd client-plain pull
  pulling from ssh://user@dummy/server
  searching for changes
  adding changesets
  adding manifests
  adding file changes
  added 1 changesets with 1 changes to 1 files
  new changesets b46feb4d24f9 (1 drafts)
  (run 'hg update' to get a working copy)
  $ hg --cwd client-plain phase -r 'all() - 0'
  1: draft
  $ hg --cwd client-plain log -r 'all() - 0'
  changeset:   1:b46feb4d24f9
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     adding c (no topic)