view tests/test-topic-mode.t @ 3573:d53277cdc1e7

evolve: handle stabilization of merge changeset with both parents obsoleted

This patch adds logic to stabilize an orphan merge changeset having both parents
obsoleted.

The logic tries to first stabilize the merge changeset on successor of second
parent and then stabilize the new changeset formed on the successor of first
parent. We are stabilizing on second parent first and then to second parent to
preserve the first parent's successor as first parent of the merge changeset.

Conflicts can occcur and we can loose processing information, therefore we store
a variable in statefile `orphanmerge` which represents whether we are processing
a merge changeset with both parents obsoleted.

Thanks to Pierre-Yves David for suggesting this way and helping to understand
the correctness of this.

More rigourous test cases for this will be added in next patch.

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

Testing the config knob to forbid untopiced commit
======================================================

  $ hg init $TESTTMP/untopic-commit
  $ cd $TESTTMP/untopic-commit
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = enforce
  > EOF
  $ touch a b c d
  $ hg add a
  $ hg ci -m "Added a"
  abort: no active topic
  (see 'hg help -e topic.topic-mode' for details)
  [255]

(same test, checking we abort before the editor)

  $ EDITOR=cat hg ci -m "Added a" --edit
  abort: no active topic
  (see 'hg help -e topic.topic-mode' for details)
  [255]
  $ hg ci -m "added a" --config experimental.topic-mode=ignore
  $ hg log
  changeset:   0:a154386e50d1
  tag:         tip
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     added a
  

Testing the config knob to warn about untopiced commit
==========================================================

  $ hg init $TESTTMP/untopic-warn-commit
  $ cd $TESTTMP/untopic-warn-commit
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = warning
  > EOF
  $ touch a b c d
  $ hg add a

(same test, checking we abort before the editor)

  $ HGEDITOR=cat hg ci -m "Added a" --edit
  warning: new draft commit without topic
  (see 'hg help -e topic.topic-mode' for details)
  Added a
  
  
  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  HG: Leave message empty to abort commit.
  HG: --
  HG: user: test
  HG: branch 'default'
  HG: added a

  $ HGEDITOR=cat hg ci --amend -m "Added a" --edit
  Added a
  
  
  HG: Enter commit message.  Lines beginning with 'HG:' are removed.
  HG: Leave message empty to abort commit.
  HG: --
  HG: user: test
  HG: branch 'default'
  HG: added a
  $ hg ci --amend -m "added a'" --config experimental.topic-mode=ignore
  $ hg log
  changeset:   2:2e862d8b5eff
  tag:         tip
  parent:      -1:000000000000
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     added a'
  

Testing the config knob to warn about untopiced merge commit
================================================================

  $ hg init $TESTTMP/test-untopic-merge-commit
  $ cd $TESTTMP/test-untopic-merge-commit
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = enforce
  > EOF
  $ touch ROOT
  $ hg commit -A -m "ROOT" --config experimental.topic-mode=ignore
  adding ROOT
  $ touch a
  $ hg add a
  $ hg topic mytopic
  marked working directory as topic: mytopic
  $ hg ci -m "Added a"
  active topic 'mytopic' grew its first changeset

  $ hg up -r "desc('ROOT')"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ touch default
  $ hg add default
  $ hg commit -m "default" --config experimental.topic-mode=ignore

  $ hg merge mytopic
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m "merge mytopic"
  warning: new draft commit without topic
  (see 'hg help -e topic.topic-mode' for details)

  $ hg log -G
  @    changeset:   3:676a445d1c09
  |\   tag:         tip
  | |  parent:      2:a4da109ee59f
  | |  parent:      1:e5b6c632bd8e
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     merge mytopic
  | |
  | o  changeset:   2:a4da109ee59f
  | |  parent:      0:ec1d2790416d
  | |  user:        test
  | |  date:        Thu Jan 01 00:00:00 1970 +0000
  | |  summary:     default
  | |
  o |  changeset:   1:e5b6c632bd8e
  |/   topic:       mytopic
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     Added a
  |
  o  changeset:   0:ec1d2790416d
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  

Testing the config knob to about on untopiced merge commit
================================================================

  $ hg init $TESTTMP/test-untopic-merge-commit-abort
  $ cd $TESTTMP/test-untopic-merge-commit-abort
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = enforce-all
  > EOF
  $ touch ROOT
  $ hg commit -A -m "ROOT" --config experimental.topic-mode=ignore
  adding ROOT
  $ touch a
  $ hg add a
  $ hg topic mytopic
  marked working directory as topic: mytopic
  $ hg ci -m "Added a"
  active topic 'mytopic' grew its first changeset

  $ hg up -r "desc('ROOT')"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ touch default
  $ hg add default
  $ hg commit -m "default" --config experimental.topic-mode=ignore

  $ hg merge mytopic
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg commit -m "merge mytopic"
  abort: no active topic
  (see 'hg help -e topic.topic-mode' for details)
  [255]

  $ hg log -G
  @  changeset:   2:a4da109ee59f
  |  tag:         tip
  |  parent:      0:ec1d2790416d
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     default
  |
  | @  changeset:   1:e5b6c632bd8e
  |/   topic:       mytopic
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     Added a
  |
  o  changeset:   0:ec1d2790416d
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
Testing the config knob to use a random topic for untopic commit
====================================================================

  $ hg init $TESTTMP/test-untopic-random
  $ cd $TESTTMP/test-untopic-random
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = random
  > EOF

  $ touch ROOT
  $ hg commit -A -m "ROOT" --config experimental.topic-mode=ignore
  adding ROOT

  $ touch A
  $ hg add A
  $ hg commit -m "Add A" --config devel.randomseed=42
  active topic 'panoramic-antelope' grew its first changeset

  $ hg up -r "desc(ROOT)"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ touch B
  $ hg add B
  $ hg commit -m "Add B" --config devel.randomseed=128
  active topic 'various-dove' grew its first changeset

Test a merge too

  $ hg phase --public -r .
  active topic 'various-dove' is now empty
  $ hg up default
  clearing empty topic "various-dove"
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -G
  @  changeset:   2:2d2acb6efad5
  |  tag:         tip
  |  parent:      0:ec1d2790416d
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add B
  |
  | o  changeset:   1:d4b548f35972
  |/   topic:       panoramic-antelope
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     Add A
  |
  o  changeset:   0:ec1d2790416d
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ hg merge panoramic-antelope
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m 'merge'
Testing the config knob to use a random topic for untopic commit (even for merge)
=================================================================================

  $ hg init $TESTTMP/test-untopic-random-all
  $ cd $TESTTMP/test-untopic-random-all
  $ cat <<EOF >> .hg/hgrc
  > [phases]
  > publish=false
  > EOF
  $ cat <<EOF >> $HGRCPATH
  > [experimental]
  > topic-mode = random-all
  > EOF

  $ touch ROOT
  $ hg commit -A -m "ROOT" --config experimental.topic-mode=ignore
  adding ROOT

  $ touch A
  $ hg add A
  $ hg commit -m "Add A" --config devel.randomseed=42
  active topic 'panoramic-antelope' grew its first changeset

  $ hg up -r "desc(ROOT)"
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

  $ touch B
  $ hg add B
  $ hg commit -m "Add B" --config devel.randomseed=128
  active topic 'various-dove' grew its first changeset

Test a merge too

  $ hg phase --public -r .
  active topic 'various-dove' is now empty
  $ hg up default
  clearing empty topic "various-dove"
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ hg log -G
  @  changeset:   2:2d2acb6efad5
  |  tag:         tip
  |  parent:      0:ec1d2790416d
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     Add B
  |
  | o  changeset:   1:d4b548f35972
  |/   topic:       panoramic-antelope
  |    user:        test
  |    date:        Thu Jan 01 00:00:00 1970 +0000
  |    summary:     Add A
  |
  o  changeset:   0:ec1d2790416d
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     ROOT
  
  $ hg merge panoramic-antelope
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m 'merge'  --config devel.randomseed=1337
  active topic 'omniscient-locust' grew its first changeset