view tests/test-split.t @ 3802:4bad80f1aad3

evolve: pop up editor if conflicts occur while merging commit messages

Last patch added support for merging commit messages while resolving content
divergence. In case of conflicts we fallback to one of the divergent commit
messages.

After this patch, we will pop up an editor where user has to resolve the
conflicts in the commit messages and then continue.

Tests are added for this. We need to fix handling in test-sharing.t to use
HGEDITOR to fix conflicts and pass the new commit message.

Future improvement can be that we should respect HGMERGE while merging commit
descriptions too.

test of the split command
-----------------------

  $ . $TESTDIR/testlib/common.sh

  $ cat >> $HGRCPATH <<EOF
  > [defaults]
  > amend=-d "0 0"
  > fold=-d "0 0"
  > split=-d "0 0"
  > amend=-d "0 0"
  > [web]
  > push_ssl = false
  > allow_push = *
  > [phases]
  > publish = False
  > [diff]
  > git = 1
  > unified = 0
  > [ui]
  > interactive = true
  > [extensions]
  > evolve =
  > EOF
  $ mkcommit() {
  >    echo "$1" > "$1"
  >    hg add "$1"
  >    hg ci -m "add $1" $2 $3
  > }


Basic case, split a head
  $ hg init testsplit
  $ cd testsplit
  $ mkcommit _a
  $ mkcommit _b
  $ mkcommit _c --user other-test-user
  $ mkcommit _d
  $ echo "change to a" >> _a
  $ hg amend
  $ hg debugobsolete
  1334a80b33c3f9873edab728fbbcf500eab61d2e d2fe56e71366c2c5376c89960c281395062c0619 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'amend', 'user': 'test'}

To create commits with the number of split
  $ echo 0 > num
  $ cat > editor.sh << '__EOF__'
  > NUM=$(cat num)
  > NUM=`expr "$NUM" + 1`
  > echo "$NUM" > num
  > echo "split$NUM" > "$1"
  > __EOF__
  $ export HGEDITOR="\"sh\" \"editor.sh\""
  $ hg split << EOF
  > y
  > y
  > y
  > n
  > N
  > y
  > y
  > EOF
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  reverting _a
  adding _d
  diff --git a/_a b/_a
  1 hunks, 1 lines changed
  examine changes to '_a'? [Ynesfdaq?] y
  
  @@ -1,0 +2,1 @@
  +change to a
  record change 1/2 to '_a'? [Ynesfdaq?] y
  
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +_d
  record change 2/2 to '_d'? [Ynesfdaq?] n
  
  created new head
  Done splitting? [yN] N
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +_d
  record this change to '_d'? [Ynesfdaq?] y
  
  no more change to split

  $ hg debugobsolete
  1334a80b33c3f9873edab728fbbcf500eab61d2e d2fe56e71366c2c5376c89960c281395062c0619 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'amend', 'user': 'test'}
  d2fe56e71366c2c5376c89960c281395062c0619 2d8abdb827cdf71ca477ef6985d7ceb257c53c1b 033b3f5ae73db67c10de938fb6f26b949aaef172 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '13', 'operation': 'split', 'user': 'test'}
  $ hg log -G
  @  changeset:   6:033b3f5ae73d
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split2
  |
  o  changeset:   5:2d8abdb827cd
  |  parent:      2:52149352b372
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split1
  |
  o  changeset:   2:52149352b372
  |  user:        other-test-user
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     add _c
  |
  o  changeset:   1:37445b16603b
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     add _b
  |
  o  changeset:   0:135f39f4bd78
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     add _a
  

Cannot split a commit with uncommitted changes
  $ hg up "desc(_c)"
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo "_cd" > _c
  $ hg split
  abort: uncommitted changes
  [255]
  $ hg up "desc(_c)" -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

Cannot split public changeset

  $ hg phase --rev 'desc("_a")'
  0: draft
  $ hg phase --rev 'desc("_a")' --public
  $ hg split --rev 'desc("_a")'
  abort: cannot split public changesets: 135f39f4bd78
  (see 'hg help phases' for details)
  [255]
  $ hg phase --rev 'desc("_a")' --draft --force

Split a revision specified with -r
  $ echo "change to b" >> _b
  $ hg amend -m "_cprim"
  2 new orphan changesets
  $ hg evolve --all
  move:[5] split1
  atop:[7] _cprim
  move:[6] split2
  atop:[8] split1
  working directory is now at * (glob)
  $ hg log -r "desc(_cprim)" -v -p
  changeset:   7:b434287e665c
  parent:      1:37445b16603b
  user:        other-test-user
  date:        Thu Jan 01 00:00:00 1970 +0000
  files:       _b _c
  description:
  _cprim
  
  
  diff --git a/_b b/_b
  --- a/_b
  +++ b/_b
  @@ -1,0 +2,1 @@
  +change to b
  diff --git a/_c b/_c
  new file mode 100644
  --- /dev/null
  +++ b/_c
  @@ -0,0 +1,1 @@
  +_c
  
  $ hg split -r "desc(_cprim)" <<EOF
  > y
  > y
  > y
  > n
  > y
  > EOF
  2 files updated, 0 files merged, 2 files removed, 0 files unresolved
  reverting _b
  adding _c
  diff --git a/_b b/_b
  1 hunks, 1 lines changed
  examine changes to '_b'? [Ynesfdaq?] y
  
  @@ -1,0 +2,1 @@
  +change to b
  record change 1/2 to '_b'? [Ynesfdaq?] y
  
  diff --git a/_c b/_c
  new file mode 100644
  examine changes to '_c'? [Ynesfdaq?] y
  
  @@ -0,0 +1,1 @@
  +_c
  record change 2/2 to '_c'? [Ynesfdaq?] n
  
  created new head
  Done splitting? [yN] y
  2 new orphan changesets

Stop before splitting the commit completely creates a commit with all the
remaining changes

  $ hg debugobsolete
  1334a80b33c3f9873edab728fbbcf500eab61d2e d2fe56e71366c2c5376c89960c281395062c0619 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '8', 'operation': 'amend', 'user': 'test'}
  d2fe56e71366c2c5376c89960c281395062c0619 2d8abdb827cdf71ca477ef6985d7ceb257c53c1b 033b3f5ae73db67c10de938fb6f26b949aaef172 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '13', 'operation': 'split', 'user': 'test'}
  52149352b372d39b19127d5bd2d488b1b63f9f85 b434287e665ce757ee5463a965cb3d119ca9e893 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '9', 'operation': 'amend', 'user': 'test'}
  2d8abdb827cdf71ca477ef6985d7ceb257c53c1b e2b4afde39803bd42bb1374b230fca1b1e8cc868 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '4', 'operation': 'evolve', 'user': 'test'}
  033b3f5ae73db67c10de938fb6f26b949aaef172 bb5e4f6020c74e7961a51fda635ea9df9b04dda8 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '4', 'operation': 'evolve', 'user': 'test'}
  b434287e665ce757ee5463a965cb3d119ca9e893 ead2066d1dbf14833fe1069df1b735e4e9468c40 1188c4216eba37f18a1de6558564601d00ff2143 0 (Thu Jan 01 00:00:00 1970 +0000) {'ef1': '13', 'operation': 'split', 'user': 'test'}
  $ hg evolve --all
  move:[8] split1
  atop:[11] split4
  move:[9] split2
  atop:[12] split1
  working directory is now at d74c6715e706
  $ hg log -G
  @  changeset:   13:d74c6715e706
  |  tag:         tip
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split2
  |
  o  changeset:   12:3f134f739075
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split1
  |
  o  changeset:   11:1188c4216eba
  |  user:        other-test-user
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split4
  |
  o  changeset:   10:ead2066d1dbf
  |  parent:      1:37445b16603b
  |  user:        other-test-user
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split3
  |
  o  changeset:   1:37445b16603b
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     add _b
  |
  o  changeset:   0:135f39f4bd78
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     add _a
  

Split should move bookmarks on the last split successor and preserve the
active bookmark as active
  $ hg book bookA
  $ hg book bookB
  $ echo "changetofilea" > _a
  $ hg amend
  $ hg book
     bookA                     14:7a6b35779b85
   * bookB                     14:7a6b35779b85
  $ hg log -G -r "3f134f739075::"
  @  changeset:   14:7a6b35779b85
  |  bookmark:    bookA
  |  bookmark:    bookB
  |  tag:         tip
  |  parent:      12:3f134f739075
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split2
  |
  o  changeset:   12:3f134f739075
  |  user:        test
  ~  date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split1
  
  $ hg split --user victor <<EOF
  > y
  > y
  > n
  > y
  > EOF
  (leaving bookmark bookB)
  1 files updated, 0 files merged, 1 files removed, 0 files unresolved
  reverting _a
  adding _d
  diff --git a/_a b/_a
  1 hunks, 2 lines changed
  examine changes to '_a'? [Ynesfdaq?] y
  
  @@ -1,2 +1,1 @@
  -_a
  -change to a
  +changetofilea
  record change 1/2 to '_a'? [Ynesfdaq?] y
  
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] n
  
  created new head
  Done splitting? [yN] y
  $ hg log -G -r "3f134f739075::"
  @  changeset:   16:452a26648478
  |  bookmark:    bookA
  |  bookmark:    bookB
  |  tag:         tip
  |  user:        victor
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split6
  |
  o  changeset:   15:1315679b77dc
  |  parent:      12:3f134f739075
  |  user:        victor
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split5
  |
  o  changeset:   12:3f134f739075
  |  user:        test
  ~  date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split1
  
  $ hg book
     bookA                     16:452a26648478
   * bookB                     16:452a26648478
 
Lastest revision is selected if multiple are given to -r
  $ hg split -r "desc(_a)::"
  (leaving bookmark bookB)
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  adding _d
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] abort: response expected
  [255]

Cannot split a commit that is not a head if instability is not allowed
  $ cat >> $HGRCPATH <<EOF
  > [experimental]
  > evolution=createmarkers
  > evolutioncommands=split
  > EOF
  $ hg split -r "desc(split3)"
  abort: split will orphan 4 descendants
  (see 'hg help evolution.instability')
  [255]

Changing evolution level to createmarkers
  $ echo "[experimental]" >> $HGRCPATH
  $ echo "evolution=createmarkers" >> $HGRCPATH

Running split without any revision operates on the parent of the working copy
  $ hg split << EOF
  > q
  > EOF
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  adding _d
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] q
  
  abort: user quit
  [255]

Running split with tip revision, specified as unnamed argument
  $ hg split . << EOF
  > q
  > EOF
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  adding _d
  diff --git a/_d b/_d
  new file mode 100644
  examine changes to '_d'? [Ynesfdaq?] q
  
  abort: user quit
  [255]

Running split with both unnamed and named revision arguments shows an error msg
  $ hg split . --rev .^ << EOF
  > q
  > EOF
  abort: more than one revset is given
  (use either `hg split <rs>` or `hg split --rev <rs>`, not both)
  [255]

Split empty commit (issue5191)
  $ hg branch new-branch
  marked working directory as branch new-branch
  (branches are permanent and global, did you want a bookmark?)
  $ hg commit -m "empty"
  $ hg split
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

Check that split keeps the right topic

  $ hg up -r tip
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved

Add topic to the hgrc

  $ echo "[extensions]" >> $HGRCPATH
  $ echo "topic=$(echo $(dirname $TESTDIR))/hgext3rd/topic/" >> $HGRCPATH
  $ hg topic mytopic
  marked working directory as topic: mytopic
  $ echo babar > babar
  $ echo celeste > celeste
  $ hg add babar celeste
  $ hg commit -m "Works on mytopic" babar celeste --user victor
  active topic 'mytopic' grew its first changeset
  (see 'hg help topics' for more information)
  $ hg log -r . 
  changeset:   18:26f72cfaf036
  branch:      new-branch
  tag:         tip
  topic:       mytopic
  user:        victor
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     Works on mytopic
  
  $ hg summary
  parent: 18:26f72cfaf036 tip
   Works on mytopic
  branch: new-branch
  commit: 2 unknown (clean)
  update: (current)
  phases: 9 draft
  topic:  mytopic

Split it

  $ hg split -U << EOF
  > Y
  > Y
  > N
  > Y
  > Y
  > Y
  > EOF
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  adding babar
  adding celeste
  diff --git a/babar b/babar
  new file mode 100644
  examine changes to 'babar'? [Ynesfdaq?] Y
  
  @@ -0,0 +1,1 @@
  +babar
  record change 1/2 to 'babar'? [Ynesfdaq?] Y
  
  diff --git a/celeste b/celeste
  new file mode 100644
  examine changes to 'celeste'? [Ynesfdaq?] N
  
  Done splitting? [yN] Y
  diff --git a/celeste b/celeste
  new file mode 100644
  examine changes to 'celeste'? [Ynesfdaq?] Y
  
  @@ -0,0 +1,1 @@
  +celeste
  record this change to 'celeste'? [Ynesfdaq?] Y
  
  no more change to split

Check that the topic is still here

  $ hg log -r "tip~1::"
  changeset:   19:addcf498f19e
  branch:      new-branch
  topic:       mytopic
  parent:      17:fdb403258632
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     split7
  
  changeset:   20:2532b288af61
  branch:      new-branch
  tag:         tip
  topic:       mytopic
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     split8
  
  $ hg topic
   * mytopic (2 changesets)

Test split the first commit on a branch

  $ touch SPLIT1 SPLIT2
  $ hg add SPLIT1 SPLIT2
  $ hg branch another-branch
  marked working directory as branch another-branch
  $ hg commit -m "To be splitted"
  $ hg log -G -l 3
  @  changeset:   21:8dad923bdb9b
  |  branch:      another-branch
  |  tag:         tip
  |  topic:       mytopic
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     To be splitted
  |
  o  changeset:   20:2532b288af61
  |  branch:      new-branch
  |  topic:       mytopic
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split8
  |
  o  changeset:   19:addcf498f19e
  |  branch:      new-branch
  ~  topic:       mytopic
     parent:      17:fdb403258632
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split7
  
  $ hg export .
  # HG changeset patch
  # User test
  # Date 0 0
  #      Thu Jan 01 00:00:00 1970 +0000
  # Branch another-branch
  # Node ID 8dad923bdb9bb3b99291caa5baeb03bbc30dfd33
  # Parent  2532b288af61bd19239a95ae2a3ecb9b0ad4b8e1
  # EXP-Topic mytopic
  To be splitted
  
  diff --git a/SPLIT1 b/SPLIT1
  new file mode 100644
  diff --git a/SPLIT2 b/SPLIT2
  new file mode 100644

  $ hg split -r . << EOF
  > Y
  > N
  > N
  > Y
  > EOF
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  adding SPLIT1
  adding SPLIT2
  diff --git a/SPLIT1 b/SPLIT1
  new file mode 100644
  examine changes to 'SPLIT1'? [Ynesfdaq?] Y
  
  diff --git a/SPLIT2 b/SPLIT2
  new file mode 100644
  examine changes to 'SPLIT2'? [Ynesfdaq?] N
  
  Done splitting? [yN] N
  diff --git a/SPLIT2 b/SPLIT2
  new file mode 100644
  examine changes to 'SPLIT2'? [Ynesfdaq?] Y
  
  no more change to split

The splitted changesets should be on the 'another-branch'
  $ hg log -G -l 3
  @  changeset:   23:56a59faa8af7
  |  branch:      another-branch
  |  tag:         tip
  |  topic:       mytopic
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split10
  |
  o  changeset:   22:75695e3e2300
  |  branch:      another-branch
  |  topic:       mytopic
  |  parent:      20:2532b288af61
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     split9
  |
  o  changeset:   20:2532b288af61
  |  branch:      new-branch
  ~  topic:       mytopic
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split8
  

Try splitting the first changeset of a branch then cancel

  $ hg branch yet-another-branch
  marked working directory as branch yet-another-branch
  $ touch SPLIT3 SPLIT4
  $ hg add SPLIT3 SPLIT4
  $ hg commit -m "To be splitted again"

  $ hg up "tip~1"
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ hg log -G -l 2
  o  changeset:   24:b1020d17c364
  |  branch:      yet-another-branch
  |  tag:         tip
  |  topic:       mytopic
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     To be splitted again
  |
  @  changeset:   23:56a59faa8af7
  |  branch:      another-branch
  ~  topic:       mytopic
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split10
  
  $ hg branch
  another-branch

  $ hg split -r tip << EOF
  > Y
  > q
  > EOF
  0 files updated, 0 files merged, 0 files removed, 0 files unresolved
  adding SPLIT3
  adding SPLIT4
  diff --git a/SPLIT3 b/SPLIT3
  new file mode 100644
  examine changes to 'SPLIT3'? [Ynesfdaq?] Y
  
  diff --git a/SPLIT4 b/SPLIT4
  new file mode 100644
  examine changes to 'SPLIT4'? [Ynesfdaq?] q
  
  abort: user quit
  [255]

  $ hg branch
  another-branch

  $ hg log -G -l 2
  o  changeset:   24:b1020d17c364
  |  branch:      yet-another-branch
  |  tag:         tip
  |  topic:       mytopic
  |  user:        test
  |  date:        Thu Jan 01 00:00:00 1970 +0000
  |  summary:     To be splitted again
  |
  @  changeset:   23:56a59faa8af7
  |  branch:      another-branch
  ~  topic:       mytopic
     user:        test
     date:        Thu Jan 01 00:00:00 1970 +0000
     summary:     split10