Test for handling of content divergence with public cset using `hg evolve`

==========================================================================

Setup

=====

  $ cat >> $HGRCPATH <<EOF

  > [alias]

  > glog = log -GT "{rev}:{node|short} {desc|firstline}\n {phase} {troubles}\n\n"

  > [phases]

  > publish = False

  > [extensions]

  > rebase =

  > EOF

  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

Testing the case when both divergent cset are on the same parent and no-conflict in merging:

-------------------------------------------------------------------------------------

Prepare the repository:

  $ hg init pubdiv

  $ cd pubdiv

  $ for ch in a b; do

  >   echo $ch > $ch;

  >   hg ci -Aqm "added "$ch;

  > done;

  $ hg glog

  @  1:5f6d8a4bf34a added b

  |   draft

  |

  o  0:9092f1db7931 added a

      draft

Make an amend and change phase to public:

  $ sed -i "1 i I am first" b

  $ hg amend

  $ hg phase --public

Amend again to create a cset divergent to public one:

  $ hg up 1 --hidden -q

  updated to hidden changeset 5f6d8a4bf34a

  (hidden revision '5f6d8a4bf34a' was rewritten as: 44f360db368f)

  working directory parent is obsolete! (5f6d8a4bf34a)

  $ echo "I am second" >> b

  $ hg ci --amend -m "updated b"

  1 new content-divergent changesets

  $ hg glog

  @  3:dcdaf152280a updated b

  |   draft content-divergent

  |

  | o  2:44f360db368f added b

  |/    public

  |

  o  0:9092f1db7931 added a

      public

Lets resolve the public content-divergence:

  $ hg evolve --content-divergent

  merge:[2] added b

  with: [3] updated b

  base: [1] added b

  updating to "local" side of the conflict: 44f360db368f

  merging "other" content-divergent changeset 'dcdaf152280a'

  merging b

  0 files updated, 1 files merged, 0 files removed, 0 files unresolved

  committed as c1aa9cfb6cf8

  working directory is now at c1aa9cfb6cf8

Following graph log shows that it correctly merged the two divergent csets:

  $ hg glog -p

  @  5:c1aa9cfb6cf8 phase-divergent update to 44f360db368f:

  |   draft

  |

  |  diff -r 44f360db368f -r c1aa9cfb6cf8 b

  |  --- a/b	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -1,2 +1,3 @@

  |   I am first

  |   b

  |  +I am second

  |

  o  2:44f360db368f added b

  |   public

  |

  |  diff -r 9092f1db7931 -r 44f360db368f b

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,2 @@

  |  +I am first

  |  +b

  |

  o  0:9092f1db7931 added a

      public

     diff -r 000000000000 -r 9092f1db7931 a

     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

     +++ b/a	Thu Jan 01 00:00:00 1970 +0000

     @@ -0,0 +1,1 @@

     +a

  $ hg evolve -l

  $ cd ..

Testing the case when both divergent cset has same parent and has conflict in merging:

------------------------------------------------------------------------------

Prepare the repository:

  $ hg init pubdiv1

  $ cd pubdiv1

  $ for ch in a b; do

  >   echo $ch > $ch;

  >   hg ci -Aqm "added "$ch;

  > done;

  $ hg glog

  @  1:5f6d8a4bf34a added b

  |   draft

  |

  o  0:9092f1db7931 added a

      draft

Make an amend and change phase to public:

  $ echo "I am foo" > b

  $ hg amend

  $ hg phase --public

Amend again to create a cset divergent to public one:

  $ hg up 1 --hidden -q

  updated to hidden changeset 5f6d8a4bf34a

  (hidden revision '5f6d8a4bf34a' was rewritten as: 580f2d01e52c)

  working directory parent is obsolete! (5f6d8a4bf34a)

  $ echo "I am bar" > b

  $ hg ci --amend -m "updated b"

  1 new content-divergent changesets

  $ hg glog

  @  3:0e805383168e updated b

  |   draft content-divergent

  |

  | o  2:580f2d01e52c added b

  |/    public

  |

  o  0:9092f1db7931 added a

      public

Lets resolve the divergence:

  $ hg evolve --content-divergent

  merge:[2] added b

  with: [3] updated b

  base: [1] added b

  updating to "local" side of the conflict: 580f2d01e52c

  merging "other" content-divergent changeset '0e805383168e'

  merging b

  warning: conflicts while merging b! (edit, then use 'hg resolve --mark')

  0 files updated, 0 files merged, 0 files removed, 1 files unresolved

  fix conflicts and see `hg help evolve.interrupted`

  [1]

  $ echo "I am foobar" > b

  $ hg resolve -m --tool union

  (no more unresolved files)

  continue: hg evolve --continue

  $ hg evolve --continue

  committed as 1a739394e9d4

  working directory is now at 1a739394e9d4

  $ hg glog

  @  5:1a739394e9d4 phase-divergent update to 580f2d01e52c:

  |   draft

  |

  o  2:580f2d01e52c added b

  |   public

  |

  o  0:9092f1db7931 added a

      public

Testing the case when divergence is not created by actual diff change, but because of rebasing:

------------------------------------------------------------------------------------------------

Prepare the repo:

  $ cd ..

  $ hg init rebasediv

  $ cd rebasediv

  $ for ch in a b c; do

  >   echo $ch > $ch;

  >   hg ci -Am "added "$ch;

  > done;

  adding a

  adding b

  adding c

  $ hg glog

  @  2:155349b645be added c

  |   draft

  |

  o  1:5f6d8a4bf34a added b

  |   draft

  |

  o  0:9092f1db7931 added a

      draft

On server side: a new cset is added based on rev 1 and rev 2 is rebased on newly added cset:

  $ hg up .^ -q

  $ echo d > d

  $ hg ci -Am "added d"

  adding d

  created new head

  $ hg rebase -r 2 -d .

  rebasing 2:155349b645be "added c"

  $ hg glog

  o  4:c0d7ee6604ea added c

  |   draft

  |

  @  3:c9241b0f2d5b added d

  |   draft

  |

  o  1:5f6d8a4bf34a added b

  |   draft

  |

  o  0:9092f1db7931 added a

      draft

On user side: user has not pulled yet and amended the rev 2 which created the divergence after pull:

  $ hg up 2 --hidden -q

  updated to hidden changeset 155349b645be

  (hidden revision '155349b645be' was rewritten as: c0d7ee6604ea)

  working directory parent is obsolete! (155349b645be)

  $ echo cc >> c

  $ hg ci --amend -m "updated c"

  2 new content-divergent changesets

Lets change the phase to --public of branch which is pulled from server:

  $ hg phase --public -r 4

  $ hg glog -p

  @  5:f5f9b4fc8b77 updated c

  |   draft content-divergent

  |

  |  diff -r 5f6d8a4bf34a -r f5f9b4fc8b77 c

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,2 @@

  |  +c

  |  +cc

  |

  | o  4:c0d7ee6604ea added c

  | |   public

  | |

  | |  diff -r c9241b0f2d5b -r c0d7ee6604ea c

  | |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  | |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000

  | |  @@ -0,0 +1,1 @@

  | |  +c

  | |

  | o  3:c9241b0f2d5b added d

  |/    public

  |

  |    diff -r 5f6d8a4bf34a -r c9241b0f2d5b d

  |    --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |    +++ b/d	Thu Jan 01 00:00:00 1970 +0000

  |    @@ -0,0 +1,1 @@

  |    +d

  |

  o  1:5f6d8a4bf34a added b

  |   public

  |

  |  diff -r 9092f1db7931 -r 5f6d8a4bf34a b

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,1 @@

  |  +b

  |

  o  0:9092f1db7931 added a

      public

     diff -r 000000000000 -r 9092f1db7931 a

     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

     +++ b/a	Thu Jan 01 00:00:00 1970 +0000

     @@ -0,0 +1,1 @@

     +a

Evolve:

  $ hg evolve --content-divergent

  merge:[4] added c

  with: [5] updated c

  base: [2] added c

  rebasing "other" content-divergent changeset f5f9b4fc8b77 on c9241b0f2d5b

  updating to "local" side of the conflict: c0d7ee6604ea

  merging "other" content-divergent changeset 'c3d442d80993'

  1 files updated, 0 files merged, 0 files removed, 0 files unresolved

  committed as 3b336cbee992

  working directory is now at 3b336cbee992

  $ hg glog -p

  @  8:3b336cbee992 phase-divergent update to c0d7ee6604ea:

  |   draft

  |

  |  diff -r c0d7ee6604ea -r 3b336cbee992 c

  |  --- a/c	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -1,1 +1,2 @@

  |   c

  |  +cc

  |

  o  4:c0d7ee6604ea added c

  |   public

  |

  |  diff -r c9241b0f2d5b -r c0d7ee6604ea c

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/c	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,1 @@

  |  +c

  |

  o  3:c9241b0f2d5b added d

  |   public

  |

  |  diff -r 5f6d8a4bf34a -r c9241b0f2d5b d

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/d	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,1 @@

  |  +d

  |

  o  1:5f6d8a4bf34a added b

  |   public

  |

  |  diff -r 9092f1db7931 -r 5f6d8a4bf34a b

  |  --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

  |  +++ b/b	Thu Jan 01 00:00:00 1970 +0000

  |  @@ -0,0 +1,1 @@

  |  +b

  |

  o  0:9092f1db7931 added a

      public

     diff -r 000000000000 -r 9092f1db7931 a

     --- /dev/null	Thu Jan 01 00:00:00 1970 +0000

     +++ b/a	Thu Jan 01 00:00:00 1970 +0000

     @@ -0,0 +1,1 @@

     +a

Check that we don't have any unstable cset now:

  $ hg evolve -l

  $ cd ..

Testing the case when csets are on different parent and no conflict in relocation and merging:

----------------------------------------------------------------------------------------------

  $ hg init pubdiv2

  $ cd pubdiv2

  $ for ch in a b c d; do

  >   echo $ch > $ch;