tests/test-graft.t

checkheads: take future obsoleted heads into account

If we push some successors they will likely create a new head on
remote. However as the obsoleted head will disappear after the push we
are not really increasing the number of heads.

There is several case which will lead to extra being actually pushed. But this
first changeset aims to be simple. See the inline comment for details.

Without this change, you need to push --force every time you want to
push a newer version which is very error prone.

The remote side still display +n heads on unbundle because it does not have the
obsolete marker at unbundle time.

Create a repo with some stuff in it:

  $ hg init a
  $ cd a
  $ echo a > a
  $ echo a > d
  $ echo a > e
  $ hg ci -qAm0
  $ echo b > a
  $ hg ci -m1 -u bar
  $ hg mv a b
  $ hg ci -m2
  $ hg cp b c
  $ hg ci -m3 -u baz
  $ echo b > d
  $ echo f > e
  $ hg ci -m4
  $ hg up -q 3
  $ echo b > e
  $ hg branch -q stable
  $ hg ci -m5
  $ hg merge -q default --tool internal:local
  $ hg branch -q default
  $ hg ci -m6
  $ hg phase --public 3
  $ hg phase --force --secret 6

  $ hg --config extensions.graphlog= log -G --template '{author}@{rev}.{phase}: {desc}\n'
  @    [e-mail]: 6
  |\
  | o  [e-mail]: 5
  | |
  o |  [e-mail]: 4
  |/
  o  [e-mail]: 3
  |
  o  [e-mail]: 2
  |
  o  [e-mail]: 1
  |
  o  [e-mail]: 0
  

Need to specify a rev:

  $ hg graft
  abort: no revisions specified
  [255]

Can't graft ancestor:

  $ hg graft 1 2
  skipping ancestor revision 1
  skipping ancestor revision 2
  [255]

Specify revisions with -r:

  $ hg graft -r 1 -r 2
  skipping ancestor revision 1
  skipping ancestor revision 2
  [255]

  $ hg graft -r 1 2
  skipping ancestor revision 2
  skipping ancestor revision 1
  [255]

Can't graft with dirty wd:

  $ hg up -q 0
  $ echo foo > a
  $ hg graft 1
  abort: outstanding uncommitted changes
  [255]
  $ hg revert a

Graft a rename:

  $ hg graft 2 -u foo
  grafting revision 2
  merging a and b to b
  $ hg export tip --git
  # HG changeset patch
  # User foo
  # Date 0 0
  # Node ID ef0ef43d49e79e81ddafdc7997401ba0041efc82
  # Parent  68795b066622ca79a25816a662041d8f78f3cd9e
  2
  
  diff --git a/a b/b
  rename from a
  rename to b

Look for extra:source

  $ hg log --debug -r tip
  changeset:   7:ef0ef43d49e79e81ddafdc7997401ba0041efc82
  tag:         tip
  phase:       draft
  parent:      0:68795b066622ca79a25816a662041d8f78f3cd9e
  parent:      -1:0000000000000000000000000000000000000000
  manifest:    7:e59b6b228f9cbf9903d5e9abf996e083a1f533eb
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  files+:      b
  files-:      a
  extra:       branch=default
  extra:       source=5c095ad7e90f871700f02dd1fa5012cb4498a2d4
  description:
  2
  
  

Graft out of order, skipping a merge and a duplicate

  $ hg graft 1 5 4 3 'merge()' 2 -n
  skipping ungraftable merge revision 6
  skipping already grafted revision 2
  grafting revision 1
  grafting revision 5
  grafting revision 4
  grafting revision 3

  $ hg graft 1 5 4 3 'merge()' 2 --debug
  skipping ungraftable merge revision 6
  scanning for duplicate grafts
  skipping already grafted revision 2
  grafting revision 1
    searching for copies back to rev 1
    unmatched files in local:
     b
    all copies found (* = to merge, ! = divergent, % = renamed and deleted):
     b -> a *
    checking for directory renames
  resolving manifests
   overwrite: False, partial: False
   ancestor: 68795b066622, local: ef0ef43d49e7+, remote: 5d205f8b35b6
   b: local copied/moved to a -> m
  preserving b for resolve of b
  updating: b 1/1 files (100.00%)
  picked tool 'internal:merge' for b (binary False symlink False)
  merging b and a to b
  my b@ef0ef43d49e7+ other a@5d205f8b35b6 ancestor a@68795b066622
   premerge successful
  b
  grafting revision 5
    searching for copies back to rev 1
  resolving manifests
   overwrite: False, partial: False
   ancestor: 4c60f11aa304, local: 6b9e5368ca4e+, remote: 97f8bfe72746
   e: remote is newer -> g
  updating: e 1/1 files (100.00%)
  getting e
  e
  grafting revision 4
    searching for copies back to rev 1
  resolving manifests
   overwrite: False, partial: False
   ancestor: 4c60f11aa304, local: 1905859650ec+, remote: 9c233e8e184d
   e: versions differ -> m
   d: remote is newer -> g
  preserving e for resolve of e
  updating: d 1/2 files (50.00%)
  getting d
  updating: e 2/2 files (100.00%)
  picked tool 'internal:merge' for e (binary False symlink False)
  merging e
  my e@1905859650ec+ other e@9c233e8e184d ancestor e@68795b066622
  warning: conflicts during merge.
  merging e incomplete! (edit conflicts, then use 'hg resolve --mark')
  abort: unresolved conflicts, can't continue
  (use hg resolve and hg graft --continue)
  [255]

Continue without resolve should fail:

  $ hg graft -c
  grafting revision 4
  abort: unresolved merge conflicts (see hg help resolve)
  [255]

Fix up:

  $ echo b > e
  $ hg resolve -m e

Continue with a revision should fail:

  $ hg graft -c 6
  abort: can't specify --continue and revisions
  [255]

  $ hg graft -c -r 6
  abort: can't specify --continue and revisions
  [255]

Continue for real, clobber usernames

  $ hg graft -c -U
  grafting revision 4
  grafting revision 3

Compare with original:

  $ hg diff -r 6
  $ hg status --rev 0:. -C
  M d
  M e
  A b
    a
  A c
    a
  R a

View graph:

  $ hg --config extensions.graphlog= log -G --template '{author}@{rev}.{phase}: {desc}\n'
  @  [e-mail]: 3
  |
  o  [e-mail]: 4
  |
  o  [e-mail]: 5
  |
  o  [e-mail]: 1
  |
  o  [e-mail]: 2
  |
  | o    [e-mail]: 6
  | |\
  | | o  [e-mail]: 5
  | | |
  | o |  [e-mail]: 4
  | |/
  | o  [e-mail]: 3
  | |
  | o  [e-mail]: 2
  | |
  | o  [e-mail]: 1
  |/
  o  [e-mail]: 0
  
Graft again onto another branch should preserve the original source
  $ hg up -q 0
  $ echo 'g'>g
  $ hg add g
  $ hg ci -m 7
  created new head
  $ hg graft 7
  grafting revision 7

  $ hg log -r 7 --template '{rev}:{node}\n'
  7:ef0ef43d49e79e81ddafdc7997401ba0041efc82
  $ hg log -r 2 --template '{rev}:{node}\n'
  2:5c095ad7e90f871700f02dd1fa5012cb4498a2d4

  $ hg log --debug -r tip
  changeset:   13:9db0f28fd3747e92c57d015f53b5593aeec53c2d
  tag:         tip
  phase:       draft
  parent:      12:b592ea63bb0c19a6c5c44685ee29a2284f9f1b8f
  parent:      -1:0000000000000000000000000000000000000000
  manifest:    13:dc313617b8c32457c0d589e0dbbedfe71f3cd637
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  files+:      b
  files-:      a
  extra:       branch=default
  extra:       source=5c095ad7e90f871700f02dd1fa5012cb4498a2d4
  description:
  2
  
  
Disallow grafting an already grafted cset onto its original branch
  $ hg up -q 6
  $ hg graft 7
  skipping already grafted revision 7 (was grafted from 2)
  [255]

Disallow grafting already grafted csets with the same origin onto each other
  $ hg up -q 13
  $ hg graft 2
  skipping already grafted revision 2
  [255]
  $ hg graft 7
  skipping already grafted revision 7 (same origin 2)
  [255]

  $ hg up -q 7
  $ hg graft 2
  skipping already grafted revision 2
  [255]
  $ hg graft tip
  skipping already grafted revision 13 (same origin 2)
  [255]

Graft with --log

  $ hg up -Cq 1
  $ hg graft 3 --log -u foo
  grafting revision 3
  warning: can't find ancestor for 'c' copied from 'b'!
  $ hg log --template '{rev} {parents} {desc}\n' -r tip
  14 1:5d205f8b35b6  3
  (grafted from 4c60f11aa304a54ae1c199feb94e7fc771e51ed8)

Resolve conflicted graft
  $ hg up -q 0
  $ echo b > a
  $ hg ci -m 8
  created new head
  $ echo a > a
  $ hg ci -m 9
  $ hg graft 1 --tool internal:fail
  grafting revision 1
  abort: unresolved conflicts, can't continue
  (use hg resolve and hg graft --continue)
  [255]
  $ hg resolve --all
  merging a
  $ hg graft -c
  grafting revision 1
  $ hg export tip --git
  # HG changeset patch
  # User bar
  # Date 0 0
  # Node ID 64ecd9071ce83c6e62f538d8ce7709d53f32ebf7
  # Parent  4bdb9a9d0b84ffee1d30f0dfc7744cade17aa19c
  1
  
  diff --git a/a b/a
  --- a/a
  +++ b/a
  @@ -1,1 +1,1 @@
  -a
  +b

Resolve conflicted graft with rename
  $ echo c > a
  $ hg ci -m 10
  $ hg graft 2 --tool internal:fail
  grafting revision 2
  abort: unresolved conflicts, can't continue
  (use hg resolve and hg graft --continue)
  [255]
  $ hg resolve --all
  merging a and b to b
  $ hg graft -c
  grafting revision 2
  $ hg export tip --git
  # HG changeset patch
  # User test
  # Date 0 0
  # Node ID 2e80e1351d6ed50302fe1e05f8bd1d4d412b6e11
  # Parent  e5a51ae854a8bbaaf25cc5c6a57ff46042dadbb4
  2
  
  diff --git a/a b/b
  rename from a
  rename to b

Test simple origin(), with and without args
  $ hg log -r 'origin()'
  changeset:   1:5d205f8b35b6
  user:        bar
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   2:5c095ad7e90f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   3:4c60f11aa304
  user:        baz
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   4:9c233e8e184d
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   5:97f8bfe72746
  branch:      stable
  parent:      3:4c60f11aa304
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  $ hg log -r 'origin(7)'
  changeset:   2:5c095ad7e90f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
Now transplant a graft to test following through copies
  $ hg up -q 0
  $ hg branch -q dev
  $ hg ci -qm "dev branch"
  $ hg --config extensions.transplant= transplant -q 7
  $ hg log -r 'origin(.)'
  changeset:   2:5c095ad7e90f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
Test simple destination
  $ hg log -r 'destination()'
  changeset:   7:ef0ef43d49e7
  parent:      0:68795b066622
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   8:6b9e5368ca4e
  user:        bar
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   9:1905859650ec
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     5
  
  changeset:   10:52dc0b4c6907
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     4
  
  changeset:   11:882b35362a6b
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   13:9db0f28fd374
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   14:f64defefacee
  parent:      1:5d205f8b35b6
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     3
  
  changeset:   17:64ecd9071ce8
  user:        bar
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     1
  
  changeset:   19:2e80e1351d6e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   21:7e61b508e709
  branch:      dev
  tag:         tip
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  $ hg log -r 'destination(2)'
  changeset:   7:ef0ef43d49e7
  parent:      0:68795b066622
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   13:9db0f28fd374
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   19:2e80e1351d6e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   21:7e61b508e709
  branch:      dev
  tag:         tip
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
Transplants of grafts can find a destination...
  $ hg log -r 'destination(7)'
  changeset:   21:7e61b508e709
  branch:      dev
  tag:         tip
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
... grafts of grafts unfortunately can't
  $ hg graft -q 13
  $ hg log -r 'destination(13)'
All copies of a cset
  $ hg log -r 'origin(13) or destination(origin(13))'
  changeset:   2:5c095ad7e90f
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   7:ef0ef43d49e7
  parent:      0:68795b066622
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   13:9db0f28fd374
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   19:2e80e1351d6e
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   21:7e61b508e709
  branch:      dev
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2
  
  changeset:   22:1313d0a825e2
  branch:      dev
  tag:         tip
  user:        foo
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     2