view tests/test-evolve-issue5966.t @ 4722:7839720c7c75

rewind: make sure merge commits include files from p1 and p2

Otherwise rewinding a merge commit makes it lose all changes.

This fix populates `updates` argument of rewriteutil.rewrite() with parent
changesets. That argument is normally used for folding multiple changesets, but
in this case it's simply used to include files from p1 and p2. Usually,
rewrite() works fine using ctx.files(), but that function can return an empty
list when ctx is a merge commit.

Testing evolve --continue with unresolved conflicts (issue5966)
https://bz.mercurial-scm.org/show_bug.cgi?id=5966

  $ . $TESTDIR/testlib/common.sh

  $ hg init issue5966
  $ cd issue5966
  $ cat > .hg/hgrc << EOF
  > [phases]
  > publish = false
  > [alias]
  > glog = log -GT "{rev}: {desc}"
  > [extensions]
  > evolve=
  > EOF

  $ touch a
  $ hg ci -Aqm 'empty'

  $ echo apple > a
  $ hg ci -m 'apple'
  $ echo banana > a
  $ hg ci -m 'banana'
  $ echo coconut > a
  $ hg ci -m 'coconut'

  $ hg glog
  @  3: coconut
  |
  o  2: banana
  |
  o  1: apple
  |
  o  0: empty
  

  $ hg up -q 1

Amending revision 1 in a way that causes conflicts

  $ echo apricot > a
  $ hg amend -m 'apricot'
  2 new orphan changesets

  $ hg glog --hidden
  @  4: apricot
  |
  | *  3: coconut
  | |
  | *  2: banana
  | |
  | x  1: apple
  |/
  o  0: empty
  

  $ hg evolve -t :fail --rev 'first(orphan())'
  move:[2] banana
  atop:[4] apricot
  unresolved merge conflicts
  (see 'hg help evolve.interrupted')
  [1]
  $ hg evolve --list
  34a690fcf6ab: banana
    orphan: 7f59f18ca4a9 (obsolete parent)
  
  feb8c0bffa1f: coconut
    orphan: 34a690fcf6ab (orphan parent)
  
Evolve should detect unresolved conflict.

  $ hg resolve --list
  U a
  $ hg evolve --continue
  abort: unresolved merge conflicts (see 'hg help resolve')
  [255]

(even when ran twice)

  $ hg evolve --continue
  abort: unresolved merge conflicts (see 'hg help resolve')
  [255]

  $ cat a
  apricot
  $ hg resolve --list
  U a
  $ hg resolve a -t :other
  (no more unresolved files)
  continue: hg evolve --continue
  $ hg resolve --list
  R a
  $ hg evolve --continue
  evolving 2:34a690fcf6ab "banana"
  working directory is now at 581a2bb4704c
  $ hg resolve --list

evolve the rest of the stack

  $ hg evolve
  move:[3] coconut
  atop:[5] banana
  merging a

All commit evolved

  $ hg glog
  o  6: coconut
  |
  o  5: banana
  |
  @  4: apricot
  |
  o  0: empty