annotate tests/test-evolve-issue5832.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.

Test for issue 5832 present at https://bz.mercurial-scm.org/show_bug.cgi?id=5832
================================================================================

Setup
=====

  $ cat >> $HGRCPATH <<EOF
  > [phases]
  > publish = False
  > [alias]
  > glog = log -GT "{rev}:{node|short} {desc}\n ({bookmarks}) {phase}"
  > [extensions]
  > EOF
  $ echo "evolve=$(echo $(dirname $TESTDIR))/hgext3rd/evolve/" >> $HGRCPATH

  $ hg init issue5832
  $ cd issue5832

  $ echo base > base
  $ hg ci -Aqm "added base"

  $ echo a > a
  $ hg ci -Aqm "added a"

  $ echo b > b
  $ hg ci -Aqm "added b"

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c > c
  $ echo d > d
  $ hg ci -Aqm "added c and d"

  $ hg merge
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m "merge commit"

  $ hg glog
  @    4:b9b387427a53 merge commit
  |\    () draft
  | o  3:9402371b436e added c and d
  | |   () draft
  o |  2:a1da0651488c added b
  | |   () draft
  o |  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg up 1b24879c5c3c
  0 files updated, 0 files merged, 3 files removed, 0 files unresolved
  $ echo foo > a
  $ hg amend
  2 new orphan changesets

  $ hg up bde1d2b6b5e5
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Aqm "added c"
  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo d > d
  $ hg ci -Aqm "added d"
  $ hg glog
  @  7:5841d7cf9893 added d
  |   () draft
  | o  6:62fb70414f99 added c
  |/    () draft
  | o  5:7014ec2829cd added a
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---o  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg prune -r 9402371b436e --succ 62fb70414f99 --succ 5841d7cf9893 --split
  1 changesets pruned

  $ hg glog
  @  7:5841d7cf9893 added d
  |   () draft
  | o  6:62fb70414f99 added c
  |/    () draft
  | o  5:7014ec2829cd added a
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---x  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

Checking what evolve is trying to do

  $ hg evolve --dry-run --any --all
  move:[2] added b
  atop:[5] added a
  hg rebase -r a1da0651488c -d 7014ec2829cd
  could not solve instability, ambiguous destination: parent split across two branches

Resolving instability using `hg evolve`

  $ hg evolve --any --all --config ui.interactive=True <<EOF
  > 1
  > EOF
  move:[2] added b
  atop:[5] added a
  move:[4] merge commit
  ancestor '7235ef625ea3' split over multiple topological branches.
  choose an evolve destination:
  1: [62fb70414f99] added c
  2: [5841d7cf9893] added d
  q: quit the prompt
  enter the index of the revision you want to select: 1
  move:[9] merge commit
  atop:[6] added c

  $ hg glog
  o    10:28a0775ac832 merge commit
  |\    () draft
  | o  8:2baf8bae7ea4 added b
  | |   () draft
  | | @  7:5841d7cf9893 added d
  | | |   () draft
  o---+  6:62fb70414f99 added c
   / /    () draft
  o /  5:7014ec2829cd added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ cd ..

Test for issue5833 present at https://bz.mercurial-scm.org/show_bug.cgi?id=5833
===============================================================================

  $ hg init issue5833
  $ cd issue5833
  $ echo base > base
  $ hg ci -Aqm "added base"

  $ echo a > a
  $ hg ci -Aqm "added a"

  $ echo b > b
  $ hg ci -Aqm "added b"

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c > c
  $ echo d > d
  $ hg ci -Aqm "added c and d"

  $ hg merge
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m "merge commit"

  $ hg glog
  @    4:b9b387427a53 merge commit
  |\    () draft
  | o  3:9402371b436e added c and d
  | |   () draft
  o |  2:a1da0651488c added b
  | |   () draft
  o |  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft
  $ hg log -r 'p1(.)'
  changeset:   3:9402371b436e
  parent:      0:bde1d2b6b5e5
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     added c and d
  
  $ hg up bde1d2b6b5e5
  0 files updated, 0 files merged, 4 files removed, 0 files unresolved
  $ echo l > l
  $ hg ci -Aqm "added l"
  $ hg pick -r 1b24879c5c3c
  picking 1:1b24879c5c3c "added a"
  2 new orphan changesets

  $ hg up bde1d2b6b5e5
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Aqm "added c"
  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo d > d
  $ hg ci -Aqm "added d"

  $ hg glog
  @  8:5841d7cf9893 added d
  |   () draft
  | o  7:62fb70414f99 added c
  |/    () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---o  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg prune -r 9402371b436e --succ 5841d7cf9893 --succ 62fb70414f99 --split
  1 changesets pruned

  $ hg glog
  @  8:5841d7cf9893 added d
  |   () draft
  | o  7:62fb70414f99 added c
  |/    () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---x  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg evolve --any --all --dry-run
  move:[2] added b
  atop:[6] added a
  hg rebase -r a1da0651488c -d 5568b87b1491
  could not solve instability, ambiguous destination: parent split across two branches

  $ hg evolve --any --all --config ui.interactive=True <<EOF
  > 2
  > EOF
  move:[2] added b
  atop:[6] added a
  move:[4] merge commit
  ancestor 'cdf2ea1b9312' split over multiple topological branches.
  choose an evolve destination:
  1: [62fb70414f99] added c
  2: [5841d7cf9893] added d
  q: quit the prompt
  enter the index of the revision you want to select: 2
  move:[10] merge commit
  atop:[8] added d

  $ hg glog
  o    11:460e6e72b7f9 merge commit
  |\    () draft
  | o  9:da76bb7cd904 added b
  | |   () draft
  @ |  8:5841d7cf9893 added d
  | |   () draft
  +---o  7:62fb70414f99 added c
  | |     () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ cd ..

Test for issue5946 present at https://bz.mercurial-scm.org/show_bug.cgi?id=5946
===============================================================================
issue with computing dependency with split and merge

  $ hg init issue5946
  $ cd issue5946
  $ echo base > base
  $ hg ci -Aqm "added base"

  $ echo a > a
  $ hg ci -Aqm "added a"

  $ echo b > b
  $ hg ci -Aqm "added b"

  $ hg up .^^
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c > c
  $ echo d > d
  $ hg ci -Aqm "added c and d"
The next line is the only difference from issue5833 above, i.e. the order of
the parents is reversed
  $ hg co 2
  2 files updated, 0 files merged, 2 files removed, 0 files unresolved

  $ hg merge
  2 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -m "merge commit"

  $ hg glog
  @    4:b9b387427a53 merge commit
  |\    () draft
  | o  3:9402371b436e added c and d
  | |   () draft
  o |  2:a1da0651488c added b
  | |   () draft
  o |  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft
  $ hg log -r 'p1(.)'
  changeset:   2:a1da0651488c
  user:        test
  date:        Thu Jan 01 00:00:00 1970 +0000
  summary:     added b
  
  $ hg up bde1d2b6b5e5
  0 files updated, 0 files merged, 4 files removed, 0 files unresolved
  $ echo l > l
  $ hg ci -Aqm "added l"
  $ hg pick -r 1b24879c5c3c
  picking 1:1b24879c5c3c "added a"
  2 new orphan changesets

  $ hg up bde1d2b6b5e5
  0 files updated, 0 files merged, 2 files removed, 0 files unresolved
  $ echo c > c
  $ hg ci -Aqm "added c"
  $ hg up .^
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo d > d
  $ hg ci -Aqm "added d"

  $ hg glog
  @  8:5841d7cf9893 added d
  |   () draft
  | o  7:62fb70414f99 added c
  |/    () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---o  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg prune -r 9402371b436e --succ 5841d7cf9893 --succ 62fb70414f99 --split
  1 changesets pruned

  $ hg glog
  @  8:5841d7cf9893 added d
  |   () draft
  | o  7:62fb70414f99 added c
  |/    () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  | *    4:b9b387427a53 merge commit
  | |\    () draft
  +---x  3:9402371b436e added c and d
  | |     () draft
  | *  2:a1da0651488c added b
  | |   () draft
  | x  1:1b24879c5c3c added a
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft

  $ hg evolve --any --all --dry-run
  move:[2] added b
  atop:[6] added a
  hg rebase -r a1da0651488c -d 5568b87b1491
  could not solve instability, ambiguous destination: parent split across two branches

  $ hg evolve --any --all --config ui.interactive=True <<EOF
  > 2
  > EOF
  move:[2] added b
  atop:[6] added a
  ancestor 'b9b387427a53' split over multiple topological branches.
  choose an evolve destination:
  1: [62fb70414f99] added c
  2: [5841d7cf9893] added d
  q: quit the prompt
  enter the index of the revision you want to select: 2
  move:[4] merge commit
  atop:[8] added d
  move:[10] merge commit
  atop:[9] added b

  $ hg glog
  o    11:578c938ebd2e merge commit
  |\    () draft
  | o  9:da76bb7cd904 added b
  | |   () draft
  @ |  8:5841d7cf9893 added d
  | |   () draft
  +---o  7:62fb70414f99 added c
  | |     () draft
  | o  6:5568b87b1491 added a
  | |   () draft
  | o  5:0a6281e212fe added l
  |/    () draft
  o  0:bde1d2b6b5e5 added base
      () draft