view tests/test-rebase-check-restore.t @ 44450:7d5455b988ec stable

discovery: avoid wrong detection of multiple branch heads (issue6256)

This fix the code using obsolescence markers to remove "to be obsoleted" heads
during the detection of new head creation from push. The code turned out to not
use the branch information at all. This lead changeset from different branch to
be detected as new head on unrelated branch.

The code fix is actually quite simple. New tests have been added to covers
these cases.

Differential Revision: https://phab.mercurial-scm.org/D8259

  $ cat >> $HGRCPATH <<EOF
  > [extensions]
  > rebase=
  > 
  > [phases]
  > publish=False
  > 
  > [alias]
  > tglog = log -G --template "{rev}:{phase} '{desc}' {branches}\n"
  > EOF


  $ hg init a
  $ cd a

  $ echo A > A
  $ hg add A
  $ hg ci -m A

  $ echo 'B' > B
  $ hg add B
  $ hg ci -m B

  $ echo C >> A
  $ hg ci -m C

  $ hg up -q -C 0

  $ echo D >> A
  $ hg ci -m D
  created new head

  $ echo E > E
  $ hg add E
  $ hg ci -m E

  $ hg up -q -C 0

  $ hg branch 'notdefault'
  marked working directory as branch notdefault
  (branches are permanent and global, did you want a bookmark?)
  $ echo F >> A
  $ hg ci -m F

  $ cd ..


Rebasing B onto E - check keep: and phases

  $ hg clone -q -u . a a1
  $ cd a1
  $ hg phase --force --secret 2

  $ hg tglog
  @  5:draft 'F' notdefault
  |
  | o  4:draft 'E'
  | |
  | o  3:draft 'D'
  |/
  | o  2:secret 'C'
  | |
  | o  1:draft 'B'
  |/
  o  0:draft 'A'
  
  $ hg rebase -s 1 -d 4 --keep
  rebasing 1:27547f69f254 "B"
  rebasing 2:965c486023db "C"
  merging A
  warning: conflicts while merging A! (edit, then use 'hg resolve --mark')
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]

Solve the conflict and go on:

  $ echo 'conflict solved' > A
  $ rm A.orig
  $ hg resolve -m A
  (no more unresolved files)
  continue: hg rebase --continue
  $ hg rebase --continue
  already rebased 1:27547f69f254 "B" as 45396c49d53b
  rebasing 2:965c486023db "C"

  $ hg tglog
  o  7:secret 'C'
  |
  o  6:draft 'B'
  |
  | @  5:draft 'F' notdefault
  | |
  o |  4:draft 'E'
  | |
  o |  3:draft 'D'
  |/
  | o  2:secret 'C'
  | |
  | o  1:draft 'B'
  |/
  o  0:draft 'A'
  
  $ cd ..


Rebase F onto E - check keepbranches:

  $ hg clone -q -u . a a2
  $ cd a2
  $ hg phase --force --secret 2

  $ hg tglog
  @  5:draft 'F' notdefault
  |
  | o  4:draft 'E'
  | |
  | o  3:draft 'D'
  |/
  | o  2:secret 'C'
  | |
  | o  1:draft 'B'
  |/
  o  0:draft 'A'
  
  $ hg rebase -s 5 -d 4 --keepbranches
  rebasing 5:01e6ebbd8272 "F" (tip)
  merging A
  warning: conflicts while merging A! (edit, then use 'hg resolve --mark')
  unresolved conflicts (see hg resolve, then hg rebase --continue)
  [1]

Solve the conflict and go on:

  $ echo 'conflict solved' > A
  $ rm A.orig
  $ hg resolve -m A
  (no more unresolved files)
  continue: hg rebase --continue
  $ hg rebase --continue
  rebasing 5:01e6ebbd8272 "F" (tip)
  saved backup bundle to $TESTTMP/a2/.hg/strip-backup/01e6ebbd8272-6fd3a015-rebase.hg

  $ hg tglog
  @  5:draft 'F' notdefault
  |
  o  4:draft 'E'
  |
  o  3:draft 'D'
  |
  | o  2:secret 'C'
  | |
  | o  1:draft 'B'
  |/
  o  0:draft 'A'
  

  $ cd ..