view tests/test-resolve.t @ 22284:72b378658cff

largefiles: restore standins from non branch-tip parent at rollback correctly

Before this patch, "hg rollback" can't restore standins correclty, if:

  - old parent of the working directory is rollback-ed, and
  - new parent of the working directory is not branch-tip

"overriderollback" uses "merge.update" as a kind of "revert" utility
to restore only standins with "node=None", and this makes
"merge.update" choose "branch-tip" revision as the updating target
unexpectedly.

Then, "merge.update" restores standins from the branch-tip revision
regardless of the parent of the working directory after rollback and
this may cause unexpected behavior.

This patch invokes "merge.update" with "node='.'" to restore standins
from the parent revision of the working directory.

In fact, this "merge.update" invocation will be replaced in the
subsequent patch to fix another problem, but this change is usefull to
inform reason why such complicated case should be tested.

test that a commit clears the merge state.

  $ hg init repo
  $ cd repo

  $ echo foo > file
  $ hg commit -Am 'add file'
  adding file

  $ echo bar >> file
  $ hg commit -Am 'append bar'


create a second head

  $ hg up -C 0
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ echo baz >> file
  $ hg commit -Am 'append baz'
  created new head

failing merge

  $ hg merge --tool=internal:fail
  0 files updated, 0 files merged, 0 files removed, 1 files unresolved
  use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
  [1]

resolve -l should contain an unresolved entry

  $ hg resolve -l
  U file

resolving an unknown path emits a warning
  $ hg resolve -m does-not-exist
  arguments do not match paths that need resolving

resolve the failure

  $ echo resolved > file
  $ hg resolve -m file
  (no more unresolved files)
  $ hg commit -m 'resolved'

resolve -l should be empty

  $ hg resolve -l

resolve -m should abort since no merge in progress
  $ hg resolve -m
  abort: resolve command not applicable when not merging
  [255]

test crashed merge with empty mergestate

  $ mkdir .hg/merge
  $ touch .hg/merge/state

resolve -l, should be empty

  $ hg resolve -l

  $ cd ..