view tests/test-merge4.t @ 39179:1c3184d7e882

dagop: extract headsetofconnecteds() from dagutil

The functionality for resolving the set of DAG heads from a
subset simply requires a function to resolve parent revisions.

Let's establish a function in the dagop module to do this, which
seems to be where generic DAG functionality goes these days.

Differential Revision: https://phab.mercurial-scm.org/D4327

  $ hg init
  $ echo This is file a1 > a
  $ hg add a
  $ hg commit -m "commit #0"
  $ echo This is file b1 > b
  $ hg add b
  $ hg commit -m "commit #1"
  $ hg update 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved
  $ echo This is file c1 > c
  $ hg add c
  $ hg commit -m "commit #2"
  created new head
  $ hg merge 1
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ rm b
  $ echo This is file c22 > c

Test hg behaves when committing with a missing file added by a merge

  $ hg commit -m "commit #3"
  abort: cannot commit merge with missing files
  [255]