view tests/test-dirstate-backup.t @ 42124:d6437f414437

branch: return early if we find an open named branch apart from default

The current code builds a list of all the open named branches except default and
then bool that. This is mostly fine until you get a repo which has thousands of
named branches.

Differential Revision: https://phab.mercurial-scm.org/D6211

Set up

  $ hg init repo
  $ cd repo

Try to import an empty patch

  $ hg import --no-commit - <<EOF
  > EOF
  applying patch from stdin
  abort: stdin: no diffs found
  [255]

No dirstate backups are left behind

  $ ls .hg/dirstate* | sort
  .hg/dirstate