view tests/test-dirstate-backup.t @ 38015:3ac950cd5978

shortest: move revnum-disambiguation out of revlog

I want to be able to change how we disambiguate and I think having
revlog.shortest() worry only about finding a prefix that's unambiguous
among nodeids makes more sense.

This slows down `hg log -T '{shortest(node,1)}\n'` from 4.0s to 4.1s.

Differential Revision: https://phab.mercurial-scm.org/D3502

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