view tests/test-diff-issue2761.t @ 24393:77eace2a63cb

obsolete: avoid infinite loop from obs-cycle in divergence (issue4126)

As for other currently in place cycle detection, arbitrarily cut the first
obsolescence link that create a cycle avoiding the infinite loop. This will have
to be made more deterministic in the future but we do not really care right now.

Test issue2761

  $ hg init

  $ touch to-be-deleted
  $ hg add
  adding to-be-deleted
  $ hg ci -m first
  $ echo a > to-be-deleted
  $ hg ci -m second
  $ rm to-be-deleted
  $ hg diff -r 0

Same issue, different code path

  $ hg up -C
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  $ touch does-not-exist-in-1
  $ hg add
  adding does-not-exist-in-1
  $ hg ci -m third
  $ rm does-not-exist-in-1
  $ hg diff -r 1