view tests/test-issue619.t @ 34835:14c87708f432

arbitraryfilecontext: skip the cmp fast path if any side is a symlink

`filecmp` follows symlinks by default, which a `filectx.cmp()` call should not
be doing as it should only compare the  requested entry. After this patch, only
the contexts' data are compared, which is the correct contract.

This is a corrected version of D1122.

Differential Revision: https://phab.mercurial-scm.org/D1165

https://bz.mercurial-scm.org/619

  $ hg init
  $ echo a > a
  $ hg ci -Ama
  adding a

  $ echo b > b
  $ hg branch b
  marked working directory as branch b
  (branches are permanent and global, did you want a bookmark?)
  $ hg ci -Amb
  adding b

  $ hg co -C 0
  0 files updated, 0 files merged, 1 files removed, 0 files unresolved

Fast-forward:

  $ hg merge b
  1 files updated, 0 files merged, 0 files removed, 0 files unresolved
  (branch merge, don't forget to commit)
  $ hg ci -Ammerge

Bogus fast-forward should fail:

  $ hg merge b
  abort: merging with a working directory ancestor has no effect
  [255]

Even with strange revset (issue4465)

  $ hg merge ::.
  abort: merging with a working directory ancestor has no effect
  [255]