[PATCH v2 0/3] Fix how for-each-ref handles broken loose references

This is a reroll of [1]. Thanks to Peff and Junio for their comments about v1.

Changes since v1:

* Use $_z40 to initialize $ZEROS in test.

* Test that "git for-each-ref --format="%(objectname) %(refname)"
  *doesn't* notice references that point at missing objects.

This patch series is also available from my GitHub account [2] as branch for-each-ref-errors.

[1] http://thread.gmane.org/gmane.comp.version-control.git/270429 [2] https://github.com/mhagger/git

Michael Haggerty (3):
  t6301: new tests of for-each-ref error handling
  for-each-ref: report broken references correctly
  read_loose_refs(): treat NULL_SHA1 loose references as broken

 builtin/for-each-ref.c         |  5 ++++
 refs.c                         |  7 ++++++
 t/t6301-for-each-ref-errors.sh | 56 ++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 68 insertions(+)
 create mode 100755 t/t6301-for-each-ref-errors.sh