[PATCH 0/2] check-attr: add support to work with revisions

Given a pathname, git-check-attr(1) will list the attributes which apply to that pathname by reading all relevant gitattributes files. Currently there is no way to specify a revision to read the gitattributes from.

This is specifically useful in bare repositories wherein the gitattributes are only present in the git working tree but not available directly on the filesystem.

This series aims to add a new flag `-r|--revisions` to git-check-attr(1) which allows us to read gitattributes from the specified revision.

Karthik Nayak (2):
  t0003: move setup for `--all` into new block
  attr: add flag `-r|--revisions` to work with revisions

 archive.c              |   2 +-
 attr.c                 | 120 ++++++++++++++++++++++++++++-------------
 attr.h                 |   7 ++-
 builtin/check-attr.c   |  25 ++++-----
 builtin/pack-objects.c |   2 +-
 convert.c              |   2 +-
 ll-merge.c             |   4 +-
 pathspec.c             |   2 +-
 t/t0003-attributes.sh  |  63 ++++++++++++++++++++--
 userdiff.c             |   2 +-
 ws.c                   |   2 +-
 11 files changed, 170 insertions(+), 61 deletions(-)