[PATCH v3 00/23] Add --all option to git-check-attr

This re-roll differs in the following ways from v2:

* The following series of refactoring patches were inserted:

      Teach prepare_attr_stack() to figure out dirlen itself
      Extract a function collect_all_attrs()
      Remove redundant call to bootstrap_attr_stack()
      Remove redundant check

  This change, in turn, simplifies patch

      Allow querying all attributes on a file

* The new API function is named git_all_attrs() instead of
  git_allattrs().

* Additionally, git_checkattr() is renamed to git_check_attr() at the
  suggestion of Junio.

* The renaming of struct git_attr_check to git_attr_value is no longer
  part of the patch series.

Thanks to Junio for the great feedback. I believe that I have addressed all of your comments.

Michael Haggerty (23):
  doc: Add a link from gitattributes(5) to git-check-attr(1)
  doc: Correct git_attr() calls in example code
  Remove anachronism from comment
  Disallow the empty string as an attribute name
  git-check-attr: Add missing "&&"
  git-check-attr: Add tests of command-line parsing
  Provide access to the name attribute of git_attr
  git-check-attr: Use git_attr_name()
  Teach prepare_attr_stack() to figure out dirlen itself
  Extract a function collect_all_attrs()
  Remove redundant call to bootstrap_attr_stack()
  Remove redundant check
  Allow querying all attributes on a file
  git-check-attr: Extract a function output_attr()
  git-check-attr: Introduce a new variable
  git-check-attr: Extract a function error_with_usage()
  git-check-attr: Handle each error separately
  git-check-attr: Process command-line args more systematically
  git-check-attr: Error out if no pathnames are specified
  git-check-attr: Add an --all option to show all attributes
  git-check-attr: Drive two tests using the same raw data
  git-check-attr: Fix command-line handling to match docs
  Rename git_checkattr() to git_check_attr()

 Documentation/git-check-attr.txt              |   23 ++++-
 Documentation/gitattributes.txt               |    3 +
 Documentation/technical/api-gitattributes.txt |   63 +++++++++-----
 archive.c                                     |    2 +-
 attr.c                                        |   79 ++++++++++++----
 attr.h                                        |   20 ++++-
 builtin/check-attr.c                          |  121 +++++++++++++++++--------
 builtin/pack-objects.c                        |    2 +-
 convert.c                                     |    2 +-
 ll-merge.c                                    |    4 +-
 t/t0003-attributes.sh                         |   61 +++++++++----
 userdiff.c                                    |    2 +-
 ws.c                                          |    2 +-
 13 files changed, 272 insertions(+), 112 deletions(-)