[PATCH v4 0/2] Honor .gitattributes with rebase --am

This series makes rebase --am honor the .gitattributes file for subsequent patches when a patch changes it.

Changes from v3:
* Check for both addition and removal of .gitattributes files.
* Switch from "test_config" to "git config".

Changes from v2:
* Rename has_path_suffix to ends_with_path_components.

Changes from v1:
* Add has_path_suffix in a separate commit.

brian m. carlson (2):
  path: add a function to check for path suffix
  apply: reload .gitattributes after patching it

 apply.c           |  7 +++++++
 convert.c         |  9 ++++++++-
 convert.h         |  6 ++++++
 path.c            | 39 ++++++++++++++++++++++++++++++---------
 path.h            |  3 +++
 t/t3400-rebase.sh | 36 ++++++++++++++++++++++++++++++++++++
 6 files changed, 90 insertions(+), 10 deletions(-)

Range-diff against v3:
1:  5f4402b38d ! 1:  fa825e4b40 apply: reload .gitattributes after patching it
    @@ apply.c: static int apply_patch(struct apply_state *state,
      			*listp = patch;
      			listp = &patch->next;
     +
    -+			if (!flush_attributes && patch->new_name &&
    -+			    ends_with_path_components(patch->new_name, GITATTRIBUTES_FILE))
    ++			if ((patch->new_name && ends_with_path_components(patch->new_name, GITATTRIBUTES_FILE)) ||
    ++			    (patch->old_name && ends_with_path_components(patch->old_name, GITATTRIBUTES_FILE)))
     +				flush_attributes = 1;
      		}
      		else {
    @@ t/t3400-rebase.sh: test_expect_success 'rebase --am and --show-current-patch' '
     +	(
     +		cd attributes &&
     +		test_commit init &&
    -+		test_config filter.test.clean "sed -e '\''s/smudged/clean/g'\''" &&
    -+		test_config filter.test.smudge "sed -e '\''s/clean/smudged/g'\''" &&
    ++		git config filter.test.clean "sed -e '\''s/smudged/clean/g'\''" &&
    ++		git config filter.test.smudge "sed -e '\''s/clean/smudged/g'\''" &&
     +
     +		test_commit second &&
     +		git checkout -b test HEAD^ &&
    @@ t/t3400-rebase.sh: test_expect_success 'rebase --am and --show-current-patch' '
     +		echo "This text is smudged." >a.txt &&
     +		git add a.txt &&
     +		test_commit fourth &&
    ++
    ++		git checkout -b removal HEAD^ &&
    ++		git rm .gitattributes &&
    ++		git add -u &&
    ++		test_commit fifth &&
    ++		git cherry-pick test &&
    ++
    ++		git checkout test &&
     +		git rebase master &&
    -+		grep "smudged" a.txt
    ++		grep "smudged" a.txt &&
    ++
    ++		git checkout removal &&
    ++		git reset --hard &&
    ++		git rebase master &&
    ++		grep "clean" a.txt
     +	)
     +'
     +