post-checkout hook, tests, and docs

Updated post-checkout hook to take a flag specifying whether the checkout is
a branch checkout or a file checkout (from the index).

Signed-off-by: Josh England <jjengla@sandia.gov>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/git-checkout.sh b/git-checkout.sh
index 17f43927aa..8993920673 100755
--- a/git-checkout.sh
+++ b/git-checkout.sh
@@ -137,6 +137,13 @@ Did you intend to checkout '$@' which can not be resolved as commit?"
 	git ls-files --error-unmatch -- "$@" >/dev/null || exit
 	git ls-files -- "$@" |
 	git checkout-index -f -u --stdin
+
+        # Run a post-checkout hook -- the HEAD does not change so the
+        # current HEAD is passed in for both args
+	if test -x "$GIT_DIR"/hooks/post-checkout; then
+	    "$GIT_DIR"/hooks/post-checkout $old $old 0
+	fi
+
 	exit $?
 else
 	# Make sure we did not fall back on $arg^{tree} codepath
@@ -284,3 +291,8 @@ if [ "$?" -eq 0 ]; then
 else
 	exit 1
 fi
+
+# Run a post-checkout hook
+if test -x "$GIT_DIR"/hooks/post-checkout; then
+        "$GIT_DIR"/hooks/post-checkout $old $new 1
+fi