Add "git-sh-setup-script" for common git shell script setup

diff --git a/git-prune-script b/git-prune-script
index 1a97ccc91ded1522d3016d76cbdf62557585d514..97646685b70ac18210be130566b2c36395120385 100755 (executable)
--- a/git-prune-script
+++ b/git-prune-script
@@ -1,4 +1,7 @@
 #!/bin/sh
+
+. git-sh-setup-script || die "Not a git archive"
+
 dryrun=
 while case "$#" in 0) break ;; esac
 do
@@ -11,22 +14,6 @@ do
     shift;
 done
 
-: ${GIT_DIR=.git}
-: ${GIT_OBJECT_DIRECTORY="${SHA1_FILE_DIRECTORY-"$GIT_DIR/objects"}"}
-
-# Defaulting to include .git/refs/*/* may be debatable from the
-# purist POV but power users can always give explicit parameters
-# to the script anyway.
-
-case "$#" in
-0)
-    x_40='[0-9a-f][0-9a-f][0-9a-f][0-9a-f][0-9a-f]'
-    x_40="$x_40$x_40$x_40$x_40$x_40$x_40$x_40$x_40"
-    set x $(sed -ne "/^$x_40\$/p" \
-       "$GIT_DIR"/HEAD "$GIT_DIR"/refs/*/* /dev/null 2>/dev/null)
-    shift ;;
-esac
-
 git-fsck-cache --cache --unreachable "$@" |
 sed -ne '/unreachable /{
     s/unreachable [^ ][^ ]* //