Make git-prune-packed a bit more chatty.

diff --git a/git-sh-setup.sh b/git-sh-setup.sh
index 7fdc912167ae25568ffe95132936323abbdba09e..57f7f7777602eadc79b6bb04e6652d81d14d770c 100755 (executable)
--- a/git-sh-setup.sh
+++ b/git-sh-setup.sh
@@ -36,6 +36,11 @@ is_bare_repository () {
        esac
 }
 
+require_work_tree () {
+       test $(is_bare_repository) = false ||
+       die "fatal: $0 cannot be used without a working tree."
+}
+
 if [ -z "$LONG_USAGE" ]
 then
        LONG_USAGE="Usage: $0 $USAGE"
@@ -55,7 +60,11 @@ esac
 if [ -z "$SUBDIRECTORY_OK" ]
 then
        : ${GIT_DIR=.git}
-       GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || exit
+       GIT_DIR=$(GIT_DIR="$GIT_DIR" git-rev-parse --git-dir) || {
+               exit=$?
+               echo >&2 "You need to run this command from the toplevel of the working tree."
+               exit $exit
+       }
 else
        GIT_DIR=$(git-rev-parse --git-dir) || exit
 fi