Call prune-packed from "git prune" as well.

Add -n (dryrun) flag to git-prune-packed, and call it from "git prune".

Signed-off-by: Junio C Hamano <junkio@cox.net>

git-prune-script

@@ -3,10 +3,11 @@
 . git-sh-setup-script || die "Not a git archive"
 
 dryrun=
+echo=
 while case "$#" in 0) break ;; esac
 do
     case "$1" in
-    -n) dryrun=echo ;;
+    -n) dryrun=-n echo=echo ;;
     --) break ;;
     -*) echo >&2 "usage: git-prune-script [ -n ] [ heads... ]"; exit 1 ;;
     *)  break ;;
@@ -20,6 +21,7 @@ sed -ne '/unreachable /{
     s|\(..\)|\1/|p
 }' | {
 	cd "$GIT_OBJECT_DIRECTORY" || exit
-	xargs $dryrun rm -f
+	xargs $echo rm -f
 }
 
+git-prune-packed $dryrun

prune-packed.c

@@ -1,6 +1,9 @@
 #include "cache.h"
 
-static const char prune_packed_usage[] = "git-prune-packed (no arguments)";
+static const char prune_packed_usage[] =
+"git-prune-packed [-n]";
+
+static int dryrun;
 
 static void prune_dir(int i, DIR *dir, char *pathname, int len)
 {
@@ -18,7 +21,9 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len)
 		if (!has_sha1_pack(sha1))
 			continue;
 		memcpy(pathname + len, de->d_name, 38);
-		if (unlink(pathname) < 0)
+		if (dryrun)
+			printf("rm -f %s\n", pathname);
+		else if (unlink(pathname) < 0)
 			error("unable to unlink %s", pathname);
 	}
 }
@@ -55,8 +60,11 @@ int main(int argc, char **argv)
 		const char *arg = argv[i];
 
 		if (*arg == '-') {
-			/* Handle flags here .. */
-			usage(prune_packed_usage);
+			if (!strcmp(arg, "-n"))
+				dryrun = 1;
+			else
+				usage(prune_packed_usage);
+			continue;
 		}
 		/* Handle arguments here .. */
 		usage(prune_packed_usage);