Make git-prune-packed a bit more chatty.

Steven Grimm noticed that git-repack's verbosity is inconsistent
because pack-objects is chatty and prune-packed is not.  This
makes the latter a bit more chatty and gives -q option to
squelch it.

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

Documentation/git-prune-packed.txt

@@ -9,7 +9,7 @@ residing in a pack file.
 
 SYNOPSIS
 --------
-'git-prune-packed' [-n]
+'git-prune-packed' [-n] [-q]
 
 
 DESCRIPTION
@@ -32,6 +32,9 @@ OPTIONS
         Don't actually remove any objects, only show those that would have been
         removed.
 
+-q::
+	Squelch the progress indicator.
+
 Author
 ------
 Written by Linus Torvalds <torvalds@osdl.org>

builtin-prune-packed.c

@@ -4,7 +4,10 @@
 static const char prune_packed_usage[] =
 "git-prune-packed [-n]";
 
-static void prune_dir(int i, DIR *dir, char *pathname, int len, int dryrun)
+#define DRY_RUN 01
+#define VERBOSE 02
+
+static void prune_dir(int i, DIR *dir, char *pathname, int len, int opts)
 {
 	struct dirent *de;
 	char hex[40];
@@ -20,7 +23,7 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int dryrun)
 		if (!has_sha1_pack(sha1, NULL))
 			continue;
 		memcpy(pathname + len, de->d_name, 38);
-		if (dryrun)
+		if (opts & DRY_RUN)
 			printf("rm -f %s\n", pathname);
 		else if (unlink(pathname) < 0)
 			error("unable to unlink %s", pathname);
@@ -29,7 +32,7 @@ static void prune_dir(int i, DIR *dir, char *pathname, int len, int dryrun)
 	rmdir(pathname);
 }
 
-void prune_packed_objects(int dryrun)
+void prune_packed_objects(int opts)
 {
 	int i;
 	static char pathname[PATH_MAX];
@@ -46,24 +49,31 @@ void prune_packed_objects(int dryrun)
 
 		sprintf(pathname + len, "%02x/", i);
 		d = opendir(pathname);
+		if (opts == VERBOSE && (d || i == 255))
+			fprintf(stderr, "Removing unused objects %d%%...\015",
+				((i+1) * 100) / 256);
 		if (!d)
 			continue;
-		prune_dir(i, d, pathname, len + 3, dryrun);
+		prune_dir(i, d, pathname, len + 3, opts);
 		closedir(d);
 	}
+	if (opts == VERBOSE)
+		fprintf(stderr, "\nDone.\n");
 }
 
 int cmd_prune_packed(int argc, const char **argv, const char *prefix)
 {
 	int i;
-	int dryrun = 0;
+	int opts = VERBOSE;
 
 	for (i = 1; i < argc; i++) {
 		const char *arg = argv[i];
 
 		if (*arg == '-') {
 			if (!strcmp(arg, "-n"))
-				dryrun = 1;
+				opts |= DRY_RUN;
+			else if (!strcmp(arg, "-q"))
+				opts &= ~VERBOSE;
 			else
 				usage(prune_packed_usage);
 			continue;
@@ -72,6 +82,6 @@ int cmd_prune_packed(int argc, const char **argv, const char *prefix)
 		usage(prune_packed_usage);
 	}
 	sync();
-	prune_packed_objects(dryrun);
+	prune_packed_objects(opts);
 	return 0;
 }

git-repack.sh

@@ -110,7 +110,7 @@ then
 		  done
 		)
 	fi
-	git-prune-packed
+	git-prune-packed $quiet
 fi
 
 case "$no_update_info" in