1 files changed, 63 insertions, 19 deletions
diff --git a/builtin-prune.c b/builtin-prune.c
index b5e768421b..25f9304b82 100644
--- a/builtin-prune.c
+++ b/builtin-prune.c
@@ -4,8 +4,12 @@
 #include "revision.h"
 #include "builtin.h"
 #include "reachable.h"
+#include "parse-options.h"
 
-static const char prune_usage[] = "git-prune [-n]";
+static const char * const prune_usage[] = {
+	"git-prune [-n] [--expire <time>] [--] [<head>...]",
+	NULL
+};
 static int show_only;
 static unsigned long expire;
 
@@ -83,37 +87,77 @@ static void prune_object_dir(const char *path)
 	}
 }
 
-int cmd_prune(int argc, const char **argv, const char *prefix)
+/*
+ * Write errors (particularly out of space) can result in
+ * failed temporary packs (and more rarely indexes and other
+ * files begining with "tmp_") accumulating in the
+ * object directory.
+ */
+static void remove_temporary_files(void)
 {
-	int i;
-	struct rev_info revs;
+	DIR *dir;
+	struct dirent *de;
+	char* dirname=get_object_directory();
 
-	for (i = 1; i < argc; i++) {
-		const char *arg = argv[i];
-		if (!strcmp(arg, "-n")) {
-			show_only = 1;
-			continue;
-		}
-		if (!strcmp(arg, "--expire")) {
-			if (++i < argc) {
-				expire = approxidate(argv[i]);
+	dir = opendir(dirname);
+	if (!dir) {
+		fprintf(stderr, "Unable to open object directory %s\n",
+			dirname);
+		return;
+	}
+	while ((de = readdir(dir)) != NULL) {
+		if (!prefixcmp(de->d_name, "tmp_")) {
+			char name[PATH_MAX];
+			int c = snprintf(name, PATH_MAX, "%s/%s",
+					 dirname, de->d_name);
+			if (c < 0 || c >= PATH_MAX)
 				continue;
+			if (expire) {
+				struct stat st;
+				if (stat(name, &st) != 0 || st.st_mtime >= expire)
+					continue;
 			}
+			printf("Removing stale temporary file %s\n", name);
+			if (!show_only)
+				unlink(name);
 		}
-		else if (!prefixcmp(arg, "--expire=")) {
-			expire = approxidate(arg + 9);
-			continue;
-		}
-		usage(prune_usage);
 	}
+	closedir(dir);
+}
+
+int cmd_prune(int argc, const char **argv, const char *prefix)
+{
+	struct rev_info revs;
+	const struct option options[] = {
+		OPT_BOOLEAN('n', NULL, &show_only,
+			    "do not remove, show only"),
+		OPT_DATE(0, "expire", &expire,
+			 "expire objects older than <time>"),
+		OPT_END()
+	};
 
 	save_commit_buffer = 0;
 	init_revisions(&revs, prefix);
-	mark_reachable_objects(&revs, 1);
 
+	argc = parse_options(argc, argv, options, prune_usage, 0);
+	while (argc--) {
+		unsigned char sha1[20];
+		const char *name = *argv++;
+
+		if (!get_sha1(name, sha1)) {
+			struct object *object = parse_object(sha1);
+			if (!object)
+				die("bad object: %s", name);
+			add_pending_object(&revs, object, "");
+		}
+		else
+			die("unrecognized argument: %s", name);
+	}
+	mark_reachable_objects(&revs, 1);
 	prune_object_dir(get_object_directory());
 
 	sync();
 	prune_packed_objects(show_only);
+	remove_temporary_files();
 	return 0;
 }