Merge branch 'maint'

* maint:
  builtin-prune.c: prune temporary packs in <object_dir>/pack directory
  Do not perform cross-directory renames when creating packs

builtin-pack-objects.c

@@ -465,7 +465,7 @@ static void write_pack_file(void)
 			char tmpname[PATH_MAX];
 			int fd;
 			snprintf(tmpname, sizeof(tmpname),
-				 "%s/tmp_pack_XXXXXX", get_object_directory());
+				 "%s/pack/tmp_pack_XXXXXX", get_object_directory());
 			fd = xmkstemp(tmpname);
 			pack_tmp_name = xstrdup(tmpname);
 			f = sha1fd(fd, pack_tmp_name);

builtin-prune.c

@@ -13,7 +13,7 @@ static const char * const prune_usage[] = {
 static int show_only;
 static unsigned long expire;
 
-static int prune_tmp_object(char *path, const char *filename)
+static int prune_tmp_object(const char *path, const char *filename)
 {
 	const char *fullpath = mkpath("%s/%s", path, filename);
 	if (expire) {
@@ -110,24 +110,22 @@ static void prune_object_dir(const char *path)
 /*
  * 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.
+ * files begining with "tmp_") accumulating in the object
+ * and the pack directories.
  */
-static void remove_temporary_files(void)
+static void remove_temporary_files(const char *path)
 {
 	DIR *dir;
 	struct dirent *de;
-	char* dirname=get_object_directory();
 
-	dir = opendir(dirname);
+	dir = opendir(path);
 	if (!dir) {
-		fprintf(stderr, "Unable to open object directory %s\n",
-			dirname);
+		fprintf(stderr, "Unable to open directory %s\n", path);
 		return;
 	}
 	while ((de = readdir(dir)) != NULL)
 		if (!prefixcmp(de->d_name, "tmp_"))
-			prune_tmp_object(dirname, de->d_name);
+			prune_tmp_object(path, de->d_name);
 	closedir(dir);
 }
 
@@ -141,6 +139,7 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 			 "expire objects older than <time>"),
 		OPT_END()
 	};
+	char *s;
 
 	save_commit_buffer = 0;
 	init_revisions(&revs, prefix);
@@ -163,6 +162,9 @@ int cmd_prune(int argc, const char **argv, const char *prefix)
 	prune_object_dir(get_object_directory());
 
 	prune_packed_objects(show_only);
-	remove_temporary_files();
+	remove_temporary_files(get_object_directory());
+	s = xstrdup(mkpath("%s/pack", get_object_directory()));
+	remove_temporary_files(s);
+	free(s);
 	return 0;
 }

fast-import.c

@@ -816,7 +816,7 @@ static void start_packfile(void)
 	int pack_fd;
 
 	snprintf(tmpfile, sizeof(tmpfile),
-		"%s/tmp_pack_XXXXXX", get_object_directory());
+		"%s/pack/tmp_pack_XXXXXX", get_object_directory());
 	pack_fd = xmkstemp(tmpfile);
 	p = xcalloc(1, sizeof(*p) + strlen(tmpfile) + 2);
 	strcpy(p->pack_name, tmpfile);
@@ -878,7 +878,7 @@ static char *create_index(void)
 	}
 
 	snprintf(tmpfile, sizeof(tmpfile),
-		"%s/tmp_idx_XXXXXX", get_object_directory());
+		"%s/pack/tmp_idx_XXXXXX", get_object_directory());
 	idx_fd = xmkstemp(tmpfile);
 	f = sha1fd(idx_fd, tmpfile);
 	sha1write(f, array, 256 * sizeof(int));

index-pack.c

@@ -172,7 +172,7 @@ static char *open_pack_file(char *pack_name)
 		if (!pack_name) {
 			static char tmpfile[PATH_MAX];
 			snprintf(tmpfile, sizeof(tmpfile),
-				 "%s/tmp_pack_XXXXXX", get_object_directory());
+				 "%s/pack/tmp_pack_XXXXXX", get_object_directory());
 			output_fd = xmkstemp(tmpfile);
 			pack_name = xstrdup(tmpfile);
 		} else

pack-write.c

@@ -45,7 +45,7 @@ char *write_idx_file(char *index_name, struct pack_idx_entry **objects,
 	if (!index_name) {
 		static char tmpfile[PATH_MAX];
 		snprintf(tmpfile, sizeof(tmpfile),
-			 "%s/tmp_idx_XXXXXX", get_object_directory());
+			 "%s/pack/tmp_idx_XXXXXX", get_object_directory());
 		fd = xmkstemp(tmpfile);
 		index_name = xstrdup(tmpfile);
 	} else {