diff format documentation: describe raw combined diff format

diff --git a/builtin-cat-file.c b/builtin-cat-file.c
index 6c16bfa1ae4ae6207a74a8caa95564c649c4b0dd..d61d3d5b74ae23bb1ab10b23f518fa7a85ac5481 100644 (file)
--- a/builtin-cat-file.c
+++ b/builtin-cat-file.c
@@ -79,7 +79,7 @@ static void pprint_tag(const unsigned char *sha1, const char *buf, unsigned long
 int cmd_cat_file(int argc, const char **argv, const char *prefix)
 {
        unsigned char sha1[20];
-       char type[20];
+       enum object_type type;
        void *buf;
        unsigned long size;
        int opt;
@@ -100,14 +100,16 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
        buf = NULL;
        switch (opt) {
        case 't':
-               if (!sha1_object_info(sha1, type, NULL)) {
-                       printf("%s\n", type);
+               type = sha1_object_info(sha1, NULL);
+               if (type > 0) {
+                       printf("%s\n", typename(type));
                        return 0;
                }
                break;
 
        case 's':
-               if (!sha1_object_info(sha1, type, &size)) {
+               type = sha1_object_info(sha1, &size);
+               if (type > 0) {
                        printf("%lu\n", size);
                        return 0;
                }
@@ -117,17 +119,18 @@ int cmd_cat_file(int argc, const char **argv, const char *prefix)
                return !has_sha1_file(sha1);
 
        case 'p':
-               if (sha1_object_info(sha1, type, NULL))
+               type = sha1_object_info(sha1, NULL);
+               if (type < 0)
                        die("Not a valid object name %s", argv[2]);
 
                /* custom pretty-print here */
-               if (!strcmp(type, tree_type))
+               if (type == OBJ_TREE)
                        return cmd_ls_tree(2, argv + 1, NULL);
 
-               buf = read_sha1_file(sha1, type, &size);
+               buf = read_sha1_file(sha1, &type, &size);
                if (!buf)
                        die("Cannot read object %s", argv[2]);
-               if (!strcmp(type, tag_type)) {
+               if (type == OBJ_TAG) {
                        pprint_tag(sha1, buf, size);
                        return 0;
                }