[PATCH] Documentation for git-clone-dumb-http.

diff --git a/object.c b/object.c
index 21f872ee163e9eeff1a52854791c5b96a2ec2ceb..72f6aa552f79edcd5f4f5c4a647ab62503365b1b 100644 (file)
--- a/object.c
+++ b/object.c
@@ -4,7 +4,6 @@
 #include "commit.h"
 #include "cache.h"
 #include "tag.h"
-#include "delta.h"
 
 struct object **objs;
 int nr_objs;
@@ -100,7 +99,9 @@ void mark_reachable(struct object *obj, unsigned int mask)
 
 struct object *lookup_object_type(const unsigned char *sha1, const char *type)
 {
-       if (!strcmp(type, blob_type)) {
+       if (!type) {
+               return lookup_unknown_object(sha1);
+       } else if (!strcmp(type, blob_type)) {
                return &lookup_blob(sha1)->object;
        } else if (!strcmp(type, tree_type)) {
                return &lookup_tree(sha1)->object;
@@ -114,27 +115,37 @@ struct object *lookup_object_type(const unsigned char *sha1, const char *type)
        }
 }
 
+union any_object {
+       struct object object;
+       struct commit commit;
+       struct tree tree;
+       struct blob blob;
+       struct tag tag;
+};
+
+struct object *lookup_unknown_object(const unsigned char *sha1)
+{
+       struct object *obj = lookup_object(sha1);
+       if (!obj) {
+               union any_object *ret = xmalloc(sizeof(*ret));
+               memset(ret, 0, sizeof(*ret));
+               created_object(sha1, &ret->object);
+               ret->object.type = NULL;
+               return &ret->object;
+       }
+       return obj;
+}
+
 struct object *parse_object(const unsigned char *sha1)
 {
-       unsigned long mapsize;
-       void *map = map_sha1_file(sha1, &mapsize);
-       if (map) {
-               int is_delta;
+       unsigned long size;
+       char type[20];
+       void *buffer = read_sha1_file(sha1, type, &size);
+       if (buffer) {
                struct object *obj;
-               char type[100];
-               unsigned long size;
-               void *buffer = unpack_sha1_file(map, mapsize, type, &size);
-               munmap(map, mapsize);
-               if (!buffer)
-                       return NULL;
-               is_delta = !strcmp(type, "delta");
-               if (!is_delta && check_sha1_signature(sha1, buffer, size, type) < 0)
+               if (check_sha1_signature(sha1, buffer, size, type) < 0)
                        printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
-               if (is_delta) {
-                       struct delta *delta = lookup_delta(sha1);
-                       parse_delta_buffer(delta, buffer, size);
-                       obj = (struct object *) delta;
-               } else if (!strcmp(type, "blob")) {
+               if (!strcmp(type, "blob")) {
                        struct blob *blob = lookup_blob(sha1);
                        parse_blob_buffer(blob, buffer, size);
                        obj = &blob->object;
@@ -162,3 +173,33 @@ struct object *parse_object(const unsigned char *sha1)
        }
        return NULL;
 }
+
+struct object_list *object_list_insert(struct object *item,
+                                      struct object_list **list_p)
+{
+       struct object_list *new_list = xmalloc(sizeof(struct object_list));
+        new_list->item = item;
+        new_list->next = *list_p;
+        *list_p = new_list;
+        return new_list;
+}
+
+unsigned object_list_length(struct object_list *list)
+{
+       unsigned ret = 0;
+       while (list) {
+               list = list->next;
+               ret++;
+       }
+       return ret;
+}
+
+int object_list_contains(struct object_list *list, struct object *obj)
+{
+       while (list) {
+               if (list->item == obj)
+                       return 1;
+               list = list->next;
+       }
+       return 0;
+}