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authorbarkalow@iabervon.org <barkalow@iabervon.org>2005-08-02 23:45:48 (GMT)
committerJunio C Hamano <junkio@cox.net>2005-08-03 05:53:07 (GMT)
commit66e481b007e843be54b9ff6a4be6e139c103a695 (patch)
tree68afb9334b489e67e6c78ffff7f6090e7de50f7f /object.c
parent29f3b3de99a9dc08b6ef6946cafaa559a7b4f725 (diff)
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[PATCH] Object library enhancements
Add function to look up an object which is entirely unknown, so that it can be put in a list. Various other functions related to lists of objects. Signed-off-by: Daniel Barkalow <barkalow@iabervon.org> Signed-off-by: Junio C Hamano <junkio@cox.net>
Diffstat (limited to 'object.c')
-rw-r--r--object.c55
1 files changed, 54 insertions, 1 deletions
diff --git a/object.c b/object.c
index c410e97..72f6aa5 100644
--- a/object.c
+++ b/object.c
@@ -99,7 +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;
@@ -113,6 +115,27 @@ 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 size;
@@ -150,3 +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;
+}