[PATCH] Implementations of parsing functions

[git.git] / blob.c

diff --git a/blob.c b/blob.c
new file mode 100644 (file)
index 0000000..35031af
--- /dev/null
+++ b/blob.c
@@ -0,0 +1,24 @@
+#include "blob.h"
+#include "cache.h"
+#include <stdlib.h>
+
+const char *blob_type = "blob";
+
+struct blob *lookup_blob(unsigned char *sha1)
+{
+       struct object *obj = lookup_object(sha1);
+       if (!obj) {
+               struct blob *ret = malloc(sizeof(struct blob));
+               memset(ret, 0, sizeof(struct blob));
+               created_object(sha1, &ret->object);
+               ret->object.type = blob_type;
+               ret->object.parsed = 1;
+               return ret;
+       }
+       if (obj->parsed && obj->type != blob_type) {
+               error("Object %s is a %s, not a blob", 
+                     sha1_to_hex(sha1), obj->type);
+               return NULL;
+       }
+       return (struct blob *) obj;
+}