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-rw-r--r--object.c40
1 files changed, 40 insertions, 0 deletions
diff --git a/object.c b/object.c
index 91bbc6e..ca4af8f 100644
--- a/object.c
+++ b/object.c
@@ -1,5 +1,9 @@
#include "object.h"
+#include "blob.h"
+#include "tree.h"
+#include "commit.h"
#include "cache.h"
+#include "tag.h"
#include <stdlib.h>
#include <string.h>
@@ -94,3 +98,39 @@ void mark_reachable(struct object *obj, unsigned int mask)
p = p->next;
}
}
+
+struct object *parse_object(unsigned char *sha1)
+{
+ unsigned long mapsize;
+ void *map = map_sha1_file(sha1, &mapsize);
+ if (map) {
+ char type[100];
+ unsigned long size;
+ void *buffer = unpack_sha1_file(map, mapsize, type, &size);
+ if (!buffer)
+ return NULL;
+ if (check_sha1_signature(sha1, buffer, size, type) < 0)
+ printf("sha1 mismatch %s\n", sha1_to_hex(sha1));
+ munmap(map, mapsize);
+ if (!strcmp(type, "blob")) {
+ struct blob *ret = lookup_blob(sha1);
+ parse_blob(ret);
+ return &ret->object;
+ } else if (!strcmp(type, "tree")) {
+ struct tree *ret = lookup_tree(sha1);
+ parse_tree(ret);
+ return &ret->object;
+ } else if (!strcmp(type, "commit")) {
+ struct commit *ret = lookup_commit(sha1);
+ parse_commit(ret);
+ return &ret->object;
+ } else if (!strcmp(type, "tag")) {
+ struct tag *ret = lookup_tag(sha1);
+ parse_tag(ret);
+ return &ret->object;
+ } else {
+ return NULL;
+ }
+ }
+ return NULL;
+}