struct object *parse_object(const struct object_id *oid)
{
unsigned long size;
enum object_type type;
int eaten;
const struct object_id *repl = lookup_replace_object(the_repository, oid);
void *buffer;
struct object *obj;
obj = lookup_object(oid->hash);
if (obj && obj->parsed)
return obj;
if ((obj && obj->type == OBJ_BLOB && has_object_file(oid)) ||
(!obj && has_object_file(oid) &&
oid_object_info(the_repository, oid, NULL) == OBJ_BLOB)) {
if (check_object_signature(repl, NULL, 0, NULL) < 0) {
error("sha1 mismatch %s", oid_to_hex(oid));
return NULL;
}
parse_blob_buffer(lookup_blob(oid), NULL, 0);
return lookup_object(oid->hash);
}
buffer = read_object_file(oid, &type, &size);
if (buffer) {
if (check_object_signature(repl, buffer, size, type_name(type)) < 0) {
free(buffer);
error("sha1 mismatch %s", oid_to_hex(repl));
return NULL;
}
obj = parse_object_buffer(oid, type, size, buffer, &eaten);
if (!eaten)
free(buffer);
return obj;
}
return NULL;
}
/*
* We refuse to tag something we can't verify. Just because.
*/
static int verify_object(const struct object_id *oid, const char *expected_type)
{
int ret = -1;
enum object_type type;
unsigned long size;
void *buffer = read_object_file(oid, &type, &size);
const struct object_id *repl = lookup_replace_object(the_repository, oid);
if (buffer) {
if (type == type_from_string(expected_type))
ret = check_object_signature(repl, buffer, size, expected_type);
free(buffer);
}
return ret;
}
static void export_blob(const struct object_id *oid)
{
unsigned long size;
enum object_type type;
char *buf;
struct object *object;
int eaten;
if (no_data)
return;
if (is_null_oid(oid))
return;
object = lookup_object(oid->hash);
if (object && object->flags & SHOWN)
return;
if (anonymize) {
buf = anonymize_blob(&size);
object = (struct object *)lookup_blob(oid);
eaten = 0;
} else {
buf = read_object_file(oid, &type, &size);
if (!buf)
die ("Could not read blob %s", oid_to_hex(oid));
if (check_object_signature(oid, buf, size, type_name(type)) < 0)
die("sha1 mismatch in blob %s", oid_to_hex(oid));
object = parse_object_buffer(oid, type, size, buf, &eaten);
}
if (!object)
die("Could not read blob %s", oid_to_hex(oid));
mark_next_object(object);
printf("blob\nmark :%"PRIu32"\ndata %lu\n", last_idnum, size);
if (size && fwrite(buf, size, 1, stdout) != 1)
die_errno ("Could not write blob '%s'", oid_to_hex(oid));
printf("\n");
show_progress();
object->flags |= SHOWN;
if (!eaten)
free(buf);
}
