#include "builtin.h"
#include "cache.h"
+#include "config.h"
#include "commit.h"
#include "tree.h"
#include "blob.h"
#define REACHABLE 0x0001
#define SEEN 0x0002
#define HAS_OBJ 0x0004
+/* This flag is set if something points to this object. */
+#define USED 0x0008
static int show_root;
static int show_tags;
static int traverse_one_object(struct object *obj)
{
- int result;
- struct tree *tree = NULL;
-
- if (obj->type == OBJ_TREE) {
- tree = (struct tree *)obj;
- if (parse_tree(tree) < 0)
- return 1; /* error already displayed */
- }
- result = fsck_walk(obj, obj, &fsck_walk_options);
- if (tree)
- free_tree_buffer(tree);
- return result;
+ return fsck_walk(obj, obj, &fsck_walk_options);
}
static int traverse_reachable(void)
{
if (!obj)
return 1;
- obj->used = 1;
+ obj->flags |= USED;
return 0;
}
}
/*
- * "!used" means that nothing at all points to it, including
+ * "!USED" means that nothing at all points to it, including
* other unreachable objects. In other words, it's the "tip"
* of some set of unreachable objects, usually a commit that
* got dropped.
* deleted a branch by mistake, this is a prime candidate to
* start looking at, for example.
*/
- if (!obj->used) {
+ if (!(obj->flags & USED)) {
if (show_dangling)
printf("dangling %s %s\n", printable_type(obj),
describe_object(obj));
free(filename);
return;
}
- if (!(f = fopen(filename, "w")))
- die_errno("Could not open '%s'", filename);
+ f = xfopen(filename, "w");
if (obj->type == OBJ_BLOB) {
if (stream_blob_to_fd(fileno(f), &obj->oid, NULL, 1))
die_errno("Could not write '%s'", filename);
static int fsck_obj(struct object *obj)
{
+ int err;
+
if (obj->flags & SEEN)
return 0;
obj->flags |= SEEN;
if (fsck_walk(obj, NULL, &fsck_obj_options))
objerror(obj, "broken links");
- if (fsck_object(obj, NULL, 0, &fsck_obj_options))
- return -1;
-
- if (obj->type == OBJ_TREE) {
- struct tree *item = (struct tree *) obj;
-
- free_tree_buffer(item);
- }
+ err = fsck_object(obj, NULL, 0, &fsck_obj_options);
+ if (err)
+ goto out;
if (obj->type == OBJ_COMMIT) {
struct commit *commit = (struct commit *) obj;
- free_commit_buffer(commit);
-
if (!commit->parents && show_root)
printf("root %s\n", describe_object(&commit->object));
}
}
}
- return 0;
+ out:
+ if (obj->type == OBJ_TREE)
+ free_tree_buffer((struct tree *)obj);
+ if (obj->type == OBJ_COMMIT)
+ free_commit_buffer((struct commit *)obj);
+ return err;
}
-static int fsck_obj_buffer(const unsigned char *sha1, enum object_type type,
+static int fsck_obj_buffer(const struct object_id *oid, enum object_type type,
unsigned long size, void *buffer, int *eaten)
{
/*
* verify_packfile(), data_valid variable for details.
*/
struct object *obj;
- obj = parse_object_buffer(sha1, type, size, buffer, eaten);
+ obj = parse_object_buffer(oid, type, size, buffer, eaten);
if (!obj) {
errors_found |= ERROR_OBJECT;
- return error("%s: object corrupt or missing", sha1_to_hex(sha1));
+ return error("%s: object corrupt or missing", oid_to_hex(oid));
}
- obj->flags = HAS_OBJ;
+ obj->flags &= ~(REACHABLE | SEEN);
+ obj->flags |= HAS_OBJ;
return fsck_obj(obj);
}
static int default_refs;
-static void fsck_handle_reflog_sha1(const char *refname, unsigned char *sha1,
- unsigned long timestamp)
+static void fsck_handle_reflog_oid(const char *refname, struct object_id *oid,
+ timestamp_t timestamp)
{
struct object *obj;
- if (!is_null_sha1(sha1)) {
- obj = lookup_object(sha1);
+ if (!is_null_oid(oid)) {
+ obj = lookup_object(oid->hash);
if (obj && (obj->flags & HAS_OBJ)) {
if (timestamp && name_objects)
add_decoration(fsck_walk_options.object_names,
obj,
- xstrfmt("%s@{%ld}", refname, timestamp));
- obj->used = 1;
+ xstrfmt("%s@{%"PRItime"}", refname, timestamp));
+ obj->flags |= USED;
mark_object_reachable(obj);
} else {
- error("%s: invalid reflog entry %s", refname, sha1_to_hex(sha1));
+ error("%s: invalid reflog entry %s", refname, oid_to_hex(oid));
errors_found |= ERROR_REACHABLE;
}
}
}
-static int fsck_handle_reflog_ent(unsigned char *osha1, unsigned char *nsha1,
- const char *email, unsigned long timestamp, int tz,
+static int fsck_handle_reflog_ent(struct object_id *ooid, struct object_id *noid,
+ const char *email, timestamp_t timestamp, int tz,
const char *message, void *cb_data)
{
const char *refname = cb_data;
if (verbose)
fprintf(stderr, "Checking reflog %s->%s\n",
- sha1_to_hex(osha1), sha1_to_hex(nsha1));
+ oid_to_hex(ooid), oid_to_hex(noid));
- fsck_handle_reflog_sha1(refname, osha1, 0);
- fsck_handle_reflog_sha1(refname, nsha1, timestamp);
+ fsck_handle_reflog_oid(refname, ooid, 0);
+ fsck_handle_reflog_oid(refname, noid, timestamp);
return 0;
}
{
struct object *obj;
- obj = parse_object(oid->hash);
+ obj = parse_object(oid);
if (!obj) {
error("%s: invalid sha1 pointer %s", refname, oid_to_hex(oid));
errors_found |= ERROR_REACHABLE;
errors_found |= ERROR_REFS;
}
default_refs++;
- obj->used = 1;
+ obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(refname));
}
}
-static struct object *parse_loose_object(const unsigned char *sha1,
+static struct object *parse_loose_object(const struct object_id *oid,
const char *path)
{
struct object *obj;
unsigned long size;
int eaten;
- if (read_loose_object(path, sha1, &type, &size, &contents) < 0)
+ if (read_loose_object(path, oid->hash, &type, &size, &contents) < 0)
return NULL;
if (!contents && type != OBJ_BLOB)
die("BUG: read_loose_object streamed a non-blob");
- obj = parse_object_buffer(sha1, type, size, contents, &eaten);
+ obj = parse_object_buffer(oid, type, size, contents, &eaten);
if (!eaten)
free(contents);
return obj;
}
-static int fsck_loose(const unsigned char *sha1, const char *path, void *data)
+static int fsck_loose(const struct object_id *oid, const char *path, void *data)
{
- struct object *obj = parse_loose_object(sha1, path);
+ struct object *obj = parse_loose_object(oid, path);
if (!obj) {
errors_found |= ERROR_OBJECT;
error("%s: object corrupt or missing: %s",
- sha1_to_hex(sha1), path);
+ oid_to_hex(oid), path);
return 0; /* keep checking other objects */
}
- obj->flags = HAS_OBJ;
+ obj->flags &= ~(REACHABLE | SEEN);
+ obj->flags |= HAS_OBJ;
if (fsck_obj(obj))
errors_found |= ERROR_OBJECT;
return 0;
return 0;
}
-static int fsck_subdir(int nr, const char *path, void *progress)
+static int fsck_subdir(unsigned int nr, const char *path, void *progress)
{
display_progress(progress, nr + 1);
return 0;
fprintf(stderr, "Checking cache tree\n");
if (0 <= it->entry_count) {
- struct object *obj = parse_object(it->sha1);
+ struct object *obj = parse_object(&it->oid);
if (!obj) {
error("%s: invalid sha1 pointer in cache-tree",
- sha1_to_hex(it->sha1));
+ oid_to_hex(&it->oid));
errors_found |= ERROR_REFS;
return 1;
}
- obj->used = 1;
+ obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(":"));
return err;
}
-static void mark_object_for_connectivity(const unsigned char *sha1)
+static void mark_object_for_connectivity(const struct object_id *oid)
{
- struct object *obj = lookup_unknown_object(sha1);
+ struct object *obj = lookup_unknown_object(oid->hash);
obj->flags |= HAS_OBJ;
}
-static int mark_loose_for_connectivity(const unsigned char *sha1,
+static int mark_loose_for_connectivity(const struct object_id *oid,
const char *path,
void *data)
{
- mark_object_for_connectivity(sha1);
+ mark_object_for_connectivity(oid);
return 0;
}
-static int mark_packed_for_connectivity(const unsigned char *sha1,
+static int mark_packed_for_connectivity(const struct object_id *oid,
struct packed_git *pack,
uint32_t pos,
void *data)
{
- mark_object_for_connectivity(sha1);
+ mark_object_for_connectivity(oid);
return 0;
}
int cmd_fsck(int argc, const char **argv, const char *prefix)
{
- int i, heads;
+ int i;
struct alternate_object_database *alt;
errors_found = 0;
}
}
- heads = 0;
for (i = 0; i < argc; i++) {
const char *arg = argv[i];
- unsigned char sha1[20];
- if (!get_sha1(arg, sha1)) {
- struct object *obj = lookup_object(sha1);
+ struct object_id oid;
+ if (!get_oid(arg, &oid)) {
+ struct object *obj = lookup_object(oid.hash);
if (!obj || !(obj->flags & HAS_OBJ)) {
- error("%s: object missing", sha1_to_hex(sha1));
+ error("%s: object missing", oid_to_hex(&oid));
errors_found |= ERROR_OBJECT;
continue;
}
- obj->used = 1;
+ obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj, xstrdup(arg));
mark_object_reachable(obj);
- heads++;
continue;
}
error("invalid parameter: expected sha1, got '%s'", arg);
}
if (keep_cache_objects) {
+ verify_index_checksum = 1;
read_cache();
for (i = 0; i < active_nr; i++) {
unsigned int mode;
mode = active_cache[i]->ce_mode;
if (S_ISGITLINK(mode))
continue;
- blob = lookup_blob(active_cache[i]->oid.hash);
+ blob = lookup_blob(&active_cache[i]->oid);
if (!blob)
continue;
obj = &blob->object;
- obj->used = 1;
+ obj->flags |= USED;
if (name_objects)
add_decoration(fsck_walk_options.object_names,
obj,