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#include "cache.h"
#include "refs.h"
#include "tag.h"
#include "commit.h"
#include "blob.h"
#include "diff.h"
#include "revision.h"
#include "reachable.h"
#include "cache-tree.h"
#include "progress.h"
#include "list-objects.h"
#include "packfile.h"
#include "worktree.h"
#include "object-store.h"
#include "pack-bitmap.h"
#include "pack-mtimes.h"
struct connectivity_progress {
struct progress *progress;
unsigned long count;
static void update_progress(struct connectivity_progress *cp)
if ((cp->count & 1023) == 0)
display_progress(cp->progress, cp->count);
static int add_one_ref(const char *path, const struct object_id *oid,
int flag, void *cb_data)
struct rev_info *revs = (struct rev_info *)cb_data;
struct object *object;
if ((flag & REF_ISSYMREF) && (flag & REF_ISBROKEN)) {
warning("symbolic ref is dangling: %s", path);
return 0;
object = parse_object_or_die(oid, path);
add_pending_object(revs, object, "");
return 0;
* The traversal will have already marked us as SEEN, so we
* only need to handle any progress reporting here.
static void mark_object(struct object *obj, const char *name, void *data)
static void mark_commit(struct commit *c, void *data)
mark_object(&c->object, NULL, data);
struct recent_data {
struct rev_info *revs;
timestamp_t timestamp;
report_recent_object_fn *cb;
int ignore_in_core_kept_packs;
static void add_recent_object(const struct object_id *oid,
struct packed_git *pack,
off_t offset,
timestamp_t mtime,
struct recent_data *data)
struct object *obj;
enum object_type type;
if (mtime <= data->timestamp)
* We do not want to call parse_object here, because
* inflating blobs and trees could be very expensive.
* However, we do need to know the correct type for
* later processing, and the revision machinery expects
* commits and tags to have been parsed.
type = oid_object_info(the_repository, oid, NULL);
if (type < 0)
die("unable to get object info for %s", oid_to_hex(oid));
switch (type) {
case OBJ_TAG:
obj = parse_object_or_die(oid, NULL);
case OBJ_TREE:
obj = (struct object *)lookup_tree(the_repository, oid);
case OBJ_BLOB:
obj = (struct object *)lookup_blob(the_repository, oid);
die("unknown object type for %s: %s",
oid_to_hex(oid), type_name(type));
if (!obj)
die("unable to lookup %s", oid_to_hex(oid));
add_pending_object(data->revs, obj, "");
if (data->cb)
data->cb(obj, pack, offset, mtime);
static int want_recent_object(struct recent_data *data,
const struct object_id *oid)
if (data->ignore_in_core_kept_packs &&
has_object_kept_pack(oid, IN_CORE_KEEP_PACKS))
return 0;
return 1;
static int add_recent_loose(const struct object_id *oid,
const char *path, void *data)
struct stat st;
struct object *obj;
if (!want_recent_object(data, oid))
return 0;
obj = lookup_object(the_repository, oid);
if (obj && obj->flags & SEEN)
return 0;
if (stat(path, &st) < 0) {
* It's OK if an object went away during our iteration; this
* could be due to a simultaneous repack. But anything else
* we should abort, since we might then fail to mark objects
* which should not be pruned.
if (errno == ENOENT)
return 0;
return error_errno("unable to stat %s", oid_to_hex(oid));
add_recent_object(oid, NULL, 0, st.st_mtime, data);
return 0;
static int add_recent_packed(const struct object_id *oid,
struct packed_git *p, uint32_t pos,
void *data)
struct object *obj;
timestamp_t mtime = p->mtime;
if (!want_recent_object(data, oid))
return 0;
obj = lookup_object(the_repository, oid);
if (obj && obj->flags & SEEN)
return 0;
if (p->is_cruft) {
if (load_pack_mtimes(p) < 0)
die(_("could not load cruft pack .mtimes"));
mtime = nth_packed_mtime(p, pos);
add_recent_object(oid, p, nth_packed_object_offset(p, pos), mtime, data);
return 0;
int add_unseen_recent_objects_to_traversal(struct rev_info *revs,
timestamp_t timestamp,
report_recent_object_fn *cb,
int ignore_in_core_kept_packs)
struct recent_data data;
enum for_each_object_flags flags;
int r;
data.revs = revs;
data.timestamp = timestamp;
data.cb = cb;
data.ignore_in_core_kept_packs = ignore_in_core_kept_packs;
r = for_each_loose_object(add_recent_loose, &data,
if (r)
return r;
if (ignore_in_core_kept_packs)
return for_each_packed_object(add_recent_packed, &data, flags);
static int mark_object_seen(const struct object_id *oid,
enum object_type type,
int exclude,
uint32_t name_hash,
struct packed_git *found_pack,
off_t found_offset)
struct object *obj = lookup_object_by_type(the_repository, oid, type);
if (!obj)
die("unable to create object '%s'", oid_to_hex(oid));
obj->flags |= SEEN;
return 0;
void mark_reachable_objects(struct rev_info *revs, int mark_reflog,
timestamp_t mark_recent, struct progress *progress)
struct connectivity_progress cp;
struct bitmap_index *bitmap_git;
* Set up revision parsing, and mark us as being interested
* in all object types, not just commits.
revs->tag_objects = 1;
revs->blob_objects = 1;
revs->tree_objects = 1;
/* Add all refs from the index file */
add_index_objects_to_pending(revs, 0);
/* Add all external refs */
for_each_ref(add_one_ref, revs);
/* detached HEAD is not included in the list above */
head_ref(add_one_ref, revs);
other_head_refs(add_one_ref, revs);
/* Add all reflog info */
if (mark_reflog)
add_reflogs_to_pending(revs, 0);
cp.progress = progress;
cp.count = 0;
bitmap_git = prepare_bitmap_walk(revs, 0);
if (bitmap_git) {
traverse_bitmap_commit_list(bitmap_git, revs, mark_object_seen);
} else {
if (prepare_revision_walk(revs))
die("revision walk setup failed");
traverse_commit_list(revs, mark_commit, mark_object, &cp);
if (mark_recent) {
revs->ignore_missing_links = 1;
if (add_unseen_recent_objects_to_traversal(revs, mark_recent,
NULL, 0))
die("unable to mark recent objects");
if (prepare_revision_walk(revs))
die("revision walk setup failed");
traverse_commit_list(revs, mark_commit, mark_object, &cp);
display_progress(cp.progress, cp.count);