* objects against.
*/
unsigned char no_try_delta;
+ unsigned char tagged; /* near the very tip of refs */
+ unsigned char filled; /* assigned write-order */
};
/*
*/
static int *object_ix;
static int object_ix_hashsz;
+static struct object_entry *locate_object_entry(const unsigned char *sha1);
/*
* stats
}
}
+/* Return 0 if we will bust the pack-size limit */
static unsigned long write_object(struct sha1file *f,
struct object_entry *entry,
off_t write_offset)
return 1;
}
+static int mark_tagged(const char *path, const unsigned char *sha1, int flag,
+ void *cb_data)
+{
+ unsigned char peeled[20];
+ struct object_entry *entry = locate_object_entry(sha1);
+
+ if (entry)
+ entry->tagged = 1;
+ if (!peel_ref(path, peeled)) {
+ entry = locate_object_entry(peeled);
+ if (entry)
+ entry->tagged = 1;
+ }
+ return 0;
+}
+
+static inline void add_to_write_order(struct object_entry **wo,
+ unsigned int *endp,
+ struct object_entry *e)
+{
+ if (e->filled)
+ return;
+ wo[(*endp)++] = e;
+ e->filled = 1;
+}
+
+static void add_descendants_to_write_order(struct object_entry **wo,
+ unsigned int *endp,
+ struct object_entry *e)
+{
+ int add_to_order = 1;
+ while (e) {
+ if (add_to_order) {
+ struct object_entry *s;
+ /* add this node... */
+ add_to_write_order(wo, endp, e);
+ /* all its siblings... */
+ for (s = e->delta_sibling; s; s = s->delta_sibling) {
+ add_to_write_order(wo, endp, s);
+ }
+ }
+ /* drop down a level to add left subtree nodes if possible */
+ if (e->delta_child) {
+ add_to_order = 1;
+ e = e->delta_child;
+ } else {
+ add_to_order = 0;
+ /* our sibling might have some children, it is next */
+ if (e->delta_sibling) {
+ e = e->delta_sibling;
+ continue;
+ }
+ /* go back to our parent node */
+ e = e->delta;
+ while (e && !e->delta_sibling) {
+ /* we're on the right side of a subtree, keep
+ * going up until we can go right again */
+ e = e->delta;
+ }
+ if (!e) {
+ /* done- we hit our original root node */
+ return;
+ }
+ /* pass it off to sibling at this level */
+ e = e->delta_sibling;
+ }
+ };
+}
+
+static void add_family_to_write_order(struct object_entry **wo,
+ unsigned int *endp,
+ struct object_entry *e)
+{
+ struct object_entry *root;
+
+ for (root = e; root->delta; root = root->delta)
+ ; /* nothing */
+ add_descendants_to_write_order(wo, endp, root);
+}
+
+static struct object_entry **compute_write_order(void)
+{
+ unsigned int i, wo_end, last_untagged;
+
+ struct object_entry **wo = xmalloc(nr_objects * sizeof(*wo));
+
+ for (i = 0; i < nr_objects; i++) {
+ objects[i].tagged = 0;
+ objects[i].filled = 0;
+ objects[i].delta_child = NULL;
+ objects[i].delta_sibling = NULL;
+ }
+
+ /*
+ * Fully connect delta_child/delta_sibling network.
+ * Make sure delta_sibling is sorted in the original
+ * recency order.
+ */
+ for (i = nr_objects; i > 0;) {
+ struct object_entry *e = &objects[--i];
+ if (!e->delta)
+ continue;
+ /* Mark me as the first child */
+ e->delta_sibling = e->delta->delta_child;
+ e->delta->delta_child = e;
+ }
+
+ /*
+ * Mark objects that are at the tip of tags.
+ */
+ for_each_tag_ref(mark_tagged, NULL);
+
+ /*
+ * Give the objects in the original recency order until
+ * we see a tagged tip.
+ */
+ for (i = wo_end = 0; i < nr_objects; i++) {
+ if (objects[i].tagged)
+ break;
+ add_to_write_order(wo, &wo_end, &objects[i]);
+ }
+ last_untagged = i;
+
+ /*
+ * Then fill all the tagged tips.
+ */
+ for (; i < nr_objects; i++) {
+ if (objects[i].tagged)
+ add_to_write_order(wo, &wo_end, &objects[i]);
+ }
+
+ /*
+ * And then all remaining commits and tags.
+ */
+ for (i = last_untagged; i < nr_objects; i++) {
+ if (objects[i].type != OBJ_COMMIT &&
+ objects[i].type != OBJ_TAG)
+ continue;
+ add_to_write_order(wo, &wo_end, &objects[i]);
+ }
+
+ /*
+ * And then all the trees.
+ */
+ for (i = last_untagged; i < nr_objects; i++) {
+ if (objects[i].type != OBJ_TREE)
+ continue;
+ add_to_write_order(wo, &wo_end, &objects[i]);
+ }
+
+ /*
+ * Finally all the rest in really tight order
+ */
+ for (i = last_untagged; i < nr_objects; i++) {
+ if (!objects[i].filled)
+ add_family_to_write_order(wo, &wo_end, &objects[i]);
+ }
+
+ if (wo_end != nr_objects)
+ die("ordered %u objects, expected %"PRIu32, wo_end, nr_objects);
+
+ return wo;
+}
+
static void write_pack_file(void)
{
uint32_t i = 0, j;
struct pack_header hdr;
uint32_t nr_remaining = nr_result;
time_t last_mtime = 0;
+ struct object_entry **write_order;
if (progress > pack_to_stdout)
progress_state = start_progress("Writing objects", nr_result);
written_list = xmalloc(nr_objects * sizeof(*written_list));
+ write_order = compute_write_order();
do {
unsigned char sha1[20];
offset = sizeof(hdr);
nr_written = 0;
for (; i < nr_objects; i++) {
- if (!write_one(f, objects + i, &offset))
+ struct object_entry *e = write_order[i];
+ if (!write_one(f, e, &offset))
break;
display_progress(progress_state, written);
}
} while (nr_remaining && i < nr_objects);
free(written_list);
+ free(write_order);
stop_progress(&progress_state);
if (written != nr_result)
die("wrote %"PRIu32" objects while expecting %"PRIu32,
struct git_attr_check check[1];
setup_delta_attr_check(check);
- if (git_checkattr(path, ARRAY_SIZE(check), check))
+ if (git_check_attr(path, ARRAY_SIZE(check), check))
return 0;
if (ATTR_FALSE(check->value))
return 1;
off_t offset = find_pack_entry_one(sha1, p);
if (offset) {
if (!found_pack) {
+ if (!is_pack_valid(p)) {
+ warning("packfile %s cannot be accessed", p->pack_name);
+ continue;
+ }
found_offset = offset;
found_pack = p;
}
commit->object.flags |= OBJECT_ADDED;
}
-static void show_object(struct object *obj, const struct name_path *path, const char *last)
+static void show_object(struct object *obj,
+ const struct name_path *path, const char *last,
+ void *data)
{
char *name = path_name(path, last);