Hi Stolee
On 19/07/2022 19:33, Derrick Stolee via GitGitGadget wrote:
From: Derrick Stolee <derrickstolee@xxxxxxxxxx>
+void todo_list_filter_update_refs(struct repository *r,
+ struct todo_list *todo_list)
+{
+ int i;
+ int updated = 0;
+ struct string_list update_refs = STRING_LIST_INIT_DUP;
+
+ sequencer_get_update_refs_state(r->gitdir, &update_refs);
+
+ /*
+ * For each item in the update_refs list, if it has no updated
+ * value and does not appear in the todo_list, then remove it
+ * from the update_refs list.
+ */
+ for (i = 0; i < update_refs.nr; i++) {
+ int j;
+ int found = 0;
+ const char *ref = update_refs.items[i].string;
+ size_t reflen = strlen(ref);
+ struct update_ref_record *rec = update_refs.items[i].util;
+
+ /* OID already stored as updated. */
+ if (!is_null_oid(&rec->after))
+ continue;
+
+ for (j = 0; !found && j < todo_list->total_nr; j++) {
+ struct todo_item *item = &todo_list->items[j];
+ const char *arg = todo_list->buf.buf + item->arg_offset;
+
+ if (item->command != TODO_UPDATE_REF)
+ continue;
+
+ if (item->arg_len != reflen ||
+ strncmp(arg, ref, reflen))
+ continue;
+
+ found = 1;
+ }
+
+ if (!found) {
+ free(update_refs.items[i].string);
+ free(update_refs.items[i].util);
+
+ update_refs.nr--;
+ MOVE_ARRAY(update_refs.items + i, update_refs.items + i + 1, update_refs.nr - i);
+
+ updated = 1;
+ i--;
+ }
+ }
+
+ /*
+ * For each todo_item, check if its ref is in the update_refs list.
+ * If not, then add it as an un-updated ref.
+ */
+ for (i = 0; i < todo_list->total_nr; i++) {
+ struct todo_item *item = &todo_list->items[i];
+ const char *arg = todo_list->buf.buf + item->arg_offset;
+ int j, found = 0;
+
+ if (item->command != TODO_UPDATE_REF)
+ continue;
+
+ for (j = 0; !found && j < update_refs.nr; j++) {
+ const char *ref = update_refs.items[j].string;
+
+ found = strlen(ref) == item->arg_len &&
+ !strncmp(ref, arg, item->arg_len);
+ }
+
+ if (!found) {
+ struct string_list_item *inserted;
+ struct strbuf argref = STRBUF_INIT;
+
+ strbuf_add(&argref, arg, item->arg_len);
+ inserted = string_list_insert(&update_refs, argref.buf);
+ inserted->util = init_update_ref_record(argref.buf);
+ strbuf_release(&argref);
+ updated = 1;
+ }
+ }
+
+ if (updated)
+ write_update_refs_state(&update_refs);
We should return an error if write_update_refs_state() fails
Best Wishes
Phillip
