| #include "cache.h" |
| #include "notes-cache.h" |
| #include "object-store.h" |
| #include "repository.h" |
| #include "commit.h" |
| #include "refs.h" |
| |
| static int notes_cache_match_validity(struct repository *r, |
| const char *ref, |
| const char *validity) |
| { |
| struct object_id oid; |
| struct commit *commit; |
| struct pretty_print_context pretty_ctx; |
| struct strbuf msg = STRBUF_INIT; |
| int ret; |
| |
| if (read_ref(ref, &oid) < 0) |
| return 0; |
| |
| commit = lookup_commit_reference_gently(r, &oid, 1); |
| if (!commit) |
| return 0; |
| |
| memset(&pretty_ctx, 0, sizeof(pretty_ctx)); |
| format_commit_message(commit, "%s", &msg, &pretty_ctx); |
| strbuf_trim(&msg); |
| |
| ret = !strcmp(msg.buf, validity); |
| strbuf_release(&msg); |
| |
| return ret; |
| } |
| |
| void notes_cache_init(struct repository *r, struct notes_cache *c, |
| const char *name, const char *validity) |
| { |
| struct strbuf ref = STRBUF_INIT; |
| int flags = NOTES_INIT_WRITABLE; |
| |
| memset(c, 0, sizeof(*c)); |
| c->validity = xstrdup(validity); |
| |
| strbuf_addf(&ref, "refs/notes/%s", name); |
| if (!notes_cache_match_validity(r, ref.buf, validity)) |
| flags |= NOTES_INIT_EMPTY; |
| init_notes(&c->tree, ref.buf, combine_notes_overwrite, flags); |
| strbuf_release(&ref); |
| } |
| |
| int notes_cache_write(struct notes_cache *c) |
| { |
| struct object_id tree_oid, commit_oid; |
| |
| if (!c || !c->tree.initialized || !c->tree.update_ref || |
| !*c->tree.update_ref) |
| return -1; |
| if (!c->tree.dirty) |
| return 0; |
| |
| if (write_notes_tree(&c->tree, &tree_oid)) |
| return -1; |
| if (commit_tree(c->validity, strlen(c->validity), &tree_oid, NULL, |
| &commit_oid, NULL, NULL) < 0) |
| return -1; |
| if (update_ref("update notes cache", c->tree.update_ref, &commit_oid, |
| NULL, 0, UPDATE_REFS_QUIET_ON_ERR) < 0) |
| return -1; |
| |
| return 0; |
| } |
| |
| char *notes_cache_get(struct notes_cache *c, struct object_id *key_oid, |
| size_t *outsize) |
| { |
| const struct object_id *value_oid; |
| enum object_type type; |
| char *value; |
| unsigned long size; |
| |
| value_oid = get_note(&c->tree, key_oid); |
| if (!value_oid) |
| return NULL; |
| value = read_object_file(value_oid, &type, &size); |
| |
| *outsize = size; |
| return value; |
| } |
| |
| int notes_cache_put(struct notes_cache *c, struct object_id *key_oid, |
| const char *data, size_t size) |
| { |
| struct object_id value_oid; |
| |
| if (write_object_file(data, size, OBJ_BLOB, &value_oid) < 0) |
| return -1; |
| return add_note(&c->tree, key_oid, &value_oid, NULL); |
| } |