From e0635bd003244ae8b88a885e2e5f23c9104ed164 Mon Sep 17 00:00:00 2001 From: Austin Clements Date: Mon, 25 Aug 2014 13:26:05 -0400 Subject: lib: Reorganize upgrade around document types Rather than potentially making multiple passes over the same type of data in the database, reorganize upgrade around each type of data that may be upgraded. This eliminates code duplication, will make multi-version upgrades faster, and will let us improve progress reporting. --- lib/database.cc | 72 +++++++++++++++++++++------------------------------------ 1 file changed, 26 insertions(+), 46 deletions(-) (limited to 'lib') diff --git a/lib/database.cc b/lib/database.cc index 525c9c37..6a7ce299 100644 --- a/lib/database.cc +++ b/lib/database.cc @@ -1248,11 +1248,9 @@ notmuch_database_upgrade (notmuch_database_t *notmuch, * format. */ notmuch->features = target_features; - /* Before version 1, each message document had its filename in the - * data field. Copy that into the new format by calling - * notmuch_message_add_filename. - */ - if (new_features & NOTMUCH_FEATURE_FILE_TERMS) { + /* Perform per-message upgrades. */ + if (new_features & + (NOTMUCH_FEATURE_FILE_TERMS | NOTMUCH_FEATURE_BOOL_FOLDER)) { notmuch_query_t *query = notmuch_query_create (notmuch, ""); notmuch_messages_t *messages; notmuch_message_t *message; @@ -1271,13 +1269,27 @@ notmuch_database_upgrade (notmuch_database_t *notmuch, message = notmuch_messages_get (messages); - filename = _notmuch_message_talloc_copy_data (message); - if (filename && *filename != '\0') { - _notmuch_message_add_filename (message, filename); - _notmuch_message_clear_data (message); - _notmuch_message_sync (message); + /* Before version 1, each message document had its + * filename in the data field. Copy that into the new + * format by calling notmuch_message_add_filename. + */ + if (new_features & NOTMUCH_FEATURE_FILE_TERMS) { + filename = _notmuch_message_talloc_copy_data (message); + if (filename && *filename != '\0') { + _notmuch_message_add_filename (message, filename); + _notmuch_message_clear_data (message); + } + talloc_free (filename); } - talloc_free (filename); + + /* Prior to version 2, the "folder:" prefix was + * probabilistic and stemmed. Change it to the current + * boolean prefix. Add "path:" prefixes while at it. + */ + if (new_features & NOTMUCH_FEATURE_BOOL_FOLDER) + _notmuch_message_upgrade_folder (message); + + _notmuch_message_sync (message); notmuch_message_destroy (message); @@ -1287,7 +1299,9 @@ notmuch_database_upgrade (notmuch_database_t *notmuch, notmuch_query_destroy (query); } - /* Also, before version 1 we stored directory timestamps in + /* Perform per-directory upgrades. */ + + /* Before version 1 we stored directory timestamps in * XTIMESTAMP documents instead of the current XDIRECTORY * documents. So copy those as well. */ if (new_features & NOTMUCH_FEATURE_DIRECTORY_DOCS) { @@ -1329,40 +1343,6 @@ notmuch_database_upgrade (notmuch_database_t *notmuch, } } - /* - * Prior to version 2, the "folder:" prefix was probabilistic and - * stemmed. Change it to the current boolean prefix. Add "path:" - * prefixes while at it. - */ - if (new_features & NOTMUCH_FEATURE_BOOL_FOLDER) { - notmuch_query_t *query = notmuch_query_create (notmuch, ""); - notmuch_messages_t *messages; - notmuch_message_t *message; - - count = 0; - total = notmuch_query_count_messages (query); - - for (messages = notmuch_query_search_messages (query); - notmuch_messages_valid (messages); - notmuch_messages_move_to_next (messages)) { - if (do_progress_notify) { - progress_notify (closure, (double) count / total); - do_progress_notify = 0; - } - - message = notmuch_messages_get (messages); - - _notmuch_message_upgrade_folder (message); - _notmuch_message_sync (message); - - notmuch_message_destroy (message); - - count++; - } - - notmuch_query_destroy (query); - } - db->set_metadata ("features", _print_features (local, notmuch->features)); db->set_metadata ("version", STRINGIFY (NOTMUCH_DATABASE_VERSION)); -- cgit v1.2.3