From: David Bremner <david@tethera.net>
To: notmuch@notmuchmail.org
Subject: [PATCH 15/15] lib: change parent strategy to use In-Reply-To if it looks sane
Date: Thu, 30 Aug 2018 08:29:15 -0300 [thread overview]
Message-ID: <20180830112915.11761-16-david@tethera.net> (raw)
In-Reply-To: <20180830112915.11761-1-david@tethera.net>
As reported by Sean Whitton, there are mailers (in particular the
Debian Bug Tracking System) that have sensible In-Reply-To headers,
but un-useful-for-notmuch References (in particular with the BTS, the
oldest reference is last). I looked at a sample of about 200K
messages, and only about 0.5% these had something other than a single
message-id in In-Reply-To. On this basis, if we see a single
message-id in In-Reply-To, consider that as authoritative.
---
lib/add-message.cc | 20 +++++++++++++++-----
test/T510-thread-replies.sh | 1 -
2 files changed, 15 insertions(+), 6 deletions(-)
diff --git a/lib/add-message.cc b/lib/add-message.cc
index f5fac8be..da37032c 100644
--- a/lib/add-message.cc
+++ b/lib/add-message.cc
@@ -227,7 +227,7 @@ _notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
const char **thread_id)
{
GHashTable *parents = NULL;
- const char *refs, *in_reply_to, *in_reply_to_message_id;
+ const char *refs, *in_reply_to, *in_reply_to_message_id, *strict_message_id = NULL;
const char *last_ref_message_id, *this_message_id;
GList *l, *keys = NULL;
notmuch_status_t ret = NOTMUCH_STATUS_SUCCESS;
@@ -242,14 +242,24 @@ _notmuch_database_link_message_to_parents (notmuch_database_t *notmuch,
parents, refs);
in_reply_to = _notmuch_message_file_get_header (message_file, "in-reply-to");
+ if (in_reply_to)
+ strict_message_id = _notmuch_message_id_parse_strict (message,
+ in_reply_to);
+
in_reply_to_message_id = parse_references (message,
this_message_id,
parents, in_reply_to);
- /* For the parent of this message, use the last message ID of the
- * References header, if available. If not, fall back to the
- * first message ID in the In-Reply-To header. */
- if (last_ref_message_id) {
+ /* For the parent of this message, use
+ * 1) the In-Reply-To header, if it looks sane, otherwise
+ * 2) the last message ID of the References header, if available.
+ * 3) Otherwise, fall back to the first message ID in
+ * the In-Reply-To header.
+ */
+
+ if (strict_message_id) {
+ _notmuch_message_add_term (message, "replyto", strict_message_id);
+ } else if (last_ref_message_id) {
_notmuch_message_add_term (message, "replyto",
last_ref_message_id);
} else if (in_reply_to_message_id) {
diff --git a/test/T510-thread-replies.sh b/test/T510-thread-replies.sh
index 87dae2df..4688c0ab 100755
--- a/test/T510-thread-replies.sh
+++ b/test/T510-thread-replies.sh
@@ -210,7 +210,6 @@ EOF
test_expect_equal_file EXPECTED OUTPUT
test_begin_subtest "trusting reply-to (tree view)"
-test_subtest_known_broken
test_emacs '(notmuch-tree "id:B00-root@example.org")
(notmuch-test-wait)
(test-output)
--
2.18.0
next prev parent reply other threads:[~2018-08-30 11:30 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-08-30 11:29 threading replies fixes v3 David Bremner
2018-08-30 11:29 ` [PATCH 01/15] util: add DEBUG_PRINTF, rename error_util.h -> debug_print.h David Bremner
2018-09-01 17:06 ` Tomi Ollila
2018-09-03 11:54 ` David Bremner
2018-08-30 11:29 ` [PATCH 02/15] test: start threading test corpus David Bremner
2018-08-30 11:29 ` [PATCH 03/15] test: add known broken tests for "ghost roots" David Bremner
2018-08-30 11:29 ` [PATCH 04/15] lib/thread: sort sibling messages by date David Bremner
2018-09-01 17:11 ` Tomi Ollila
2018-09-03 15:18 ` David Bremner
2018-08-30 11:29 ` [PATCH 05/15] lib: read reference terms into message struct David Bremner
2018-08-30 11:29 ` [PATCH 06/15] lib/thread: refactor in_reply_to test David Bremner
2018-09-01 20:02 ` Tomi Ollila
2018-08-30 11:29 ` [PATCH 07/15] lib/thread: initial use of references as for fallback parenting David Bremner
2018-08-30 11:29 ` [PATCH 08/15] lib: calculate message depth in thread David Bremner
2018-08-30 11:29 ` [PATCH 09/15] lib/thread: rewrite _parent_or_toplevel to use depths David Bremner
2018-08-30 11:29 ` [PATCH 10/15] lib/thread: change _resolve_thread_relationships " David Bremner
2018-08-30 11:29 ` [PATCH 11/15] test: add known broken test for good In-Reply-To / bad References David Bremner
2018-08-30 11:29 ` [PATCH 12/15] test/thread-replies: mangle In-Reply-To's David Bremner
2018-08-30 11:29 ` [PATCH 13/15] util/string-util: export skip_space David Bremner
2018-08-30 11:29 ` [PATCH 14/15] lib: add _notmuch_message_id_parse_strict David Bremner
2018-09-01 20:27 ` Tomi Ollila
2018-08-30 11:29 ` David Bremner [this message]
2018-09-01 20:29 ` [PATCH 15/15] lib: change parent strategy to use In-Reply-To if it looks sane Tomi Ollila
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