notmuch search: Change default search order to be newest messages first.

This is what most people want for a _search_ command. It's often
different for actually reading mail in an inbox, (where it makes more
sense to have results displayed in chronological order), but in such a
case, ther user is likely using an interface that can simply pass the
--sort=oldest-first option to "notmuch search".

Here we're also change the sort enum from NOTMUCH_SORT_DATE and
NOTMUCH_SORT_DATE_REVERSE to NOTMUCH_SORT_OLDEST_FIRST and
NOTMUCH_SORT_NEWEST_FIRST. Similarly we replace the --reverse option
to "notmuch search" with two options: --sort=oldest-first and
--sort=newest-first.

Finally, these changes are all tracked in the emacs interface, (which
has no change in its behavior).

1 files changed, 2 insertions, 2 deletions

diff --git a/lib/notmuch.h b/lib/notmuch.h
index 32b5332..f135fd3 100644
--- a/lib/notmuch.h
+++ b/lib/notmuch.h
@@ -299,8 +299,8 @@ notmuch_query_create (notmuch_database_t *database,
 
 /* Sort values for notmuch_query_set_sort */
 typedef enum {
-    NOTMUCH_SORT_DATE,
-    NOTMUCH_SORT_DATE_REVERSE,
+    NOTMUCH_SORT_OLDEST_FIRST,
+    NOTMUCH_SORT_NEWEST_FIRST,
     NOTMUCH_SORT_MESSAGE_ID
 } notmuch_sort_t;