database: Store mail filename as a new 'direntry' term, not as 'data'.

Instead of storing the complete message filename in the data portion
of a mail document we now store a 'direntry' term that contains the
document ID of a directory document and also the basename of the
message filename within that directory. This will allow us to easily
store multple filenames for a single message, and will also allow us
to find mail documents for files that previously existed in a
directory but that have since been deleted.

1 files changed, 6 insertions, 1 deletions

diff --git a/lib/notmuch-private.h b/lib/notmuch-private.h
index 9f470c9f..5a930bb3 100644
--- a/lib/notmuch-private.h
+++ b/lib/notmuch-private.h
@@ -166,6 +166,11 @@ _notmuch_database_find_directory_id (notmuch_database_t *database,
 				     const char *path,
 				     unsigned int *directory_id);
 
+const char *
+_notmuch_database_get_directory_path (void *ctx,
+				      notmuch_database_t *notmuch,
+				      unsigned int doc_id);
+
 /* thread.cc */
 
 notmuch_thread_t *
@@ -205,7 +210,7 @@ _notmuch_message_gen_terms (notmuch_message_t *message,
 			    const char *prefix_name,
 			    const char *text);
 
-void
+notmuch_status_t
 _notmuch_message_set_filename (notmuch_message_t *message,
 			       const char *filename);