Several commands ask the user for a tag name. With this feature the
user can just press tab and Emacs automatically retrieves the list of
all existing tags from notmuch database with 'notmuch search-tags' and
presents a completion buffer to the user.
This feature is very useful for users who have a large number of tags
because it saves typing and minimizes the risk of typos.
Signed-off-by: Jan Janak <jan@ryngle.com>
This is a new notmuch command that can be used to search for all tags
found in the database. The resulting list is alphabetically sorted.
The primary use-case for this new command is to provide the tag
completion feature in Emacs (and other interfaces).
Signed-off-by: Jan Janak <jan@ryngle.com>
This patch adds a new function called notmuch_database_get_all_tags
which can be used to obtain a list of all tags from the database
(in other words, the list contains all tags from all messages). The
function produces an alphabetically sorted list.
To add support for the new function, we rip the guts off of
notmuch_message_get_tags and put them in a new generic function
called _notmuch_convert_tags. The generic function takes a
Xapian::TermIterator as argument and uses the iterator to find tags.
This makes the function usable with different Xapian objects.
Function notmuch_message_get_tags is then reimplemented to call the
generic function with message->doc.termlist_begin() as argument.
Similarly, we implement notmuch_message_database_get_all_tags, the
function calls the generic function with db->xapian_db->allterms_begin()
as argument.
Finally, notmuch_database_get_all_tags is exported through
lib/notmuch.h
Signed-off-by: Jan Janak <jan@ryngle.com>
This fixes a small bug in notmuch_setup_command such that it returned
OK and output the setup message footer even if the config file write
step failed.
Given an existing search expression and a regular filter, the resulting
search will be:
EXISTING AND ( NEW )
With a tag filter each of the tags given will be prefixed with tag: and
separated by AND.
