feat: tag manipulation

src/sh/notmuch.sh

@@ -3,7 +3,8 @@
 # Print the message id of the last message within a thread.
 # @argument $1: thread id
 nm_last_message_in_thread() {
-  $NOTMUCH search --output=messages --offset=-1 thread:"$1" | sed 's/^...//'
+  # TODO: We may be smarter here that just incorporating excluded messages
+  $NOTMUCH search --output=messages --offset=-1 --exclude=false thread:"$1" | sed 's/^...//'
 }
 
 # Print the header of a message (with trailing empty line)
@@ -31,3 +32,10 @@ nm_message_part_nr() {
 nm_message_get_part() {
   $NOTMUCH show --part="$2" id:"$1"
 }
+
+# Add/remove a tag
+# @argument $1: [+/-]tag
+# @argument $2: query
+nm_tag() {
+  $NOTMUCH tag "$1" "$2"
+}