emacs: Explicitly set the From address when composing a new message.

Previously, underlying emacs code was setting this header. Now, we do the
right thing and query the notmuch configuration for the default value here.

emacs/notmuch-lib.el

@@ -68,13 +68,25 @@ the user hasn't set this variable with the old or new value."
 	(match-string 2 long-string)
       "unknown")))
 
-(defun notmuch-database-path ()
-  "Return the database.path value from the notmuch configuration."
+(defun notmuch-config-get (item)
+  "Return a value from the notmuch configuration."
   ;; Trim off the trailing newline
   (substring (shell-command-to-string
-	      (concat notmuch-command " config get database.path"))
+	      (concat notmuch-command " config get " item))
 	      0 -1))
 
+(defun notmuch-database-path ()
+  "Return the database.path value from the notmuch configuration."
+  (notmuch-config-get "database.path"))
+
+(defun notmuch-user-name ()
+  "Return the user.name value from the notmuch configuration."
+  (notmuch-config-get "user.name"))
+
+(defun notmuch-user-primary-email ()
+  "Return the user.primary_email value from the notmuch configuration."
+  (notmuch-config-get "user.primary_email"))
+
 ;;
 
 ;; XXX: This should be a generic function in emacs somewhere, not

emacs/notmuch-mua.el

@@ -126,6 +126,10 @@ list."
       (when (not (string= "" user-agent))
 	(push (cons "User-Agent" user-agent) other-headers))))
 
+  (unless (assoc "From" other-headers)
+    (push (cons "From" (concat
+			(notmuch-user-name) " <" (notmuch-user-primary-email) ">")) other-headers))
+
   (message-mail to subject other-headers continue
 		switch-function yank-action send-actions)
   (message-sort-headers)

test/emacs

@@ -68,19 +68,11 @@ smtp_dummy_pid=$!
 test_emacs "(setq message-send-mail-function 'message-smtpmail-send-it) (setq smtpmail-smtp-server \"localhost\") (setq smtpmail-smtp-service \"25025\") (notmuch-hello) (notmuch-mua-mail) (message-goto-to) (insert \"user@example.com\") (message-goto-subject) (insert \"Testing message sent via SMTP\") (message-goto-body) (insert \"This is a test that messages are sent via SMTP\") (message-send-and-exit)" >/dev/null 2>&1
 wait ${smtp_dummy_pid}
 
-# XXX: Masking away the User-Agent, Date, and Message-ID makes sense,
-# since these fields are inherently unpredictable. But doing the same
-# thing with the From address is cheating. What should really be
-# happening here is that the emacs interface should be using something
-# like "notmuch compose" to construct the initial message and it
-# should be getting the user's name and email address from the notmuch
-# configuration file.
-
-output=$(sed -e 's,^From: .*,From: XXX,' \
+output=$(sed \
     -e s',^User-Agent: Notmuch/.* Emacs/.*,User-Agent: Notmuch/XXX Emacs/XXX,' \
     -e s',^Date:.*,Date: XXX,' \
     -e s',^Message-ID: <.*>$,Message-ID: <XXX>,' < sent_message)
-test_expect_equal "$output" "From: XXX
+test_expect_equal "$output" "From: Notmuch Test Suite <test_suite@notmuchmail.org>
 To: user@example.com
 Subject: Testing message sent via SMTP
 User-Agent: Notmuch/XXX Emacs/XXX