mu4e: show mu4e-personal-addresses, add check

Show the personal addresses in the main screen (allow hiding them with
mu4e-main-view-hide-addresses), as well as a check for the case where
user's user-email-address is not part of the personal addresses.

NEWS.org

@@ -7,7 +7,8 @@
 
     - There's a new subcommand ~mu init~ to initialize the mu database, which
       takes the ~--maildir~ and ~--my-address~ parameters that ~index~ used to take.
-      These parameters are persistent so ~index~ does not need them anymore.
+      These parameters are persistent so ~index~ does not need (or accept) them
+      anymore. ~mu4e~ now depends on those parameters.
 
  ~init~ only needs to be run once or when changing these parameters. That
       implies that you need to re-index after changing these parameters.
@@ -25,8 +26,9 @@
       passing ~--muhome=~/.mu~ to various ~mu~ commands, or setting ~(setq
       mu4e-mu-home "~/.mu")~ for ~mu4e~.
 
-      It is expected that the directory where the database lives survives a
+      It is expected that the directory where the database lives, survives a
-      reboot; if that is not true for the default, you can use ~--muhome~.
+      reboot; if that is not true in your case, you can use ~--muhome~ (otherwise
+      you'd have to reindex after each reboot).
 
       After upgrading, you may wish to delete the files in the old location to
       recover some diskspace.
@@ -43,6 +45,11 @@
       It is strongly recommended that you run ~mu init~ with the appropriate
       parameters to (re)initialize the Xapian database.
 
+      The main screen shows your address(es), and issues a warning if
+ ~user-email-address~ is not part of that (and refer you to ~mu init~). You can
+      avoid the addresses in the main screen and the warning by setting
+ ~mu4e-main-view-hide-addresses~ to non-nil.
+
     - In many cases, ~mu4e~ used to receive /all/ contacts after each indexing
       operation; this was slow for some users, so we have updated this to /only/
       get the contacts that have changed since the last round.

mu4e/mu4e-main.el

@@ -32,6 +32,13 @@
 
 ;;; Mode
 
+(defvar mu4e-main-buffer-hide-personal-addresses nil
+  "Whether to hid trhe personal address in the main view. This
+  can be useful to avoid the noise when there are many.
+
+  This also hides the warning if your `user-mail-address' is not
+part of the personal addresses.")
+
 (defvar mu4e-main-buffer-name " *mu4e-main*"
   "Name of the mu4e main view buffer. The default name starts
 with SPC and therefore is not visible in buffer list.")
@@ -171,7 +178,8 @@ When REFRESH is non nil refresh infos from server."
 (defun mu4e~main-redraw-buffer ()
   (with-current-buffer mu4e-main-buffer-name
     (let ((inhibit-read-only t)
-          (pos (point)))
+          (pos (point))
+          (addrs (mu4e-personal-addresses)))
       (erase-buffer)
       (insert
        "* "
@@ -213,10 +221,15 @@ When REFRESH is non nil refresh infos from server."
        (mu4e~key-val "maildir" (mu4e-root-maildir))
        (mu4e~key-val "in store"
                      (format "%d" (plist-get mu4e~server-props :doccount)) "messages")
-       ;; (mu4e~key-val "personal addresses"
+       (unless mu4e-main-buffer-hide-personal-addresses
-       ;;               (let ((addrs (mu4e-personal-addresses)))
+         (mu4e~key-val "personal addresses" (if addrs (string-join addrs ", "  ) "none"))))
-       ;;                 (if addrs(string-join addrs ", "  ) "none")))
+
-       )
+      (unless mu4e-main-buffer-hide-personal-addresses
+        (when (and addrs user-mail-address (not (member user-mail-address addrs)))
+          (mu4e-message (concat
+                         "Note: `user-mail-address' ('%s') is not part "
+                         "of mu's addresses; add it with 'mu init --my-address='")
+                        user-mail-address)))
       (mu4e-main-mode)
       (goto-char pos))))