Hi Tomi, On Sun, Dec 20 2015, Tomi Ollila wrote: > devel/try-emacs-mua provides an easy way to try and experiment > with the notmuch emacs client distributed in emacs subdirectory of > the notmuch source tree. > > try-emacs-mua starts a new emacs process and if initial checks pass > *scratch* buffer is filled with information of how to begin. > > User can add normal emacs flags, like -q, -Q and e.g. -f notmuch. Any > given plain filename arguments are filtered out (with message).
Why are plain files filtered? Yesterday, when I experimented with jl-encrypt.el, I started emacs like: emacs -Q --directory ... --load notmuch.el /tmp/jl-encrypt.el This allowed me to experiment with it (edebug), modify it and restart emacs sessions easily without the need to type C-x C-f and the file name in every session. > If the emacs version in use is smaller than 24.4, special care is taken > to ensure that notmuch*.elc files older than corresponding .el files > are not loaded. Since emacs 24.4, setting `load-prefer-newer' variable > takes care of this. > --- > > Now all-elisp, vs v3: id:1447457397-11688-1-git-send-email-tomi.oll...@iki.fi > > In id:87si4bwrsu....@qmul.ac.uk Mark had some thoughts if something from this > could perhaps be used as some idea how to improve test testing. We'll have > to think more of that later. Rest of the review is pretty much irrelevant > for this (But I fixed that particular bug before turning to this ;). > > devel/try-emacs-mua | 153 > ++++++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 153 insertions(+) > create mode 100755 devel/try-emacs-mua > > diff --git a/devel/try-emacs-mua b/devel/try-emacs-mua > new file mode 100755 > index 000000000000..1f916d2806f9 > --- /dev/null > +++ b/devel/try-emacs-mua > @@ -0,0 +1,153 @@ > +#!/bin/sh > +:; set -x; exec "${EMACS:-emacs}" --debug-init --load "$0" "$@"; exit Huh! Nice trick, especially the ":;" :) > +;; > +;; Try the notmuch emacs client located in ../notmuch/emacs directory > +;; > +;; Run this without arguments; emacs window opens with some usage information > +;; > +;; Authors: Tomi Ollila <tomi.oll...@iki.fi> > +;; > +;; http://www.emacswiki.org/emacs/EmacsScripts was a useful starting point... > +;; > +;; Licence: GPLv3+ > +;; > + > +(message "Starting '%s'" load-file-name) > + > +(set-buffer "*scratch*") > + > +(setq initial-buffer-choice t) ;; *scratch* buffer > + > +(when (featurep 'notmuch) > + (insert " > +Notmuch has been loaded to this emacs (during processing of the init file) > +which means it is (most probably) loaded from different source than expected. > + > +Please run \"" (file-name-nondirectory load-file-name) > +"\" with '-q' (or '-Q') as an argument, to disable > +processing of the init file -- you can load it after emacs has started\n > +exit emacs (y or n)? ") > + (if (y-or-n-p "exit emacs") > + (kill-emacs) > + (error "Stopped reading %s" load-file-name))) > + > +(let ((pdir (file-name-directory > + (directory-file-name (file-name-directory load-file-name))))) > + (unless (file-exists-p (concat pdir "emacs/notmuch-lib.el")) > + (insert "Cannot find notmuch-emacs source directory > +while looking at: " pdir "emacs\n\nexit emacs (y or n)? ") > + (if (y-or-n-p "exit emacs") > + (kill-emacs) > + (error "Stopped reading %s" load-file-name))) > + (setq try-notmuch-source-directory (directory-file-name pdir)) > + (setq try-notmuch-emacs-directory (concat pdir "emacs/")) > + (setq load-path (cons try-notmuch-emacs-directory load-path))) > + > +;; for logging, debugging and load tracing (broke on emacs 24.5.1 :O) > +;;(defadvice file-truename (before before-file-truename activate) > +;;;; (message "file-truename: '%s' '%s' '%s'" filename counter prev-dirs)) > +;; (unless counter > +;; (message "file-truename: %s" filename))) What is the benefit of advising file-truename? Especially when you do other type of logging below. I'd prefer to have this as a comment in the file. Or is this some leftover from your experiments? > + > +;; they say advice doesn't work for primitives (functions from c source) > +;; well, these 'before' advice works for emacs 23.1 - 24.5 (at least) > +;; ...and for our purposes 24.3 is enough (there is no load-prefer-newer > there) > +;; note also that the old, "obsolete" defadvice mechanism was used, but that > +;; is the only one available for emacs 23 and 24 up to 24.3. > + > +(if (boundp 'load-prefer-newer) > + (defadvice require (before before-require activate) > + (unless (featurep feature) > + (message "require: %s" feature))) > + ;; else: special require "short-circuit"; after load feature is provided... > + ;; ... in notmuch sources we always use require and there are no loops > + (defadvice require (before before-require activate) > + (unless (featurep feature) > + (message "require: %s" feature) > + (let ((name (symbol-name feature))) > + (if (and (string-match "^notmuch" name) > + (file-newer-than-file-p > + (concat try-notmuch-emacs-directory name ".el") > + (concat try-notmuch-emacs-directory name ".elc"))) > + (load (concat try-notmuch-emacs-directory name ".el") nil nil t t) > + ))))) > + > +(insert "Found notmuch emacs client in " try-notmuch-emacs-directory "\n") > + > +(condition-case err > +;; "opportunistic" load-prefer-newer -- will be effective since emacs 24.4 > + (let ((load-prefer-newer t) > + (force-load-messages t)) > + (require 'notmuch)) > + ;; specifying `debug' here lets the debugger run > + ;; if `debug-on-error' is non-nil. > + ((debug error) > + (progn > + (insert "\nLoading notmuch failed: " (error-message-string err) "\n") > + (insert "See *Messages* buffer for more information.\n") > + (error "Stopped reading %s" load-file-name)))) > + > +(insert " > +Go to the end of the following lines and type C-x C-e to evaluate > +(or C-j which is shorter but inserts evaluation results into buffer) > + > +To \"disable\" mail sending, evaluate > +* (setq message-send-mail-function (lambda () t)) > +") > + > +(if (file-exists-p (concat try-notmuch-source-directory "/notmuch")) > + (insert " > +To use accompanied notmuch binary from the same source, evaluate > +* (setq exec-path (cons \"" try-notmuch-source-directory "\" exec-path)) > +Note: Evaluating the above may be followed by unintended database > +upgrade and getting back to old version may require dump & restore. > +")) You can also inform the user which notmuch binary will be used without the above setq. > + > +(if init-file-user ;; nil, if '-q' or '-Q' is given, but no '-u' 'USER' > + (insert " > +Your init file was processed during emacs startup. If you want to test > +notmuch emacs mail client without your emacs init file interfering, Run\n\"" > +(file-name-nondirectory load-file-name) "\" with '-q' (or '-Q') as an > argument. > +") > + (let ((init-file-name)) > + ;; determining init file name in startup.el/command-line is too > complicated > + ;; to be duplicated here; these 3 file names covers most of the users > + (mapc (lambda (fn) (if (file-exists-p fn) (setq init-file-name fn))) > + '("~/.emacs.d/init.el" "~/.emacs" "~/.emacs.el")) > + (if init-file-name > + (insert " > +If you want to load your emacs init file now, evaluate > +* (load \"" init-file-name "\") > +"))) > + (insert " > +If you want to use packages (e.g. company from elpa) evaluate > +* (progn (require 'package) (package-initialize)) > +")) > + > +(insert " > +To start notmuch (hello) screen, evaluate > +* (notmuch-hello)") > + > +(setq try-emacs-pop-messages-buffers nil) If this variable was named something like arg-ignored, the code bellow would be easier to understand. > +(add-hook 'command-line-functions > + (lambda () > + (unless try-emacs-pop-messages-buffers (message "%s" "")) > + (message "*** Ignoring arg '%s'" argi) > + (setq try-emacs-pop-messages-buffers t))) > + > +(add-hook 'emacs-startup-hook > + (lambda () > + (when try-emacs-pop-messages-buffers > + (message "%s" "") > + (message "Press 'q' to hide this window") Pressing 'q' doesn't work under Emacs 23. > + (pop-to-buffer "*Messages*")) > + (set-buffer "*scratch*") > + (lisp-interaction-mode) > + (goto-char (point-min)) > + (forward-line) > + (set-buffer-modified-p nil))) > + > +;; Local Variables: > +;; mode: emacs-lisp > +;; End: -Michal _______________________________________________ notmuch mailing list notmuch@notmuchmail.org https://notmuchmail.org/mailman/listinfo/notmuch