org-mairix.el now on EmacsWiki

org-mairix.el now on EmacsWiki

[Georg C. F. Greve]

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Hi all,

I just put org-mairix.el up on EmacsWiki at

 http://www.emacswiki.org/emacs/org-mairix.el

and created a link from the EmacsWiki Org mode page.

Carsten: Do you think you could link to it from the Org mode home page,
as well?

Regards,
Georg

-- 
Georg C. F. Greve                                 <greve@fsfeurope.org>
Free Software Foundation Europe	                 (http://fsfeurope.org)
Join the Fellowship and protect your freedom!     (http://www.fsfe.org)
What everyone should know about DRM                   (http://DRM.info)

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Re: org-mairix.el now on EmacsWiki

[Carsten Dominik]

On Sep 27, 2007, at 16:16, Georg C. F. Greve wrote:

> Hi all,
>
> I just put org-mairix.el up on EmacsWiki at
>
>  http://www.emacswiki.org/emacs/org-mairix.el
>
> and created a link from the EmacsWiki Org mode page.
>
> Carsten: Do you think you could link to it from the Org mode home page,
> as well?

Sure, will do so.

- Carsten

Re: org-mairix.el now on EmacsWiki

[Adam Spiers]

On Thu, Sep 27, 2007 at 04:16:12PM +0200, Georg C. F. Greve wrote:
>  http://www.emacswiki.org/emacs/org-mairix.el

Hi Georg,

See my other post sent within a few minutes of this for deeper
discussion points, but just wanted to point out a minor cosmetic issue
here which I noticed when I started to hack org-mairix for adding mutt
support:

  ;;; Generic org-mairix functions

  (defun org-mairix-store-link ()
    [...]

Actually this function is gnus-specific, so I would suggest that it be
renamed to org-mairix-gnus-store-link and moved to a different
location within the file so that it is not under the 'Generic'
sub-heading.

Thanks,
Adam

Re: org-mairix.el now on EmacsWiki

[Adam Spiers]

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On Sat, Dec 08, 2007 at 08:08:34PM +0000, Adam Spiers wrote:
> On Thu, Sep 27, 2007 at 04:16:12PM +0200, Georg C. F. Greve wrote:
> >  http://www.emacswiki.org/emacs/org-mairix.el
> 
> Hi Georg,
> 
> See my other post sent within a few minutes of this for deeper
> discussion points, but just wanted to point out a minor cosmetic issue
> here which I noticed when I started to hack org-mairix for adding mutt
> support:
> 
>   ;;; Generic org-mairix functions
> 
>   (defun org-mairix-store-link ()
>     [...]
> 
> Actually this function is gnus-specific, so I would suggest that it be
> renamed to org-mairix-gnus-store-link and moved to a different
> location within the file so that it is not under the 'Generic'
> sub-heading.

I am halfway through integrating mutt support into org-mairix.  The
latest version is attached and has the above cosmetic tweak applied.
I do not use gnus so I would be grateful if Georg or someone else
could test it to make sure I didn't break anything w.r.t. gnus.
Georg, feel free to upload it to emacswiki.org if it meets with your
approval.

Please note that it does not yet support automatic insertion of links
to messages marked externally by a helper invoked from within mutt.  I
have code which does that, but it's a simple hack using Perl which
lacks full plist-based integration, so I am waiting for advice in how
to resolve the issues described here:

  http://thread.gmane.org/gmane.emacs.orgmode/4217/focus=4635

before I can make a fully-functional release.

There are other issues with the code I would welcome feedback on.  For
instance, we need to define and document the syntax of the
mairix:... link, and I think it should support more flexibility than
it currently does, e.g.

  - state within the link (rather than globally via a custom variable)
    whether to do a threaded search or not,

  - search by arbitrary mairix expressions, not just message ids, and

  - per-link support for other mairix arguments such as -f <rcfile> for
    allowing multiple concurrent mairix setups.  I personally need
    this since I keep my work and personal mail archives (and mairix
    indices) completely separate.

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;;; org-mairix.el - Support for hooking mairix search into Org for different MUAs
;;
;; Copyright (C) 2007 Georg C. F. Greve
;; mutt support by Adam Spiers <orgmode at adamspiers dot org>
;;
;; Author: Georg C. F. Greve <greve at fsfeurope dot org>
;; Keywords: outlines, hypermedia, calendar, wp, email, mairix
;; Purpose: Integrate mairix email searching into Org mode
;; See http://orgmode.org and http://www.rpcurnow.force9.co.uk/mairix/
;; Version: 0.5
;;
;; This file is Free Software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 3, or (at your option)
;; any later version.

;; It is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
;; License for more details.

;; You should have received a copy of the GNU General Public License
;; along with GNU Emacs; see the file COPYING.  If not, write to the
;; Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
;; Boston, MA 02110-1301, USA.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; USAGE NOTE
;;
;; You will need to configure mairix first, which involves setting up your
;; .mairixrc in your home directory. Once it is working, you should set up
;; your way to display results in your favorite way -- usually a MUA.
;; Currently gnus and mutt are supported.
;;
;; After both steps are done, all you should need to hook mairix, org
;; and your MUA together is to do (require 'org-mairix) in your
;; startup file. Everything can then be configured normally through
;; Emacs customisation.
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

(require 'org)

;;; The custom variables

(defgroup org-mairix nil
  "Mairix support/integration in org."
  :tag "Org Mairix"
  :group 'org)

(defcustom org-mairix-threaded-links t
  "Should new links be created as threaded links?
If t, links will be stored as threaded searches.
If nil, links will be stored as non-threaded searches."
  :group 'org-mairix
  :type 'boolean)

(defcustom org-mairix-augmented-links nil
  "Should new links be created as augmenting searches?
If t, links will be stored as augmenting searches.
If nil, links will be stored as normal searches.

Attention: When activating this option, you will need
to remove old articles from your mairix results group
in some other way, mairix will not do it for you."
  :group 'org-mairix
  :type 'boolean)

(defcustom org-mairix-display-hook 'org-mairix-gnus-display-results
  "Hook to call to display the results of a successful mairix search.
Defaults to Gnus, feel free to add your own MUAs or methods."
  :group 'org-mairix
  :type 'hook)

(defcustom org-mairix-open-command "mairix %args% '%search%'"
  "The mairix command-line to use. If your paths are set up
correctly, you should not need to change this.

'%search%' will get substituted with the search expression, and
'%args%' with any additional arguments."
  :group 'org-mairix
  :type 'string)

;;; The hooks to integrate mairix into org

(org-add-link-type "mairix" 'org-mairix-open)
(add-hook 'org-store-link-functions 'org-mairix-store-gnus-link)

;;; Generic org-mairix functions

(defun org-mairix-construct-link (message-id)
  "Construct a mairix: hyperlink based on message-id."
  (concat "mairix:"
          (if org-mairix-threaded-links "t:")
          (if org-mairix-augmented-links "a:")
          "@@"
          (org-remove-angle-brackets message-id)))

(defun org-store-mairix-link-props (&rest plist)
  "Take a property list describing a mail, and add mairix link
and description properties so that org can build a mairix link to
it."
  ;; We have to call `org-store-link-props' twice:
  ;;
  ;;   - It extracts 'fromname'/'fromaddress' from 'from' property,
  ;;     and stores the updated plist to `org-store-link-plist'.
  ;;
  ;;   - `org-email-link-description' uses these new properties to
  ;;     build a description from the previously stored plist.  I
  ;;     wrote a tiny patch to `org-email-link-description' so it
  ;;     could take a non-stored plist as an optional 2nd argument,
  ;;     but the plist provided still needs 'fromname'/'fromaddress'.
  ;;
  ;;   - Ideally we would decouple the storing bit of
  ;;     `org-store-link-props' from the extraction bit, but lots of
  ;;     stuff in `org-store-link' which calls it would need to be
  ;;     changed.  Maybe just factor out the extraction so it can be
  ;;     reused separately?
  (let ((mid (plist-get plist :message-id)))
    (apply 'org-store-link-props
           (append plist
                   (list :type "mairix"
                         :link (org-mairix-construct-link mid))))
    (apply 'org-store-link-props
           (append org-store-link-plist
                   (list :description (org-email-link-description))))))

(defun org-mairix-message-send-and-exit-with-link ()
  "Function that can be assigned as an alternative sending function,
it sends the message and then stores a mairix link to it before burying
the buffer just like 'message-send-and-exit' does."
  (interactive)
  (message-send)
  (let* ((message-id (message-fetch-field "Message-Id"))
	 (subject (message-fetch-field "Subject"))
	 (link (org-mairix-construct-link message-id))
	 (desc (concat "Email: '" subject "'")))
    (setq org-stored-links
	  (cons (list link desc) org-stored-links)))
  (message-bury (current-buffer)))

(defun org-mairix-open (search)
  "Function to open mairix link.

We first need to split it into its individual parts, and then
extract the message-id to be passed on to the display function
before call mairix, evaluate the number of matches returned, and
make sure to only call display of mairix succeeded in matching."
  (let* ((args ""))
    (if (equal (substring search 0 2) "t:" )
	(progn (setq search (substring search 2 nil))
	       (setq args (concat args " --threads"))))
    (if (equal (substring search 0 2) "a:")
	(progn (setq search (substring search 2 nil))
	       (setq args (concat args " --augment"))))
    (let ((cmdline (org-mairix-command-substitution
                    org-mairix-open-command search args)))
      (print cmdline)
      (setq retval (shell-command-to-string cmdline))
      (string-match "\[0-9\]+" retval)
      (setq matches (string-to-number (match-string 0 retval)))
      (if (eq matches 0) (message "Link failed: no matches, sorry")
        (message "Link returned %d matches" matches)
        (run-hook-with-args 'org-mairix-display-hook search args)))))

(defun org-mairix-command-substitution (cmd search args)
  "Substitute '%search%' and '%args% in mairix search command."
  (while (string-match "%search%" cmd)
    (setq cmd (replace-match search 'fixedcase 'literal cmd)))
  (while (string-match "%args%" cmd)
    (setq cmd (replace-match args 'fixedcase 'literal cmd)))
  cmd)

;;; Functions necessary for integration of external MUAs.

;; Of course we cannot call `org-store-link' from within an external
;; MUA, so we need some other way of storing a link for later
;; retrieval by org-mode and/or remember-mode.  To do this we use a
;; temporary file as a kind of dedicated clipboard.

(defcustom org-mairix-link-clipboard "~/.org-mairix-link"
  "Pseudo-clipboard file where mairix URLs get copied to by external
applications in order to mimic `org-store-link'.  Used by
`org-mairix-insert-link'."
  :group 'org-mairix
  :type 'string)

;; When we resolve some of the issues with `org-store-link' detailed
;; at <http://thread.gmane.org/gmane.emacs.orgmode/4217/focus=4635>,
;; we might not need org-mairix-insert-link.

(defun org-mairix-insert-link ()
  "Insert link from file defined by `org-mairix-link-clipboard'."
  (interactive)
  (let ((bytes (cadr (insert-file-contents
                      (expand-file-name org-mairix-link-clipboard)))))
    (forward-char bytes)
    (save-excursion
      (forward-char -1)
      (if (looking-at "\n")
          (delete-char 1)))))

;;; Functions necessary for mutt integration

(defgroup org-mairix-mutt nil
  "Use mutt for mairix support in org."
  :tag "Org Mairix Mutt"
  :group 'org-mairix)

(defcustom org-mairix-mutt-display-command
  "xterm -title 'mairix search: %search%' -e 'unset COLUMNS; mutt -f ~/mail/mairix -e \"push <display-message>\"' &"
  "Command to execute to display mairix search results via mutt within
an xterm.

'%search%' will get substituted with the search expression, and
'%args%' with any additional arguments used in the search."
  :group 'org-mairix-mutt
  :type 'string)

(defun org-mairix-mutt-display-results (search args)
  "Display results of mairix search in mutt, using the command line
defined in `org-mairix-mutt-display-command'."
  ;; By default, async `shell-command' invocations display the temp
  ;; buffer, which is annoying here.  We choose a deterministic
  ;; buffer name so we can hide it again immediately.
  ;; Note: `call-process' is synchronous so not useful here.
  (let ((cmd (org-mairix-command-substitution
              org-mairix-mutt-display-command search args))
        (tmpbufname (generate-new-buffer-name " *mairix-view*")))
    (shell-command cmd tmpbufname)
    (delete-windows-on (get-buffer tmpbufname))))

;;; Functions necessary for gnus integration

(defgroup org-mairix-gnus nil
  "Use gnus for mairix support in org."
  :tag "Org Mairix Gnus"
  :group 'org-mairix)

(defcustom org-mairix-gnus-results-group "nnmaildir:mairix"
  "The group that is configured to hold the mairix search results,
which needs to be setup independently of the org-mairix integration,
along with general mairix configuration."
  :group 'org-mairix-gnus
  :type 'string)

(defcustom org-mairix-gnus-select-display-group-function 'org-mairix-gnus-select-display-group-function-gg
  "Hook to call to select the group that contains the matching articles.
We should not need this, it is owed to a problem of gnus that people were
not yet able to figure out, see
 http://article.gmane.org/gmane.emacs.gnus.general/65248
 http://article.gmane.org/gmane.emacs.gnus.general/65265
 http://article.gmane.org/gmane.emacs.gnus.user/9596
for reference.

It seems gnus needs a 'forget/ignore everything you think you
know about that group' function. Volunteers?"
  :group 'org-mairix-gnus
  :type 'hook)

(defun org-mairix-store-gnus-link ()
  "Store a link to the current gnus message as a Mairix search for its
Message ID."

  ;; gnus integration
  (when (memq major-mode '(gnus-summary-mode gnus-article-mode))
    (and (eq major-mode 'gnus-article-mode) (gnus-article-show-summary))
    (let* ((article (gnus-summary-article-number))
	   (header (gnus-summary-article-header article))
	   (from (mail-header-from header))
	   (message-id (mail-header-id header))
	   (subject (gnus-summary-subject-string)))
      (org-store-mairix-link-props :from from
                                   :subject subject
                                   :message-id message-id))))

(defun org-mairix-gnus-display-results (search args)
  "Display results of mairix search in Gnus.

Note: This does not work as cleanly as I would like it to. The
problem being that Gnus should simply reread the group cleanly,
without remembering anything. At the moment it seems to be unable
to do that -- so you're likely to see zombies floating around.

If you can improve this, please do!"
  (if (not (equal (substring search 0 2) "m:" ))
      (error "org-mairix-gnus-display-results: display of search other than message-id not implemented yet"))
  (setq message-id (substring search 2 nil))
  (require 'gnus)
  (require 'gnus-sum)
  ;; FIXME: (bzg/gg) We might need to make sure gnus is running here,
  ;;        and to start it in case it isn't running already. Does
  ;;        anyone know a function to do that? It seems main org mode
  ;;        does not do this, either.
  (funcall (cdr (assq 'gnus org-link-frame-setup)))
  (if gnus-other-frame-object (select-frame gnus-other-frame-object))

  ;; FIXME: This is horribly broken. Please see
  ;;  http://article.gmane.org/gmane.emacs.gnus.general/65248
  ;;  http://article.gmane.org/gmane.emacs.gnus.general/65265
  ;;  http://article.gmane.org/gmane.emacs.gnus.user/9596
  ;; for reference.
  ;;
  ;; It seems gnus needs a "forget/ignore everything you think you
  ;; know about that group" function. Volunteers?
  ;;
  ;; For now different methods seem to work differently well for
  ;; different people. So we're playing hook-selection here to make
  ;; it easy to play around until we found a proper solution.
  (run-hook-with-args 'org-mairix-gnus-select-display-group-function)
  (gnus-summary-select-article
   nil t t (car (gnus-find-matching-articles "message-id" message-id))))

(defun org-mairix-gnus-select-display-group-function-gg ()
  "Georg's hack to select a group that gnus (falsely) believes to be
empty to then call rebuilding of the summary. It leaves zombies of
old searches around, though."
  (gnus-group-quick-select-group 0 org-mairix-gnus-results-group)
  (gnus-group-clear-data)
  (gnus-summary-reselect-current-group t t))

(defun org-mairix-gnus-select-display-group-function-bzg ()
  "This is the classic way the org mode is using, and it seems to be
using better for Bastien, so it may work for you."
  (gnus-group-clear-data org-mairix-gnus-results-group)
  (gnus-group-read-group t nil org-mairix-gnus-results-group))

(provide 'org-mairix)

;;; org-mairix.el ends here

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