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28 Tue, 8 Apr 2014 02:19:46 -0700 (PDT)
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30 return-gsfbd9y6t2m24wu4hrg33p5p5n@ta.scs.stanford.edu using -f
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31 From: David Mazieres <dm-list-email-notmuch@scs.stanford.edu>
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32 To: Ian Kelling <ian@iankelling.org>, notmuch@notmuchmail.org
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33 Subject: Re: gnus-alias integration bug
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34 In-Reply-To: <87vbuk8xo5.fsf@treetowl.lan>
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35 References: <87vbuk8xo5.fsf@treetowl.lan>
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36 Date: Tue, 08 Apr 2014 11:19:46 +0200
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37 Message-ID: <8738hogoul.fsf@ta.scs.stanford.edu>
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39 Content-Type: text/plain
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40 X-BeenThere: notmuch@notmuchmail.org
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43 Reply-To: David Mazieres expires 2014-07-07 CEST
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44 <mazieres-ta6a6dtvd22xr33tw7tutuhifs@temporary-address.scs.stanford.edu>
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45 List-Id: "Use and development of the notmuch mail system."
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46 <notmuch.notmuchmail.org>
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48 <mailto:notmuch-request@notmuchmail.org?subject=unsubscribe>
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49 List-Archive: <http://notmuchmail.org/pipermail/notmuch>
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54 X-List-Received-Date: Tue, 08 Apr 2014 09:20:08 -0000
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56 Ian Kelling <ian@iankelling.org> writes:
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58 > gnus-alias allows you to set your identity based on the headers in the
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59 > message you are replying. This is an essential feature in a mail client
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60 > for me, I want to automatically reply as the person an email was sent to
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61 > for certain addresses. This does not work in notmuch.
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63 I need this feature, too. There is some support for the same
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64 functionality built into notmuch. The big problem for me is that
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65 .notmuch-config does not support wildcards (e.g., *@mydomain.com or
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66 user-*@mydomain.com). Compounding this issue is that, other than
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67 notmuch reply's internals, notmuch pretty much suppresses the
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68 Delivered-To header, which is crucial for knowing in a non-heuristic way
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69 where an email was actually delivered to. I want to compute my From:
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70 header based on the Delivered-To, so I created a
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71 mail-delivered-to-reply-from alist that maps one to the other.
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73 It's pretty horrifying what I had to do to get this to work, but it
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74 looks something like the following. (Apologies for any mistakes, I had
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75 to strip out additional complexity I have for other things in there, so
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76 it's not verbatim the code that I'm using, but it's pretty close.)
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78 If someone knows a better way of doing this with stock notmuch, please
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79 let me know. I know it's simpler to fix notmuch-reply, but I really
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80 don't want to start depending on a custom-forked version on the notmuch
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81 binary, as I read my mail from multiple operating systems and I'm sure
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82 I'd forget to update one of them.
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87 ;;; Regular expression matching all of my own email addresses. Note
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88 ;;; this is also used by mail-dont-reply-to (which ships with emacs).
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89 (setq mail-dont-reply-to-names
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90 (concat "REXEXP MATCHING ALL YOUR EMAIL ALIASES"))
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92 ;;; Alist mapping Delivered-To addresses to the address that should be
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93 ;;; in the From header of replies.
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94 (setq mail-delivered-to-reply-from
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95 '(("delivered-to-\\(.*\\)@address.com"
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96 . "Name <send-from-\\1@address.com>")
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100 (defun compute-from (email)
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101 (let ((case-fold-search t)
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102 (subst (assoc-default email mail-delivered-to-reply-from
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105 (concat (notmuch-user-name) " <"
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106 (replace-match subst t nil email) ">"))))
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108 (defun get-delivered-to-from-path (path)
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110 ; It's weird to use sed, but there's also no reason to read a huge
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111 ; file into a buffer right here when we reply to messags with
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112 ; attachments. (notmuch show doesn't support --body=false in
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113 ; --format=raw mode, and the other modes all get rid of Delivered-To.)
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114 (call-process "sed" nil t t "-ne"
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115 "/^Delivered-To: */{s///p;q;}; /^$/q" path)
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116 (goto-char (point-max))
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117 (or (bobp) (delete-char -1))
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118 (and (not (bobp)) (buffer-string))))
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120 (defun get-msg-pathnames (query)
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121 (notmuch-call-notmuch-sexp
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122 "search" "--format=sexp" "--format-version=1"
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123 "--output=files" "--" query))
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125 (defun compute-reply-from (pl)
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126 (let* ((orig (plist-get pl :original))
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127 (path (plist-get orig :filename))
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128 (orig-from (plist-get (plist-get orig :headers) :From))
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131 ((get-delivered-to-from-path path))
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132 ;; in case of maildir.synchronize_flags=true, the pathname
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133 ;; might already be incorrect, so try getting it again
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134 ((and (setq path (car (get-msg-pathnames query-string)))
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135 (get-delivered-to-from-path path)))
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136 ((string-match mail-dont-reply-to-names
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137 (setq orig-from (car (rfc822-addresses orig-from))))
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140 (and addr (compute-from addr))))
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142 ;;; Somehow no plist-del function in emacs
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143 (defun my-plist-del (plist0 prop)
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144 (if (eq prop (car plist0))
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146 (let ((p (cdr plist0)))
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147 (while (and p (not (eq prop (cadr p))))
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149 (if p (setcdr p (cdddr p)))
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152 (defun fix-reply-sexp (pl)
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153 (let* ((rh (plist-get pl :reply-headers))
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154 (from (compute-reply-from pl))
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156 (if from (setq rh (plist-put rh :From from)))
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157 (and (setq h (plist-get rh :To))
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158 (setq h (mail-dont-reply-to h))
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160 (setq rh (plist-put rh :To h)))
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161 (and (setq h (plist-get rh :Cc))
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162 (setq h (mail-dont-reply-to h))
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164 (setq rh (my-plist-del rh :Cc))
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165 (setq rh (plist-put rh :Cc h))))
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166 (plist-put pl :reply-headers rh)))
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167 (defadvice notmuch-call-notmuch-sexp (after fix-reply activate)
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168 "Fix From/To/CC headers in reply"
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169 (if (equal (ad-get-arg 0) "reply")
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170 (setq ad-return-value (fix-reply-sexp ad-return-value))))
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