X-Git-Url: https://git.notmuchmail.org/git?p=notmuch;a=blobdiff_plain;f=emacs%2Fnotmuch-lib.el;h=78978ee34c9b806438c3fd9c497a11c11f9eb41c;hp=d4b668496e51cb48355473c6427facc6170d0cee;hb=0cf457b73b4b666314d1a09ac3e31bd0fa2346a6;hpb=021906d6ec60360b5587ae08657fd6caa9a71b17

diff --git a/emacs/notmuch-lib.el b/emacs/notmuch-lib.el
index d4b66849..78978ee3 100644
--- a/emacs/notmuch-lib.el
+++ b/emacs/notmuch-lib.el
@@ -1,4 +1,4 @@
-;; notmuch-lib.el --- common variables, functions and function declarations
+;;; notmuch-lib.el --- common variables, functions and function declarations
 ;;
 ;; Copyright © Carl Worth
 ;;
@@ -21,10 +21,16 @@
 
 ;; This is an part of an emacs-based interface to the notmuch mail system.
 
+;;; Code:
+
 (require 'mm-view)
 (require 'mm-decode)
 (require 'cl)
 
+(unless (require 'notmuch-version nil t)
+  (defconst notmuch-emacs-version "unknown"
+    "Placeholder variable when notmuch-version.el[c] is not available."))
+
 (autoload 'notmuch-jump-search "notmuch-jump"
   "Jump to a saved search by shortcut key." t)
 
@@ -192,8 +198,8 @@ Otherwise the output will be returned"
 "Perhaps you haven't run \"notmuch setup\" yet? Try running this
 on the command line, and then retry your notmuch command")))
 
-(defun notmuch-version ()
-  "Return a string with the notmuch version number."
+(defun notmuch-cli-version ()
+  "Return a string with the notmuch cli command version number."
   (let ((long-string
 	 ;; Trim off the trailing newline.
 	 (substring (notmuch-command-to-string "--version") 0 -1)))
@@ -228,6 +234,9 @@ on the command line, and then retry your notmuch command")))
   "Return the user.other_email value (as a list) from the notmuch configuration."
   (split-string (notmuch-config-get "user.other_email") "\n" t))
 
+(defun notmuch-user-emails ()
+  (cons (notmuch-user-primary-email) (notmuch-user-other-email)))
+
 (defun notmuch-poll ()
   "Run \"notmuch new\" or an external script to import mail.
 
@@ -236,8 +245,9 @@ depending on the value of `notmuch-poll-script'."
   (interactive)
   (if (stringp notmuch-poll-script)
       (unless (string= notmuch-poll-script "")
-	(call-process notmuch-poll-script nil nil))
-    (call-process notmuch-command nil nil nil "new")))
+	(unless (equal (call-process notmuch-poll-script nil nil) 0)
+	  (error "Notmuch: poll script `%s' failed!" notmuch-poll-script)))
+    (notmuch-call-notmuch-process "new")))
 
 (defun notmuch-bury-or-kill-this-buffer ()
   "Undisplay the current buffer.
@@ -512,11 +522,23 @@ This replaces spaces, percents, and double quotes in STR with
     "multipart/related"
     ))
 
-(defun notmuch-multipart/alternative-choose (types)
-  "Return a list of preferred types from the given list of types"
+(defun notmuch-multipart/alternative-determine-discouraged (msg)
+  "Return the discouraged alternatives for the specified message."
+  ;; If a function, return the result of calling it.
+  (if (functionp notmuch-multipart/alternative-discouraged)
+      (funcall notmuch-multipart/alternative-discouraged msg)
+    ;; Otherwise simply return the value of the variable, which is
+    ;; assumed to be a list of discouraged alternatives. This is the
+    ;; default behaviour.
+    notmuch-multipart/alternative-discouraged))
+
+(defun notmuch-multipart/alternative-choose (msg types)
+  "Return a list of preferred types from the given list of types
+for this message, if present."
   ;; Based on `mm-preferred-alternative-precedence'.
-  (let ((seq types))
-    (dolist (pref (reverse notmuch-multipart/alternative-discouraged))
+  (let ((discouraged (notmuch-multipart/alternative-determine-discouraged msg))
+	(seq types))
+    (dolist (pref (reverse discouraged))
       (dolist (elem (copy-sequence seq))
 	(when (string-match pref elem)
 	  (setq seq (nconc (delete elem seq) (list elem))))))
@@ -529,25 +551,56 @@ the given type."
    (lambda (part) (notmuch-match-content-type (plist-get part :content-type) type))
    parts))
 
-(defun notmuch-get-bodypart-binary (msg part process-crypto)
-  "Return the unprocessed content of PART in MSG.
+(defun notmuch--get-bodypart-raw (msg part process-crypto binaryp cache)
+  (let* ((plist-elem (if binaryp :content-binary :content))
+	 (data (or (plist-get part plist-elem)
+		   (with-temp-buffer
+		     ;; Emacs internally uses a UTF-8-like multibyte string
+		     ;; representation by default (regardless of the coding
+		     ;; system, which only affects how it goes from outside data
+		     ;; to this internal representation).  This *almost* never
+		     ;; matters.  Annoyingly, it does matter if we use this data
+		     ;; in an image descriptor, since Emacs will use its internal
+		     ;; data buffer directly and this multibyte representation
+		     ;; corrupts binary image formats.  Since the caller is
+		     ;; asking for binary data, a unibyte string is a more
+		     ;; appropriate representation anyway.
+		     (when binaryp
+		       (set-buffer-multibyte nil))
+		     (let ((args `("show" "--format=raw"
+				   ,(format "--part=%s" (plist-get part :id))
+				   ,@(when process-crypto '("--decrypt"))
+				   ,(notmuch-id-to-query (plist-get msg :id))))
+			   (coding-system-for-read
+			    (if binaryp 'no-conversion 'utf-8)))
+		       (apply #'call-process notmuch-command nil '(t nil) nil args)
+		       (buffer-string))))))
+    (when (and cache data)
+      (plist-put part plist-elem data))
+    data))
+
+(defun notmuch-get-bodypart-binary (msg part process-crypto &optional cache)
+  "Return the unprocessed content of PART in MSG as a unibyte string.
 
 This returns the \"raw\" content of the given part after content
 transfer decoding, but with no further processing (see the
 discussion of --format=raw in man notmuch-show).  In particular,
-this does no charset conversion."
-  (let ((args `("show" "--format=raw"
-		,(format "--part=%d" (plist-get part :id))
-		,@(when process-crypto '("--decrypt"))
-		,(notmuch-id-to-query (plist-get msg :id)))))
-    (with-temp-buffer
-      (let ((coding-system-for-read 'no-conversion))
-	(apply #'call-process notmuch-command nil '(t nil) nil args)
-	(buffer-string)))))
+this does no charset conversion.
 
-(defun notmuch-get-bodypart-content (msg part process-crypto)
-  (or (plist-get part :content)
-      (notmuch-get-bodypart-binary msg part process-crypto)))
+If CACHE is non-nil, the content of this part will be saved in
+MSG (if it isn't already)."
+  (notmuch--get-bodypart-raw msg part process-crypto t cache))
+
+(defun notmuch-get-bodypart-text (msg part process-crypto &optional cache)
+  "Return the text content of PART in MSG.
+
+This returns the content of the given part as a multibyte Lisp
+string after performing content transfer decoding and any
+necessary charset decoding.
+
+If CACHE is non-nil, the content of this part will be saved in
+MSG (if it isn't already)."
+  (notmuch--get-bodypart-raw msg part process-crypto nil cache))
 
 ;; Workaround: The call to `mm-display-part' below triggers a bug in
 ;; Emacs 24 if it attempts to use the shr renderer to display an HTML
@@ -568,18 +621,21 @@ this does no charset conversion."
 current buffer, if possible."
   (let ((display-buffer (current-buffer)))
     (with-temp-buffer
-      ;; In case there is :content, the content string is already converted
-      ;; into emacs internal format. `gnus-decoded' is a fake charset,
-      ;; which means no further decoding (to be done by mm- functions).
-      (let* ((charset (if (plist-member part :content)
-			  'gnus-decoded
+      ;; In case we already have :content, use it and tell mm-* that
+      ;; it's already been charset-decoded by using the fake
+      ;; `gnus-decoded' charset.  Otherwise, we'll fetch the binary
+      ;; part content and let mm-* decode it.
+      (let* ((have-content (plist-member part :content))
+	     (charset (if have-content 'gnus-decoded
 			(plist-get part :content-charset)))
 	     (handle (mm-make-handle (current-buffer) `(,content-type (charset . ,charset)))))
 	;; If the user wants the part inlined, insert the content and
 	;; test whether we are able to inline it (which includes both
 	;; capability and suitability tests).
 	(when (mm-inlined-p handle)
-	  (insert (notmuch-get-bodypart-content msg part process-crypto))
+	  (if have-content
+	      (insert (notmuch-get-bodypart-text msg part process-crypto))
+	    (insert (notmuch-get-bodypart-binary msg part process-crypto)))
 	  (when (mm-inlinable-p handle)
 	    (set-buffer display-buffer)
 	    (mm-display-part handle)
@@ -877,3 +933,5 @@ status."
 ;; Local Variables:
 ;; byte-compile-warnings: (not cl-functions)
 ;; End:
+
+;;; notmuch-lib.el ends here