;; This is an part of an emacs-based interface to the notmuch mail system.
-(defvar notmuch-command "notmuch"
- "Command to run the notmuch binary.")
+(require 'mm-view)
+(require 'mm-decode)
+(require 'cl)
+
+(autoload 'notmuch-jump-search "notmuch-jump"
+ "Jump to a saved search by shortcut key." t)
(defgroup notmuch nil
"Notmuch mail reader for Emacs."
"Graphical attributes for displaying text"
:group 'notmuch)
+(defcustom notmuch-command "notmuch"
+ "Name of the notmuch binary.
+
+This can be a relative or absolute path to the notmuch binary.
+If this is a relative path, it will be searched for in all of the
+directories given in `exec-path' (which is, by default, based on
+$PATH)."
+ :type 'string
+ :group 'notmuch-external)
+
(defcustom notmuch-search-oldest-first t
- "Show the oldest mail first when searching."
+ "Show the oldest mail first when searching.
+
+This variable defines the default sort order for displaying
+search results. Note that any filtered searches created by
+`notmuch-search-filter' retain the search order of the parent
+search."
:type 'boolean
:group 'notmuch-search)
+(defcustom notmuch-poll-script nil
+ "[Deprecated] Command to run to incorporate new mail into the notmuch database.
+
+This option has been deprecated in favor of \"notmuch new\"
+hooks (see man notmuch-hooks). To change the path to the notmuch
+binary, customize `notmuch-command'.
+
+This variable controls the action invoked by
+`notmuch-poll-and-refresh-this-buffer' (bound by default to 'G')
+to incorporate new mail into the notmuch database.
+
+If set to nil (the default), new mail is processed by invoking
+\"notmuch new\". Otherwise, this should be set to a string that
+gives the name of an external script that processes new mail. If
+set to the empty string, no command will be run.
+
+The external script could do any of the following depending on
+the user's needs:
+
+1. Invoke a program to transfer mail to the local mail store
+2. Invoke \"notmuch new\" to incorporate the new mail
+3. Invoke one or more \"notmuch tag\" commands to classify the mail"
+ :type '(choice (const :tag "notmuch new" nil)
+ (const :tag "Disabled" "")
+ (string :tag "Custom script"))
+ :group 'notmuch-external)
+
;;
-(defcustom notmuch-saved-searches nil
- "A list of saved searches to display."
- :type '(alist :key-type string :value-type string)
- :group 'notmuch-hello)
-
-(defvar notmuch-folders nil
- "Deprecated name for what is now known as `notmuch-saved-searches'.")
-
-(defun notmuch-saved-searches ()
- "Common function for querying the notmuch-saved-searches variable.
-
-We do this as a function to support the old name of the
-variable (`notmuch-folders') as well as for the default value if
-the user hasn't set this variable with the old or new value."
- (if notmuch-saved-searches
- notmuch-saved-searches
- (if notmuch-folders
- notmuch-folders
- '(("inbox" . "tag:inbox")
- ("unread" . "tag:unread")))))
-
-(defun notmuch-version ()
- "Return a string with the notmuch version number."
+(defvar notmuch-search-history nil
+ "Variable to store notmuch searches history.")
+
+(defcustom notmuch-archive-tags '("-inbox")
+ "List of tag changes to apply to a message or a thread when it is archived.
+
+Tags starting with \"+\" (or not starting with either \"+\" or
+\"-\") in the list will be added, and tags starting with \"-\"
+will be removed from the message or thread being archived.
+
+For example, if you wanted to remove an \"inbox\" tag and add an
+\"archived\" tag, you would set:
+ (\"-inbox\" \"+archived\")"
+ :type '(repeat string)
+ :group 'notmuch-search
+ :group 'notmuch-show)
+
+(defvar notmuch-common-keymap
+ (let ((map (make-sparse-keymap)))
+ (define-key map "?" 'notmuch-help)
+ (define-key map "q" 'notmuch-bury-or-kill-this-buffer)
+ (define-key map "s" 'notmuch-search)
+ (define-key map "z" 'notmuch-tree)
+ (define-key map "m" 'notmuch-mua-new-mail)
+ (define-key map "=" 'notmuch-refresh-this-buffer)
+ (define-key map "G" 'notmuch-poll-and-refresh-this-buffer)
+ (define-key map "j" 'notmuch-jump-search)
+ map)
+ "Keymap shared by all notmuch modes.")
+
+;; By default clicking on a button does not select the window
+;; containing the button (as opposed to clicking on a widget which
+;; does). This means that the button action is then executed in the
+;; current selected window which can cause problems if the button
+;; changes the buffer (e.g., id: links) or moves point.
+;;
+;; This provides a button type which overrides mouse-action so that
+;; the button's window is selected before the action is run. Other
+;; notmuch buttons can get the same behaviour by inheriting from this
+;; button type.
+(define-button-type 'notmuch-button-type
+ 'mouse-action (lambda (button)
+ (select-window (posn-window (event-start last-input-event)))
+ (button-activate button)))
+
+(defun notmuch-command-to-string (&rest args)
+ "Synchronously invoke \"notmuch\" with the given list of arguments.
+
+If notmuch exits with a non-zero status, output from the process
+will appear in a buffer named \"*Notmuch errors*\" and an error
+will be signaled.
+
+Otherwise the output will be returned"
+ (with-temp-buffer
+ (let* ((status (apply #'call-process notmuch-command nil t nil args))
+ (output (buffer-string)))
+ (notmuch-check-exit-status status (cons notmuch-command args) output)
+ output)))
+
+(defvar notmuch--cli-sane-p nil
+ "Cache whether the CLI seems to be configured sanely.")
+
+(defun notmuch-cli-sane-p ()
+ "Return t if the cli seems to be configured sanely."
+ (unless notmuch--cli-sane-p
+ (let ((status (call-process notmuch-command nil nil nil
+ "config" "get" "user.primary_email")))
+ (setq notmuch--cli-sane-p (= status 0))))
+ notmuch--cli-sane-p)
+
+(defun notmuch-assert-cli-sane ()
+ (unless (notmuch-cli-sane-p)
+ (notmuch-logged-error
+ "notmuch cli seems misconfigured or unconfigured."
+"Perhaps you haven't run \"notmuch setup\" yet? Try running this
+on the command line, and then retry your notmuch command")))
+
+(defun notmuch-cli-version ()
+ "Return a string with the notmuch cli command version number."
(let ((long-string
;; Trim off the trailing newline.
- (substring (shell-command-to-string
- (concat notmuch-command " --version"))
- 0 -1)))
+ (substring (notmuch-command-to-string "--version") 0 -1)))
(if (string-match "^notmuch\\( version\\)? \\(.*\\)$"
long-string)
(match-string 2 long-string)
(defun notmuch-config-get (item)
"Return a value from the notmuch configuration."
- ;; Trim off the trailing newline
- (substring (shell-command-to-string
- (concat notmuch-command " config get " item))
- 0 -1))
+ (let* ((val (notmuch-command-to-string "config" "get" item))
+ (len (length val)))
+ ;; Trim off the trailing newline (if the value is empty or not
+ ;; configured, there will be no newline)
+ (if (and (> len 0) (= (aref val (- len 1)) ?\n))
+ (substring val 0 -1)
+ val)))
(defun notmuch-database-path ()
"Return the database.path value from the notmuch configuration."
(defun notmuch-user-other-email ()
"Return the user.other_email value (as a list) from the notmuch configuration."
- (split-string (notmuch-config-get "user.other_email") "\n"))
+ (split-string (notmuch-config-get "user.other_email") "\n" t))
+
+(defun notmuch-poll ()
+ "Run \"notmuch new\" or an external script to import mail.
-(defun notmuch-kill-this-buffer ()
- "Kill the current buffer."
+Invokes `notmuch-poll-script', \"notmuch new\", or does nothing
+depending on the value of `notmuch-poll-script'."
(interactive)
- (kill-buffer (current-buffer)))
+ (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")))
+
+(defun notmuch-bury-or-kill-this-buffer ()
+ "Undisplay the current buffer.
+
+Bury the current buffer, unless there is only one window showing
+it, in which case it is killed."
+ (interactive)
+ (if (> (length (get-buffer-window-list nil nil t)) 1)
+ (bury-buffer)
+ (kill-buffer)))
+
+(defun notmuch-documentation-first-line (symbol)
+ "Return the first line of the documentation string for SYMBOL."
+ (let ((doc (documentation symbol)))
+ (if doc
+ (with-temp-buffer
+ (insert (documentation symbol t))
+ (goto-char (point-min))
+ (let ((beg (point)))
+ (end-of-line)
+ (buffer-substring beg (point))))
+ "")))
+
+(defun notmuch-prefix-key-description (key)
+ "Given a prefix key code, return a human-readable string representation.
+
+This is basically just `format-kbd-macro' but we also convert ESC to M-."
+ (let* ((key-vector (if (vectorp key) key (vector key)))
+ (desc (format-kbd-macro key-vector)))
+ (if (string= desc "ESC")
+ "M-"
+ (concat desc " "))))
+
+
+(defun notmuch-describe-key (actual-key binding prefix ua-keys tail)
+ "Prepend cons cells describing prefix-arg ACTUAL-KEY and ACTUAL-KEY to TAIL
+
+It does not prepend if ACTUAL-KEY is already listed in TAIL."
+ (let ((key-string (concat prefix (format-kbd-macro actual-key))))
+ ;; We don't include documentation if the key-binding is
+ ;; over-ridden. Note, over-riding a binding automatically hides the
+ ;; prefixed version too.
+ (unless (assoc key-string tail)
+ (when (and ua-keys (symbolp binding)
+ (get binding 'notmuch-prefix-doc))
+ ;; Documentation for prefixed command
+ (let ((ua-desc (key-description ua-keys)))
+ (push (cons (concat ua-desc " " prefix (format-kbd-macro actual-key))
+ (get binding 'notmuch-prefix-doc))
+ tail)))
+ ;; Documentation for command
+ (push (cons key-string
+ (or (and (symbolp binding) (get binding 'notmuch-doc))
+ (notmuch-documentation-first-line binding)))
+ tail)))
+ tail)
+
+(defun notmuch-describe-remaps (remap-keymap ua-keys base-keymap prefix tail)
+ ;; Remappings are represented as a binding whose first "event" is
+ ;; 'remap. Hence, if the keymap has any remappings, it will have a
+ ;; binding whose "key" is 'remap, and whose "binding" is itself a
+ ;; keymap that maps not from keys to commands, but from old (remapped)
+ ;; functions to the commands to use in their stead.
+ (map-keymap
+ (lambda (command binding)
+ (mapc
+ (lambda (actual-key)
+ (setq tail (notmuch-describe-key actual-key binding prefix ua-keys tail)))
+ (where-is-internal command base-keymap)))
+ remap-keymap)
+ tail)
+
+(defun notmuch-describe-keymap (keymap ua-keys base-keymap &optional prefix tail)
+ "Return a list of cons cells, each describing one binding in KEYMAP.
+
+Each cons cell consists of a string giving a human-readable
+description of the key, and a one-line description of the bound
+function. See `notmuch-help' for an overview of how this
+documentation is extracted.
+
+UA-KEYS should be a key sequence bound to `universal-argument'.
+It will be used to describe bindings of commands that support a
+prefix argument. PREFIX and TAIL are used internally."
+ (map-keymap
+ (lambda (key binding)
+ (cond ((mouse-event-p key) nil)
+ ((keymapp binding)
+ (setq tail
+ (if (eq key 'remap)
+ (notmuch-describe-remaps
+ binding ua-keys base-keymap prefix tail)
+ (notmuch-describe-keymap
+ binding ua-keys base-keymap (notmuch-prefix-key-description key) tail))))
+ (binding
+ (setq tail (notmuch-describe-key (vector key) binding prefix ua-keys tail)))))
+ keymap)
+ tail)
+
+(defun notmuch-substitute-command-keys (doc)
+ "Like `substitute-command-keys' but with documentation, not function names."
+ (let ((beg 0))
+ (while (string-match "\\\\{\\([^}[:space:]]*\\)}" doc beg)
+ (let ((desc
+ (save-match-data
+ (let* ((keymap-name (substring doc (match-beginning 1) (match-end 1)))
+ (keymap (symbol-value (intern keymap-name)))
+ (ua-keys (where-is-internal 'universal-argument keymap t))
+ (desc-alist (notmuch-describe-keymap keymap ua-keys keymap))
+ (desc-list (mapcar (lambda (arg) (concat (car arg) "\t" (cdr arg))) desc-alist)))
+ (mapconcat #'identity desc-list "\n")))))
+ (setq doc (replace-match desc 1 1 doc)))
+ (setq beg (match-end 0)))
+ doc))
+
+(defun notmuch-help ()
+ "Display help for the current notmuch mode.
+
+This is similar to `describe-function' for the current major
+mode, but bindings tables are shown with documentation strings
+rather than command names. By default, this uses the first line
+of each command's documentation string. A command can override
+this by setting the 'notmuch-doc property of its command symbol.
+A command that supports a prefix argument can explicitly document
+its prefixed behavior by setting the 'notmuch-prefix-doc property
+of its command symbol."
+ (interactive)
+ (let* ((mode major-mode)
+ (doc (substitute-command-keys (notmuch-substitute-command-keys (documentation mode t)))))
+ (with-current-buffer (generate-new-buffer "*notmuch-help*")
+ (insert doc)
+ (goto-char (point-min))
+ (set-buffer-modified-p nil)
+ (view-buffer (current-buffer) 'kill-buffer-if-not-modified))))
+
+(defun notmuch-subkeymap-help ()
+ "Show help for a subkeymap."
+ (interactive)
+ (let* ((key (this-command-keys-vector))
+ (prefix (make-vector (1- (length key)) nil))
+ (i 0))
+ (while (< i (length prefix))
+ (aset prefix i (aref key i))
+ (setq i (1+ i)))
+
+ (let* ((subkeymap (key-binding prefix))
+ (ua-keys (where-is-internal 'universal-argument nil t))
+ (prefix-string (notmuch-prefix-key-description prefix))
+ (desc-alist (notmuch-describe-keymap subkeymap ua-keys subkeymap prefix-string))
+ (desc-list (mapcar (lambda (arg) (concat (car arg) "\t" (cdr arg))) desc-alist))
+ (desc (mapconcat #'identity desc-list "\n")))
+ (with-help-window (help-buffer)
+ (with-current-buffer standard-output
+ (insert "\nPress 'q' to quit this window.\n\n")
+ (insert desc)))
+ (pop-to-buffer (help-buffer)))))
+
+(defvar notmuch-buffer-refresh-function nil
+ "Function to call to refresh the current buffer.")
+(make-variable-buffer-local 'notmuch-buffer-refresh-function)
+
+(defun notmuch-refresh-this-buffer ()
+ "Refresh the current buffer."
+ (interactive)
+ (when notmuch-buffer-refresh-function
+ (if (commandp notmuch-buffer-refresh-function)
+ ;; Pass prefix argument, etc.
+ (call-interactively notmuch-buffer-refresh-function)
+ (funcall notmuch-buffer-refresh-function))))
+
+(defun notmuch-poll-and-refresh-this-buffer ()
+ "Invoke `notmuch-poll' to import mail, then refresh the current buffer."
+ (interactive)
+ (notmuch-poll)
+ (notmuch-refresh-this-buffer))
+
+(defun notmuch-prettify-subject (subject)
+ ;; This function is used by `notmuch-search-process-filter' which
+ ;; requires that we not disrupt its' matching state.
+ (save-match-data
+ (if (and subject
+ (string-match "^[ \t]*$" subject))
+ "[No Subject]"
+ subject)))
+
+(defun notmuch-sanitize (str)
+ "Sanitize control character in STR.
+
+This includes newlines, tabs, and other funny characters."
+ (replace-regexp-in-string "[[:cntrl:]\x7f\u2028\u2029]+" " " str))
+
+(defun notmuch-escape-boolean-term (term)
+ "Escape a boolean term for use in a query.
+
+The caller is responsible for prepending the term prefix and a
+colon. This performs minimal escaping in order to produce
+user-friendly queries."
+
+ (save-match-data
+ (if (or (equal term "")
+ ;; To be pessimistic, only pass through terms composed
+ ;; entirely of ASCII printing characters other than ", (,
+ ;; and ).
+ (string-match "[^!#-'*-~]" term))
+ ;; Requires escaping
+ (concat "\"" (replace-regexp-in-string "\"" "\"\"" term t t) "\"")
+ term)))
+
+(defun notmuch-id-to-query (id)
+ "Return a query that matches the message with id ID."
+ (concat "id:" (notmuch-escape-boolean-term id)))
+
+(defun notmuch-hex-encode (str)
+ "Hex-encode STR (e.g., as used by batch tagging).
+
+This replaces spaces, percents, and double quotes in STR with
+%NN where NN is the hexadecimal value of the character."
+ (replace-regexp-in-string
+ "[ %\"]" (lambda (match) (format "%%%02x" (aref match 0))) str))
;;
(defun notmuch-common-do-stash (text)
"Common function to stash text in kill ring, and display in minibuffer."
- (kill-new text)
- (message "Stashed: %s" text))
+ (if text
+ (progn
+ (kill-new text)
+ (message "Stashed: %s" text))
+ ;; There is nothing to stash so stash an empty string so the user
+ ;; doesn't accidentally paste something else somewhere.
+ (kill-new "")
+ (message "Nothing to stash!")))
;;
(setq list (cdr list)))
(nreverse out)))
-;; This lets us avoid compiling these replacement functions when emacs
-;; is sufficiently new enough to supply them alone. We do the macro
-;; treatment rather than just wrapping our defun calls in a when form
-;; specifically so that the compiler never sees the code on new emacs,
-;; (since the code is triggering warnings that we don't know how to get
-;; rid of.
-;;
-;; A more clever macro here would accept a condition and a list of forms.
-(defmacro compile-on-emacs-prior-to-23 (form)
- "Conditionally evaluate form only on emacs < emacs-23."
- (list 'when (< emacs-major-version 23)
- form))
-
-;; Compatibility functions for versions of emacs before emacs 23.
-;;
-;; Both functions here were copied from emacs 23 with the following copyright:
-;;
-;; Copyright (C) 1985, 1986, 1992, 1994, 1995, 1999, 2000, 2001, 2002, 2003,
-;; 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
-;;
-;; and under the GPL version 3 (or later) exactly as notmuch itself.
-(compile-on-emacs-prior-to-23
- (defun apply-partially (fun &rest args)
- "Return a function that is a partial application of FUN to ARGS.
-ARGS is a list of the first N arguments to pass to FUN.
-The result is a new function which does the same as FUN, except that
-the first N arguments are fixed at the values with which this function
-was called."
- (lexical-let ((fun fun) (args1 args))
- (lambda (&rest args2) (apply fun (append args1 args2))))))
-
-(compile-on-emacs-prior-to-23
- (defun mouse-event-p (object)
- "Return non-nil if OBJECT is a mouse click event."
- (memq (event-basic-type object) '(mouse-1 mouse-2 mouse-3 mouse-movement))))
+(defun notmuch-plist-delete (plist property)
+ (let* ((xplist (cons nil plist))
+ (pred xplist))
+ (while (cdr pred)
+ (when (eq (cadr pred) property)
+ (setcdr pred (cdddr pred)))
+ (setq pred (cddr pred)))
+ (cdr xplist)))
+
+(defun notmuch-split-content-type (content-type)
+ "Split content/type into 'content' and 'type'"
+ (split-string content-type "/"))
+
+(defun notmuch-match-content-type (t1 t2)
+ "Return t if t1 and t2 are matching content types, taking wildcards into account"
+ (let ((st1 (notmuch-split-content-type t1))
+ (st2 (notmuch-split-content-type t2)))
+ (if (or (string= (cadr st1) "*")
+ (string= (cadr st2) "*"))
+ ;; Comparison of content types should be case insensitive.
+ (string= (downcase (car st1)) (downcase (car st2)))
+ (string= (downcase t1) (downcase t2)))))
+
+(defvar notmuch-multipart/alternative-discouraged
+ '(
+ ;; Avoid HTML parts.
+ "text/html"
+ ;; multipart/related usually contain a text/html part and some associated graphics.
+ "multipart/related"
+ ))
+
+(defun notmuch-multipart/alternative-choose (types)
+ "Return a list of preferred types from the given list of types"
+ ;; Based on `mm-preferred-alternative-precedence'.
+ (let ((seq types))
+ (dolist (pref (reverse notmuch-multipart/alternative-discouraged))
+ (dolist (elem (copy-sequence seq))
+ (when (string-match pref elem)
+ (setq seq (nconc (delete elem seq) (list elem))))))
+ seq))
+
+(defun notmuch-parts-filter-by-type (parts type)
+ "Given a list of message parts, return a list containing the ones matching
+the given type."
+ (remove-if-not
+ (lambda (part) (notmuch-match-content-type (plist-get part :content-type) type))
+ parts))
+
+(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.
+
+If CACHE is non-nil, the content of this part will be saved in
+MSG (if it isn't already)."
+ (let ((data (plist-get part :binary-content)))
+ (when (not data)
+ (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
+ ;; 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.
+ (set-buffer-multibyte nil)
+ (let ((coding-system-for-read 'no-conversion))
+ (apply #'call-process notmuch-command nil '(t nil) nil args)
+ (setq data (buffer-string)))))
+ (when cache
+ ;; Cheat. part is non-nil, and `plist-put' always modifies
+ ;; the list in place if it's non-nil.
+ (plist-put part :binary-content data)))
+ data))
+
+(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. It is an error to use this for
+non-text/* parts.
+
+If CACHE is non-nil, the content of this part will be saved in
+MSG (if it isn't already)."
+ (let ((content (plist-get part :content)))
+ (when (not content)
+ ;; Use show --format=sexp to fetch decoded content
+ (let* ((args `("show" "--format=sexp" "--include-html"
+ ,(format "--part=%s" (plist-get part :id))
+ ,@(when process-crypto '("--decrypt"))
+ ,(notmuch-id-to-query (plist-get msg :id))))
+ (npart (apply #'notmuch-call-notmuch-sexp args)))
+ (setq content (plist-get npart :content))
+ (when (not content)
+ (error "Internal error: No :content from %S" args)))
+ (when cache
+ (plist-put part :content content)))
+ content))
+
+;; 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
+;; part with images in it (demonstrated in 24.1 and 24.2 on Debian and
+;; Fedora 17, though unreproducable in other configurations).
+;; `mm-shr' references the variable `gnus-inhibit-images' without
+;; first loading gnus-art, which defines it, resulting in a
+;; void-variable error. Hence, we advise `mm-shr' to ensure gnus-art
+;; is loaded.
+(if (>= emacs-major-version 24)
+ (defadvice mm-shr (before load-gnus-arts activate)
+ (require 'gnus-art nil t)
+ (ad-disable-advice 'mm-shr 'before 'load-gnus-arts)
+ (ad-activate 'mm-shr)))
+
+(defun notmuch-mm-display-part-inline (msg part content-type process-crypto)
+ "Use the mm-decode/mm-view functions to display a part in the
+current buffer, if possible."
+ (let ((display-buffer (current-buffer)))
+ (with-temp-buffer
+ ;; 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)
+ (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)
+ t))))))
+
+;; Converts a plist of headers to an alist of headers. The input plist should
+;; have symbols of the form :Header as keys, and the resulting alist will have
+;; symbols of the form 'Header as keys.
+(defun notmuch-headers-plist-to-alist (plist)
+ (loop for (key value . rest) on plist by #'cddr
+ collect (cons (intern (substring (symbol-name key) 1)) value)))
+
+(defun notmuch-face-ensure-list-form (face)
+ "Return FACE in face list form.
+
+If FACE is already a face list, it will be returned as-is. If
+FACE is a face name or face plist, it will be returned as a
+single element face list."
+ (if (and (listp face) (not (keywordp (car face))))
+ face
+ (list face)))
+
+(defun notmuch-apply-face (object face &optional below start end)
+ "Combine FACE into the 'face text property of OBJECT between START and END.
+
+This function combines FACE with any existing faces between START
+and END in OBJECT. Attributes specified by FACE take precedence
+over existing attributes unless BELOW is non-nil.
+
+OBJECT may be a string, a buffer, or nil (which means the current
+buffer). If object is a string, START and END are 0-based;
+otherwise they are buffer positions (integers or markers). FACE
+must be a face name (a symbol or string), a property list of face
+attributes, or a list of these. If START and/or END are omitted,
+they default to the beginning/end of OBJECT. For convenience
+when applied to strings, this returns OBJECT."
+
+ ;; A face property can have three forms: a face name (a string or
+ ;; symbol), a property list, or a list of these two forms. In the
+ ;; list case, the faces will be combined, with the earlier faces
+ ;; taking precedent. Here we canonicalize everything to list form
+ ;; to make it easy to combine.
+ (let ((pos (cond (start start)
+ ((stringp object) 0)
+ (t 1)))
+ (end (cond (end end)
+ ((stringp object) (length object))
+ (t (1+ (buffer-size object)))))
+ (face-list (notmuch-face-ensure-list-form face)))
+ (while (< pos end)
+ (let* ((cur (get-text-property pos 'face object))
+ (cur-list (notmuch-face-ensure-list-form cur))
+ (new (cond ((null cur-list) face)
+ (below (append cur-list face-list))
+ (t (append face-list cur-list))))
+ (next (next-single-property-change pos 'face object end)))
+ (put-text-property pos next 'face new object)
+ (setq pos next))))
+ object)
+
+(defun notmuch-map-text-property (start end prop func &optional object)
+ "Transform text property PROP using FUNC.
+
+Applies FUNC to each distinct value of the text property PROP
+between START and END of OBJECT, setting PROP to the value
+returned by FUNC."
+ (while (< start end)
+ (let ((value (get-text-property start prop object))
+ (next (next-single-property-change start prop object end)))
+ (put-text-property start next prop (funcall func value) object)
+ (setq start next))))
+
+(defun notmuch-logged-error (msg &optional extra)
+ "Log MSG and EXTRA to *Notmuch errors* and signal MSG.
+
+This logs MSG and EXTRA to the *Notmuch errors* buffer and
+signals MSG as an error. If EXTRA is non-nil, text referring the
+user to the *Notmuch errors* buffer will be appended to the
+signaled error. This function does not return."
+
+ (with-current-buffer (get-buffer-create "*Notmuch errors*")
+ (goto-char (point-max))
+ (unless (bobp)
+ (newline))
+ (save-excursion
+ (insert "[" (current-time-string) "]\n" msg)
+ (unless (bolp)
+ (newline))
+ (when extra
+ (insert extra)
+ (unless (bolp)
+ (newline)))))
+ (error "%s" (concat msg (when extra
+ " (see *Notmuch errors* for more details)"))))
+
+(defun notmuch-check-async-exit-status (proc msg &optional command err-file)
+ "If PROC exited abnormally, pop up an error buffer and signal an error.
+
+This is a wrapper around `notmuch-check-exit-status' for
+asynchronous process sentinels. PROC and MSG must be the
+arguments passed to the sentinel. COMMAND and ERR-FILE, if
+provided, are passed to `notmuch-check-exit-status'. If COMMAND
+is not provided, it is taken from `process-command'."
+ (let ((exit-status
+ (case (process-status proc)
+ ((exit) (process-exit-status proc))
+ ((signal) msg))))
+ (when exit-status
+ (notmuch-check-exit-status exit-status (or command (process-command proc))
+ nil err-file))))
+
+(defun notmuch-check-exit-status (exit-status command &optional output err-file)
+ "If EXIT-STATUS is non-zero, pop up an error buffer and signal an error.
+
+If EXIT-STATUS is non-zero, pop up a notmuch error buffer
+describing the error and signal an Elisp error. EXIT-STATUS must
+be a number indicating the exit status code of a process or a
+string describing the signal that terminated the process (such as
+returned by `call-process'). COMMAND must be a list giving the
+command and its arguments. OUTPUT, if provided, is a string
+giving the output of command. ERR-FILE, if provided, is the name
+of a file containing the error output of command. OUTPUT and the
+contents of ERR-FILE will be included in the error message."
+
+ (cond
+ ((eq exit-status 0) t)
+ ((eq exit-status 20)
+ (notmuch-logged-error "notmuch CLI version mismatch
+Emacs requested an older output format than supported by the notmuch CLI.
+You may need to restart Emacs or upgrade your notmuch Emacs package."))
+ ((eq exit-status 21)
+ (notmuch-logged-error "notmuch CLI version mismatch
+Emacs requested a newer output format than supported by the notmuch CLI.
+You may need to restart Emacs or upgrade your notmuch package."))
+ (t
+ (let* ((err (when err-file
+ (with-temp-buffer
+ (insert-file-contents err-file)
+ (unless (eobp)
+ (buffer-string)))))
+ (extra
+ (concat
+ "command: " (mapconcat #'shell-quote-argument command " ") "\n"
+ (if (integerp exit-status)
+ (format "exit status: %s\n" exit-status)
+ (format "exit signal: %s\n" exit-status))
+ (when err
+ (concat "stderr:\n" err))
+ (when output
+ (concat "stdout:\n" output)))))
+ (if err
+ ;; We have an error message straight from the CLI.
+ (notmuch-logged-error
+ (replace-regexp-in-string "[ \n\r\t\f]*\\'" "" err) extra)
+ ;; We only have combined output from the CLI; don't inundate
+ ;; the user with it. Mimic `process-lines'.
+ (notmuch-logged-error (format "%s exited with status %s"
+ (car command) exit-status)
+ extra))
+ ;; `notmuch-logged-error' does not return.
+ ))))
+
+(defun notmuch-call-notmuch--helper (destination args)
+ "Helper for synchronous notmuch invocation commands.
+
+This wraps `call-process'. DESTINATION has the same meaning as
+for `call-process'. ARGS is as described for
+`notmuch-call-notmuch-process'."
+
+ (let (stdin-string)
+ (while (keywordp (car args))
+ (case (car args)
+ (:stdin-string (setq stdin-string (cadr args)
+ args (cddr args)))
+ (otherwise
+ (error "Unknown keyword argument: %s" (car args)))))
+ (if (null stdin-string)
+ (apply #'call-process notmuch-command nil destination nil args)
+ (insert stdin-string)
+ (apply #'call-process-region (point-min) (point-max)
+ notmuch-command t destination nil args))))
+
+(defun notmuch-call-notmuch-process (&rest args)
+ "Synchronously invoke `notmuch-command' with ARGS.
+
+The caller may provide keyword arguments before ARGS. Currently
+supported keyword arguments are:
+
+ :stdin-string STRING - Write STRING to stdin
+
+If notmuch exits with a non-zero status, output from the process
+will appear in a buffer named \"*Notmuch errors*\" and an error
+will be signaled."
+ (with-temp-buffer
+ (let ((status (notmuch-call-notmuch--helper t args)))
+ (notmuch-check-exit-status status (cons notmuch-command args)
+ (buffer-string)))))
+
+(defun notmuch-call-notmuch-sexp (&rest args)
+ "Invoke `notmuch-command' with ARGS and return the parsed S-exp output.
+
+This is equivalent to `notmuch-call-notmuch-process', but parses
+notmuch's output as an S-expression and returns the parsed value.
+Like `notmuch-call-notmuch-process', if notmuch exits with a
+non-zero status, this will report its output and signal an
+error."
+
+ (with-temp-buffer
+ (let ((err-file (make-temp-file "nmerr")))
+ (unwind-protect
+ (let ((status (notmuch-call-notmuch--helper (list t err-file) args)))
+ (notmuch-check-exit-status status (cons notmuch-command args)
+ (buffer-string) err-file)
+ (goto-char (point-min))
+ (read (current-buffer)))
+ (delete-file err-file)))))
+
+(defun notmuch-start-notmuch (name buffer sentinel &rest args)
+ "Start and return an asynchronous notmuch command.
+
+This starts and returns an asynchronous process running
+`notmuch-command' with ARGS. The exit status is checked via
+`notmuch-check-async-exit-status'. Output written to stderr is
+redirected and displayed when the process exits (even if the
+process exits successfully). NAME and BUFFER are the same as in
+`start-process'. SENTINEL is a process sentinel function to call
+when the process exits, or nil for none. The caller must *not*
+invoke `set-process-sentinel' directly on the returned process,
+as that will interfere with the handling of stderr and the exit
+status."
+
+ ;; There is no way (as of Emacs 24.3) to capture stdout and stderr
+ ;; separately for asynchronous processes, or even to redirect stderr
+ ;; to a file, so we use a trivial shell wrapper to send stderr to a
+ ;; temporary file and clean things up in the sentinel.
+ (let* ((err-file (make-temp-file "nmerr"))
+ ;; Use a pipe
+ (process-connection-type nil)
+ ;; Find notmuch using Emacs' `exec-path'
+ (command (or (executable-find notmuch-command)
+ (error "command not found: %s" notmuch-command)))
+ (proc (apply #'start-process name buffer
+ "/bin/sh" "-c"
+ "exec 2>\"$1\"; shift; exec \"$0\" \"$@\""
+ command err-file args)))
+ (process-put proc 'err-file err-file)
+ (process-put proc 'sub-sentinel sentinel)
+ (process-put proc 'real-command (cons notmuch-command args))
+ (set-process-sentinel proc #'notmuch-start-notmuch-sentinel)
+ proc))
+
+(defun notmuch-start-notmuch-sentinel (proc event)
+ (let ((err-file (process-get proc 'err-file))
+ (sub-sentinel (process-get proc 'sub-sentinel))
+ (real-command (process-get proc 'real-command)))
+ (condition-case err
+ (progn
+ ;; Invoke the sub-sentinel, if any
+ (when sub-sentinel
+ (funcall sub-sentinel proc event))
+ ;; Check the exit status. This will signal an error if the
+ ;; exit status is non-zero. Don't do this if the process
+ ;; buffer is dead since that means Emacs killed the process
+ ;; and there's no point in telling the user that (but we
+ ;; still check for and report stderr output below).
+ (when (buffer-live-p (process-buffer proc))
+ (notmuch-check-async-exit-status proc event real-command err-file))
+ ;; If that didn't signal an error, then any error output was
+ ;; really warning output. Show warnings, if any.
+ (let ((warnings
+ (with-temp-buffer
+ (unless (= (second (insert-file-contents err-file)) 0)
+ (end-of-line)
+ ;; Show first line; stuff remaining lines in the
+ ;; errors buffer.
+ (let ((l1 (buffer-substring (point-min) (point))))
+ (skip-chars-forward "\n")
+ (cons l1 (unless (eobp)
+ (buffer-substring (point) (point-max)))))))))
+ (when warnings
+ (notmuch-logged-error (car warnings) (cdr warnings)))))
+ (error
+ ;; Emacs behaves strangely if an error escapes from a sentinel,
+ ;; so turn errors into messages.
+ (message "%s" (error-message-string err))))
+ (ignore-errors (delete-file err-file))))
;; This variable is used only buffer local, but it needs to be
;; declared globally first to avoid compiler warnings.
(provide 'notmuch-lib)
+;; Local Variables:
+;; byte-compile-warnings: (not cl-functions)
+;; End:
projects / notmuch / blobdiff