(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!")))
;;
(put-text-property pos next 'face (cons face cur))
(setq pos 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)
+ "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."
+ (let ((exit-status
+ (case (process-status proc)
+ ((exit) (process-exit-status proc))
+ ((signal) msg))))
+ (when exit-status
+ (notmuch-check-exit-status exit-status (process-command proc)))))
+
+(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 "\\s $" "" 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-json (&rest args)
+ "Invoke `notmuch-command' with `args' and return the parsed JSON output.
+
+The returned output will represent objects using property lists
+and arrays as lists. If notmuch exits with a non-zero status,
+this will pop up a buffer containing notmuch's output and signal
+an error."
+
+ (with-temp-buffer
+ (let ((err-file (make-temp-file "nmerr")))
+ (unwind-protect
+ (let ((status (apply #'call-process
+ notmuch-command nil (list t err-file) nil args)))
+ (notmuch-check-exit-status status (cons notmuch-command args)
+ (buffer-string) err-file)
+ (goto-char (point-min))
+ (let ((json-object-type 'plist)
+ (json-array-type 'list)
+ (json-false 'nil))
+ (json-read)))
+ (delete-file err-file)))))
+
;; Compatibility functions for versions of emacs before emacs 23.
;;
;; Both functions here were copied from emacs 23 with the following copyright:
(with-current-buffer (notmuch-json-buffer jp)
;; Disallow terminators
(setf (notmuch-json-allow-term jp) nil)
- (or (notmuch-json-scan-to-value jp)
- (if (/= (char-after) ?\[)
- (signal 'json-readtable-error (list "expected '['"))
- (forward-char)
- (push ?\] (notmuch-json-term-stack jp))
- ;; Expect a value or terminator next
- (setf (notmuch-json-next jp) 'expect-value
- (notmuch-json-allow-term jp) t)
- t))))
+ ;; Save "next" so we can restore it if there's a syntax error
+ (let ((saved-next (notmuch-json-next jp)))
+ (or (notmuch-json-scan-to-value jp)
+ (if (/= (char-after) ?\[)
+ (progn
+ (setf (notmuch-json-next jp) saved-next)
+ (signal 'json-readtable-error (list "expected '['")))
+ (forward-char)
+ (push ?\] (notmuch-json-term-stack jp))
+ ;; Expect a value or terminator next
+ (setf (notmuch-json-next jp) 'expect-value
+ (notmuch-json-allow-term jp) t)
+ t)))))
(defun notmuch-json-read (jp)
"Parse the value at point in JP's buffer.
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