144 lines
4.9 KiB
EmacsLisp
144 lines
4.9 KiB
EmacsLisp
;;; flymakemsg.el --- Show flymake compile errors in echo area
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;;
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;; Author: Lennart Borgman (lennart O borgman A gmail O com)
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;; Created: 2009-11-21 Sat
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;; Version: 0.1
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;; Last-Updated: 2009-11-21 Sat
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;; URL:
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;; Keywords:
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;; Compatibility:
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;;
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;; Features that might be required by this library:
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;;
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;; `backquote', `bytecomp'.
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Commentary:
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;;
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;; Show flymake error messages in minibuffer when point is on a
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;; flymake error overlay.
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;;
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;; To use it just load this file. Put this in .emacs:
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;;
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;; (require 'flymakemsg)
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;;
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;; This file run `defadvice' on some functions in `flymake-mode'.
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;; This code started from an idea in a paste.
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;;
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;; Note: This code breaks Emacs conventions since it does the
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;; defadvising when you just loads this file.
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Change log:
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;;
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 3, or
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;; (at your option) any later version.
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;;
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;; This program is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;;
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;; You should have received a copy of the GNU General Public License
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;; along with this program; see the file COPYING. If not, write to
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;; the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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;; Floor, Boston, MA 02110-1301, USA.
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;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;
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;;; Code:
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(eval-when-compile (require 'flymake))
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(defun flymakemsg-show-err-at-point ()
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"If point is on a flymake error, show it in echo area.
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Protected to run in timers and hooks."
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(condition-case err
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(flymakemsg-show-err-at-point-1)
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(error (message "%s" err))))
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(defvar flymakemsg-last-errovl nil)
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(defun flymakemsg-show-err-at-point-1 ()
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"If point is on a flymake error, show it in echo area."
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(interactive)
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(when flymake-mode
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(let ((flyovl (flymakemsg-get-errovl (point))))
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(unless (eq flyovl flymakemsg-last-errovl)
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(setq flymakemsg-last-errovl flyovl)
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(when flyovl
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(message "%s" (propertize
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(overlay-get flyovl 'help-echo)
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'face 'flymake-errline)))))))
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(defun flymakemsg-get-errovl (POS)
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"Get flymake error overlay at POS."
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(catch 'errovl
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(dolist (ovl (overlays-at POS))
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(when (eq 'flymake-errline (overlay-get ovl 'face))
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(throw 'errovl ovl)))))
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(defadvice flymake-mode (after
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flymakemsg-ad-flymake-mode
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activate compile)
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"Turn on showing of flymake errors then point is on them.
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This shows the error in the echo area."
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(if flymake-mode
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nil ;;(add-hook 'post-command-hook 'flymakemsg-post-command t t)
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(remove-hook 'post-command-hook 'flymakemsg-post-command t)))
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(defadvice flymake-log (after
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flymakemsg-ad-flymake-log
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activate compile)
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"Display error on current line if any."
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;;(message "flymake-log defadvice called")
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(if (not flymake-err-info)
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(remove-hook 'post-command-hook 'flymakemsg-post-command t)
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(add-hook 'post-command-hook 'flymakemsg-post-command t t)
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;; Wait, because there is another message first.
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(flymakemsg-start-msg-timer 3.0)))
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(defun flymakemsg-post-command ()
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;; Wait to not disturb to much.
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(flymakemsg-start-msg-timer 0.2))
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(defvar flymakemsg-msg-timer nil)
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(defun flymakemsg-cancel-msg-timer ()
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(when (timerp flymakemsg-msg-timer)
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(cancel-timer flymakemsg-msg-timer)))
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(defun flymakemsg-start-msg-timer (delay)
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(flymakemsg-cancel-msg-timer)
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(run-with-idle-timer delay nil 'flymakemsg-show-err-at-point))
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;;; I have no idea why it was done the way below. It was in the paste.
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;;; It seems very unnecessary but I keep it for now.
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;;
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;; (defun fly-pyflake-determine-message (err)
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;; "pyflake is flakey if it has compile problems, this adjusts the
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;; message to display, so there is one ;)"
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;; (cond ((not (or (eq major-mode 'Python) (eq major-mode 'python-mode) t)))
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;; ((null (flymake-ler-file err))
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;; ;; normal message do your thing
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;; (flymake-ler-text err))
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;; (t ;; could not compile err
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;; (format "compile error, problem on line %s" (flymake-ler-line err)))))
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;; (let ((line-no (line-number-at-pos)))
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;; (dolist (elem flymake-err-info)
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;; (if (eq (car elem) line-no)
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;; (let ((err (car (second elem))))
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;; (message "%s" (fly-pyflake-determine-message err))))))
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(provide 'flymakemsg)
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;; flymakemsg.el ends here
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