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;;; lsp-ui-flycheck.el --- Flycheck support for lsp-mode -*- lexical-binding: t; -*-
;; Copyright (C) 2017 fmdkdd
;; URL: https://github.com/emacs-lsp/lsp-ui
;; Keywords: languagues, tools
;; Version: 6.2
;; This program is free software: you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
;; GNU General Public License for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program. If not, see <http://www.gnu.org/licenses/>.
;;; Commentary:
;; Flycheck integration for lsp-mode.
;;; Code:
(require 'flycheck nil 'noerror) ; Temporary solution, see #514
(require 'pcase)
(require 'dash)
(require 'lsp-protocol)
(require 'lsp-mode)
(defgroup lsp-ui-flycheck nil
"The LSP extension to display syntax checking."
:group 'tools
:group 'convenience
:group 'lsp-ui
:link '(custom-manual "(lsp-ui-flycheck) Top")
:link '(info-link "(lsp-ui-flycheck) Customizing"))
(defcustom lsp-ui-flycheck-list-position 'bottom
"Position where `lsp-ui-flycheck-list' will show diagnostics for the
whole workspace."
:type '(choice (const :tag "Bottom" bottom)
(const :tag "Right" right))
:group 'lsp-ui-flycheck)
(defvar-local lsp-ui-flycheck-list--buffer nil)
(defvar-local lsp-ui-flycheck--save-mode nil)
(defun lsp-ui-flycheck-list--post-command ()
(when (eobp)
(forward-line -1)))
(defun lsp-ui-flycheck-list--update (window workspace)
"Update flycheck buffer in WINDOW belonging to WORKSPACE.
Use `lsp-diagnostics' to receive diagnostics from your LSP server."
(let ((buffer-read-only nil)
(lsp--cur-workspace workspace))
(erase-buffer)
(remove-overlays)
(maphash (lambda (file diagnostic)
(when diagnostic
(overlay-put
(make-overlay (point) (point))
'after-string
(concat (propertize "\n" 'face '(:height 0.2))
(propertize (lsp-ui--workspace-path file)
'face 'dired-directory)
(propertize "\n" 'face '(:height 0.2)))))
(dolist (diag diagnostic)
(-let* (((&Diagnostic :message :severity? :source?
:range (&Range :start (&Position :line start-line))) diag)
(formatted-message (or (if source? (format "%s: %s" source? message) message) "???"))
(severity (or severity? 1))
(line (1+ start-line))
(face (cond ((= severity 1) 'error)
((= severity 2) 'warning)
(t 'success)))
(text (concat (propertize (number-to-string line) 'face face)
": "
(car (split-string formatted-message "\n")))))
(add-text-properties 0 (length text) `(diag ,diag file ,file window ,window) text)
(insert (concat text "\n")))))
(lsp-diagnostics)))
(if (= (point) 1)
(overlay-put (make-overlay 1 1)
'after-string "No diagnostic available\n")
(goto-char 1))
(lsp-ui-flycheck-list-mode))
(defun lsp-ui-flycheck-list ()
"List all the diagnostics in the whole workspace."
(interactive)
(let ((buffer (get-buffer-create "*lsp-diagnostics*"))
(workspace lsp--cur-workspace)
(window (selected-window)))
(with-current-buffer buffer
(lsp-ui-flycheck-list--update window workspace))
(add-hook 'lsp-diagnostics-updated-hook 'lsp-ui-flycheck-list--refresh nil t)
(setq lsp-ui-flycheck-list--buffer buffer)
(let ((win (display-buffer-in-side-window
buffer `((side . ,lsp-ui-flycheck-list-position) (slot . 5) (window-width . 0.20)))))
(set-window-dedicated-p win t)
(select-window win)
(fit-window-to-buffer nil nil 10))))
(defun lsp-ui-flycheck-list--refresh ()
(let ((workspace lsp--cur-workspace)
(current-window (selected-window)))
(when (and (buffer-live-p lsp-ui-flycheck-list--buffer)
(get-buffer-window lsp-ui-flycheck-list--buffer)
workspace)
(with-selected-window (get-buffer-window lsp-ui-flycheck-list--buffer)
(lsp-ui-flycheck-list--update current-window workspace)
(fit-window-to-buffer nil nil 10)))))
(defun lsp-ui-flycheck-list--open ()
(-when-let* ((diag (get-text-property (point) 'diag))
((&Diagnostic :range (&Range :start (&Position :line start-line
:character start-column))) diag)
(file (get-text-property (point) 'file))
(window (get-text-property (point) 'window))
(marker (with-current-buffer
(or (get-file-buffer file)
(find-file-noselect file))
(save-restriction
(widen)
(save-excursion
(goto-char 1)
(forward-line start-line)
(forward-char start-column)
(point-marker))))))
(set-window-buffer window (marker-buffer marker) t)
(with-selected-window window
(goto-char marker)
(recenter)
(pulse-momentary-highlight-one-line (marker-position marker) 'next-error))
window))
(defun lsp-ui-flycheck-list--view ()
(interactive)
(lsp-ui-flycheck-list--open))
(defun lsp-ui-flycheck-list--visit ()
(interactive)
(select-window (lsp-ui-flycheck-list--open)))
(defun lsp-ui-flycheck-list--quit ()
(interactive)
(kill-buffer))
(defvar lsp-ui-flycheck-list-mode-map
(let ((map (make-sparse-keymap)))
(define-key map (kbd "q") 'lsp-ui-flycheck-list--quit)
(define-key map (kbd "<return>") 'lsp-ui-flycheck-list--view)
(define-key map (kbd "<M-return>") 'lsp-ui-flycheck-list--visit)
map)
"Keymap for ‘lsp-ui-flycheck-list-mode’.")
(define-derived-mode lsp-ui-flycheck-list-mode special-mode "lsp-ui-flycheck-list"
"Mode showing flycheck diagnostics for the whole workspace."
(setq truncate-lines t)
(setq mode-line-format nil)
(add-hook 'post-command-hook 'lsp-ui-flycheck-list--post-command nil t))
(declare-function lsp-ui--workspace-path "lsp-ui" (path))
(provide 'lsp-ui-flycheck)
;;; lsp-ui-flycheck.el ends here
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