doomemacs/modules/lang/javascript/autoload.el
Henrik Lissner 7d3ffdff06
Remove third line in section headers
This is truly important stuff. We've saved many lives with this update.
2018-09-09 09:58:19 -04:00

120 lines
4.5 KiB
EmacsLisp

;;; lang/javascript/autoload.el -*- lexical-binding: t; -*-
(defvar +javascript-npm-conf (make-hash-table :test 'equal))
;;;###autoload
(defun +javascript-npm-conf (&optional project-root refresh-p)
"Retrieves an alist of this project's 'package.json'. If REFRESH-P is non-nil
ignore the cache."
(let ((project-root (or project-root (doom-project-root))))
(or (and (not refresh-p)
(gethash project-root +javascript-npm-conf))
(let ((package-file (expand-file-name "package.json" project-root)))
(when-let* ((json (and (file-exists-p package-file)
(require 'json)
(json-read-file package-file))))
(puthash project-root json +javascript-npm-conf))))))
;;;###autoload
(defun +javascript-npm-dep-p (packages &optional project-root refresh-p)
(when-let* ((data (and (bound-and-true-p +javascript-npm-mode)
(+javascript-npm-conf project-root refresh-p))))
(let ((deps (append (cdr (assq 'dependencies data))
(cdr (assq 'devDependencies data)))))
(cond ((listp packages)
(funcall (if (eq (car packages) 'and)
#'cl-every
#'cl-some)
(lambda (pkg) (assq pkg deps))
(if (listp packages) packages (list packages))))
((symbolp packages)
(assq packages deps))
(t (error "Expected a package symbol or list, got %s" packages))))))
;;
;; Commands
;;;###autoload
(defun +javascript/repl ()
"Open a Javascript REPL. Meaning either `skewer-repl', if any of the
skewer-*-mode's are enabled, or `nodejs-repl' otherwise."
(interactive)
(call-interactively
(if (and (featurep 'skewer-mode)
(or skewer-mode skewer-css-mode skewer-html-mode))
#'skewer-repl
#'nodejs-repl)))
;;;###autoload
(defun +javascript/skewer-this-buffer ()
"Toggle a globalized skewer-mode, attaching an external browser (once),
initiating an internal httpd server (once) and enabling the appropriate
skewer-mode for the current buffer.
Run this for any buffer you want to skewer."
(interactive)
(when (bound-and-true-p impatient-mode)
(error "Skewer-mode isn't compatible with impatient mode"))
(require 'skewer-mode)
(unless (process-status "httpd")
(run-skewer))
(unless (and skewer-mode skewer-css-mode skewer-html-mode)
(pcase major-mode
((or 'css-mode 'scss-mode 'less-css-mode) (skewer-css-mode +1))
((or 'web-mode 'html-mode) (skewer-html-mode +1))
('js2-mode (skewer-mode +1))
(_ (error "Invalid mode %s" major-mode)))))
;;;###autoload
(defun +javascript/skewer-cleanup ()
"Disable skewer-mode globally and disable the httpd server."
(interactive)
(when (process-status "httpd")
(httpd-stop))
(dolist (buf (buffer-list))
(with-current-buffer buf
(if skewer-mode (skewer-mode -1))
(if skewer-css-mode (skewer-css-mode -1))
(if skewer-html-mode (skewer-html-mode -1)))))
;;
;; Hooks
;;;###autoload
(defun +javascript|add-node-modules-path ()
"Add current project's `node_modules/.bin` to `exec-path', so js tools
prioritize project-local packages over global ones."
(make-local-variable 'exec-path)
(cl-pushnew (expand-file-name "node_modules/.bin/"
(or (locate-dominating-file
(or (buffer-file-name) default-directory)
"node_modules")
(doom-project-root)))
exec-path :test #'string=))
;;;###autoload
(defun +javascript|cleanup-tide-processes ()
"Clean up dangling tsserver processes if there are no more buffers with
`tide-mode' active that belong to that server's project."
(when tide-mode
(unless (cl-loop with project-name = (tide-project-name)
for buf in (delq (current-buffer) (buffer-list))
if (and (buffer-local-value 'tide-mode buf)
(with-current-buffer buf
(string= (tide-project-name) project-name)))
return buf)
(kill-process (tide-current-server)))))
;;
;; Advice
;;;###autoload
(defun +javascript*tide-project-root ()
"Resolve to `doom-project-root' if `tide-project-root' fails."
(or tide-project-root
(or (locate-dominating-file default-directory "tsconfig.json")
(locate-dominating-file default-directory "jsconfig.json"))
(doom-project-root)))