doomemacs/modules/lang/javascript/autoload.el
2017-03-02 18:28:46 -05:00

35 lines
1.3 KiB
EmacsLisp

;;; lang/javascript/autoload.el
;;;###autoload
(defun +javascript/install ()
"Installs NodeJS and tern."
(interactive)
(pcase (doom-system-os)
('arch
(unless (and (executable-find "node")
(executable-find "npm"))
(doom-sudo "pacman --needed --noconfirm -S nodejs npm")))
('debian) ;; TODO
('macos
(unless (executable-find "node")
(doom-sh "brew install node")))
(_ (error "Not a supported OS")))
(unless (executable-find "node")
(error "node isn't installed, run `+javascript/install' again"))
(unless (executable-find "tern")
(sh "npm -g install tern")))
(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)
(json-read-file package-file)))
(puthash project-root json +javascript-npm-conf))))))