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flymake-eslint

Flymake backend for Javascript using eslint

MELPA

Installation

  1. Make sure eslint is installed and present on your emacs exec-path. For Linux systems exec-path usually equals your $PATH environment variable; for other systems, you're on your own.
  2. Install:
  • from MELPA: M-x package-install [RET] flymake-eslint [RET]
  • manually: download and place inside ~/.emacs.d/lisp then edit ~/.emacs or equivalent:
(add-to-list 'load-path "~/.emacs.d/lisp")
(require "flymake-eslint.el")
  1. Enable:
(add-hook 'web-mode-hook ; or whatever the mode-hook is for your mode of choice
  (lambda ()
    (flymake-eslint-enable)))

Customization

useful variables are members of the flymake-eslint group and can be viewed and modified with the command M-x customize-group [RET] flymake-eslint [RET].

(defcustom flymake-eslint-executable-name "eslint"
  "Name of executable to run when checker is called.  Must be present in variable `exec-path'."
  :type 'string
  :group 'flymake-eslint)

(defcustom flymake-eslint-executable-args nil
  "Extra arguments to pass to eslint."
  :type 'string
  :group 'flymake-eslint)

(defcustom flymake-eslint-show-rule-name t
  "Set to t to append rule name to end of warning or error message, nil otherwise."
  :type 'boolean
  :group 'flymake-eslint)
  
(defcustom flymake-eslint-defer-binary-check nil
  "Set to t to bypass the initial check which ensures eslint is present.

Useful when the value of variable `exec-path' is set dynamically and the location of eslint might not be known ahead of time."
  :type 'boolean
  :group 'flymake-eslint)

(defcustom flymake-eslint-project-root nil
  "Buffer-local.  Set to a filesystem path to use that path as the current working directory of the linting process."
  :type 'string
  :group 'flymake-eslint)
  
(defcustom flymake-eslint-prefer-json-diagnostics nil
  "Try to use the JSON diagnostic format when runnin ESLint.
This gives more accurate diagnostics but requires having an Emacs
version with JSON support."
  :type 'boolean
  :group 'flymake-eslint)

Bugs

yes

See Also

flymake-stylelint

License

MIT