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Add recursion search 'node_modules/.bin' through directory tree #22

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Add recursion search 'node_modules/.bin' through directory tree #22

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42 changes: 25 additions & 17 deletions add-node-modules-path.el
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Original file line number Diff line number Diff line change
Expand Up @@ -12,9 +12,10 @@

;;; Commentary:
;;
;; This file provides `add-node-modules-path', which runs `npm bin` and
;; and adds the path to the buffer local `exec-path'.
;; This allows Emacs to find project based installs of e.g. eslint.
;; This file provides `add-node-modules-path', which runs `npm bin`
;; recursively through up directory tree and and adds the path to the
;; buffer local `exec-path'. This allows Emacs to find project based
;; installs of e.g. eslint.
;;
;; Usage:
;; M-x add-node-modules-path
Expand All @@ -38,10 +39,15 @@
:group 'environment)

;;;###autoload
(defcustom add-node-modules-path-command "npm bin"
(defcustom add-node-modules-path-command-bin "npm bin"
"Command to find the bin path."
:type 'string)

;;;###autoload
(defcustom add-node-modules-path-command-root "npm root"
"Command to find the root path."
:type 'string)

;;;###autoload
(defcustom add-node-modules-path-debug nil
"Enable verbose output when non nil."
Expand All @@ -54,22 +60,24 @@
If `npm` command fails, it does nothing."
(interactive)

(let* ((res (s-chomp (shell-command-to-string add-node-modules-path-command)))
(exists (file-exists-p res))
)
(let* ((root-directory (s-chomp (shell-command-to-string add-node-modules-path-command-root)))
(bin-directory (s-chomp (shell-command-to-string add-node-modules-path-command-bin)))
(exists (file-exists-p bin-directory))
(isRoot (string= (directory-file-name (file-name-directory root-directory)) "/")))
(cond
(exists
(make-local-variable 'exec-path)
(add-to-list 'exec-path res)
(when add-node-modules-path-debug
(message "Added to `exec-path`: %s" res))
)
((not isRoot)
(unless (local-variable-p 'exec-path)
(make-local-variable 'exec-path))
(when exists
(add-to-list 'exec-path bin-directory)
(when add-node-modules-path-debug
(message "Added to `exec-path`: %s" bin-directory)))
(cd (concat root-directory "/../.."))
(add-node-modules-path))
(t
(cd (file-name-directory (buffer-file-name)))
(when add-node-modules-path-debug
(message "Failed to run `%s':\n %s" add-node-modules-path-command res))
))
)
)
(message "Found root directory"))))))

(provide 'add-node-modules-path)

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