85 lines
3 KiB
EmacsLisp
85 lines
3 KiB
EmacsLisp
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;;; use-package-lint.el --- Attempt to find errors in use-package declarations -*- lexical-binding: t; -*-
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;; Copyright (C) 2012-2017 John Wiegley
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;; Author: John Wiegley <johnw@newartisans.com>
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;; Maintainer: John Wiegley <johnw@newartisans.com>
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;; Created: 17 Jun 2012
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;; Modified: 3 Dec 2017
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;; Version: 1.0
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;; Package-Requires: ((emacs "24.3") (use-package "2.4"))
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;; Keywords: dotemacs startup speed config package
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;; URL: https://github.com/jwiegley/use-package
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;; This program is free software; you can redistribute it and/or
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;; modify it under the terms of the GNU General Public License as
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;; published by the Free Software Foundation; either version 3, or (at
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;; your option) any later version.
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;; This program is distributed in the hope that it will be useful, but
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;; WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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;; General Public License for more details.
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;; You should have received a copy of the GNU General Public License
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;; along with GNU Emacs; see the file COPYING. If not, write to the
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;; Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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;; Boston, MA 02111-1307, USA.
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;;; Commentary:
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;; Provides the command `M-x use-package-lint'.
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;;; Code:
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(require 'cl-lib)
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(require 'use-package-core)
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(defun use-package-lint-declaration (name plist)
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(dolist (path (plist-get plist :load-path))
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(unless (file-exists-p path)
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(display-warning
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'use-package
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(format "%s :load-path does not exist: %s"
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name path) :error)))
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(unless (or (plist-member plist :disabled)
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(plist-get plist :no-require)
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(locate-library (use-package-as-string name) nil
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(plist-get plist :load-path)))
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(display-warning
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'use-package
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(format "%s module cannot be located" name) :error))
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;; (dolist (command (plist-get plist :commands))
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;; (unless (string= (find-lisp-object-file-name command nil)
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;; (locate-library (use-package-as-string name) nil
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;; (plist-get plist :load-path)))
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;; (display-warning
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;; 'use-package
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;; (format "%s :command is from different path: %s"
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;; name (symbol-name command)) :error)))
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)
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;;;###autoload
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(defun use-package-lint ()
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"Check for errors in use-package declarations.
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For example, if the module's `:if' condition is met, but even
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with the specified `:load-path' the module cannot be found."
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(interactive)
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(save-excursion
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(goto-char (point-min))
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(let ((re (eval use-package-form-regexp-eval)))
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(while (re-search-forward re nil t)
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(goto-char (match-beginning 0))
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(let ((decl (read (current-buffer))))
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(when (eq (car decl) 'use-package)
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(use-package-lint-declaration
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(use-package-as-string (cadr decl))
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(use-package-normalize-keywords
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(cadr decl) (cddr decl)))))))))
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(provide 'use-package-lint)
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;;; use-package-lint.el ends here
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