81 lines
2.8 KiB
EmacsLisp
81 lines
2.8 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) 2012-2022 Free Software Foundation, Inc.
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;; Author: John Wiegley <johnw@newartisans.com>
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;; Maintainer: John Wiegley <johnw@newartisans.com>
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;; This file is part of GNU Emacs.
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;; GNU Emacs is free software: you can redistribute it and/or modify
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;; it under the terms of the GNU General Public License as published by
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;; the Free Software Foundation, either version 3 of the License, or
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;; (at your option) any later version.
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;; GNU Emacs is distributed in the hope that it will be useful,
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;; but WITHOUT ANY WARRANTY; without even the implied warranty of
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;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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;; GNU 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. If not, see <https://www.gnu.org/licenses/>.
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;;; Commentary:
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;; Provides the command `M-x use-package-lint'.
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;;
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;; See the `use-package' info manual for more information.
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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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