33 lines
1.4 KiB
EmacsLisp
33 lines
1.4 KiB
EmacsLisp
;; Copyright (c) 2014 Microsoft Corporation. All rights reserved.
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;; Released under Apache 2.0 license as described in the file LICENSE.
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;;
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;; Author: Soonho Kong
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;;
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(defun lean-mode-require-package (pkg)
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"Check whether pkg is available or not."
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(unless (featurep pkg)
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(if (not (require pkg (symbol-name pkg) t))
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(error "lean-mode: required package '%s' is not found." (symbol-name pkg))
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(message "lean-mode: package %S loaded." pkg))))
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(defun lean-mode-check-package (pkg)
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"Check whether pkg is available or not."
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(unless (featurep pkg)
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(if (not (require pkg (symbol-name pkg) t))
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(message "lean-mode: optional package '%s' is not found." (symbol-name pkg))
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(message "lean-mode: optional package %S loaded." pkg))))
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(defun lean-mode-check-requirements ()
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"Check lean-mode requirements"
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(if (not (>= emacs-major-version 24))
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(error "Emacs version >= 24 is required to use lean-mode"))
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(lean-mode-check-package 'package)
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(lean-mode-check-package 'dash)
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(let ((required-packages '(cl-lib compile dash dash-functional f flymake s))
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(optional-packages '(flycheck whitespace-cleanup-mode fill-column-indicator
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lua-mode mmm-mode)))
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(-each required-packages 'lean-mode-require-package)
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(-each optional-packages 'lean-mode-check-package)))
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(lean-mode-check-requirements)
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(provide 'lean-require)
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