RailsOnLisp/rol-assets/coffeescript.lisp

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• Hash : 160d346b
  Author : Thomas de Grivel
  Date : 2017-06-21T11:12:40
  

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• coffeescript.lisp

• ;;
  ;;  RoL-assets  -  Asset pipeline
  ;;
  ;;  Copyright 2012-2015 Thomas de Grivel <thomas@lowh.net>
  ;;
  ;;  Permission to use, copy, modify, and distribute this software for any
  ;;  purpose with or without fee is hereby granted, provided that the above
  ;;  copyright notice and this permission notice appear in all copies.
  ;;
  ;;  THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  ;;  WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  ;;  MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  ;;  ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  ;;  WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  ;;  ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  ;;  OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  ;;
  
  (in-package :RoL-assets)
  
  ;;  Coffeescript -> JS
  
  (defclass coffeescript-asset (js-asset) ())
  
  (defmethod asset-class-extensions ((class (eql 'coffeescript-asset)))
    '(.coffee))
  
  ;;  Compile
  
  (defun coffeescript (in out)
    (let ((err (make-string-output-stream)))
      (unwind-protect
           (sb-ext:run-program "coffee -cs" '()
                               :input in
                               :output out
                               :error err
                               :search t)
        (close err))))
  
  (defmethod process-asset ((asset coffeescript-asset)
                            (output stream))
    (with-input-from-file/utf-8 (in (asset-source-path asset))
      (coffeescript in output))
    (force-output output)
    (values))
  

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