filter.js

// This file is used by the AMD web builder service.
// When the micro modules are used the version is pulled as a text module.
// When building with r.js we need to replace the version token by its value since we strip the AMD layer with the pragma.

var fs = require( 'fs' ),
	path = require( 'path' ),
	buildDir = __dirname,
	copyrightVersionRegExp = /@VERSION/g,
	apiVersionRegExp = /__version__/g,
	copyrightBaseName = "../LICENSE-INFO",
	copyrightRegFile = copyrightBaseName + ".txt",
	copyrightMinFile = copyrightBaseName + ".min.txt";

module.exports = function ( contents, ext, callback ) {
	fs.readFile( path.join( buildDir, "../version.txt" ), "utf8",
		function( err, version ) {
			var copyrightFile;
			if ( err ) {
				callback( err );
			} else {
				version = version.trim();

				if ( /^\.min/.test( ext ) ) {
					copyrightFile = copyrightMinFile;
				} else {
					copyrightFile = copyrightRegFile;
				}
				fs.readFile( path.join( buildDir, copyrightFile ), "utf8",
					function( err, copyright ) {
						if ( err ) {
							callback( err );
						} else {
							contents = copyright.replace( copyrightVersionRegExp, version ) + "\n" + contents;
							contents = contents.replace( apiVersionRegExp, '"' + version + '"' );

							callback( null, contents );
						}
					}
				)
			}
		}
	)
};