jquery/build/tasks/dist.js

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module.exports = function( grunt ) {
"use strict";
var fs = require( "fs" ),
distpaths = [
"dist/jquery.js",
"dist/jquery.min.map",
"dist/jquery.min.js"
];
// Process files for distribution
grunt.registerTask( "dist", function() {
var stored, flags, paths, nonascii;
// Check for stored destination paths
// ( set in dist/.destination.json )
stored = Object.keys( grunt.config( "dst" ) );
// Allow command line input as well
flags = Object.keys( this.flags );
// Combine all output target paths
paths = [].concat( stored, flags ).filter(function( path ) {
return path !== "*";
});
// Ensure the dist files are pure ASCII
nonascii = false;
distpaths.forEach(function( filename ) {
var i, c,
text = fs.readFileSync( filename, "utf8" );
// Ensure files use only \n for line endings, not \r\n
if ( /\x0d\x0a/.test( text ) ) {
grunt.log.writeln( filename + ": Incorrect line endings (\\r\\n)" );
nonascii = true;
}
// Ensure only ASCII chars so script tags don't need a charset attribute
if ( text.length !== Buffer.byteLength( text, "utf8" ) ) {
grunt.log.writeln( filename + ": Non-ASCII characters detected:" );
for ( i = 0; i < text.length; i++ ) {
c = text.charCodeAt( i );
if ( c > 127 ) {
grunt.log.writeln( "- position " + i + ": " + c );
grunt.log.writeln( "-- " + text.substring( i - 20, i + 20 ) );
break;
}
}
nonascii = true;
}
// Modify map/min so that it points to files in the same folder;
// see https://github.com/mishoo/UglifyJS2/issues/47
if ( /\.map$/.test( filename ) ) {
text = text.replace( /"dist\//g, "\"" );
fs.writeFileSync( filename, text, "utf-8" );
// Use our hard-coded sourceMap directive instead of the autogenerated one (#13274; #13776)
} else if ( /\.min\.js$/.test( filename ) ) {
i = 0;
text = text.replace( /(?:\/\*|)\n?\/\/@\s*sourceMappingURL=.*(\n\*\/|)/g,
function( match ) {
if ( i++ ) {
return "";
}
return match;
});
fs.writeFileSync( filename, text, "utf-8" );
}
// Optionally copy dist files to other locations
paths.forEach(function( path ) {
var created;
if ( !/\/$/.test( path ) ) {
path += "/";
}
created = path + filename.replace( "dist/", "" );
grunt.file.write( created, text );
grunt.log.writeln( "File '" + created + "' created." );
});
});
return !nonascii;
});
};