grunt file expand

gistfile1.txt

    grunt.registerTask('bs', 'sadas', function(){
        var result2, result3;
        var realPaths = grunt.file.expand({
            cwd: 'project'            
        },'**/*.js');


        result2 = _.map(realPaths, function(path){
            var parts = path.split('/');
            return {
                absolute: path,
                filename: parts[parts.length-1]
            };
        });
        
        result3 = _.map(realPaths, function(path){
            return {
                'src': path,
                'new': ''
            };
        });
       // grunt.file.write('filemap.json', JSON.stringify({js: result3}));

        var content = grunt.file.readJSON('filemap.json');

        var mappingPaths = _.pluck(content.js, 'src');
        console.log(_.difference(realPaths, mappingPaths));

    });

    grunt.registerTask('copy2', '', function(){
        var SOURCE_DIR = 'project/';
        var TARGET_DIR = 'project2/';
        var mapFiles = grunt.file.readJSON('filemap.json');
        //console.log(mapFiles);       

        _.each(mapFiles.js, function(obj){
            var parts = obj.src.split('/') 
            , fileName = '/'+parts[parts.length-1]
            , sourcePath = SOURCE_DIR+obj.src
            , targetPath = TARGET_DIR+obj['new']+fileName
            ;
            grunt.file.copy(sourcePath, targetPath, {
                process: function(__, src){
                    if(!grunt.file.exists(sourcePath)){
                        console.log('src not exists!:', src);
                        return false;
                    }
                    return targetPath;
                }
            });
        });
    });