Grunt: How to build the files object dynamically

Question

I must be missing something very simple here. I\'m trying to write a function task that deals with files. The Grunt API docs mention that you can [Build the files object dynamic

Answer 1

Here is the workaround I found to dynamically build filesets for Grunt tasks:

uglify: {
    app: {
        files: [{
            src: '{<%= _prefixSrc(pkg.target, pkg.resources.js) %>}', // Note the brackets!
            dest: '<%= pkg.target %>min/<%= pkg.name %>.min.js'
        }]
    }
},
_prefixSrc: function(prefix, files) {
    return files.map(function(file){
        return prefix + file;
    });
},

See also this issue/feature request on GitHub and feel free to comment it if you find it useful: https://github.com/gruntjs/grunt/issues/1307