Rename destination path in Grunt

grunt_rename

grunt.initConfig({
    less: {
        development: {
            files: [{
                expand: true,
                cwd: 'src/',
                src: ['**/*.less'],
                dest: 'css/',
                ext: '.css',
                rename: function(dest, src) {
                    //dest contain the 'css/' path
                    //dest will be the file processed like 'foo/bar/file.css'
                    return dest + src.replace('/bar', '');
                }
            }]
        }
    }
});

File:

"/src/foo/bar/file.less"

Will be processed in:

"/css/foo/file.css"