Gruntfile.js

module.exports = function (grunt) {
    grunt.initConfig({
        jade: {
            options: {
                pretty: true
            },
            rel_brother: {
                options: {
                    data: {
                        img: './'
                    }
                },
                files: [{
                    'test/www/rel_brother.html': 'test/index.jade'
                }]
            },
            rel_child: {
                options: {
                    data: {
                        img: '../'
                    }
                },
                files: [{
                    'test/www/child/rel_child.html': 'test/index.jade'
                }]
            },
            abs_root: {
                options: {
                    data: {
                        img: '/'
                    }
                },
                files: [{
                    'test/www/abs/abs_root.html': 'test/index.jade'
                }]
            },
            abs_rootchild: {
                options: {
                    data: {
                        img: '/child/'
                    }
                },
                files: [{
                    'test/www/abs/abs_rootchild.html': 'test/index.jade'
                }]
            }
        },
        imgsizefix: {
            options: {
                force: true,
                paths:{
                    'test/www/': [
                        new RegExp("^\\/\\/[^\\/]+"),
                        new RegExp("^\\/"),
                        "http://example.com"
                    ],
                    'test/www/child/': [
                        '/child/'
                    ]
                }
            },
            short: ['test/**/*.html'],
            long: {
                src: ['test/**/*.html']
            }
        }
    });
    grunt.loadNpmTasks('grunt-contrib-jade');
    grunt.loadTasks('tasks');
    grunt.registerTask('default', ['jade', 'imgsizefix']);
}