Grunt.js:在任务完成之前,一旦文件被修改,就会立即进行Firereload

时间:2013-08-12 12:01:28

标签: node.js gruntjs livereload grunt-contrib-watch

我正在使用Grunt用罗盘编译我的CSS并触发浏览器livereload。这些是我的观察任务:

watch: {
    styles: {
        options: {
            spawn: false,
        },
        files: [assetsDir + '/**/*.scss', '!**/*.{dev,min}.scss'],
        tasks: [
            'concat:styles',
            'compass:styles',
            'imagemin:styles',
            'cssmin:styles',
            'clean:styles',
        ],
    },
    scripts: {
        options: {
            spawn: false,
        },
        files: [assetsDir + '/**/*.js', '!**/*.{dev,min}.js'],
        tasks: [
            'concat:scripts',
            'uglify:scripts',
        ],
    },
    livereload: {
        options: {
            livereload: true,
            spawn: false,
        },
        files: [assetsDir + '/**/*.{dev,min}.{css,js}'],
    },
},  

直到样式任务完全完成后,livereload任务才会触发,但是imagemin可能会增加一些显着的延迟,我真正关心的是CSS,只要指南针完成就会准备就绪。< / p>

如何在指南针完成后立即触发livereload,但允许其他任务继续?我尝试了下面的配置,当CSS改变时触发imagemin,但它似乎不起作用。由于某种原因,这个imagemin根本不会触发。你能不能看多个任务看同一个文件吗?

watch: {
    styles: {
        options: {
            spawn: false,
        },
        files: [assetsDir + '/**/*.scss', '!**/*.{dev,min}.scss'],
        tasks: [
            'concat:styles',
            'compass:styles',
            'cssmin:styles',
            'clean:styles',
        ],
    },
    scripts: {
        options: {
            spawn: false,
        },
        files: [assetsDir + '/**/*.js', '!**/*.{dev,min}.js'],
        tasks: [
            'concat:scripts',
            'uglify:scripts',
        ],
    },
    images: {
        options: {
            spawn: false,
        },
        files: [assetsDir + '/**/*.{dev,min}.css'],
        tasks: [
            'imagemin:styles',
        ],
    },
    livereload: {
        options: {
            livereload: true,
            spawn: false,
        },
        files: [assetsDir + '/**/*.{dev,min}.{css,js}'],
    },
},

感谢。

1 个答案:

答案 0 :(得分:6)

我设法通过使用grunt-concurrent并行运行三个监视任务来实现此目的:

concurrent: {
    options: {
        logConcurrentOutput: true,
    },
    watch: [
        'watch:scripts',
        'watch:styles',
        'watch:livereload',
    ],
},