我是Grunt和
Javascript / Coffeescript的新手.
我们在一个包含数百个.coffee文件的大型项目中使用Grunt.由于Grunt编译了所有的咖啡文件(尽管只有一个文件已经更改),我最初的问题是如何让Grunt只编译一个更改的文件.
使用stackoverflow我能够回答这个问题,谢谢大家:)
但现在似乎已实施的解决方案打破了实时重载.当我从“grunt服务器”开始并在浏览器中显示我的页面时,一切看起来都很好.然后我更改一个.coffee文件并保存.文件被编译(我已检查),但我的浏览器从未被重新加载.只有当我手动重新加载浏览器时,才会显示新修改的代码.
所以问题是：为什么livereload不再有效？
我不知道这是否重要,但Gruntfile是在旧版本中使用yeoman创建的(使用grunt-regarde).我使用grunt-contrib-watch和buildin livereload将package.json和Gruntfile更新为更新的规范.没有grunt.event.on一切正常.
来源(部分)：
grunt.initConfig({
watch: {
coffee: {
files: ['<%= yeoman.app %>/coffeescripts/**/*.coffee'],tasks: ['coffee:app'],options: {
nospawn: true
},},compass: {
files: ['<%= yeoman.app %>/styles/**/*.{scss,sass}'],tasks: ['compass']
},templates: {
files: ['<%= yeoman.app %>/templates/**/*.tpl'],tasks: ['handlebars']
},livereload: {
options: {
livereload: LIVERELOAD_PORT
},files: [
'<%= yeoman.app %>/*.html','<%= yeoman.tmp %>/styles/**/*.css','<%= yeoman.tmp %>/scripts/**/*.js','<%= yeoman.tmp %>/spec/**/*.js','<%= yeoman.app %>/img/{,*/}*.{png,jpg,jpeg,webp}',]
}
},coffee: {
app: {
expand: true,cwd: '<%= yeoman.app %>/coffeescripts',src: '**/*.coffee',dest: '<%= yeoman.tmp %>/scripts',ext: '.js',options: {
runtime: 'inline',sourceMap: true
},}
}
}
});
grunt.event.on('watch',function(action,filepath) {
filepath = filepath.replace(grunt.config('coffee.app.cwd')+'/','' );
grunt.config('coffee.app.src',[filepath]);
});
grunt.registerTask('server',function (target) {
if (target === 'dist') {
return grunt.task.run(['build','open','connect:dist:keepalive']);
}
grunt.task.run([
'clean:server','coffee','compass:server','symlink:bower','connect:livereload','handlebars','notify:watch','watch'
]);
});
grunt-contrib-watch与版本v0.4.4一起使用,
connect-livereload与版本0.2.0
解决方法
我的解决方案
grunt.initConfig({
pkg: grunt.file.readJSON('package.json'),cssmin: {
dist: {
expand: true,cwd: 'app',src: ['**/*.css'],dest: 'WebContent'
}
},uglify: {
options: {
mangle: false
},dist: {
expand: true,cwd: 'app/js',src: ['**/*.js'],dest: 'WebContent/js'
}
},htmlmin: {
options: {
collapseWhitespace: true
},src: ['**/*.html'],watch: {
options: {
spawn: false
},cssmin: {
files: 'app/css/**/*.css',tasks: ['cssmin']
},uglify: {
files: 'app/js/**/*.js',tasks: ['uglify']
},htmlmin: {
files: 'app/**/*.html',tasks: ['htmlmin']
}
},});
// Faz com que seja salvo somente o arquivo que foi alterado
grunt.event.on('watch',filepath) {
var tasks = ['cssmin','uglify','htmlmin'];
for (var i=0,len=tasks.length; i < tasks.length; i++) {
var taskName = tasks[i];
if (grunt.file.isMatch(grunt.config('watch.'+ taskName +'.files'),filepath)) {
var cwd = new String(grunt.config(taskName + '.dist.cwd')).split('/').join('\\') + '\\'; //inverte as barras e adiciona uma "\" no final
var pathWithoutCwd = filepath.replace(cwd,''); //obtem somente o path sem o cwd
grunt.config(taskName + '.dist.src',pathWithoutCwd); //configura a task
}
}
});
grunt.loadNpmTasks('grunt-contrib-watch');
grunt.loadNpmTasks('grunt-contrib-cssmin');
grunt.loadNpmTasks('grunt-contrib-uglify');
grunt.loadNpmTasks('grunt-contrib-htmlmin');
// Tarefas padrão
grunt.registerTask('default',['cssmin','htmlmin']);
};
