Grunt在For循环中运行 [英] Grunt Run in a For Loop

问题描述

我是新来的咕噜。

我有一个适用于单一版本的gruntfile。有几个目标链接在一起完成该过程。问题是我需要使用可变数据创建几个不同的版本。我想弄清楚如何在我的gruntfile中做到这一点。

今天做一个构建，我只需要运行

  grunt --foo = bar build 
  

或

  grunt --foo = baz build 
  

想要做，并试图做的是创建一个使用数组来定义foo数据的构建全部目标，如下所示：

  grunt.registerTask（'build-all'，function（）{
 var foos = [bar，baz]; 
 for（var i in foos）{
 grunt.config.set（foo，foos [i]）; 
 grunt.task.run（build）; 
} 
}）; 
  

从外观上看，运行任务似乎是非阻塞的。这意味着foo在第一次运行之前被设置为baz，并为相同的值运行两次。

是否有更好的方法来设置参数/在这种情况下的选项？或者以阻塞的方式运行任务？

解决方案

我最近遇到了这个问题，并写了 grunt-galvanize 帮助解决这个问题。以下是它的工作原理，适用于您的示例：

  grunt.registerTask（'build-all'，function（）{
 $ var vos = [bar，baz]; 
 var galvanizeConfig = []; 
 $ b $ for（var i in foos）{
 galavanizeConfig.push（{ configs：{foo：foos [i]}}）; 
} 
 grunt.option（'galvanizeConfig'，galvanizeConfig）; 
 grunt.task.run（['galvanize：build'] ）; 
}）; 
  

这将运行带有指定的每个选项/配置的 build 任务in galvanizeConfig 。

PS。我也在需要并发的情况下使用grunt-multi，但对于不需要并发的情况，grunt-galvanize是一个简单得多的工具。

I'm new to grunt.

I have a gruntfile that works for a single build. There are several target that are chained together to complete the process. The problem is that I need to create several different builds using variable data. I'm trying to figure out how to do this in my gruntfile.

Today, to do a build, I just need to run

grunt --foo=bar build

or

grunt --foo=baz build

What I'd like to, and have tried to do, is create a build-all target that uses an array to define the foo data, like so:

grunt.registerTask('build-all', function() {
    var foos = ["bar", "baz"];
    for (var i in foos) {
        grunt.config.set("foo", foos[i]);
        grunt.task.run("build");
    }
});

From the looks of things, it seems that the run task is non-blocking. And that means that "foo" is being set to "baz" before the first run, running it twice for the same value.

Is there a better way to set arguments/options in this situation? Or to run the task in a blocking way?

解决方案

I recently ran up against this same issue, and wrote grunt-galvanize to help with this. Here's how it works, applied to your example:

grunt.registerTask('build-all', function() {
    var foos = ["bar", "baz"];
    var galvanizeConfig = [];

    for (var i in foos) {
        galavanizeConfig.push({configs: {foo: foos[i]}});
    }
    grunt.option('galvanizeConfig', galvanizeConfig);
    grunt.task.run(['galvanize:build']);
});

This will run the build task with each of the options/configs specified in galvanizeConfig.

PS. I also use grunt-multi for cases where I desire concurrency, but grunt-galvanize is a much simpler tool for cases where concurrency is not required.

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