Grunt:如何动态构建文件对象 [英] Grunt: How to build the files object dynamically
问题描述
module.exports = function(grunt){
grunt.initConfig({
proj:{
build:{
files:[{
expand:true,
cwd:'src',
src :['** / *。js'],
dest:'dist'
}]
}
}
});
grunt.registerTask('proj',function(){
var files = grunt.config('proj.build.files');
console.log(files) ;
});
};
我希望日志显示从src目录到dist目录的文件映射列表。实际得到的记录是配置中的对象proj.build.files,如下所示:
运行proj:build任务
[{expand:true,cwd:'src',src:['** / *。js'],dest:'dist'}]
完成,没有错误。
API文档仅针对其他任务讨论这种类型的配置。我试图通过uglify任务来查看如何检索文件映射,但我无法弄清楚。
这是我发现的动态构建Grunt任务文件集的解决方法: uglify:{
app:{
文件:[{
src:'{<%= _prefixSrc(pkg.target,pkg.resources.js)%>}',//注意括号!
dest:'<%= pkg.target%> min /<%= pkg.name%> .min.js'
}]
}
} ,
_prefixSrc:函数(前缀,文件){
返回files.map(函数(文件){
返回前缀+文件;
});
},
请参阅GitHub上的此问题/功能请求并随时发表评论如果您觉得它有用: https://github.com/gruntjs/grunt/issues/1307
I must be missing something very simple here. I'm trying to write a function task that deals with files. The Grunt API docs mention that you can [Build the files object dynamically], but for some reason I can't get this to work. A simplified version of my Gruntfile.js file looks like this:
module.exports = function(grunt) {
grunt.initConfig({
proj: {
build: {
files: [{
expand: true,
cwd: 'src',
src: ['**/*.js'],
dest: 'dist'
}]
}
}
});
grunt.registerTask('proj', function(){
var files = grunt.config('proj.build.files');
console.log(files);
});
};
I expect the log to show a list of file mappings from the src directory to the dist directory. What actually gets logged is the object proj.build.files from the config, like this:
Running "proj:build" task
[ { expand: true, cwd: 'src', src: [ '**/*.js' ], dest: 'dist' } ]
Done, without errors.
The API docs only talk about this type of configuration in terms of other tasks. I tried looking through the uglify task to see how the file mappings are retrieved, but I couldn't figure it out.
Here is the workaround I found to dynamically build filesets for Grunt tasks:
uglify: {
app: {
files: [{
src: '{<%= _prefixSrc(pkg.target, pkg.resources.js) %>}', // Note the brackets!
dest: '<%= pkg.target %>min/<%= pkg.name %>.min.js'
}]
}
},
_prefixSrc: function(prefix, files) {
return files.map(function(file){
return prefix + file;
});
},
See also this issue/feature request on GitHub and feel free to comment it if you find it useful: https://github.com/gruntjs/grunt/issues/1307
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