问题描述
在这个例子中,有一个 / js
目录旁边有一个 / ts
目录。 / ts
将被转移到与 / js
相同的目录中。不应该有任何碰撞。问题是,如果发生冲突, ts
将会获胜;但是,我想警告说有冲突。
$ b $
gulp.task('js',function(){
返回es.concat(
gulp.src(config.src.path('js','**','* .js'))
.pipe(gulp.dest(config .build.path(app,'js')))
//,....
);
});
gulp.task('ts',['js'],function(){
var tsResult = gulp.src(config.src.path('ts' ,'**','* .ts'))
.pipe(ts({
declaration:true,
noExternalResolve:true
}));
return es.concat([
tsResult.dts.pipe(gulp.dest(
config.build.path(app,'definitions'))),
tsResult.js.pipe(gulp.dest(
config.build.path(app,'js')))//< ---与js任务
相同);
))
我可以检测到 ts
任务正在覆盖 js
任务刚才存在的文件?
只是一个想法。您可以到
gulp.src('lib / *。js')
.pipe(uglify())
.pipe(gulp.src('styles / * .css'))
.pipe(gulp.dest(function(file){
if(fs.existsSync('something here')){//这是一个不推荐的调用,使用一个新的
console.warn(File exists,file);
}
/ /我不知道,你可以在这里做一些很酷的事情
return'build / whatever';
}));
该功能自Gulp 3.8开始提供:
其他资源:
I wonder if there is an easy way to detect if two tasks write to the same file.
In this example there is a /js
directory alongside a /ts
directory. The /ts
will get transpiled to the same directory as the /js
. There shouldn't be any collisions. The ask is that, if there are collisions, the ts
will win; but, I would like to warn that there is a collision.
gulp.task('js', function() {
return es.concat(
gulp.src(config.src.path('js', '**', '*.js'))
.pipe(gulp.dest(config.build.path(app, 'js')))
//, ....
);
});
gulp.task('ts', ['js'], function() {
var tsResult = gulp.src(config.src.path('ts', '**', '*.ts'))
.pipe(ts({
declaration: true,
noExternalResolve: true
}));
return es.concat([
tsResult.dts.pipe(gulp.dest(
config.build.path(app, 'definitions'))),
tsResult.js.pipe(gulp.dest(
config.build.path(app, 'js'))) // <--- same dest as js task
]);
})
Can I detect that the ts
task is overwriting a file that the js
task just put in place?
Just an idea. You can pass a callback to gulp.dest
like this:
gulp.src('lib/*.js')
.pipe(uglify())
.pipe(gulp.src('styles/*.css'))
.pipe(gulp.dest(function(file) {
if (fs.existsSync('something here')) { // it's a deprecated call, use a newer one
console.warn("File exists", file);
}
// I don't know, you can do something cool here
return 'build/whatever';
}));
The feature is available since Gulp 3.8: https://github.com/gulpjs/gulp/blob/master/CHANGELOG.md#380
Other resources:
这篇关于Gulp dest:如果2个任务尝试写入相同的目标,则发出警告的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持!