Nsryjdtyk

I was trying to understand how gulp works, and particularly how to select files, so I ran some tests. But the results are not as they were supposed to be.

Could somebody please explain me why I get theses results and if it was the result expected.

Files set

assets

|-script01.js

|--sub01

   |-script02.js

   |-script03.js

|--sub02

   |-script04.js

   |--sub03

      |-script05.js

My aim was no get all files except all the sub02 folder. Pretty simple as it seemed :)

gulpfile.js

const { src, dest } = require('gulp');



exports.test01 = function() {

  return src(['assets/**/*', '!assets/sub02'])

    .pipe(dest('output/'))

}

But the output was

// output

// |-script01.js

// |--sub01

//    |-script02.js

//    |-script03.js

// |--sub02

//    |-script04.js

//    |--sub03

//       |-script05.js

So I ran different tests like

exports.test02 = function() {

  return src(['assets/**/*', '!assets/sub02/*'])

    .pipe(dest('output/'))

}

Which output is

output

|-script01.js

|--sub01

    |-script02.js

    |-script03.js

|--sub02

    |--sub03

       |-script05.js

Then I tried this

exports.test03 = function() {

  return src(['assets/**/*', '!assets/sub02/**/*'])

    .pipe(dest('output/'))

}

Which logically results in

output

|-script01.js

|--sub01

   |-script02.js

   |-script03.js

|--sub02

And finally I understood how to accomplish what I wanted

exports.test04 = function() {

  return src(['assets/**/*', '!assets/sub02/**/*', '!assets/sub02'])

    .pipe(dest('output/'))

}

Yay!

output

|-script01.js

|--sub01

   |-script02.js

   |-script03.js

But regarding the doc (of gulp, https://gulpjs.com/docs/en/getting-started/explaining-globs), I should be able to accomplish Test 01

exports.test05 = function() {

  return src(['**/*.js', '!node_modules/'])

    .pipe(dest('output/'))

}

// Result : all directories and their .js files in output

// including node_mudules ones.

And here's a bonus question. Running the tests, I tried this. But didn't work neither. Why ?

// --- BONUS QUESTION

exports.bonus = function() {

  return src(['assets/**/*', '!assets/sub02/**/*', 'assets/sub02/script04.js'])

    .pipe(dest('output/'))

}



output

|-script01.js

|--sub01

   |-script02.js

   |-script03.js

|--sub02

* script04.js missing :( *

If you want to test it quickly :

mkdir -p assets assets/sub01 assets/sub02/sub03 output;



touch assets/script01.js assets/sub01/script02.js assets/sub01/script03.js assets/sub02/script04.js assets/sub02/sub03/script05.js 

Many thanks in advance !

EDIT

After further investigation, this works to

exports.test01 = function() {

  return src(['assets/**/*.js', '!assets/sub02/**/*.js'])

    .pipe(dest('output/'))

}



// output

// |-script01.js

// |--sub01

//    |-script02.js

//    |-script03.js

So as I understand it, ** includes assets/sub02 folder as folder.
So dest copies the folder as folder, except if all the files first selected in src first globs are negated. Any thoughts ?