How to copy all files from a directory and all its nested subdirectories in npm?

Question

I want to copy all files (unknown what their names are before hand) in npm, from a structure similar to this:

maindir
 -> subdir1
   -> subSubdir1
     -> filea.js
   -> file.js
 -> subdir2
   -> fileb.js
 -> filec.js

I want them to be "flattened" (no subdirectories) in the out directory. And I only want "*.js" files.

I tried (package.json script):

#None of these options works
"copy-files": "copyfiles -f maindir/**/** out"
"copy-files": "copyfiles -f maindir/**/*.js out"

What would the matching expression be?

Answer 1

You can use ncp module, You can find all of the usage types in given link

Usage is simple: ncp [source] [dest] [--limit=concurrency limit] [--filter=filter] --stopOnErr

Or you can use fs-extra

Answer 2

This will work to copy files from nested Directories

"copyfiles -u 1 \"./src/**/*.html\" \"dist\""

Answer 3

I don't believe that NCP is supported anymore and you can do this with copyfiles by doing

copyfiles soruceDir destinationDir

but I would suggest you try the following command line options which will help identify whats going wrong with your copy:

copyfiles -VEau soruceDir/** destinationDir