Copy exception with grunt.js

Question

I'm trying to copy the content of a folder except one subfolder with grunt.js.

src/
src/folder1
src/folder2
src/folder3

How do I copy the content of src except folder3 in dist/?

dist/
dist/folder1
dist/folder2

I'v tryed things with ! but everythings failled :(.

copy: {
  main: {
    expand: true,
    cwd: 'src/',
    src: [
    '**',
    '!folder3'
    ],
    dest: 'dist/'
  }
}

Answer 1

Here is how I managed to do the job:

copy: {
   main: {
     expand: true,
     cwd: 'src/',
     src: [
     '**',
     '!**folder3/**'
     ],
     dest: 'dist/'
   }
 }