"ignore" in Bower's bower.json?

Question

Bower's website describes the ignore key in bower.json:

ignore [array]: An array of paths not needed in production that you want Bower to ignore when installing your package.

Does this mean that it's ignoring paths in installed components, or in your package? Or something else? I was confused by this.

Answer 1

TL;DR:

ignore only works within the scope of packages being installed, ignoring matching patterns.

---

Somewhat longer answer:

Bower will ignore all files matching the patterns specified in the ignore property of bower.json in installed packages.

So, suppose if you ran bower install someBowerPackage which had following structure:

someBowerPackage
|- css/
|- js/
|- index.html
|- bower.json

with a bower.json file having:

{
  ...
  "ignore": [ "index.html" ]
}

then, index.html file of this someBowerPackage will not be installed within this package.