PurgeCSS: How to define path to all subdirectories?

Question

The basic postcss.config.js looks like this

const purgecss = require('@fullhuman/postcss-purgecss')

module.exports = {
  plugins: [
    purgecss({
      content: ['./**/*.html']
    })
  ]
}

I have a situation where I need to define the path to a folder with nested subdirectories. The only explanation I found was this one:

content: [
    // keep only those that you need
    '**/*.html' // will look inside any folder for an .html file
    '!(bar)/**/*.html' // will look inside any folder that is not 'bar'
    '!({bar,foo})/**/*.html' // will look inside any folder that is nor 'bar' nor 'foo'
    '!(bar-*)/**/*.html' // will look inside any folder that does not start with 'bar-'
  ],
  css: [`**/*.css`],

...but I want something different: How to define the path to a folder and all his subdirectories (and their subdirectories and so on)?

There is something like

glob.glob('**/*.txt',recursive=True): matches all files ending in '.txt' in the current directory and in all subdirectories

How to set the option recursive=True in PostCSS/PurgeCSS?

Answer 1

My postcss.config.js looks like this:

const themeDir = __dirname + '/../../';

const purgecss = require('@fullhuman/postcss-purgecss')({

    // Specify the paths to all of the template files in your project
    content: [
        themeDir + 'layouts/**/*.html',
        themeDir + 'content/**/*.html',
        'layouts/**/*.html',
        'content/**/*.html',
        // Specify path to own javascript
        themeDir + 'assets/js/**/*.js',
    ],