ignore-prefixed-dir.js

// --------------------------------------------
//
// A module for generating an `anymatch` ignore function https://github.com/es128/anymatch
// that ignores files whose parent contains a dir with a given prefix
//
// --------------------------------------------
var path = require('path')
var _ = require('underscore')

// --------------------------------------------
// Set up our defaults
// `root` is a part of the path that is ignored
// `prefix` is our string to look at
//
var defaults = {
  root: '',
  prefix: '_'
}

// --------------------------------------------
//
// Our main function
//
// --------------------------------------------
module.exports = function (config) {
  _.defaults(config, defaults)

  return function (str) {
    var uniformStr = str.replace(config.root, '')
    var parts = uniformStr.split(path.sep)
    return parts.some(function (part) {
      return part.substr(0, config.prefix.length) === config.prefix
    })
  }
}