filters

During copy task you can transform the copied file content using filters.

config for filter contains

• filter - function that transforms and returns new value, but can return undefined to say no changes happened
• include - list of include glob patterns
• exclude - list of exclude glob patterns

example filter

const changeBg = {
  include: ['index.html'],
  exclude: [],
  filter: str => {
    let srch = 'background: #eee;'
    if (str.includes(srch)) return str.replace(srch, 'background: blue;')
  },
}