where this came up: https://discourse.roots.io/t/bud-and-ecmascript-modules-esm/21743/7

Type of change

• MINOR: feature

Dependencies added

• NA

Details

• adds sync filter: 'build.override' 'config.override' (build namespace is reserved for compiler)
• modifiesbud.config to pass built config to bud.hook.on('config.override') event.
  • this happens directly before bud.build verifies the configuration (strips undefined and null values)
• bud.override is just an alias for bud.config.
• fix: hooks.filter and hooks.promised will now tap the function passed to them if the supplied value is a CallableFunction type

filter example:

bud.hooks.on('config.override', config => ({
  ...config,
  // ...overrides,
})