Configuration

[davidjgoss]

Currently there are no configuration options for cucumber-node - everything hangs off what node --test does from its own arguments.

But we'll need some configuration options sooner or later. Examples:

• Filter by tag expression #9
• Specify support code location(s) #10

It's fair to assume that users will want to:

• Have some options that always apply, in a file
• Override those options run-by-run, sometimes

As with other things, we want to lean into Node.js conventions and not reinvent the wheel. Some options (multiple choice):

• Support environment variables, and encourage users to lean into Node.js support for .env files
• Use the nascent Node.js config file
• Have our own config file