[DRAFT] Proposal: scopes for more tailored datafiles

[fahad19]

What's proposed

New API for introduced for more tailored and optimized datafile generation without affecting any existing users negatively.

Proposal is written as documentation as if the functionality already exists.

Once we collect further feedback, implementation will begin in the same PR.

TODOs

• Write docs assuming the functionality already exists
• Allow project configuration to accept scopes
• Create example project for play with scopes
• Create function for creating scoped datafiles out of tagged datafiles
• Write (failing) tests for scoped datafile creating function
• Honour scopes by generating scoped datafiles via $ npx featurevisor build
• Allow test specs for features to run against scope
• Write test specs against scope in example project
• Make all tests pass
• Attack it with many more complex cases

How to try it out locally

Clone the repo first, and do:

$ make install
$ make build

Example project

Found in ./examples/example-yml-scopes

$ (cd examples/example-yml-scopes && npm run build)

See output in ./examples/example-1/dist directory.

Core package

This is the datafile builder:

$ (cd ./packages/core && npm run build && npm test)