[cli] Install a dependency's environment definitions #4541
Merged
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Closes #4445. For any dependency that ships flow type definitions check if they have a
flow-typed.config.json
and if so, read theirenv
to check if they depend on any environment definitions.If so install them along side any environment definitions the project installing might need. This allows a library to be developed with flow-typed knowing it will behave the same when consumed by a consumer using flow.
Not very common for open source, but very useful when developing a stack of internal npm libraries all shipping flow types.