build: allow libs to specify separate build step to speed up compatibility tests

apollographql / apollo-federation-subgraph-compatibility

A repo to test subgraph libraries compatibility with the Apollo Federation Specification

https://www.apollographql.com/docs/federation/building-supergraphs/supported-subgraphs/

MIT License

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build: allow libs to specify separate build step to speed up compatibility tests #548

Open dariuszkuc opened 1 year ago

dariuszkuc commented 1 year ago

Currently libs are always build within the docker images which means they cannot easily rely on caching. If we provide ability to specify optional build step, this might simplify the target docker files and also speed up the compatibility tests.