Installation via npm does not compile

[jurajpiar]

When installed as dependency it does not automatically install, compile and generate types, as one would expect to make use of it in a JS/TS project. I'm guessing the authors used npm link to test? This assumption is based on the fact that after npm i @rsksmart/erc677 the dependency misses datagen.js and truffle-config.js.

An ideal fix would run the compilation and test generation upon package installation.