declarative-env 0.1.0 released (crates.io)

submitted 1 month ago by asperan@programming.dev to c/rust@programming.dev

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This crate contains a macro for generating a struct which reads the environmental variables defined in the configured file.

This allows to have a single point of definition for the env configuration, thus avoiding a possible incoherence between the documentation and the implementation.

GitHub link: https://github.com/asperan/declarative-env

Note: I'm the developer of this crate, I'm sharing this hoping that it could help someone

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[-] asperan@programming.dev 2 points 1 month ago

If the spec contains default values why not make a constructor with all the missing fields or implement Default when all fields are covered?

For the first implementation I wanted to keep it simple, I don't exclude that in the future it will change.

Also lol:

Yep, I still need to figure out deep macro testing, for now I use the integration tests and cargo expand. This will absolutely change in the future :)

Thanks for the feedback!

this post was submitted on 11 Sep 2025

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