How to access current cargo profile (build, test, bench, doc, …) from the build script (build.rs)

Question

I want to write a custom build.rs script that generates some diagrams to accompany the documentation for a crate I\'m working on. I want this script to run only

Answer 1

This is not possible as of Rust 1.47. Cargo issue #4001 tracks the possibility of supporting this in some fashion.