Compile Git SHA Into Rust
It often make sense to compile the Git SHA into the binary to be able to debug issues.
To achieve this in Rust
, add the following to your build.rs:
use anyhow::Result;
use std::process::Command;
fn main() -> Result<()> {
let output = Command::new("git")
.args(&["rev-parse", "--short", "HEAD"])
.output()?;
let git_hash = String::from_utf8(output.stdout)?;
println!("cargo:rustc-env=GIT_SHA={}", git_hash);
Ok(())
}
Printing cargo:rustc-env=MY_ENV_KEY=<my-env-value> from your build.rs will make it available in your application with env!("MY_ENV_KEY") (which resolves to an ENV at compile time).