build.rs

use std::{error::Error, process};

fn main() -> Result<(), Box<dyn Error>> {
    // Emit the instructions to the cargo build script (currently, just the current git sha hash)
    println!("cargo:rerun-if-changed=build.rs");

    let result = process::Command::new("git")
        .args(&["rev-parse", "--short=12", "HEAD"])
        .output()
        .map_err(|e| format!("Failed to execute git: {}", e))?;

    if !result.status.success() {
        return Err(format!(
            "Failed to execute git: {}",
            String::from_utf8_lossy(&result.stderr)
        )
        .into());
    }

    let git_hash = String::from_utf8_lossy(&result.stdout);
    let git_hash = git_hash.trim();

    println!("cargo:rustc-env=VERGEN_IS_LITERALLY_TRASH__IT_DOES_NOT_WORK_AND_IT_ACTUALLY_BREAKS_EVERY_TIME_I_UPDATE_IT__LIKE_SERIOUSLY_HOW_IS_THAT_POSSIBLE___STOP_CHANGING_THE_DAMN_IMPLEMENTATION___I_JUST_WANT_A_STUPID_GIT_HASH={}", git_hash);

    Ok(())
}