build.rs

use std::process::Command;

fn main() {
    // Git short hash
    let git_hash = Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output()
        .ok()
        .filter(|o| o.status.success())
        .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
        .unwrap_or_else(|| "unknown".into());

    // Dirty flag
    let dirty = Command::new("git")
        .args(["diff", "--quiet"])
        .status()
        .map(|s| !s.success())
        .unwrap_or(false);

    let git_info = if dirty {
        format!("{}-dirty", git_hash)
    } else {
        git_hash
    };

    // Build timestamp (UTC)
    let timestamp = Command::new("date")
        .args(["-u", "+%Y-%m-%dT%H:%M:%SZ"])
        .output()
        .ok()
        .filter(|o| o.status.success())
        .map(|o| String::from_utf8_lossy(&o.stdout).trim().to_string())
        .unwrap_or_else(|| "unknown".into());

    println!("cargo:rustc-env=SLMRS_GIT_INFO={}", git_info);
    println!("cargo:rustc-env=SLMRS_BUILD_TIME={}", timestamp);

    // Rebuild when dashboard frontend assets change (rust-embed picks up new files)
    println!("cargo:rerun-if-changed=dashboard/build");

    // Force rebuild every time so the timestamp is always current.
    println!("cargo:rerun-if-changed=FORCE_REBUILD");
}