abk 0.4.5

Agent Builder Kit - Complete modular agent building blocks with feature-gated modules
Documentation 
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use std::process::Command;

fn main() {
    // Try to get the short git sha; if it fails, set to "unknown"
    let sha = Command::new("git")
        .args(["rev-parse", "--short", "HEAD"])
        .output()
        .ok()
        .and_then(|o| String::from_utf8(o.stdout).ok())
        .map(|s| s.trim().to_string())
        .unwrap_or_else(|| "unknown".into());

    println!("cargo:rustc-env=GIT_SHA={}", sha);

    // Build date (UTC)
    let build_date = Command::new("date")
        .args(["-u", "+%Y-%m-%d"])
        .output()
        .ok()
        .and_then(|o| String::from_utf8(o.stdout).ok())
        .map(|s| s.trim().to_string())
        .unwrap_or_else(|| "unknown".into());

    println!("cargo:rustc-env=BUILD_DATE={}", build_date);

    // Rust compiler version
    let rustc_version = Command::new("rustc")
        .args(["--version"])
        .output()
        .ok()
        .and_then(|o| String::from_utf8(o.stdout).ok())
        .map(|s| s.trim().to_string())
        .unwrap_or_else(|| "unknown".into());

    println!("cargo:rustc-env=RUSTC_VERSION={}", rustc_version);

    // Build profile
    let profile = std::env::var("PROFILE").unwrap_or_else(|_| "unknown".into());
    println!("cargo:rustc-env=BUILD_PROFILE={}", profile);
}