//! Build-time identity of this binary.
//!
//! The version comes from `SM121_VERSION` at compile time: the add-on CI passes
//! it as a Docker build arg, the builder stage exports it, and `build.rs` writes
//! it into `OUT_DIR/build_version.rs` (so a warm cargo cache cannot keep the old
//! literal). A plain `cargo build` reports `dev`.

include!(concat!(env!("OUT_DIR"), "/build_version.rs"));

/// The version baked in at build time (`dev` for a local build).
pub fn version() -> &'static str {
    VERSION
}

#[cfg(test)]
mod tests {
    use super::version;

    #[test]
    fn version_is_never_empty() {
        assert!(!version().is_empty());
    }
}