libcryptsetup-rs 0.15.1

High level Rust bindings for libcryptsetup
Documentation 
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use pkg_config::Config;
use semver::Version;

static SUPPORTED_VERSIONS: &[&str] = &["2.2.0", "2.3.0", "2.4.0", "2.7.0"];

// This build script will set a cfg directive in the form of
// "cryptsetup[MAJOR][MINOR]supported" for every version up until and including
// the current system version installed. There is currently no good way to
// compare whether a version is equal to or greater than from the macro
// context of #[cfg(...)] so instead, the current best option is to enable all
// minor versions corresponding to a major version that are less than or equal
// to the current minor version.
fn main() {
    let version = match Config::new()
        .atleast_version("2.2.0")
        .probe("libcryptsetup")
    {
        Ok(l) => Version::parse(&l.version).unwrap(),
        Err(e) => panic!("Bindings require at least cryptsetup-2.2.0: {e}"),
    };
    for ver_string in SUPPORTED_VERSIONS.iter() {
        let version_cfg = format!(
            "cryptsetup{}supported",
            ver_string.split('.').take(2).collect::<Vec<_>>().join("")
        );
        println!("cargo::rustc-check-cfg=cfg({version_cfg})");

        let iter_version = Version::parse(ver_string).expect("Could not parse version");
        if version >= iter_version {
            println!("cargo:rustc-cfg={version_cfg}");
        }
    }
}