use anyhow::Result;
use vergen::{vergen, Config, SemverKind};

fn main() -> Result<()> {
    let mut config = Config::default();
    // Change the SEMVER output to the lightweight variant
    *config.git_mut().semver_kind_mut() = SemverKind::Lightweight;
    // Add a `-dirty` flag to the SEMVER output
    *config.git_mut().semver_dirty_mut() = Some("-dirty");
    // Generate the instructions
    if let Err(e) = vergen(config) {
        eprintln!("error occurred while generating instructions: {:?}", e);
        let mut config = Config::default();
        *config.git_mut().enabled_mut() = false;
        vergen(config)
    } else {
        Ok(())
    }
}