skillflag 0.1.0

Rust implementation of the Skillflag producer library/CLI and the skill-install companion CLI.
Documentation 
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use sha2::{Digest, Sha256};

/// `sha256:` + lowercase hex SHA-256 over the exact export bytes.
pub fn digest_sha256(bytes: &[u8]) -> String {
    let mut hasher = Sha256::new();
    hasher.update(bytes);
    let digest = hasher.finalize();
    let mut out = String::with_capacity(7 + digest.len() * 2);
    out.push_str("sha256:");
    for byte in digest {
        out.push_str(&format!("{byte:02x}"));
    }
    out
}

#[cfg(test)]
mod tests {
    use super::digest_sha256;

    #[test]
    fn digest_of_empty_input() {
        assert_eq!(
            digest_sha256(b""),
            "sha256:e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855"
        );
    }
}