fn add_key()

in tuftool/src/root.rs [414:442]

• 26 lines of code
• 5 McCabe index (conditional complexity)

fn add_key(root: &mut Root, role: &[RoleType], key: Key) -> Result<Decoded<Hex>> {
    let key_id = if let Some((key_id, _)) = root
        .keys
        .iter()
        .find(|(_, candidate_key)| key.eq(candidate_key))
    {
        key_id.clone()
    } else {
        // Key isn't present yet, so we need to add it
        let key_id = key.key_id().context(error::KeyIdSnafu)?;
        ensure!(
            !root.keys.contains_key(&key_id),
            error::KeyDuplicateSnafu {
                key_id: hex::encode(&key_id)
            }
        );
        root.keys.insert(key_id.clone(), key);
        key_id
    };

    for r in role {
        let entry = root.roles.entry(*r).or_insert_with(|| role_keys!());
        if !entry.keyids.contains(&key_id) {
            entry.keyids.push(key_id.clone());
        }
    }

    Ok(key_id)
}