Class CmdlineOptions

tools/traverse.rs:18–60

#[derive(Debug, Parser)]
#[clap(name = "traverse", verbatim_doc_comment)]
struct CmdlineOptions {
    /// The log level
    #[clap(long, default_value_t = tracing::Level::INFO)]
    log_level: tracing::Level,

    /// Input file to read input from. Defaults to stdin.
    ///
    /// Input format is expected to be Trivial Graph Format.
    #[clap(short, long)]
    input: Option<PathBuf>,

    /// Output file to write result to. Defaults to stdout.
    #[clap(short, long)]
    output: Option<PathBuf>,

    /// The random seed to use. Use zero to let the tool pick its own random seed.
    #[clap(long, default_value_t = 0)]
    seed: u64,

    /// The number of random graph traversals to perform
    #[clap(short = 't', long, default_value_t = 1)]
    traversals: u8,

    /// Whether to perform a random number of traverals with mean '--traversals'
    #[clap(short = 'T', long, default_value_t = false)]
    random_traversals: bool,

    /// The length of each random traversal
    #[clap(short = 'l', long, default_value_t = 4)]
    length: u8,

    /// Whether to make the length of each traversal random with mean '--length'
    #[clap(short = 'L', long, default_value_t = false)]
    random_length: bool,

    /// Remove edges after traversing them
    #[clap(short = 'r', long, default_value_t = false)]
    remove_after_traverse: bool,

    /// Output untraversed nodes at the end
    #[clap(short = 'u', long, default_value_t = false)]
    untraversed: bool,
}

fn generate_random_seed_if_not_specified(seed: u64) -> u64 {
    if seed == 0 {