cargo-example-derive.rs

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use clap::Parser;

#[derive(Parser)] // requires `derive` feature

#[command(name = "cargo")]

#[command(bin_name = "cargo")]

#[command(styles = CLAP_STYLING)]

enum CargoCli {

    ExampleDerive(ExampleDeriveArgs),

// See also `clap_cargo::style::CLAP_STYLING`

pub const CLAP_STYLING: clap::builder::styling::Styles = clap::builder::styling::Styles::styled()

    .header(clap_cargo::style::HEADER)

    .usage(clap_cargo::style::USAGE)

    .literal(clap_cargo::style::LITERAL)

    .placeholder(clap_cargo::style::PLACEHOLDER)

    .error(clap_cargo::style::ERROR)

    .valid(clap_cargo::style::VALID)

    .invalid(clap_cargo::style::INVALID);

#[derive(clap::Args)]

#[command(version, about, long_about = None)]

struct ExampleDeriveArgs {

    #[arg(long)]

    manifest_path: Option<std::path::PathBuf>,

fn main() {

    let CargoCli::ExampleDerive(args) = CargoCli::parse();

    println!("{:?}", args.manifest_path);