use std::path::PathBuf;

use clap::Parser;

/// Generate Nix packages with hash prefetching, license detection, and more

/// https://github.com/nix-community/nix-init

#[derive(Parser)]

#[command(version, verbatim_doc_comment)]

pub struct Opts {

/// The path or directory to output the generated file to

pub output: Option<PathBuf>,

/// Specify the URL

#[arg(short, long)]

pub url: Option<String>,

/// Path to nixpkgs (in nix)

///

/// Examples:

/// {n} -n ./. (use the current directory)

/// {n} -n 'builtins.getFlake "nixpkgs"' (use the nixpkgs from the flake registry)

/// {n} -n '<nixpkgs>' (default, use the nixpkgs from channels)

#[arg(short, long)]

pub nixpkgs: Option<String>,

/// Commit the changes if the output path is name-based (RFC 140)

///

/// see https://github.com/NixOS/nixpkgs/tree/master/pkgs/by-name for more information

#[arg(short = 'C', long, num_args=0..=1, require_equals = true, default_missing_value = "true")]

pub commit: Option<bool>,

/// Specify the config file

#[arg(short, long)]

pub config: Option<PathBuf>,

}