dcb/dcb-tools/src/patcher/cli.rs

//! Cli manager for the extractor

// Filesystem
use std::path::{Path, PathBuf};

// Clap
use clap::{App as ClapApp, Arg as ClapArg};

// Errors
use err_panic::ErrorExtPanic;

/// Data from the command line
#[derive(PartialEq, Clone, Debug)]
pub struct CliData {
	/// The game file
	pub game_file_path: PathBuf,

	/// The input directory
	pub input_dir: PathBuf,
}

impl CliData {
	/// Constructs all of the cli data given and returns it
	pub fn new() -> Self {
		// Get all matches from cli
		let matches = ClapApp::new("Dcb Patcher")
			.version("0.0")
			.author("Filipe [...] <[...]@gmail.com>")
			.about("Patches data to a Digimon Digital Card Battle `.bin` game file")
			.arg(ClapArg::with_name("GAME_FILE").help("Sets the game file to use").required(true).index(1))
			.arg(
				ClapArg::with_name("INPUT")
					.help("Sets the input directory to use")
					.short("i")
					.long("input")
					.takes_value(true)
					.required(false),
			)
			.get_matches();

		// Get the ouput filename
		// Note: required
		let game_file_path = matches
			.value_of("GAME_FILE")
			.map(Path::new)
			.map(Path::to_path_buf)
			.panic_msg("Unable to get required argument `GAME_FILE`");

		// Get the input dir as either an input, the game file directory or the current directory
		let input_dir = matches
			.value_of("INPUT")
			.map_or_else(|| game_file_path.parent().unwrap_or_else(|| Path::new(".")), Path::new)
			.to_path_buf();

		// Return the cli data
		Self { game_file_path, input_dir }
	}
}