Bootstrap script as xtask subcommand

[tisonkun]

@gomnitrix Generally looks good.

Would you like to port the logic in xtask/src/main.rs? Then we can avoid depending on Shell/PowerShell knowledge and you may want to learn Rust and leverage the Rust (clap-rs, cli) ecosystem for more.

You can start with the following command and perhaps add a new bootstrap subcommand.

template/xtask/src/main.rs

Lines 38 to 58 in 2c696c1

	#[derive(Subcommand)]
	enum SubCommand {
	#[clap(about = "Compile workspace packages.")]
	Build(CommandBuild),
	#[clap(about = "Run format and clippy checks.")]
	Lint(CommandLint),
	#[clap(about = "Run unit tests.")]
	Test(CommandTest),
	}
	#[derive(Parser)]
	struct CommandBuild {
	#[arg(long, help = "Assert that `Cargo.lock` will remain unchanged.")]
	locked: bool,
	}
	impl CommandBuild {
	fn run(self) {
	run_command(make_build_cmd(self.locked));
	}
	}

Originally posted by @tisonkun in #5 (comment)