mirror of
https://github.com/clap-rs/clap
synced 2024-12-13 14:22:34 +00:00
8ea1e2d4d3
This changes the default type as well to encourage preserving the full information for shelling out. If people need UTF-8, then they can change the value parser. Fixes #3733
100 lines
3.4 KiB
Rust
100 lines
3.4 KiB
Rust
use std::ffi::OsString;
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use std::path::PathBuf;
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use clap::{arg, Command};
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fn cli() -> Command<'static> {
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Command::new("git")
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.about("A fictional versioning CLI")
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.subcommand_required(true)
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.arg_required_else_help(true)
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.allow_external_subcommands(true)
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.subcommand(
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Command::new("clone")
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.about("Clones repos")
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.arg(arg!(<REMOTE> "The remote to clone"))
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.arg_required_else_help(true),
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)
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.subcommand(
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Command::new("push")
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.about("pushes things")
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.arg(arg!(<REMOTE> "The remote to target"))
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.arg_required_else_help(true),
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)
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.subcommand(
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Command::new("add")
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.about("adds things")
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.arg_required_else_help(true)
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.arg(arg!(<PATH> ... "Stuff to add").value_parser(clap::value_parser!(PathBuf))),
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)
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.subcommand(
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Command::new("stash")
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.args_conflicts_with_subcommands(true)
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.args(push_args())
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.subcommand(Command::new("push").args(push_args()))
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.subcommand(Command::new("pop").arg(arg!([STASH])))
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.subcommand(Command::new("apply").arg(arg!([STASH]))),
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)
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}
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fn push_args() -> Vec<clap::Arg<'static>> {
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vec![arg!(-m --message <MESSAGE>).required(false)]
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}
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fn main() {
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let matches = cli().get_matches();
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match matches.subcommand() {
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Some(("clone", sub_matches)) => {
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println!(
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"Cloning {}",
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sub_matches.get_one::<String>("REMOTE").expect("required")
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);
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}
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Some(("push", sub_matches)) => {
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println!(
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"Pushing to {}",
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sub_matches.get_one::<String>("REMOTE").expect("required")
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);
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}
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Some(("add", sub_matches)) => {
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let paths = sub_matches
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.get_many::<PathBuf>("PATH")
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.into_iter()
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.flatten()
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.collect::<Vec<_>>();
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println!("Adding {:?}", paths);
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}
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Some(("stash", sub_matches)) => {
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let stash_command = sub_matches.subcommand().unwrap_or(("push", sub_matches));
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match stash_command {
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("apply", sub_matches) => {
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let stash = sub_matches.get_one::<String>("STASH");
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println!("Applying {:?}", stash);
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}
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("pop", sub_matches) => {
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let stash = sub_matches.get_one::<String>("STASH");
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println!("Popping {:?}", stash);
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}
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("push", sub_matches) => {
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let message = sub_matches.get_one::<String>("message");
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println!("Pushing {:?}", message);
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}
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(name, _) => {
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unreachable!("Unsupported subcommand `{}`", name)
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}
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}
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}
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Some((ext, sub_matches)) => {
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let args = sub_matches
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.get_many::<OsString>("")
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.into_iter()
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.flatten()
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.collect::<Vec<_>>();
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println!("Calling out to {:?} with {:?}", ext, args);
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}
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_ => unreachable!(), // If all subcommands are defined above, anything else is unreachabe!()
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}
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// Continued program logic goes here...
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}
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