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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-17 12:02:58 +0000 |
commit | 698f8c2f01ea549d77d7dc3338a12e04c11057b9 (patch) | |
tree | 173a775858bd501c378080a10dca74132f05bc50 /vendor/clap/examples/git.rs | |
parent | Initial commit. (diff) | |
download | rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.tar.xz rustc-698f8c2f01ea549d77d7dc3338a12e04c11057b9.zip |
Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r-- | vendor/clap/examples/git.rs | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/vendor/clap/examples/git.rs b/vendor/clap/examples/git.rs new file mode 100644 index 000000000..5536f1487 --- /dev/null +++ b/vendor/clap/examples/git.rs @@ -0,0 +1,103 @@ +// Note: this requires the `cargo` feature + +use std::ffi::OsString; +use std::path::PathBuf; + +use clap::{arg, Command}; + +fn cli() -> Command<'static> { + Command::new("git") + .about("A fictional versioning CLI") + .subcommand_required(true) + .arg_required_else_help(true) + .allow_external_subcommands(true) + .allow_invalid_utf8_for_external_subcommands(true) + .subcommand( + Command::new("clone") + .about("Clones repos") + .arg(arg!(<REMOTE> "The remote to clone")) + .arg_required_else_help(true), + ) + .subcommand( + Command::new("push") + .about("pushes things") + .arg(arg!(<REMOTE> "The remote to target")) + .arg_required_else_help(true), + ) + .subcommand( + Command::new("add") + .about("adds things") + .arg_required_else_help(true) + .arg(arg!(<PATH> ... "Stuff to add").value_parser(clap::value_parser!(PathBuf))), + ) + .subcommand( + Command::new("stash") + .args_conflicts_with_subcommands(true) + .args(push_args()) + .subcommand(Command::new("push").args(push_args())) + .subcommand(Command::new("pop").arg(arg!([STASH]))) + .subcommand(Command::new("apply").arg(arg!([STASH]))), + ) +} + +fn push_args() -> Vec<clap::Arg<'static>> { + vec![arg!(-m --message <MESSAGE>).required(false)] +} + +fn main() { + let matches = cli().get_matches(); + + match matches.subcommand() { + Some(("clone", sub_matches)) => { + println!( + "Cloning {}", + sub_matches.get_one::<String>("REMOTE").expect("required") + ); + } + Some(("push", sub_matches)) => { + println!( + "Pushing to {}", + sub_matches.get_one::<String>("REMOTE").expect("required") + ); + } + Some(("add", sub_matches)) => { + let paths = sub_matches + .get_many::<PathBuf>("PATH") + .into_iter() + .flatten() + .collect::<Vec<_>>(); + println!("Adding {:?}", paths); + } + Some(("stash", sub_matches)) => { + let stash_command = sub_matches.subcommand().unwrap_or(("push", sub_matches)); + match stash_command { + ("apply", sub_matches) => { + let stash = sub_matches.get_one::<String>("STASH"); + println!("Applying {:?}", stash); + } + ("pop", sub_matches) => { + let stash = sub_matches.get_one::<String>("STASH"); + println!("Popping {:?}", stash); + } + ("push", sub_matches) => { + let message = sub_matches.get_one::<String>("message"); + println!("Pushing {:?}", message); + } + (name, _) => { + unreachable!("Unsupported subcommand `{}`", name) + } + } + } + Some((ext, sub_matches)) => { + let args = sub_matches + .get_many::<OsString>("") + .into_iter() + .flatten() + .collect::<Vec<_>>(); + println!("Calling out to {:?} with {:?}", ext, args); + } + _ => unreachable!(), // If all subcommands are defined above, anything else is unreachabe!() + } + + // Continued program logic goes here... +} |