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https://github.com/comit-network/xmr-btc-swap.git
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CLI --help
and --version
are handled correctly
Since we introduced our own parsing function for command line arguments, we have to make sure that clap's behaviour is handled correctly. Clap's `get_matches_from_safe` returns an error of a certain kind, of which `ErrorKind::HelpDisplayed` and `ErrorKind::VersionDisplayed ` have to be handled to properly print the help/version and exit the program. The clap error includes the message, so we print help/version in main now and ensure the program exits with `0` afterwards.
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parent
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@ -20,6 +20,8 @@ use std::future::Future;
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use std::path::PathBuf;
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use std::sync::Arc;
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use std::time::Duration;
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use structopt::clap;
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use structopt::clap::ErrorKind;
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use swap::bitcoin::TxLock;
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use swap::cli::command::{parse_args_and_apply_defaults, Arguments, Command};
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use swap::database::Database;
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@ -44,7 +46,23 @@ async fn main() -> Result<()> {
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data_dir,
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debug,
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cmd,
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} = parse_args_and_apply_defaults(env::args_os())?;
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} = match parse_args_and_apply_defaults(env::args_os()) {
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Ok(args) => args,
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Err(e) => {
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if let Some(clap_err) = e.downcast_ref::<clap::Error>() {
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match clap_err.kind {
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ErrorKind::HelpDisplayed | ErrorKind::VersionDisplayed => {
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println!("{}", clap_err.message);
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std::process::exit(0);
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}
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_ => {
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bail!(e);
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}
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}
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}
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bail!(e);
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}
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};
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match cmd {
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Command::BuyXmr {
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