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Merge pull request #6711 from paritytech/cli-unknownarguments-6485

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Graceful exit when invalid CLI flags are passed (#6485)
This commit is contained in:
Marek Kotewicz 2017-10-12 15:52:22 +02:00 committed by GitHub
commit fee68a5331
2 changed files with 15 additions and 4 deletions
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12
parity/cli/mod.rs
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@ -1201,6 +1201,7 @@ mod tests {
Snapshots, VM, Misc, Whisper, SecretStore,
};
use toml;
use clap::{ErrorKind as ClapErrorKind};
#[test]
fn should_parse_args_and_flags() {
@ -1217,6 +1218,17 @@ mod tests {
assert_eq!(args.arg_export_state_min_balance, Some("123".to_string()));
}
#[test]
fn should_exit_gracefully_on_unknown_argument() {
let result = Args::parse(&["parity", "--please-exit-gracefully"]);
assert!(
match result {
Err(ArgsError::Clap(ref clap_error)) if clap_error.kind == ClapErrorKind::UnknownArgument => true,
_ => false
}
);
}
#[test]
fn should_use_subcommand_arg_default() {
let args = Args::parse(&["parity", "export", "state", "--at", "123"]).unwrap();

7
parity/cli/usage.rs
View File

@ -537,21 +537,20 @@ macro_rules! usage {
let matches = App::new("Parity")
.global_setting(AppSettings::VersionlessSubcommands)
.global_setting(AppSettings::AllowLeadingHyphen) // allow for example --allow-ips -10.0.0.0/8
.global_setting(AppSettings::DisableHelpSubcommand)
.help(Args::print_help().as_ref())
.args(&usages.iter().map(|u| Arg::from_usage(u).use_delimiter(false)).collect::<Vec<Arg>>())
.args(&usages.iter().map(|u| Arg::from_usage(u).use_delimiter(false).allow_hyphen_values(true)).collect::<Vec<Arg>>())
$(
.subcommand(
SubCommand::with_name(&underscore_to_hyphen!(&stringify!($subc)[4..]))
.about($subc_help)
.args(&subc_usages.get(stringify!($subc)).unwrap().iter().map(|u| Arg::from_usage(u).use_delimiter(false)).collect::<Vec<Arg>>())
.args(&subc_usages.get(stringify!($subc)).unwrap().iter().map(|u| Arg::from_usage(u).use_delimiter(false).allow_hyphen_values(true)).collect::<Vec<Arg>>())
$(
.setting(AppSettings::SubcommandRequired) // prevent from running `parity account`
.subcommand(
SubCommand::with_name(&underscore_to_hyphen!(&stringify!($subc_subc)[stringify!($subc).len()+1..]))
.about($subc_subc_help)
.args(&subc_usages.get(stringify!($subc_subc)).unwrap().iter().map(|u| Arg::from_usage(u).use_delimiter(false)).collect::<Vec<Arg>>())
.args(&subc_usages.get(stringify!($subc_subc)).unwrap().iter().map(|u| Arg::from_usage(u).use_delimiter(false).allow_hyphen_values(true)).collect::<Vec<Arg>>())
)
)*
)