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Warn the user if using an unstable option without --unstable-options

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Fixes #2796
This commit is contained in:
Nick Cameron 2018-07-31 10:02:32 +12:00
parent 3c20d8a9e6
commit d43874113e
1 changed files with 19 additions and 0 deletions
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19
src/bin/main.rs
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@ -473,6 +473,25 @@ impl GetOptsOptions {
if let Some(ref file_lines) = matches.opt_str("file-lines") {
options.file_lines = file_lines.parse().map_err(err_msg)?;
}
} else {
let mut unstable_options = vec![];
if matches.opt_present("skip-children") {
unstable_options.push("`--skip-children`");
}
if matches.opt_present("error-on-unformatted") {
unstable_options.push("`--error-on-unformatted`");
}
if matches.opt_present("file-lines") {
unstable_options.push("`--file-lines`");
}
if !unstable_options.is_empty() {
let s = if unstable_options.len() == 1 { "" } else { "s" };
return Err(format_err!(
"Unstable option{} ({}) used without `--unstable-features`",
s,
unstable_options.join(", "),
));
}
}
options.config_path = matches.opt_str("config-path").map(PathBuf::from);