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https://github.com/clap-rs/clap
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d840d5650e
Before #2005, `Clap` was a special trait that derived all clap traits it detected were relevant (including an enum getting both `ArgEnum`, `Clap`, and `Subcommand`). Now, we have elevated `Clap`, `Args`, `Subcommand`, and `ArgEnum` to be user facing but the name `Clap` isn't very descriptive. This also helps further clarify the relationships so a crate providing an item to be `#[clap(flatten)]` or `#[clap(subcommand)]` is more likely to choose the needed trait to derive. Also, my proposed fix fo #2785 includes making `App` attributes almost exclusively for `Clap`. Clarifying the names/roles will help communicate this. For prior discussion, see #2583
20 lines
534 B
Rust
20 lines
534 B
Rust
//! How to assign some aliases to subcommands
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use clap::{AppSettings, Parser};
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#[derive(Parser, Debug)]
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// https://docs.rs/clap/2/clap/enum.AppSettings.html#variant.InferSubcommands
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#[clap(setting = AppSettings::InferSubcommands)]
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enum Opt {
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// https://docs.rs/clap/2/clap/struct.App.html#method.alias
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#[clap(alias = "foobar")]
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Foo,
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// https://docs.rs/clap/2/clap/struct.App.html#method.aliases
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#[clap(aliases = &["baz", "fizz"])]
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Bar,
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}
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fn main() {
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let opt = Opt::parse();
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println!("{:?}", opt);
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}
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