mirror of
https://github.com/clap-rs/clap
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118 lines
3.6 KiB
Rust
118 lines
3.6 KiB
Rust
//! Example to test arguments with different ValueHint values.
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//!
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//! Usage with zsh:
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//! ```sh
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//! cargo run --example value_hints -- --generate=zsh > /usr/local/share/zsh/site-functions/_value_hints
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//! compinit
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//! ./target/debug/examples/value_hints --<TAB>
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//! ```
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//! fish:
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//! ```sh
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//! cargo run --example value_hints -- --generate=fish > value_hints.fish
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//! . ./value_hints.fish
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//! ./target/debug/examples/value_hints --<TAB>
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//! ```
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use clap::{App, AppSettings, Arg, ValueHint};
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use clap_generate::generators::{Bash, Elvish, Fish, PowerShell, Zsh};
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use clap_generate::{generate, Generator};
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use std::io;
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fn build_cli() -> App<'static> {
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App::new("value_hints")
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.setting(AppSettings::DisableVersionFlag)
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// AppSettings::TrailingVarArg is required to use ValueHint::CommandWithArguments
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.setting(AppSettings::TrailingVarArg)
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.arg(Arg::new("generator").long("generate").possible_values(&[
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"bash",
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"elvish",
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"fish",
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"powershell",
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"zsh",
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]))
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.arg(
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Arg::new("unknown")
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.long("unknown")
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.value_hint(ValueHint::Unknown),
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)
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.arg(Arg::new("other").long("other").value_hint(ValueHint::Other))
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.arg(
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Arg::new("path")
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.long("path")
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.short('p')
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.value_hint(ValueHint::AnyPath),
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)
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.arg(
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Arg::new("file")
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.long("file")
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.short('f')
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.value_hint(ValueHint::FilePath),
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)
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.arg(
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Arg::new("dir")
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.long("dir")
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.short('d')
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.value_hint(ValueHint::DirPath),
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)
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.arg(
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Arg::new("exe")
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.long("exe")
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.short('e')
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.value_hint(ValueHint::ExecutablePath),
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)
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.arg(
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Arg::new("cmd_name")
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.long("cmd-name")
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.value_hint(ValueHint::CommandName),
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)
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.arg(
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Arg::new("cmd")
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.long("cmd")
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.short('c')
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.value_hint(ValueHint::CommandString),
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)
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.arg(
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Arg::new("command_with_args")
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.takes_value(true)
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.multiple_values(true)
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.value_hint(ValueHint::CommandWithArguments),
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)
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.arg(
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Arg::new("user")
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.short('u')
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.long("user")
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.value_hint(ValueHint::Username),
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)
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.arg(
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Arg::new("host")
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.short('h')
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.long("host")
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.value_hint(ValueHint::Hostname),
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)
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.arg(Arg::new("url").long("url").value_hint(ValueHint::Url))
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.arg(
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Arg::new("email")
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.long("email")
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.value_hint(ValueHint::EmailAddress),
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)
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}
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fn print_completions<G: Generator>(app: &mut App) {
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generate::<G, _>(app, app.get_name().to_string(), &mut io::stdout());
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}
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fn main() {
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let matches = build_cli().get_matches();
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if let Some(generator) = matches.value_of("generator") {
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let mut app = build_cli();
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eprintln!("Generating completion file for {}...", generator);
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match generator {
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"bash" => print_completions::<Bash>(&mut app),
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"elvish" => print_completions::<Elvish>(&mut app),
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"fish" => print_completions::<Fish>(&mut app),
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"powershell" => print_completions::<PowerShell>(&mut app),
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"zsh" => print_completions::<Zsh>(&mut app),
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_ => panic!("Unknown generator"),
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}
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}
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}
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