29 lines
998 B
Rust
29 lines
998 B
Rust
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//! Example using Repl with a custom error type.
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use reedline_repl_rs::clap::{Arg, ArgMatches, Command};
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use reedline_repl_rs::{Repl, Result};
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/// Write "Hello" with given name
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async fn hello<T>(args: ArgMatches, _context: &mut T) -> Result<Option<String>> {
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Ok(Some(format!("Hello, {}", args.value_of("who").unwrap())))
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}
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/// Called after successful command execution, updates prompt with returned Option
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async fn update_prompt<T>(_context: &mut T) -> Result<Option<String>> {
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Ok(Some("updated".to_string()))
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}
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#[tokio::main]
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async fn main() -> Result<()> {
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let mut repl = Repl::new(())
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.with_name("MyApp")
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.with_version("v0.1.0")
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.with_command_async(
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Command::new("hello")
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.arg(Arg::new("who").required(true))
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.about("Greetings!"),
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|args, context| Box::pin(hello(args, context)),
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)
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.with_on_after_command_async(|context| Box::pin(update_prompt(context)));
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repl.run_async().await
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}
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