feat: add hostname1-zbus

hostname1/examples/hostnamectl.rs

@@ -0,0 +1,67 @@
+use std::process::ExitCode;
+
+#[tokio::main]
+async fn main() -> Result<ExitCode, Box<dyn std::error::Error>> {
+	let connection = zbus::Connection::system().await?;
+	let proxy = hostname1_zbus::Hostname1Proxy::new(&connection).await?;
+
+	let mut parser = pico_args::Arguments::from_env();
+
+	match parser.subcommand()?.as_deref() {
+		Some("hostname") => match parser.subcommand()?.as_deref() {
+			Some("set") => match parser.free_from_str::<String>().ok().as_deref() {
+				Some(new_hostname) => {
+					if let Err(why) = proxy.set_hostname(&new_hostname, false).await {
+						eprintln!("error: could not set hostname: {why}");
+						return Ok(ExitCode::FAILURE);
+					}
+				}
+
+				None => {
+					eprintln!("error: hostname argument not set");
+					return Ok(ExitCode::FAILURE);
+				}
+			},
+
+			_ => {
+				println!("{}", proxy.hostname().await?);
+			}
+		},
+
+		Some("static-hostname") => match parser.subcommand()?.as_deref() {
+			Some("set") => match parser.free_from_str::<String>().ok().as_deref() {
+				Some(new_hostname) => {
+					if let Err(why) = proxy.set_static_hostname(&new_hostname, false).await {
+						eprintln!("error: could not set hostname: {why}");
+						return Ok(ExitCode::FAILURE);
+					}
+				}
+
+				None => {
+					eprintln!("error: hostname argument not set");
+					return Ok(ExitCode::FAILURE);
+				}
+			},
+
+			_ => {
+				println!("{}", proxy.static_hostname().await?);
+			}
+		},
+
+		_ => print_help(),
+	}
+
+	Ok(ExitCode::SUCCESS)
+}
+
+fn print_help() {
+	println!(
+		"\
+hostnamectl
+
+USAGE:
+    hostnamectl hostname
+    hostnamectl hostname set NAME
+"
+	);
+}