Add external command execution

src/controller.rs

@@ -4,6 +4,7 @@ use crate::midi_client::KeyEvent;
 use crate::mpris_client;
 use crossbeam_channel::Receiver;
 use log::{error, info, warn};
+use std::process::{Command, Output};
 use std::sync::Arc;
 use std::thread;
 
@@ -92,7 +93,20 @@ fn eval(key: NanoKeys, state: u8, config: &Arc<Config>) {
                     },
                     KeyMapVariant::PipeWire { ids } => {}
                     KeyMapVariant::Key { keycode } => {}
-                    KeyMapVariant::Exec { command, args } => {}
+                    KeyMapVariant::Exec { command, args } => {
+                        let output: Result<Output, std::io::Error> = match args {
+                            Some(some_args) => Command::new(command).args(some_args).output(),
+                            None => Command::new(command).output(),
+                        };
+                        match output {
+                            Ok(out) => {
+                                info!("{:?}", out);
+                            }
+                            Err(err) => {
+                                error!("{:?}", err);
+                            }
+                        }
+                    }
                 }
             }
         }