Add -V/--verbose

src/cli.rs

@@ -5,6 +5,10 @@ use argh::FromArgs;
 #[derive(FromArgs)]
 /// Lightweight process killer daemon for out-of-memory scenarios
 pub struct CommandLineArgs {
+    /// toggles on verbose output
+    #[argh(switch, short = 'V')]
+    pub verbose: bool,
+
     /// when set, bustd will kill the victim's entire process group
     #[argh(switch, short = 'g')]
     pub group: bool,

src/main.rs

@@ -37,6 +37,7 @@ fn main() -> error::Result<()> {
 
     if !args.no_daemon {
         // Daemonize current process
+        println!("\nStarting daemonization process!");
         daemon::daemonize()?;
     }
 

src/monitor.rs

@@ -127,7 +127,9 @@ impl Monitor {
 
             // Calculating the adaptive sleep time
             let sleep_time = self.sleep_time_ms();
-            eprintln!("Sleeping {}ms", sleep_time.as_millis());
+            if self.args.verbose {
+                eprintln!("[adaptive-sleep] {}ms", sleep_time.as_millis());
+            }
 
             std::thread::sleep(sleep_time);
         }