dont do things by default

src/main.rs

@@ -28,9 +28,7 @@ fn main() {
    let flags = Flags::parse();
 
    add(&flags.f, &flags.add, &flags.tag).unwrap();
-   log(&flags.f, &flags.since).unwrap();
-
-   println!("{:?}", flags);
+   log(&flags.f, &flags.log, &flags.since).unwrap();
 }
 
 fn add(f: &String, x: &Option<String>, tag: &Option<String>) -> Result<(), String> {
@@ -60,7 +58,10 @@ struct LogX {
    x: String,
 }
 
-fn log(f: &String, since: &Option<String>) -> Result<(), String> {
+fn log(f: &String, enabled: &bool, since: &Option<String>) -> Result<(), String> {
+   if !enabled {
+      return Ok(());
+   }
    let since = parse_time(since)?;
    let tsheet = load(&f)?;
    let tsheet = tsheet.since(since);