Move functionality to own functions

imag-todo/src/main.rs

@@ -46,7 +46,14 @@ fn main() {
 
     let scmd = rt.cli().subcommand_name();
     match scmd {
-        Some("tw-hook") => {
+        Some("tw-hook") => tw_hook(&rt),
+        Some("exec") => exec(&rt),
+        Some("list") => list(&rt),
+        _ => unimplemented!(),
+    } // end match scmd
+} // end main
+
+fn tw_hook(rt: &Runtime) {
     let subcmd = rt.cli().subcommand_matches("tw-hook").unwrap();
     if subcmd.is_present("add") {
         let stdin = stdin();
@@ -134,8 +141,9 @@ fn main() {
         // ArgGroup
         unreachable!();
     }
-        },
-        Some("exec") => {
+}
+
+fn exec(rt: &Runtime) {
     let subcmd = rt.cli().subcommand_matches("exec").unwrap();
     let mut args = Vec::new();
     if let Some(exec_string) = subcmd.values_of("command") {
@@ -157,7 +165,8 @@ fn main() {
         panic!("faild to execute: You need to exec --command");
     }
 }
-        Some("list") => {
+
+fn list(rt: &Runtime) {
     let subcmd = rt.cli().subcommand_matches("list").unwrap();
     let mut args = Vec::new();
     let verbose = subcmd.is_present("verbose");
@@ -216,7 +225,4 @@ fn main() {
         } // end match task
     } // end for
 }
-        _ => unimplemented!(),
-    } // end match scmd
-} // end main