2 files changed, 18 insertions, 0 deletions

diff --git a/src/app/impl_self.rs b/src/app/impl_self.rs
index 1ed19e6..a806dc5 100644
--- a/src/app/impl_self.rs
+++ b/src/app/impl_self.rs
@@ -217,6 +217,12 @@ impl App {
         match result {
             Ok(c) => match c {
                 Command::Add(name, goal, auto) => {
+                    if let Some(_) = self.habits.iter().find(|x| x.name() == name) {
+                        self.message.set_kind(MessageKind::Error);
+                        self.message
+                            .set_message(format!("Habit `{}` already exist", &name));
+                        return;
+                    }
                     let kind = if goal == Some(1) { "bit" } else { "count" };
                     if kind == "count" {
                         self.add_habit(Box::new(Count::new(name, goal.unwrap_or(0), auto)));
diff --git a/src/main.rs b/src/main.rs
index d96119e..5523073 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -33,6 +33,14 @@ fn main() {
                 .value_name("CMD")
                 .help("run a dijo command"),
         )
+        .arg(
+            Arg::with_name("list")
+                .short("l")
+                .long("list")
+                .takes_value(false)
+                .help("list dijo habits")
+                .conflicts_with("command"),
+        )
         .get_matches();
     if let Some(c) = matches.value_of("command") {
         let command = Command::from_string(c);
@@ -49,6 +57,10 @@ fn main() {
                 "Commands other than `track-up` and `track-down` are currently not supported!"
             ),
         }
+    } else if matches.is_present("list") {
+        for h in App::load_state().list_habits() {
+            println!("{}", h);
+        }
     } else {
         let mut s = termion().unwrap();
         let app = App::load_state();