use indexmap for help menu

Author: tinaun

Cargo.lock

@@ -18,3 +18,4 @@ lazy_static = "1.4.0"
 log = "0.4.0"
 env_logger = "0.7.1"
 envy = "0.4"
+indexmap = "1.3"

Cargo.toml

@@ -2,6 +2,7 @@ use crate::{
     api,
     state_machine::{CharacterSet, StateMachine},
 };
+use indexmap::IndexMap;
 use reqwest::blocking::Client as HttpClient;
 use serenity::{model::channel::Message, prelude::Context};
 use std::{collections::HashMap, sync::Arc};
@@ -35,15 +36,15 @@ pub struct Args<'m> {
 pub(crate) struct Commands {
     state_machine: StateMachine<Arc<Command>>,
     client: HttpClient,
-    menu: Option<HashMap<&'static str, (&'static str, GuardFn)>>,
+    menu: Option<IndexMap<&'static str, (&'static str, GuardFn)>>,
 }
 
 impl Commands {
     pub(crate) fn new() -> Self {
         Self {
             state_machine: StateMachine::new(),
             client: HttpClient::new(),
-            menu: Some(HashMap::new()),
+            menu: Some(IndexMap::new()),
         }
     }
 
@@ -168,7 +169,7 @@ impl Commands {
         );
     }
 
-    pub(crate) fn menu(&mut self) -> Option<HashMap<&'static str, (&'static str, GuardFn)>> {
+    pub(crate) fn menu(&mut self) -> Option<IndexMap<&'static str, (&'static str, GuardFn)>> {
         self.menu.take()
     }
 

src/commands.rs

@@ -25,7 +25,7 @@ use diesel::prelude::*;
 use envy;
 use serde::Deserialize;
 use serenity::{model::prelude::*, prelude::*};
-use std::collections::HashMap;
+use indexmap::IndexMap;
 
 #[derive(Deserialize)]
 struct Config {
@@ -192,7 +192,7 @@ fn app() -> Result<()> {
     Ok(())
 }
 
-fn main_menu(args: &Args, commands: &HashMap<&str, (&str, GuardFn)>) -> String {
+fn main_menu(args: &Args, commands: &IndexMap<&str, (&str, GuardFn)>) -> String {
     let mut menu = format!("Commands:\n");
 
     menu = commands