config: extract Config into its own file

src/config.rs

@@ -0,0 +1,23 @@
+use matrix_sdk::identifiers::RoomId;
+use serde::Deserialize;
+use std::collections::HashSet;
+use std::path::PathBuf;
+use url::Url;
+
+/// Holds the configuration for the bot.
+#[derive(Clone, Deserialize)]
+pub struct Config {
+    /// The URL for the homeserver we should connect to
+    pub homeserver: Url,
+    /// The bot's account username
+    pub username: String,
+    /// The bot's account password
+    pub password: String,
+    /// Path to a directory where the bot will store Matrix state and current session information.
+    pub state_dir: PathBuf,
+    /// ID of the Matrix room where the bot should post messages. The bot will only accept
+    /// invitations to this room.
+    pub room_id: RoomId,
+    /// Units to watch for logs
+    pub units: HashSet<String>,
+}

src/main.rs

@@ -1,20 +1,18 @@
 use std::{
-    collections::HashSet,
     fs::File,
     io::{self, BufReader},
     path::PathBuf,
 };
 
 use clap::Clap;
-use matrix_sdk::identifiers::RoomId;
-use serde::Deserialize;
 use thiserror::Error;
-use url::Url;
 
 mod autojoin;
 mod bot;
+mod config;
 
 use bot::BadNewsBot;
+use config::Config;
 
 #[derive(Error, Debug)]
 enum BadNewsError {
@@ -32,24 +30,6 @@ struct Opts {
     config: PathBuf,
 }
 
-/// Holds the configuration for the bot.
-#[derive(Clone, Deserialize)]
-pub struct Config {
-    /// The URL for the homeserver we should connect to
-    homeserver: Url,
-    /// The bot's account username
-    username: String,
-    /// The bot's account password
-    password: String,
-    /// Path to a directory where the bot will store Matrix state and current session information.
-    state_dir: PathBuf,
-    /// ID of the Matrix room where the bot should post messages. The bot will only accept
-    /// invitations to this room.
-    room_id: RoomId,
-    /// Units to watch for logs
-    units: HashSet<String>,
-}
-
 #[tokio::main]
 async fn main() -> anyhow::Result<()> {
     tracing_subscriber::fmt::init();