Load config from file

src/config.rs

@@ -0,0 +1,23 @@
+//! Configuration from a file.
+
+use std::{fs, io::ErrorKind, path::Path};
+
+use serde::Deserialize;
+use tracing::info;
+
+#[derive(Debug, Default, Deserialize)]
+pub struct Config {}
+
+impl Config {
+    pub fn load(path: &Path) -> anyhow::Result<Self> {
+        info!("Loading config from {}", path.display());
+        Ok(match fs::read_to_string(path) {
+            Ok(str) => toml::from_str(&str)?,
+            Err(e) if e.kind() == ErrorKind::NotFound => {
+                info!("No config file found, using default config");
+                Self::default()
+            }
+            Err(e) => Err(e)?,
+        })
+    }
+}