feat: use XDG_CONFIG_HOME

Signed-off-by: Christina Sørensen <christina@cafkafk.com>

src/main.rs

@@ -2,6 +2,7 @@ use std::{error::Error, path::PathBuf};
 
 mod config {
     use std::{
+        env,
         error::Error,
         fs,
         path::{Path, PathBuf},
@@ -35,7 +36,16 @@ mod config {
         /// Loads the configuration toml from a path into the Config struct.
         #[inline]
         pub fn new(path: PathBuf) -> Result<Self, Box<dyn Error>> {
-            let yaml = fs::read_to_string(path)?;
+            let yaml = match fs::read_to_string(path) {
+                Ok(content) => content,
+                _ => match fs::read_to_string(format!(
+                    "{}/hilsen/config.yaml",
+                    env::var("XDG_CONFIG_HOME").unwrap()
+                )) {
+                    Ok(content) => content,
+                    _ => panic!(),
+                },
+            };
 
             let config = serde_yaml::from_str(&yaml)?;
 
@@ -128,7 +138,7 @@ async fn main() -> Result<(), Box<dyn Error>> {
     if let Some(config_file) = matches.get_one::<PathBuf>("config") {
         config = config::Config::new(config_file.clone())?;
     } else {
-        panic!();
+        config = config::Config::new("".into())?;
     }
 
     if matches.get_flag("showConfigParse") {