paths in config can now be relative to the file

src/types/root_config.rs

@@ -12,6 +12,7 @@ use crate::types::{ConfigReadWriteError, ModConfig, game::Game, modded_instance:
 #[derive(Debug, Clone, Deserialize)]
 pub struct RootConfig {
     /// Available games
+    #[serde(default)]
     games: HashMap<String, Game>,
 
     /// Where all mods are stored
@@ -23,6 +24,9 @@ pub struct RootConfig {
     /// All available mods
     #[serde(default)]
     mods: Vec<ModConfig>,
+
+    #[serde(skip)]
+    self_path: PathBuf,
 }
 
 impl RootConfig {
@@ -32,8 +36,14 @@ impl RootConfig {
             path.as_ref().to_string_lossy()
         );
 
-        let data = read_to_string(path)?;
-        let config = toml::from_str(&data)?;
+        let data = read_to_string(&path)?;
+        let mut config: Self = toml::from_str(&data)?;
+
+        config.self_path = path.as_ref().to_owned();
+
+        if config.mod_location.is_relative() {
+            config.mod_location = path.as_ref().join(config.mod_location).to_owned();
+        }
 
         Ok(config)
     }
@@ -52,7 +62,11 @@ impl RootConfig {
             .get(id)
             .ok_or(ConfigReadWriteError::IDNotFound)?;
 
-        ModdedInstance::load_from_file(&conf.path)
+        if conf.path.is_relative() {
+            ModdedInstance::load_from_file(self.self_path.join(&conf.path))
+        } else {
+            ModdedInstance::load_from_file(&conf.path)
+        }
     }
 
     pub fn mod_location(&self) -> &Path {