1 files changed, 26 insertions, 0 deletions
diff --git a/helix-loader/src/config.rs b/helix-loader/src/config.rs
new file mode 100644
index 00000000..3d71baed
--- /dev/null
+++ b/helix-loader/src/config.rs
@@ -0,0 +1,26 @@
+/// Default bultin-in languages.toml.
+pub fn default_lang_config() -> toml::Value {
+    toml::from_slice(include_bytes!("../../languages.toml"))
+        .expect("Could not parse bultin-in languages.toml to valid toml")
+}
+
+/// User configured languages.toml file, merged with the default config.
+pub fn user_lang_config() -> Result<toml::Value, toml::de::Error> {
+    let config = crate::local_config_dirs()
+        .into_iter()
+        .chain([crate::config_dir()].into_iter())
+        .map(|path| path.join("languages.toml"))
+        .filter_map(|file| {
+            std::fs::read(&file)
+                .map(|config| toml::from_slice(&config))
+                .ok()
+        })
+        .collect::<Result<Vec<_>, _>>()?
+        .into_iter()
+        .chain([default_lang_config()].into_iter())
+        .fold(toml::Value::Table(toml::value::Table::default()), |a, b| {
+            crate::merge_toml_values(b, a)
+        });
+
+    Ok(config)
+}