resolve require path

crates/lune-std/src/globals/require/mod.rs

@@ -1,5 +1,38 @@
+use std::path::PathBuf;
+
 use mlua::prelude::*;
 
-pub fn create(lua: &Lua) -> LuaResult<LuaValue> {
+use crate::{luaurc::path_to_alias, path::get_parent_path};
-    todo!()
+
+pub async fn lua_require(lua: &Lua, path: String) -> LuaResult<LuaMultiValue> {
+    let require_path_rel = PathBuf::from(path);
+    let require_alias = path_to_alias(&require_path_rel)?;
+
+    if let Some(require_alias) = require_alias {
+        if require_alias.alias == "lune" {
+            Err(LuaError::runtime(format!(
+                "Tried requiring a lune library '{}'\nbut aliases are not implemented yet.",
+                require_alias.path,
+            )))
+        } else {
+            Err(LuaError::runtime(format!(
+                "Tried requiring a custom alias '{}'\nbut aliases are not implemented yet.",
+                require_alias.alias,
+            )))
+        }
+    } else {
+        let parent_path = get_parent_path(lua)?;
+        let require_path_abs = parent_path.join(require_path_rel);
+
+        Err(LuaError::runtime(format!(
+            "Tried requiring '{}'\nbut requires are not implemented yet.",
+            require_path_abs.to_string_lossy(),
+        )))
+    }
+}
+
+pub fn create(lua: &Lua) -> LuaResult<LuaValue> {
+    let f = lua.create_async_function(lua_require)?;
+
+    f.into_lua(lua)
 }

crates/lune-std/src/luaurc.rs

@@ -26,7 +26,7 @@ pub struct Luaurc {
 /// `@lune/task` becomes `Some({ alias: "lune", path: "task" })`
 ///
 /// `../path/script` becomes `None`
-pub fn path_to_alias(path: &Path) -> Result<Option<RequireAlias>, mlua::Error> {
+pub fn path_to_alias(path: &Path) -> Result<Option<RequireAlias<'_>>, mlua::Error> {
     if let Some(aliased_path) = path
         .to_str()
         .ok_or(mlua::Error::runtime("Couldn't turn path into string"))?