Prototype JsonModelPlugin, untested

Also cleaned up all of the warnings in the other plugin code

src/plugins/json_model_plugin.rs

@@ -0,0 +1,52 @@
+use regex::Regex;
+use serde_json;
+
+use core::Route;
+use plugin::{Plugin, PluginChain, TransformFileResult, RbxChangeResult, FileChangeResult};
+use rbx::{RbxItem, RbxValue};
+use vfs::VfsItem;
+
+lazy_static! {
+    static ref JSON_MODEL_PATTERN: Regex = Regex::new(r"^(.*?)\.model\.json$").unwrap();
+}
+
+pub struct JsonModelPlugin;
+
+impl JsonModelPlugin {
+    pub fn new() -> JsonModelPlugin {
+        JsonModelPlugin
+    }
+}
+
+impl Plugin for JsonModelPlugin {
+    fn transform_file(&self, _plugins: &PluginChain, vfs_item: &VfsItem) -> TransformFileResult {
+        match vfs_item {
+            &VfsItem::File { ref contents, ref name } => {
+                let rbx_name = match JSON_MODEL_PATTERN.captures(name) {
+                    Some(captures) => captures.get(1).unwrap().as_str().to_string(),
+                    None => return TransformFileResult::Pass,
+                };
+
+                let mut rbx_item: RbxItem = match serde_json::from_str(contents) {
+                    Ok(v) => v,
+                    Err(_) => return TransformFileResult::Pass, // This should be an error in the future
+                };
+
+                rbx_item.properties.insert("Name".to_string(), RbxValue::String {
+                    value: rbx_name,
+                });
+
+                TransformFileResult::Value(Some(rbx_item))
+            },
+            &VfsItem::Dir { .. } => TransformFileResult::Pass,
+        }
+    }
+
+    fn handle_file_change(&self, _route: &Route) -> FileChangeResult {
+        FileChangeResult::Pass
+    }
+
+    fn handle_rbx_change(&self, _route: &Route, _rbx_item: &RbxItem) -> RbxChangeResult {
+        RbxChangeResult::Pass
+    }
+}