cache config in package.cm

package.cm

@@ -2,9 +2,13 @@ var package = {}
 
 var fd = use('fd')
 var toml = use('toml')
+var json = use('json')
 var os = use('os')
 var link = use('link')
 
+// Cache for loaded configs to avoid toml re-parsing corruption
+var config_cache = {}
+
 // Convert package name to a safe directory name
 // For absolute paths (local packages), replace / with _ 
 // For remote packages, keep slashes as they use nested directories
@@ -42,6 +46,11 @@ function get_path(name)
 package.load_config = function(name)
 {
   var config_path = get_path(name) + '/cell.toml'
+
+  // Return cached config if available
+  if (config_cache[config_path])
+    return config_cache[config_path]
+
   if (!fd.is_file(config_path))
     throw Error(`${config_path} does not exist`)
 
@@ -54,6 +63,10 @@ package.load_config = function(name)
     return {}
   }
 
+  // Deep copy to avoid toml module's shared state bug and cache it
+  result = json.decode(json.encode(result))
+  config_cache[config_path] = result
+
   return result
 }