fix: Layout config not being respected. (fixes #268)

Author: sindrets

lua/diffview/scene/views/diff/diff_view.lua

@@ -284,7 +284,7 @@ DiffView.get_updated_files = async.wrap(function(self, callback)
       self.path_args,
       self.options,
       {
-        default_layout = DiffView.get_default_diff2(),
+        default_layout = DiffView.get_default_layout(),
         merge_layout = DiffView.get_default_merge_layout(),
       },
       callback

lua/diffview/scene/views/file_history/file_history_panel.lua

@@ -278,7 +278,7 @@ function FileHistoryPanel:update_entries(callback)
 
   finalizer = self.adapter:file_history(
     self.log_options,
-    { default_layout = self.parent.get_default_diff2(), },
+    { default_layout = self.parent.get_default_layout(), },
     update
   )
 

lua/diffview/scene/views/file_history/file_history_view.lua

@@ -214,5 +214,17 @@ function FileHistoryView.get_default_layout_name()
   return config.get_config().view.file_history.layout
 end
 
+---@override
+---@return Layout # (class) The default layout class.
+function FileHistoryView.get_default_layout()
+  local name = FileHistoryView.get_default_layout_name()
+
+  if name == -1 then
+    return FileHistoryView.get_default_diff2()
+  end
+
+  return config.name_to_layout(name --[[@as string ]])
+end
+
 M.FileHistoryView = FileHistoryView
 return M