From 7f451136fc50e624cfba7873d69bdb7cd409aaf9 Mon Sep 17 00:00:00 2001
From: Oliver Davies <oliver@oliverdavies.uk>
Date: Tue, 29 Jul 2025 22:11:34 +0100
Subject: [PATCH] nixvim: add alternate files for *.go and *_test.go

---
 modules2/nixvim/edit-alternate/config.nix | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/modules2/nixvim/edit-alternate/config.nix b/modules2/nixvim/edit-alternate/config.nix
index a086c694..4006ff14 100644
--- a/modules2/nixvim/edit-alternate/config.nix
+++ b/modules2/nixvim/edit-alternate/config.nix
@@ -1,5 +1,13 @@
 {
   flake.modules.nixvim.custom.extraConfigLua = ''
+    vim.fn["edit_alternate#rule#add"]("go", function(filename)
+      if filename:find "_test%.go$" then
+        return filename:gsub("_test%.go$", ".go")
+      else
+        return filename:gsub("%.go$", "_test.go")
+      end
+    end)
+
     vim.fn["edit_alternate#rule#add"]("php", function(filename)
       if filename:find "Test.php$" then
         filename = filename:gsub("Test.php$", ".php")