Rename modules directory

modules/nixvim/edit-alternate/config.nix

@@ -0,0 +1,59 @@
+{
+  flake.modules.nixvim.custom.extraConfigLua = ''
+    local add_rule = function(ft, fn)
+      vim.fn["edit_alternate#rule#add"](ft, fn)
+    end
+
+    add_rule("go", function(filename)
+      return filename:find "_test%.go$"
+        and filename:gsub("_test%.go$", ".go")
+        or filename:gsub("%.go$", "_test.go")
+    end)
+
+    add_rule("php", function(filename)
+      if filename:find "Test.php$" then
+        filename = filename:gsub("Test.php$", ".php")
+
+        return filename:find "tests/src/"
+          and filename:gsub("tests/src/(.-)/", "src/")
+          or filename:gsub("tests/", "src/")
+      else
+        local test_filename = filename:gsub("%.php$", "Test.php")
+
+        if test_filename:find "modules/custom" then
+          local test_types = { "Functional", "FunctionalJavaScript", "Kernel", "Unit" }
+
+          for _, test_type in ipairs(test_types) do
+            local candidate = test_filename:gsub("src/", string.format("tests/src/%s/", test_type))
+
+            if vim.fn.filereadable(candidate) == 1 then
+              return candidate
+            end
+          end
+        end
+
+        return test_filename
+      end
+    end)
+
+    if vim.fn.filereadable "composer.json" == 1 then
+      add_rule("json", function(filename)
+        return filename:find "composer.json" and filename:gsub("%.json$", ".lock") or nil
+      end)
+
+      add_rule("lock", function(filename)
+        return filename:find "composer.lock" and filename:gsub("%.lock$", ".json") or nil
+      end)
+    end
+
+    if vim.fn.filereadable "fractal.config.js" == 1 then
+      add_rule("twig", function(filename)
+        return filename:gsub("%.twig$", ".config.yml")
+      end)
+
+      add_rule("yml", function(filename)
+        return filename:gsub("%.config.yml$", ".twig")
+      end)
+    end
+  '';
+}