refactor: diff module (#213)

.golangci.yaml

@@ -25,15 +25,13 @@ linters:
     - nakedret
     - nestif
     - nilerr
-    - nlreturn
     - prealloc
     - revive
     - staticcheck
     - typecheck
     - unconvert
     - unused
     - whitespace
-    - wsl
 
 linters-settings:
   gocognit:

cmd/root.go

@@ -139,7 +139,7 @@ func run(cmd *cobra.Command, _ []string) {
 
 	logger.Info.Println("diffing")
 
-	dr, err := diff.Run(ctx, logger, gr, rr)
+	dr, err := diff.Run(rr, gr)
 	if err != nil {
 		logger.Error.Fatalf("error diffing: %s", err)
 	}

go.mod

@@ -8,16 +8,19 @@ require (
 	github.com/mitchellh/copystructure v1.2.0
 	github.com/spf13/cobra v1.8.1
 	github.com/spf13/pflag v1.0.5
+	github.com/stretchr/testify v1.9.0
 	golang.org/x/exp v0.0.0-20240604190554-fc45aab8b7f8
 	golang.org/x/net v0.30.0
 	golang.org/x/sync v0.8.0
 	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/fsnotify/fsnotify v1.5.4 // indirect
 	github.com/hashicorp/go-cleanhttp v0.5.2 // indirect
 	github.com/hashicorp/go-retryablehttp v0.7.7 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/mitchellh/reflectwalk v1.0.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 )

internal/convert/convert_test.go

@@ -451,7 +451,7 @@ func TestUserConfigSchema(t *testing.T) {
 			}
 
 			if !cmp.Equal(got, tt.want) {
-				t.Errorf(cmp.Diff(tt.want, got))
+				t.Error(cmp.Diff(tt.want, got))
 			}
 		})
 	}