Flip importas configuration

.golangci.example.yml

@@ -410,13 +410,13 @@ linters-settings:
     # List of aliases
     alias:
       # using `servingv1` alias for `knative.dev/serving/pkg/apis/serving/v1` package
-      servingv1: knative.dev/serving/pkg/apis/serving/v1
+      knative.dev/serving/pkg/apis/serving/v1: servingv1
       # using `autoscalingv1alpha1` alias for `knative.dev/serving/pkg/apis/autoscaling/v1alpha1` package
-      autoscalingv1alpha1: knative.dev/serving/pkg/apis/autoscaling/v1alpha1
+      knative.dev/serving/pkg/apis/autoscaling/v1alpha1: autoscalingv1alpha1
       # You can specify the package path by regular expression,
       # and alias by regular expression expansion syntax like below.
       # see https://github.com/julz/importas#use-regular-expression for details
-      "$1$2": 'knative.dev/serving/pkg/apis/(\w+)/(v[\w\d]+)'
+      'knative.dev/serving/pkg/apis/(\w+)/(v[\w\d]+)': '$1$2'
 
   lll:
     # max line length, lines longer will be reported. Default is 120.

pkg/golinters/importas.go

@@ -33,7 +33,7 @@ func NewImportAs(settings *config.ImportAsSettings) *goanalysis.Linter {
 			lintCtx.Log.Errorf("failed to parse configuration: %v", err)
 		}
 
-		for alias, pkg := range settings.Alias {
+		for pkg, alias := range settings.Alias {
 			err := analyzer.Flags.Set("alias", fmt.Sprintf("%s:%s", pkg, alias))
 			if err != nil {
 				lintCtx.Log.Errorf("failed to parse configuration: %v", err)

test/testdata/configs/importas.yml

@@ -1,5 +1,5 @@
 linters-settings:
   importas:
     alias:
-      fff: fmt
-      std_os: os
+      fmt: fff
+      os: std_os

test/testdata/configs/importas_noalias.yml

@@ -1,4 +1,4 @@
 linters-settings:
   importas:
-    fff: fmt
-    std_os: os
+    fmt: fff
+    os: std_os

test/testdata/configs/importas_strict.yml

@@ -2,5 +2,5 @@ linters-settings:
   importas:
     no-unaliased: true
     alias:
-      fff: fmt
-      std_os: os
+      fmt: fff
+      os: std_os