review: update implementation

Author: ldez

.golangci.reference.yml

@@ -1607,6 +1607,11 @@ linters-settings:
     # Regexp pattern to skip files.
     # Default: "(export|internal)_test\\.go"
     skip-regexp: (export|internal)_test\.go
+    # List of packages that don't end with _test that tests are allowed to be in.
+    # Default: "main"
+    allow-packages:
+      - example
+      - main
 
   thelper:
     test:

pkg/config/linters_settings.go

@@ -88,7 +88,8 @@ var defaultLintersSettings = LintersSettings{
 		Qualified: false,
 	},
 	Testpackage: TestpackageSettings{
-		SkipRegexp: `(export|internal)_test\.go`,
+		SkipRegexp:    `(export|internal)_test\.go`,
+		AllowPackages: []string{"main"},
 	},
 	Unparam: UnparamSettings{
 		Algo: "cha",
@@ -558,7 +559,8 @@ type TagliatelleSettings struct {
 }
 
 type TestpackageSettings struct {
-	SkipRegexp string `mapstructure:"skip-regexp"`
+	SkipRegexp    string   `mapstructure:"skip-regexp"`
+	AllowPackages []string `mapstructure:"allow-packages"`
 }
 
 type ThelperSettings struct {

pkg/golinters/testpackage.go

@@ -1,6 +1,8 @@
 package golinters
 
 import (
+	"strings"
+
 	"github.com/maratori/testpackage/pkg/testpackage"
 	"golang.org/x/tools/go/analysis"
 
@@ -15,7 +17,8 @@ func NewTestpackage(cfg *config.TestpackageSettings) *goanalysis.Linter {
 	if cfg != nil {
 		settings = map[string]map[string]interface{}{
 			a.Name: {
-				testpackage.SkipRegexpFlagName: cfg.SkipRegexp,
+				testpackage.SkipRegexpFlagName:    cfg.SkipRegexp,
+				testpackage.AllowPackagesFlagName: strings.Join(cfg.AllowPackages, ","),
 			},
 		}
 	}