add -dir parameter

Makefile

@@ -1,4 +1,4 @@
 #!/usr/bin/make -f
 
 all:
-	go build
+	go build -o bin/kubeconform

bin/.gitignore

@@ -0,0 +1 @@
+kubeconform

main.go

@@ -10,6 +10,7 @@ import (
 	"strings"
 
 	"github.com/yannh/kubeconform/pkg/cache"
+	"github.com/yannh/kubeconform/pkg/fsutils"
 	"github.com/yannh/kubeconform/pkg/registry"
 	"github.com/yannh/kubeconform/pkg/resource"
 	"github.com/yannh/kubeconform/pkg/validator"
@@ -72,9 +73,10 @@ func (i *arrayFiles) Set(value string) error {
 
 
 func realMain() int {
-	var files arrayFiles
+	var files, dirs arrayFiles
 	var skipKinds, k8sVersion string
 	flag.Var(&files, "file", "file to validate (can be specified multiple times)")
+	flag.Var(&dirs, "dir", "directory to validate (can be specified multiple times)")
 	flag.StringVar(&k8sVersion, "k8sversion", "1.18.0", "version of Kubernetes to test against")
 	flag.StringVar(&skipKinds, "skipKinds", "", "comma-separated list of kinds to ignore")
 	flag.Parse()
@@ -89,36 +91,54 @@ func realMain() int {
 		return false
 	}
 
-	for _, filename := range files {
-		f, err := os.Open(filename)
-		if err != nil {
-			log.Fatalf("failed opening %s\n", filename)
-			return 1
-		}
-		defer f.Close()
+	fileBatches := make(chan []string)
 
-		r := registry.NewKubernetesRegistry(false)
-		res := validateFile(f, []*registry.KubernetesRegistry{r}, k8sVersion, filter)
-		for _, resourceValidation := range res {
-			if resourceValidation.skipped {
-				log.Printf("skipping resource\n")
+	go func() {
+		for _, dir := range dirs {
+			if err := fsutils.FindYamlInDir(dir, fileBatches, 10); err != nil {
+				log.Printf("failed processing folder %s: %s", dir, err)
+			}
+		}
+
+		for _, filename := range files {
+			fileBatches <- []string{filename}
+		}
+
+		close(fileBatches)
+	}()
+
+	r := registry.NewKubernetesRegistry(false)
+
+	for fileBatch := range fileBatches {
+		for _, filename := range fileBatch {
+			f, err := os.Open(filename)
+			if err != nil {
+				log.Printf("failed opening %s\n", filename)
 				continue
 			}
 
-			if resourceValidation.err != nil {
-				if _, ok := resourceValidation.err.(validator.InvalidResourceError); ok {
-					log.Printf("invalid resource: %s\n", resourceValidation.err)
-				} else {
-					log.Printf("failed validating resource: %s\n", resourceValidation.err)
+			res := validateFile(f, []*registry.KubernetesRegistry{r}, k8sVersion, filter)
+			f.Close()
+			for _, resourceValidation := range res {
+				if resourceValidation.skipped {
+					log.Printf("skipping resource\n")
+					continue
 				}
-				continue
-			}
 
-			if resourceValidation.err == nil && !resourceValidation.skipped{
-				log.Printf("file %s is valid\n", filename)
+				if resourceValidation.err != nil {
+					if _, ok := resourceValidation.err.(validator.InvalidResourceError); ok {
+						log.Printf("invalid resource: %s\n", resourceValidation.err)
+					} else {
+						log.Printf("failed validating resource in file %s: %s\n", filename, resourceValidation.err)
+					}
+					continue
+				}
+
+				if resourceValidation.err == nil && !resourceValidation.skipped{
+					log.Printf("file %s is valid\n", filename)
+				}
 			}
 		}
-
 	}
 
 	return 0

pkg/fsutils/main.go

@@ -0,0 +1,32 @@
+package fsutils
+
+import (
+	"os"
+	"path/filepath"
+	"strings"
+)
+
+func FindYamlInDir(dir string, fileBatches chan<- []string, batchSize int) error {
+	files := []string{}
+
+	err := filepath.Walk(dir, func(path string, info os.FileInfo, err error) error {
+		if err != nil {
+			return err
+		}
+
+		if !info.IsDir() && (strings.HasSuffix(info.Name(), ".yaml") || strings.HasSuffix(info.Name(), ".yml")) {
+			files = append(files, path)
+			if len(files) > batchSize {
+				fileBatches <- files
+				files = nil
+			}
+		}
+		return nil
+	})
+
+	if len(files) > 0 {
+		fileBatches <- files
+	}
+
+	return err
+}

pkg/validator/main.go

@@ -18,12 +18,13 @@ func (f ValidFormat) IsFormat(input interface{}) bool {
 	return true
 }
 
-func init () {
-	gojsonschema.FormatCheckers.Add("int64", ValidFormat{})
-	gojsonschema.FormatCheckers.Add("byte", ValidFormat{})
-	gojsonschema.FormatCheckers.Add("int32", ValidFormat{})
-	gojsonschema.FormatCheckers.Add("int-or-string", ValidFormat{})
-}
+// From kubeval - let's see if absolutely necessary
+// func init () {
+// 	gojsonschema.FormatCheckers.Add("int64", ValidFormat{})
+// 	gojsonschema.FormatCheckers.Add("byte", ValidFormat{})
+// 	gojsonschema.FormatCheckers.Add("int32", ValidFormat{})
+// 	gojsonschema.FormatCheckers.Add("int-or-string", ValidFormat{})
+// }
 
 func Validate(rawResource []byte, rawSchema []byte) error {
 	schemaLoader := gojsonschema.NewBytesLoader(rawSchema)