add configurable output

pkg/output/json.go

@@ -0,0 +1,45 @@
+package output
+
+import (
+	"encoding/json"
+	"fmt"
+)
+
+type result struct {
+	Filename string  `json:"filename"`
+	Status string `json:"status"`
+	Msg string `json:"msg"`
+}
+
+type JSONOutput struct {
+	results []result
+}
+
+func NewJSONOutput() Output{
+	return &JSONOutput{
+		results: []result{},
+	}
+}
+
+func (o *JSONOutput) Write(filename string,err error, skipped bool) {
+	status := "VALID"
+	msg := ""
+	if err != nil {
+		status = "ERROR"
+		msg = err.Error()
+	}
+	if skipped {
+		status = "SKIPPED"
+	}
+
+	o.results = append(o.results, result{Filename: filename, Status: status, Msg: msg})
+}
+
+func (o *JSONOutput) Flush() {
+	res, err := json.MarshalIndent(o.results,"", "  ")
+	if err != nil {
+		fmt.Printf("error print results: %s", err)
+		return
+	}
+	fmt.Printf("%s\n", res)
+}

pkg/output/main.go

@@ -0,0 +1,7 @@
+package output
+
+type Output interface {
+	Write (filename string, err error, skipped bool)
+	Flush ()
+}
+

pkg/output/text.go

@@ -0,0 +1,37 @@
+package output
+
+import (
+	"github.com/yannh/kubeconform/pkg/validator"
+	"log"
+)
+
+type TextOutput struct {
+}
+
+func NewTextOutput() Output {
+	return &TextOutput{}
+}
+
+func (o *TextOutput) Write(filename string,err error, skipped bool) {
+	if skipped {
+		log.Printf("skipping resource\n")
+		return
+	}
+
+	if err != nil {
+		if _, ok := err.(validator.InvalidResourceError); ok {
+			log.Printf("invalid resource: %s\n", err)
+		} else {
+			log.Printf("failed validating resource in file %s: %s\n", filename, err)
+		}
+		return
+	}
+
+	if !skipped{
+		log.Printf("file %s is valid\n", filename)
+	}
+}
+
+func (o *TextOutput) Flush() {
+}
+