Add JSONWriter, Fix CVE sort order of report

report/json.go

@@ -20,18 +20,43 @@ package report
 import (
 	"encoding/json"
 	"fmt"
+	"io/ioutil"
+	"path/filepath"
 
 	"github.com/future-architect/vuls/models"
 )
 
-// JSONWriter writes report as JSON format
+// JSONWriter writes results to file.
 type JSONWriter struct{}
 
 func (w JSONWriter) Write(scanResults []models.ScanResult) (err error) {
-	var j []byte
-	if j, err = json.MarshalIndent(scanResults, "", "  "); err != nil {
-		return
+
+	path, err := ensureResultDir()
+
+	var jsonBytes []byte
+	if jsonBytes, err = json.MarshalIndent(scanResults, "", "  "); err != nil {
+		return fmt.Errorf("Failed to Marshal to JSON: %s", err)
+	}
+	all := filepath.Join(path, "all.json")
+	if err := ioutil.WriteFile(all, jsonBytes, 0644); err != nil {
+		return fmt.Errorf("Failed to write JSON. path: %s, err: %s", all, err)
+	}
+
+	for _, r := range scanResults {
+		jsonPath := ""
+		if r.Container.ContainerID == "" {
+			jsonPath = filepath.Join(path, fmt.Sprintf("%s.json", r.ServerName))
+		} else {
+			jsonPath = filepath.Join(path,
+				fmt.Sprintf("%s_%s.json", r.ServerName, r.Container.Name))
+
+		}
+		if jsonBytes, err = json.MarshalIndent(r, "", "  "); err != nil {
+			return fmt.Errorf("Failed to Marshal to JSON: %s", err)
+		}
+		if err := ioutil.WriteFile(jsonPath, jsonBytes, 0644); err != nil {
+			return fmt.Errorf("Failed to write JSON. path: %s, err: %s", all, err)
+		}
 	}
-	fmt.Println(string(j))
 	return nil
 }