add numbers to support bundle name as needed

Author: divolgin

cmd/troubleshoot/cli/receive.go

@@ -10,6 +10,7 @@ import (
 	"path/filepath"
 
 	"github.com/mholt/archiver"
+	"github.com/pkg/errors"
 	"github.com/replicatedhq/troubleshoot/pkg/logger"
 	kuberneteserrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -131,7 +132,12 @@ func receiveSupportBundle(collectorJobNamespace string, collectorJobName string)
 				paths = append(paths, filepath.Join(bundlePath, id))
 			}
 
-			if err := tarGz.Archive(paths, "support-bundle.tar.gz"); err != nil {
+			filename, err := findFileName("support-bundle", "tar.gz")
+			if err != nil {
+				return errors.Wrap(err, "find file name")
+			}
+
+			if err := tarGz.Archive(paths, filename); err != nil {
 				return err
 			}
 			return nil

cmd/troubleshoot/cli/run_nocrd.go

@@ -193,11 +193,16 @@ func runCollectors(v *viper.Viper, collector troubleshootv1beta1.Collector, prog
 		paths = append(paths, collectorDir)
 	}
 
-	if err := tarGz.Archive(paths, "support-bundle.tar.gz"); err != nil {
+	filename, err := findFileName("support-bundle", "tar.gz")
+	if err != nil {
+		return "", errors.Wrap(err, "find file name")
+	}
+
+	if err := tarGz.Archive(paths, filename); err != nil {
 		return "", errors.Wrap(err, "create archive")
 	}
 
-	return "support-bundle.tar.gz", nil
+	return filename, nil
 }
 
 func parseAndSaveCollectorOutput(output string, bundlePath string) (string, error) {

cmd/troubleshoot/cli/util.go

@@ -1,9 +1,11 @@
 package cli
 
 import (
+	"fmt"
 	"net/url"
 	"os"
 
+	"github.com/pkg/errors"
 	troubleshootclientv1beta1 "github.com/replicatedhq/troubleshoot/pkg/client/troubleshootclientset/typed/troubleshoot/v1beta1"
 	"github.com/spf13/viper"
 	"k8s.io/client-go/tools/clientcmd"
@@ -39,3 +41,19 @@ func createTroubleshootK8sClient() (*troubleshootclientv1beta1.TroubleshootV1bet
 
 	return troubleshootClient, nil
 }
+
+func findFileName(basename, extension string) (string, error) {
+	n := 1
+	name := basename
+	for {
+		filename := name + "." + extension
+		if _, err := os.Stat(filename); os.IsNotExist(err) {
+			return filename, nil
+		} else if err != nil {
+			return "", errors.Wrap(err, "check file exists")
+		}
+
+		name = fmt.Sprintf("%s (%d)", basename, n)
+		n = n + 1
+	}
+}