Merge pull request #7024 from jan25/issue-6972

v3: Prettify Updated time in helm list

cmd/helm/list.go

@@ -47,7 +47,7 @@ Only items that match the filter will be returned.
 
     $ helm list --filter 'ara[a-z]+'
     NAME                UPDATED                                  CHART
-    maudlin-arachnid    Mon May  9 16:07:08 2016    alpine-0.1.0
+    maudlin-arachnid    2020-06-18 14:17:46.125134977 +0000 UTC  alpine-0.1.0
 
 If no results are found, 'helm list' will exit 0, but with no output (or in
 the case of no '-q' flag, only headers).
@@ -104,16 +104,17 @@ func newListCmd(cfg *action.Configuration, out io.Writer) *cobra.Command {
 					}
 					return nil
 				default:
-					return outfmt.Write(out, newReleaseListWriter(results))
+					return outfmt.Write(out, newReleaseListWriter(results, client.TimeFormat))
 				}
 			}
 
-			return outfmt.Write(out, newReleaseListWriter(results))
+			return outfmt.Write(out, newReleaseListWriter(results, client.TimeFormat))
 		},
 	}
 
 	f := cmd.Flags()
 	f.BoolVarP(&client.Short, "short", "q", false, "output short (quiet) listing format")
+	f.StringVar(&client.TimeFormat, "time-format", "", "format time. Example: --time-format 2009-11-17 20:34:10 +0000 UTC")
 	f.BoolVarP(&client.ByDate, "date", "d", false, "sort by release date")
 	f.BoolVarP(&client.SortReverse, "reverse", "r", false, "reverse the sort order")
 	f.BoolVarP(&client.All, "all", "a", false, "show all releases without any filter applied")
@@ -147,7 +148,7 @@ type releaseListWriter struct {
 	releases []releaseElement
 }
 
-func newReleaseListWriter(releases []*release.Release) *releaseListWriter {
+func newReleaseListWriter(releases []*release.Release, timeFormat string) *releaseListWriter {
 	// Initialize the array so no results returns an empty array instead of null
 	elements := make([]releaseElement, 0, len(releases))
 	for _, r := range releases {
@@ -159,11 +160,17 @@ func newReleaseListWriter(releases []*release.Release) *releaseListWriter {
 			Chart:      fmt.Sprintf("%s-%s", r.Chart.Metadata.Name, r.Chart.Metadata.Version),
 			AppVersion: r.Chart.Metadata.AppVersion,
 		}
+
 		t := "-"
 		if tspb := r.Info.LastDeployed; !tspb.IsZero() {
+			if timeFormat != "" {
+				t = tspb.Format(timeFormat)
+			} else {
 				t = tspb.String()
 			}
+		}
 		element.Updated = t
+
 		elements = append(elements, element)
 	}
 	return &releaseListWriter{elements}

pkg/action/list.go

@@ -122,6 +122,7 @@ type List struct {
 	// Filter is a filter that is applied to the results
 	Filter       string
 	Short        bool
+	TimeFormat   string
 	Uninstalled  bool
 	Superseded   bool
 	Uninstalling bool