feat(helm): Add --full-output to helm list and helm history

The default maximum length of the output table is 60 chars.
When the length is greater than 60, the content will be omitted.
This patch adds -f and --full-output to helm list and helm history
which can display full information of releases on the screen.

Closes #2828

cmd/helm/history.go

@@ -46,10 +46,11 @@ The historical release set is printed as a formatted table, e.g:
 `
 
 type historyCmd struct {
-	max   int32
-	rls   string
-	out   io.Writer
-	helmc helm.Interface
+	max    int32
+	rls    string
+	out    io.Writer
+	helmc  helm.Interface
+	output string
 }
 
 func newHistoryCmd(c helm.Interface, w io.Writer) *cobra.Command {
@@ -73,7 +74,9 @@ func newHistoryCmd(c helm.Interface, w io.Writer) *cobra.Command {
 		},
 	}
 
-	cmd.Flags().Int32Var(&his.max, "max", 256, "maximum number of revision to include in history")
+	f := cmd.Flags()
+	f.Int32Var(&his.max, "max", 256, "maximum number of revision to include in history")
+	f.StringVar(&his.output, "output", "short", "specifies the output format")
 
 	return cmd
 }
@@ -87,13 +90,19 @@ func (cmd *historyCmd) run() error {
 		return nil
 	}
 
-	fmt.Fprintln(cmd.out, formatHistory(r.Releases))
+	fmt.Fprintln(cmd.out, formatHistory(r.Releases, cmd.output))
 	return nil
 }
 
-func formatHistory(rls []*release.Release) string {
+func formatHistory(rls []*release.Release, output string) string {
 	tbl := uitable.New()
-	tbl.MaxColWidth = 60
+	switch output {
+	case "wide":
+		break
+	default:
+		tbl.MaxColWidth = 60
+	}
+
 	tbl.AddRow("REVISION", "UPDATED", "STATUS", "CHART", "DESCRIPTION")
 	for i := len(rls) - 1; i >= 0; i-- {
 		r := rls[i]

cmd/helm/list.go

@@ -74,6 +74,7 @@ type listCmd struct {
 	superseded bool
 	pending    bool
 	client     helm.Interface
+	output     string
 }
 
 func newListCmd(client helm.Interface, out io.Writer) *cobra.Command {
@@ -112,6 +113,7 @@ func newListCmd(client helm.Interface, out io.Writer) *cobra.Command {
 	f.BoolVar(&list.failed, "failed", false, "show failed releases")
 	f.BoolVar(&list.pending, "pending", false, "show pending releases")
 	f.StringVar(&list.namespace, "namespace", "", "show releases within a specific namespace")
+	f.StringVar(&list.output, "output", "short", "specifies the output format")
 
 	// TODO: Do we want this as a feature of 'helm list'?
 	//f.BoolVar(&list.superseded, "history", true, "show historical releases")
@@ -162,7 +164,7 @@ func (l *listCmd) run() error {
 		}
 		return nil
 	}
-	fmt.Fprintln(l.out, formatList(rels))
+	fmt.Fprintln(l.out, formatList(rels, l.output))
 	return nil
 }
 
@@ -207,9 +209,15 @@ func (l *listCmd) statusCodes() []release.Status_Code {
 	return status
 }
 
-func formatList(rels []*release.Release) string {
+func formatList(rels []*release.Release, output string) string {
 	table := uitable.New()
-	table.MaxColWidth = 60
+	switch output {
+	case "wide":
+		break
+	default:
+		table.MaxColWidth = 60
+	}
+
 	table.AddRow("NAME", "REVISION", "UPDATED", "STATUS", "CHART", "NAMESPACE")
 	for _, r := range rels {
 		c := fmt.Sprintf("%s-%s", r.Chart.Metadata.Name, r.Chart.Metadata.Version)

docs/helm/helm_history.md

@@ -29,6 +29,7 @@ helm history [flags] RELEASE_NAME
 
 ```
       --max int32            maximum number of revision to include in history (default 256)
+      --output string        specifies the output format (default "short")
       --tls                  enable TLS for request
       --tls-ca-cert string   path to TLS CA certificate file (default "$HELM_HOME/ca.pem")
       --tls-cert string      path to TLS certificate file (default "$HELM_HOME/cert.pem")
@@ -50,4 +51,4 @@ helm history [flags] RELEASE_NAME
 ### SEE ALSO
 * [helm](helm.md)	 - The Helm package manager for Kubernetes.
 
-###### Auto generated by spf13/cobra on 7-Nov-2017
+###### Auto generated by spf13/cobra on 10-Jan-2018

docs/helm/helm_list.md

@@ -48,6 +48,7 @@ helm list [flags] [FILTER]
   -m, --max int              maximum number of releases to fetch (default 256)
       --namespace string     show releases within a specific namespace
   -o, --offset string        next release name in the list, used to offset from start value
+      --output string        specifies the output format (default "short")
       --pending              show pending releases
   -r, --reverse              reverse the sort order
   -q, --short                output short (quiet) listing format
@@ -72,4 +73,4 @@ helm list [flags] [FILTER]
 ### SEE ALSO
 * [helm](helm.md)	 - The Helm package manager for Kubernetes.
 
-###### Auto generated by spf13/cobra on 7-Nov-2017
+###### Auto generated by spf13/cobra on 10-Jan-2018