fix: cli: prettify schedule when printing output (#1440)

* Adds methods to schedule.Schedule to show the raw cron string and timezone
* Uses these methods to clean up output of auto(start|stop) show or ls
* Defaults CRON_TZ=UTC if not provided

cli/autostart.go

@@ -63,7 +63,15 @@ func autostartShow() *cobra.Command {
 				return nil
 			}
 
-			_, _ = fmt.Fprintf(cmd.OutOrStdout(), "schedule: %s\nnext: %s\n", workspace.AutostartSchedule, validSchedule.Next(time.Now()))
+			next := validSchedule.Next(time.Now())
+			loc, _ := time.LoadLocation(validSchedule.Timezone())
+
+			_, _ = fmt.Fprintf(cmd.OutOrStdout(),
+				"schedule: %s\ntimezone: %s\nnext:     %s\n",
+				validSchedule.Cron(),
+				validSchedule.Timezone(),
+				next.In(loc),
+			)
 
 			return nil
 		},

cli/autostart_test.go

@@ -45,7 +45,8 @@ func TestAutostart(t *testing.T) {
 
 		err = cmd.Execute()
 		require.NoError(t, err, "unexpected error")
-		require.Contains(t, stdoutBuf.String(), "schedule: "+sched)
+		// CRON_TZ gets stripped
+		require.Contains(t, stdoutBuf.String(), "schedule: 30 17 * * 1-5")
 	})
 
 	t.Run("EnableDisableOK", func(t *testing.T) {

cli/autostop.go

@@ -63,7 +63,15 @@ func autostopShow() *cobra.Command {
 				return nil
 			}
 
-			_, _ = fmt.Fprintf(cmd.OutOrStdout(), "schedule: %s\nnext: %s\n", workspace.AutostopSchedule, validSchedule.Next(time.Now()))
+			next := validSchedule.Next(time.Now())
+			loc, _ := time.LoadLocation(validSchedule.Timezone())
+
+			_, _ = fmt.Fprintf(cmd.OutOrStdout(),
+				"schedule: %s\ntimezone: %s\nnext:     %s\n",
+				validSchedule.Cron(),
+				validSchedule.Timezone(),
+				next.In(loc),
+			)
 
 			return nil
 		},

cli/autostop_test.go

@@ -45,7 +45,8 @@ func TestAutostop(t *testing.T) {
 
 		err = cmd.Execute()
 		require.NoError(t, err, "unexpected error")
-		require.Contains(t, stdoutBuf.String(), "schedule: "+sched)
+		// CRON_TZ gets stripped
+		require.Contains(t, stdoutBuf.String(), "schedule: 30 17 * * 1-5")
 	})
 
 	t.Run("EnableDisableOK", func(t *testing.T) {

cli/list.go

@@ -10,6 +10,7 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/coder/coder/cli/cliui"
+	"github.com/coder/coder/coderd/autobuild/schedule"
 	"github.com/coder/coder/coderd/database"
 	"github.com/coder/coder/codersdk"
 )
@@ -108,14 +109,18 @@ func list() *cobra.Command {
 					durationDisplay = durationDisplay[:len(durationDisplay)-2]
 				}
 
-				autostartDisplay := "not enabled"
+				autostartDisplay := "-"
 				if workspace.AutostartSchedule != "" {
-					autostartDisplay = workspace.AutostartSchedule
+					if sched, err := schedule.Weekly(workspace.AutostartSchedule); err == nil {
+						autostartDisplay = sched.Cron()
+					}
 				}
 
-				autostopDisplay := "not enabled"
+				autostopDisplay := "-"
 				if workspace.AutostopSchedule != "" {
-					autostopDisplay = workspace.AutostopSchedule
+					if sched, err := schedule.Weekly(workspace.AutostopSchedule); err == nil {
+						autostopDisplay = sched.Cron()
+					}
 				}
 
 				user := usersByID[workspace.OwnerID]