internal/dis: Add 'watcher' component for infos

cmd/info.go

@@ -24,7 +24,7 @@ func (info) Description() wisski_distillery.Description {
 			NeedsDistillery: true,
 		},
 		Command:     "info",
-		Description: "Provide information about a single repository",
+		Description: "Provide information about a single instance",
 	}
 }
 

cmd/status.go

@@ -0,0 +1,48 @@
+package cmd
+
+import (
+	"encoding/json"
+
+	wisski_distillery "github.com/FAU-CDI/wisski-distillery"
+	"github.com/FAU-CDI/wisski-distillery/internal/cli"
+)
+
+// Info is then 'info' command
+var Status wisski_distillery.Command = cStatus{}
+
+type cStatus struct {
+	JSON bool `short:"j" long:"json" description:"Print status as JSON instead of as string"`
+}
+
+func (cStatus) Description() wisski_distillery.Description {
+	return wisski_distillery.Description{
+		Requirements: cli.Requirements{
+			NeedsDistillery: true,
+		},
+		Command:     "status",
+		Description: "Provide information about the distillery as a whole",
+	}
+}
+
+func (s cStatus) Run(context wisski_distillery.Context) error {
+	status, _, err := context.Environment.Info().Status(true)
+	if err != nil {
+		return err
+	}
+
+	if s.JSON {
+		json.NewEncoder(context.Stdout).Encode(status)
+		return nil
+	}
+
+	context.Printf("Total Instances:      %v\n", status.TotalCount)
+	context.Printf("      (running):      %v\n", status.RunningCount)
+	context.Printf("      (stopped):      %v\n", status.StoppedCount)
+
+	context.Printf("Backups: (count %d)\n", len(status.Backups))
+	for _, s := range status.Backups {
+		context.Printf("- %s (slug %q, taken %s, packed %v)\n", s.Path, s.Slug, s.Created.String(), s.Packed)
+	}
+
+	return nil
+}

cmd/wdcli/main.go

@@ -57,6 +57,9 @@ func init() {
 	// servers
 	wdcli.Register(cmd.Server)
 	wdcli.Register(cmd.SSH)
+
+	// status
+	wdcli.Register(cmd.Status)
 }
 
 // an error when no arguments are provided.