Initial QSfera import

Server/qsfera/pkg/command/version.go

@@ -0,0 +1,80 @@
+package command
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/spf13/cobra"
+
+	"github.com/qsfera/server/qsfera/pkg/register"
+	"github.com/qsfera/server/pkg/config"
+	"github.com/qsfera/server/pkg/registry"
+	"github.com/qsfera/server/pkg/version"
+
+	"github.com/olekukonko/tablewriter"
+	"github.com/olekukonko/tablewriter/tw"
+	mreg "go-micro.dev/v4/registry"
+)
+
+const (
+	_skipServiceListingFlagName = "skip-services"
+)
+
+// VersionCommand is the entrypoint for the version command.
+func VersionCommand(cfg *config.Config) *cobra.Command {
+	versionCmd := &cobra.Command{
+		Use:     "version",
+		Short:   "print the version of this binary and all running service instances",
+		GroupID: CommandGroupServer,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			fmt.Println("Version: " + version.GetString())
+			fmt.Printf("Edition: %s\n", version.Edition)
+			fmt.Printf("Compiled: %s\n", version.Compiled())
+
+			skipServiceListing, _ := cmd.Flags().GetBool(_skipServiceListingFlagName)
+			if skipServiceListing {
+				return nil
+			}
+
+			fmt.Print("\n")
+
+			reg := registry.GetRegistry()
+			serviceList, err := reg.ListServices()
+			if err != nil {
+				fmt.Printf("could not list services: %v\n", err)
+				return err
+			}
+
+			var services []*mreg.Service
+			for _, s := range serviceList {
+				s, err := reg.GetService(s.Name)
+				if err != nil {
+					fmt.Printf("could not get service: %v\n", err)
+					return err
+				}
+				services = append(services, s...)
+			}
+
+			if len(services) == 0 {
+				fmt.Println("No running services found.")
+				return nil
+			}
+
+			table := tablewriter.NewTable(os.Stdout, tablewriter.WithHeaderAutoFormat(tw.Off))
+			table.Header([]string{"Version", "Address", "Id"})
+			for _, s := range services {
+				for _, n := range s.Nodes {
+					table.Append([]string{s.Version, n.Address, n.Id})
+				}
+			}
+			table.Render()
+			return nil
+		},
+	}
+	versionCmd.Flags().Bool(_skipServiceListingFlagName, false, "skip service listing")
+	return versionCmd
+}
+
+func init() {
+	register.AddCommand(VersionCommand)
+}