package system import ( "fmt" "io" "os" "strings" "text/tabwriter" "github.com/containers/buildah/pkg/formats" "github.com/containers/podman/v2/cmd/podman/parse" "github.com/containers/podman/v2/cmd/podman/registry" "github.com/containers/podman/v2/cmd/podman/validate" "github.com/containers/podman/v2/libpod/define" "github.com/containers/podman/v2/pkg/domain/entities" "github.com/spf13/cobra" ) var ( versionCommand = &cobra.Command{ Use: "version", Args: validate.NoArgs, Short: "Display the Podman Version Information", RunE: version, } versionFormat string ) func init() { registry.Commands = append(registry.Commands, registry.CliCommand{ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode}, Command: versionCommand, }) flags := versionCommand.Flags() flags.StringVarP(&versionFormat, "format", "f", "", "Change the output format to JSON or a Go template") } func version(cmd *cobra.Command, args []string) error { versions, err := registry.ContainerEngine().Version(registry.Context()) if err != nil { return err } switch { case parse.MatchesJSONFormat(versionFormat): s, err := json.MarshalToString(versions) if err != nil { return err } _, err = io.WriteString(os.Stdout, s+"\n") return err case cmd.Flag("format").Changed: out := formats.StdoutTemplate{Output: versions, Template: versionFormat} err := out.Out() if err != nil { // On Failure, assume user is using older version of podman version --format and check client versionFormat = strings.Replace(versionFormat, ".Server.", ".", 1) out = formats.StdoutTemplate{Output: versions.Client, Template: versionFormat} if err1 := out.Out(); err1 != nil { return err } } return nil } w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0) defer w.Flush() if versions.Server != nil { if _, err := fmt.Fprintf(w, "Client:\n"); err != nil { return err } formatVersion(w, versions.Client) if _, err := fmt.Fprintf(w, "\nServer:\n"); err != nil { return err } formatVersion(w, versions.Server) } else { formatVersion(w, versions.Client) } return nil } func formatVersion(writer io.Writer, version *define.Version) { fmt.Fprintf(writer, "Version:\t%s\n", version.Version) fmt.Fprintf(writer, "API Version:\t%s\n", version.APIVersion) fmt.Fprintf(writer, "Go Version:\t%s\n", version.GoVersion) if version.GitCommit != "" { fmt.Fprintf(writer, "Git Commit:\t%s\n", version.GitCommit) } fmt.Fprintf(writer, "Built:\t%s\n", version.BuiltTime) fmt.Fprintf(writer, "OS/Arch:\t%s\n", version.OsArch) }