podmanv2 version

this is only for the abi side and does not print out the remote information yet.  the remote information will need to be worked on and agreed upon later.

Signed-off-by: Brent Baude <bbaude@redhat.com>

2 files changed, 120 insertions, 0 deletions

diff --git a/cmd/podmanV2/main.go b/cmd/podmanV2/main.go
index 6781a7f06..fe3cd9f16 100644
--- a/cmd/podmanV2/main.go
+++ b/cmd/podmanV2/main.go
@@ -12,6 +12,7 @@ import (
 	_ "github.com/containers/libpod/cmd/podmanV2/networks"
 	_ "github.com/containers/libpod/cmd/podmanV2/pods"
 	"github.com/containers/libpod/cmd/podmanV2/registry"
+	_ "github.com/containers/libpod/cmd/podmanV2/system"
 	_ "github.com/containers/libpod/cmd/podmanV2/volumes"
 	"github.com/containers/libpod/libpod"
 	"github.com/containers/libpod/pkg/domain/entities"
diff --git a/cmd/podmanV2/system/version.go b/cmd/podmanV2/system/version.go
new file mode 100644
index 000000000..e8002056b
--- /dev/null
+++ b/cmd/podmanV2/system/version.go
@@ -0,0 +1,119 @@
+package system
+
+import (
+	"fmt"
+	"io"
+	"os"
+	"strings"
+	"text/tabwriter"
+	"time"
+
+	"github.com/containers/buildah/pkg/formats"
+	"github.com/containers/libpod/cmd/podmanV2/registry"
+	"github.com/containers/libpod/libpod/define"
+	"github.com/containers/libpod/pkg/domain/entities"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	versionCommand = &cobra.Command{
+		Use:               "version",
+		Args:              cobra.NoArgs,
+		Short:             "Display the Podman Version Information",
+		RunE:              version,
+		PersistentPreRunE: preRunE,
+	}
+	format string
+)
+
+type versionStruct struct {
+	Client define.Version
+	Server define.Version
+}
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Mode:    []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+		Command: versionCommand,
+	})
+	flags := versionCommand.Flags()
+	flags.StringVarP(&format, "format", "f", "", "Change the output format to JSON or a Go template")
+}
+
+func version(cmd *cobra.Command, args []string) error {
+	var (
+		v   versionStruct
+		err error
+	)
+	v.Client, err = define.GetVersion()
+	if err != nil {
+		return errors.Wrapf(err, "unable to determine version")
+	}
+	// TODO we need to discuss how to implement
+	// this more. current endpoints dont have a
+	// version endpoint.  maybe we use info?
+	//if remote {
+	//	v.Server, err = getRemoteVersion(c)
+	//	if err != nil {
+	//		return err
+	//	}
+	//} else {
+	v.Server = v.Client
+	//}
+
+	versionOutputFormat := format
+	if versionOutputFormat != "" {
+		if strings.Join(strings.Fields(versionOutputFormat), "") == "{{json.}}" {
+			versionOutputFormat = formats.JSONString
+		}
+		var out formats.Writer
+		switch versionOutputFormat {
+		case formats.JSONString:
+			out = formats.JSONStruct{Output: v}
+			return out.Out()
+		default:
+			out = formats.StdoutTemplate{Output: v, Template: versionOutputFormat}
+			err := out.Out()
+			if err != nil {
+				// On Failure, assume user is using older version of podman version --format and check client
+				out = formats.StdoutTemplate{Output: v.Client, Template: versionOutputFormat}
+				if err1 := out.Out(); err1 != nil {
+					return err
+				}
+			}
+		}
+		return nil
+	}
+	w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
+	defer w.Flush()
+
+	if registry.IsRemote() {
+		if _, err := fmt.Fprintf(w, "Client:\n"); err != nil {
+			return err
+		}
+		formatVersion(w, v.Client)
+		if _, err := fmt.Fprintf(w, "\nServer:\n"); err != nil {
+			return err
+		}
+		formatVersion(w, v.Server)
+	} else {
+		formatVersion(w, v.Client)
+	}
+	return nil
+}
+
+func formatVersion(writer io.Writer, version define.Version) {
+	fmt.Fprintf(writer, "Version:\t%s\n", version.Version)
+	fmt.Fprintf(writer, "RemoteAPI Version:\t%d\n", version.RemoteAPIVersion)
+	fmt.Fprintf(writer, "Go Version:\t%s\n", version.GoVersion)
+	if version.GitCommit != "" {
+		fmt.Fprintf(writer, "Git Commit:\t%s\n", version.GitCommit)
+	}
+	// Prints out the build time in readable format
+	if version.Built != 0 {
+		fmt.Fprintf(writer, "Built:\t%s\n", time.Unix(version.Built, 0).Format(time.ANSIC))
+	}
+
+	fmt.Fprintf(writer, "OS/Arch:\t%s\n", version.OsArch)
+}