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package main
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"time"
"github.com/containers/buildah/pkg/formats"
"github.com/containers/libpod/cmd/podman/cliconfig"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/pkg/adapter"
"github.com/pkg/errors"
"github.com/spf13/cobra"
)
var (
versionCommand cliconfig.VersionValues
_versionCommand = &cobra.Command{
Use: "version",
Args: noSubArgs,
Short: "Display the Podman Version Information",
RunE: func(cmd *cobra.Command, args []string) error {
versionCommand.InputArgs = args
versionCommand.GlobalFlags = MainGlobalOpts
versionCommand.Remote = remoteclient
return versionCmd(&versionCommand)
},
}
)
func init() {
versionCommand.Command = _versionCommand
versionCommand.SetUsageTemplate(UsageTemplate())
flags := versionCommand.Flags()
flags.StringVarP(&versionCommand.Format, "format", "f", "", "Change the output format to JSON or a Go template")
}
func getRemoteVersion(c *cliconfig.VersionValues) (version define.Version, err error) {
runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand)
if err != nil {
return version, errors.Wrapf(err, "could not get runtime")
}
defer runtime.DeferredShutdown(false)
return runtime.GetVersion()
}
type versionStruct struct {
Client define.Version
Server define.Version
}
// versionCmd gets and prints version info for version command
func versionCmd(c *cliconfig.VersionValues) error {
var (
v versionStruct
err error
)
v.Client, err = define.GetVersion()
if err != nil {
return errors.Wrapf(err, "unable to determine version")
}
if remote {
v.Server, err = getRemoteVersion(c)
if err != nil {
return err
}
} else {
v.Server = v.Client
}
versionOutputFormat := c.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 remote {
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)
}
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