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package system
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"text/template"
"github.com/containers/common/pkg/completion"
"github.com/containers/common/pkg/report"
"github.com/containers/podman/v3/cmd/podman/common"
"github.com/containers/podman/v3/cmd/podman/registry"
"github.com/containers/podman/v3/cmd/podman/validate"
"github.com/containers/podman/v3/libpod/define"
"github.com/containers/podman/v3/pkg/domain/entities"
"github.com/spf13/cobra"
)
var (
versionCommand = &cobra.Command{
Use: "version [options]",
Args: validate.NoArgs,
Short: "Display the Podman Version Information",
RunE: version,
ValidArgsFunction: completion.AutocompleteNone,
}
versionFormat string
)
func init() {
registry.Commands = append(registry.Commands, registry.CliCommand{
Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
Command: versionCommand,
})
flags := versionCommand.Flags()
formatFlagName := "format"
flags.StringVarP(&versionFormat, formatFlagName, "f", "", "Change the output format to JSON or a Go template")
_ = versionCommand.RegisterFlagCompletionFunc(formatFlagName, common.AutocompleteFormat(entities.SystemVersionReport{}))
}
func version(cmd *cobra.Command, args []string) error {
versions, err := registry.ContainerEngine().Version(registry.Context())
if err != nil {
return err
}
if report.IsJSON(versionFormat) {
s, err := json.MarshalToString(versions)
if err != nil {
return err
}
fmt.Println(s)
return nil
}
w := tabwriter.NewWriter(os.Stdout, 0, 0, 2, ' ', 0)
defer w.Flush()
if cmd.Flag("format").Changed {
row := report.NormalizeFormat(versionFormat)
tmpl, err := template.New("version 2.0.0").Parse(row)
if err != nil {
return err
}
if err := tmpl.Execute(w, versions); err != nil {
// On Failure, assume user is using older version of podman version --format and check client
row = strings.Replace(row, ".Server.", ".", 1)
tmpl, err := template.New("version 1.0.0").Parse(row)
if err != nil {
return err
}
if err := tmpl.Execute(w, versions.Client); err != nil {
return err
}
}
return nil
}
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(w io.Writer, version *define.Version) {
fmt.Fprintf(w, "Version:\t%s\n", version.Version)
fmt.Fprintf(w, "API Version:\t%s\n", version.APIVersion)
fmt.Fprintf(w, "Go Version:\t%s\n", version.GoVersion)
if version.GitCommit != "" {
fmt.Fprintf(w, "Git Commit:\t%s\n", version.GitCommit)
}
fmt.Fprintf(w, "Built:\t%s\n", version.BuiltTime)
fmt.Fprintf(w, "OS/Arch:\t%s\n", version.OsArch)
}
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