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package system
import (
"fmt"
"io"
"os"
"strings"
"text/tabwriter"
"github.com/containers/buildah/pkg/formats"
"github.com/containers/libpod/cmd/podman/registry"
"github.com/containers/libpod/cmd/podman/validate"
"github.com/containers/libpod/libpod/define"
"github.com/containers/libpod/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 versionFormat == "json", versionFormat == "{{ json .}}":
s, err := json.MarshalToString(versions)
if err != nil {
return err
}
_, err = io.WriteString(os.Stdout, s)
return err
case cmd.Flag("format").Changed:
if !strings.HasSuffix(versionFormat, "\n") {
versionFormat += "\n"
}
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%d\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)
}
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