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package system
import (
"fmt"
"os"
"strings"
"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/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{
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
}
if cmd.Flag("format").Changed {
// Cannot use report.New() as it enforces {{range .}} for OriginUser templates
tmpl := template.New(cmd.Name()).Funcs(template.FuncMap(report.DefaultFuncs))
versionFormat = report.NormalizeFormat(versionFormat)
tmpl, err := tmpl.Parse(versionFormat)
if err != nil {
return err
}
if err := tmpl.Execute(os.Stdout, versions); err != nil {
// On Failure, assume user is using older version of podman version --format and check client
versionFormat = strings.ReplaceAll(versionFormat, ".Server.", ".")
tmpl, err := tmpl.Parse(versionFormat)
if err != nil {
return err
}
if err := tmpl.Execute(os.Stdout, versions.Client); err != nil {
return err
}
}
return nil
}
rpt := report.New(os.Stdout, cmd.Name())
defer rpt.Flush()
rpt, err = rpt.Parse(report.OriginPodman, versionTemplate)
if err != nil {
return err
}
return rpt.Execute(versions)
}
const versionTemplate = `{{with .Client -}}
Client:\tPodman Engine
Version:\t{{.Version}}
API Version:\t{{.APIVersion}}
Go Version:\t{{.GoVersion}}
{{if .GitCommit -}}
Git Commit:\t{{.GitCommit}}
{{- end}}
Built:\t{{.BuiltTime}}
OS/Arch:\t{{.OsArch}}
{{- end}}
{{- if .Server }}{{with .Server}}
Server:\tPodman Engine
Version:\t{{.Version}}
API Version:\t{{.APIVersion}}
Go Version:\t{{.GoVersion}}
{{if .GitCommit -}}
Git Commit:\t{{.GitCommit}}
{{- end}}
Built:\t{{.BuiltTime}}
OS/Arch:\t{{.OsArch}}
{{- end}}{{- end}}
`
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