mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
95 lines
2.7 KiB
Go
95 lines
2.7 KiB
Go
package client
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import (
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"encoding/json"
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"runtime"
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"text/template"
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"github.com/docker/docker/api"
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"github.com/docker/docker/api/types"
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"github.com/docker/docker/autogen/dockerversion"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/utils"
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)
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var VersionTemplate = `Client:
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Version: {{.Client.Version}}
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API version: {{.Client.ApiVersion}}
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Go version: {{.Client.GoVersion}}
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Git commit: {{.Client.GitCommit}}
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Built: {{.Client.BuildTime}}
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OS/Arch: {{.Client.Os}}/{{.Client.Arch}}{{if .Client.Experimental}}
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Experimental: {{.Client.Experimental}}{{end}}{{if .ServerOK}}
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Server:
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Version: {{.Server.Version}}
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API version: {{.Server.ApiVersion}}
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Go version: {{.Server.GoVersion}}
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Git commit: {{.Server.GitCommit}}
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Built: {{.Server.BuildTime}}
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OS/Arch: {{.Server.Os}}/{{.Server.Arch}}{{if .Server.Experimental}}
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Experimental: {{.Server.Experimental}}{{end}}{{end}}`
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type VersionData struct {
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Client types.Version
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ServerOK bool
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Server types.Version
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}
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// CmdVersion shows Docker version information.
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//
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// Available version information is shown for: client Docker version, client API version, client Go version, client Git commit, client OS/Arch, server Docker version, server API version, server Go version, server Git commit, and server OS/Arch.
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//
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// Usage: docker version
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func (cli *DockerCli) CmdVersion(args ...string) (err error) {
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cmd := cli.Subcmd("version", nil, "Show the Docker version information.", true)
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tmplStr := cmd.String([]string{"f", "#format", "-format"}, "", "Format the output using the given go template")
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cmd.Require(flag.Exact, 0)
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cmd.ParseFlags(args, true)
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if *tmplStr == "" {
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*tmplStr = VersionTemplate
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}
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var tmpl *template.Template
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if tmpl, err = template.New("").Funcs(funcMap).Parse(*tmplStr); err != nil {
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return StatusError{StatusCode: 64,
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Status: "Template parsing error: " + err.Error()}
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}
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vd := VersionData{
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Client: types.Version{
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Version: dockerversion.VERSION,
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ApiVersion: api.Version,
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GoVersion: runtime.Version(),
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GitCommit: dockerversion.GITCOMMIT,
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BuildTime: dockerversion.BUILDTIME,
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Os: runtime.GOOS,
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Arch: runtime.GOARCH,
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Experimental: utils.ExperimentalBuild(),
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},
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}
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defer func() {
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if err2 := tmpl.Execute(cli.out, vd); err2 != nil && err == nil {
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err = err2
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}
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cli.out.Write([]byte{'\n'})
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}()
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serverResp, err := cli.call("GET", "/version", nil, nil)
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if err != nil {
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return err
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}
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defer serverResp.body.Close()
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if err = json.NewDecoder(serverResp.body).Decode(&vd.Server); err != nil {
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return StatusError{StatusCode: 1,
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Status: "Error reading remote version: " + err.Error()}
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}
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vd.ServerOK = true
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return
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}
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