github.com/guilhermebr/docker@v1.4.2-0.20150428121140-67da055cebca/api/client/version.go (about)

     1  package client
     2  
     3  import (
     4  	"fmt"
     5  	"runtime"
     6  
     7  	"github.com/Sirupsen/logrus"
     8  	"github.com/docker/docker/api"
     9  	"github.com/docker/docker/autogen/dockerversion"
    10  	"github.com/docker/docker/engine"
    11  	flag "github.com/docker/docker/pkg/mflag"
    12  )
    13  
    14  // CmdVersion shows Docker version information.
    15  //
    16  // 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.
    17  //
    18  // Usage: docker version
    19  func (cli *DockerCli) CmdVersion(args ...string) error {
    20  	cmd := cli.Subcmd("version", "", "Show the Docker version information.", true)
    21  	cmd.Require(flag.Exact, 0)
    22  
    23  	cmd.ParseFlags(args, false)
    24  
    25  	if dockerversion.VERSION != "" {
    26  		fmt.Fprintf(cli.out, "Client version: %s\n", dockerversion.VERSION)
    27  	}
    28  	fmt.Fprintf(cli.out, "Client API version: %s\n", api.APIVERSION)
    29  	fmt.Fprintf(cli.out, "Go version (client): %s\n", runtime.Version())
    30  	if dockerversion.GITCOMMIT != "" {
    31  		fmt.Fprintf(cli.out, "Git commit (client): %s\n", dockerversion.GITCOMMIT)
    32  	}
    33  	fmt.Fprintf(cli.out, "OS/Arch (client): %s/%s\n", runtime.GOOS, runtime.GOARCH)
    34  
    35  	body, _, err := readBody(cli.call("GET", "/version", nil, nil))
    36  	if err != nil {
    37  		return err
    38  	}
    39  
    40  	out := engine.NewOutput()
    41  	remoteVersion, err := out.AddEnv()
    42  	if err != nil {
    43  		logrus.Errorf("Error reading remote version: %s", err)
    44  		return err
    45  	}
    46  	if _, err := out.Write(body); err != nil {
    47  		logrus.Errorf("Error reading remote version: %s", err)
    48  		return err
    49  	}
    50  	out.Close()
    51  	fmt.Fprintf(cli.out, "Server version: %s\n", remoteVersion.Get("Version"))
    52  	if apiVersion := remoteVersion.Get("ApiVersion"); apiVersion != "" {
    53  		fmt.Fprintf(cli.out, "Server API version: %s\n", apiVersion)
    54  	}
    55  	fmt.Fprintf(cli.out, "Go version (server): %s\n", remoteVersion.Get("GoVersion"))
    56  	fmt.Fprintf(cli.out, "Git commit (server): %s\n", remoteVersion.Get("GitCommit"))
    57  	fmt.Fprintf(cli.out, "OS/Arch (server): %s/%s\n", remoteVersion.Get("Os"), remoteVersion.Get("Arch"))
    58  	return nil
    59  }