mirror of
https://github.com/moby/moby.git
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8324d7918b
Continues 11858 by: - Making sure the exit code is always zero when we ask for help - Making sure the exit code isn't zero when we print help on error cases - Making sure both short and long usage go to the same stream (stdout vs stderr) - Making sure all docker commands support --help - Test that all cmds send --help to stdout, exit code 0, show full usage, no blank lines at end - Test that all cmds (that support it) show short usage on bad arg to stderr, no blank line at end - Test that all cmds complain about a bad option, no blank line at end - Test that docker (w/o subcmd) does the same stuff mentioned above properly Signed-off-by: Doug Davis <dug@us.ibm.com>
55 lines
1.8 KiB
Go
55 lines
1.8 KiB
Go
package client
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import (
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"encoding/json"
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"fmt"
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"runtime"
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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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)
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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) error {
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cmd := cli.Subcmd("version", "", "Show the Docker version information.", true)
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cmd.Require(flag.Exact, 0)
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cmd.ParseFlags(args, true)
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if dockerversion.VERSION != "" {
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fmt.Fprintf(cli.out, "Client version: %s\n", dockerversion.VERSION)
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}
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fmt.Fprintf(cli.out, "Client API version: %s\n", api.APIVERSION)
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fmt.Fprintf(cli.out, "Go version (client): %s\n", runtime.Version())
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if dockerversion.GITCOMMIT != "" {
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fmt.Fprintf(cli.out, "Git commit (client): %s\n", dockerversion.GITCOMMIT)
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}
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fmt.Fprintf(cli.out, "OS/Arch (client): %s/%s\n", runtime.GOOS, runtime.GOARCH)
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stream, _, 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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var v types.Version
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if err := json.NewDecoder(stream).Decode(&v); err != nil {
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fmt.Fprintf(cli.err, "Error reading remote version: %s\n", err)
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return err
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}
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fmt.Fprintf(cli.out, "Server version: %s\n", v.Version)
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if v.ApiVersion != "" {
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fmt.Fprintf(cli.out, "Server API version: %s\n", v.ApiVersion)
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}
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fmt.Fprintf(cli.out, "Go version (server): %s\n", v.GoVersion)
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fmt.Fprintf(cli.out, "Git commit (server): %s\n", v.GitCommit)
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fmt.Fprintf(cli.out, "OS/Arch (server): %s/%s\n", v.Os, v.Arch)
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return nil
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}
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