mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
68 lines
1.6 KiB
Go
68 lines
1.6 KiB
Go
package main
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import (
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"fmt"
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"os"
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"github.com/Sirupsen/logrus"
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"github.com/docker/docker/dockerversion"
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flag "github.com/docker/docker/pkg/mflag"
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"github.com/docker/docker/pkg/reexec"
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"github.com/docker/docker/pkg/term"
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"github.com/docker/docker/utils"
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)
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var (
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daemonCli = NewDaemonCli()
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flHelp = flag.Bool([]string{"h", "-help"}, false, "Print usage")
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flVersion = flag.Bool([]string{"v", "-version"}, false, "Print version information and quit")
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)
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func main() {
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if reexec.Init() {
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return
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}
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// Set terminal emulation based on platform as required.
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_, stdout, stderr := term.StdStreams()
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logrus.SetOutput(stderr)
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flag.Merge(flag.CommandLine, daemonCli.commonFlags.FlagSet)
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flag.Usage = func() {
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fmt.Fprint(stdout, "Usage: dockerd [ --help | -v | --version ]\n\n")
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fmt.Fprint(stdout, "A self-sufficient runtime for containers.\n\nOptions:\n")
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flag.CommandLine.SetOutput(stdout)
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flag.PrintDefaults()
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}
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flag.CommandLine.ShortUsage = func() {
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fmt.Fprint(stderr, "\nUsage:\tdockerd [OPTIONS]\n")
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}
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if err := flag.CommandLine.ParseFlags(os.Args[1:], false); err != nil {
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os.Exit(1)
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}
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if *flVersion {
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showVersion()
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return
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}
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if *flHelp {
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// if global flag --help is present, regardless of what other options and commands there are,
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// just print the usage.
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flag.Usage()
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return
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}
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daemonCli.start()
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}
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func showVersion() {
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if utils.ExperimentalBuild() {
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fmt.Printf("Docker version %s, build %s, experimental\n", dockerversion.Version, dockerversion.GitCommit)
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} else {
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fmt.Printf("Docker version %s, build %s\n", dockerversion.Version, dockerversion.GitCommit)
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}
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}
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