Example #1
0
// RUN some command yo
//
// run a command and commit the image. Args are automatically prepended with
// 'sh -c' under linux or 'cmd /S /C' under Windows, in the event there is
// only one argument. The difference in processing:
//
// RUN echo hi          # sh -c echo hi       (Linux)
// RUN echo hi          # cmd /S /C echo hi   (Windows)
// RUN [ "echo", "hi" ] # echo hi
//
func run(b *Builder, args []string, attributes map[string]bool, original string) error {
	if b.image == "" && !b.noBaseImage {
		return fmt.Errorf("Please provide a source image with `from` prior to run")
	}

	if err := b.BuilderFlags.Parse(); err != nil {
		return err
	}

	args = handleJsonArgs(args, attributes)

	if !attributes["json"] {
		if runtime.GOOS != "windows" {
			args = append([]string{"/bin/sh", "-c"}, args...)
		} else {
			args = append([]string{"cmd", "/S /C"}, args...)
		}
	}

	runCmd := flag.NewFlagSet("run", flag.ContinueOnError)
	runCmd.SetOutput(ioutil.Discard)
	runCmd.Usage = nil

	config, _, _, err := runconfig.Parse(runCmd, append([]string{b.image}, args...))
	if err != nil {
		return err
	}

	cmd := b.Config.Cmd
	// set Cmd manually, this is special case only for Dockerfiles
	b.Config.Cmd = config.Cmd
	runconfig.Merge(b.Config, config)

	defer func(cmd *runconfig.Command) { b.Config.Cmd = cmd }(cmd)

	glog.V(1).Infof("[BUILDER] Command to be executed: %v", b.Config.Cmd)

	hit, err := b.probeCache()
	if err != nil {
		return err
	}
	if hit {
		return nil
	}

	c, err := b.create()
	if err != nil {
		return err
	}

	err = b.run(c)
	if err != nil {
		return err
	}
	if err := b.commit(c.ID, cmd, "run"); err != nil {
		return err
	}

	return nil
}
Example #2
0
func parseRun(args []string) (*Config, *HostConfig, *flag.FlagSet, error) {
	cmd := flag.NewFlagSet("run", flag.ContinueOnError)
	cmd.SetOutput(ioutil.Discard)
	cmd.Usage = nil
	return Parse(cmd, args)
}