Method Run

build.go:136–347

(args []string)

}

func (cmd *buildCommand) Run(args []string) (err error) {
	reexec()

	// Get the specified context.
	cmd.contextDir = args[0]

	// Parse what is set to come from stdin.
	if cmd.dockerfilePath == "-" {
		cmd.dockerfilePath, err = dockerfileFromStdin()
		if err != nil {
			return fmt.Errorf("reading dockerfile from stdin failed: %v", err)
		}
		// On exit cleanup the temporary file we used hold the dockerfile from stdin.
		defer os.RemoveAll(cmd.dockerfilePath)
	}

	if cmd.contextDir == "" {
		return errors.New("please specify build context (e.g. \".\" for the current directory)")
	}

	if cmd.contextDir == "-" {
		cmd.contextDir, err = contextFromStdin(cmd.dockerfilePath)
		if err != nil {
			return fmt.Errorf("reading context from stdin failed: %v", err)
		}
		// On exit cleanup the temporary directory we used hold the files from stdin.
		defer os.RemoveAll(cmd.contextDir)
	}

	// get the tag or output image name
	initialTag := "image"
	if cmd.bkoutput.Type == "" {
		if tags := cmd.tags.GetAll(); len(tags) > 0 {
			initialTag = tags[0]
		}
	} else {
		if name, ok := cmd.bkoutput.Attrs["name"]; ok {
			initialTag = name
		}
	}

	// Set the dockerfile path as the default if one was not given.
	if cmd.dockerfilePath == "" {
		cmd.dockerfilePath, err = securejoin.SecureJoin(cmd.contextDir, defaultDockerfileName)
		if err != nil {
			return err
		}
	}

	if cmd.platforms.Len() < 1 {
		err = cmd.platforms.Set(platforms.DefaultString())
		if err != nil {
			return err
		}
	}
	platforms := strings.Join(cmd.platforms.GetAll(), ",")

	// Create the client.