func runDecryptCmd()

in cli/image_cmds.go [429:460]

• 26 lines of code
• 7 McCabe index (conditional complexity)

func runDecryptCmd(cmd *cobra.Command, args []string) {
	if len(args) < 2 {
		ImgmodUsage(cmd, nil)
	}

	imgFilename := args[0]
	keyFilename := args[1]

	outFilename, err := CalcOutFilename(imgFilename)
	if err != nil {
		ImgmodUsage(cmd, err)
	}

	img, err := readImage(imgFilename)
	if err != nil {
		ImgmodUsage(cmd, err)
	}

	keyBytes, err := ioutil.ReadFile(keyFilename)
	if err != nil {
		ImgmodUsage(cmd, errors.Wrapf(err, "error reading key file"))
	}

	img, err = iimg.DecryptImage(img, keyBytes)
	if err != nil {
		ImgmodUsage(nil, err)
	}

	if err := writeImage(img, outFilename); err != nil {
		ImgmodUsage(nil, err)
	}
}