func ReadFile()

in commands/util.go [937:966]

25 lines of code
4 McCabe index (conditional complexity)


func ReadFile(filename string) (string, error) {
	exists, err := FileExists(filename)

	if err != nil {
		return "", err
	}

	if !exists {
		errMsg := wski18n.T("File '{{.name}}' is not a valid file or it does not exist",
			map[string]interface{}{
				"name": filename,
			})
		whiskErr := whisk.MakeWskErrorFromWskError(errors.New(errMsg), err, whisk.EXIT_CODE_ERR_USAGE,
			whisk.DISPLAY_MSG, whisk.DISPLAY_USAGE)

		return "", whiskErr
	}

	file, err := ioutil.ReadFile(filename)
	if err != nil {
		whisk.Debug(whisk.DbgError, "os.ioutil.ReadFile(%s) error: %s\n", filename, err)
		errMsg := wski18n.T("Unable to read the file '{{.name}}': {{.err}}",
			map[string]interface{}{"name": filename, "err": err})
		whiskErr := whisk.MakeWskErrorFromWskError(errors.New(errMsg), err, whisk.EXIT_CODE_ERR_GENERAL,
			whisk.DISPLAY_MSG, whisk.DISPLAY_USAGE)
		return "", whiskErr
	}

	return string(file), nil
}