func()

in credhelper/helper.go [123:146]

• 21 lines of code
• 6 McCabe index (conditional complexity)

func (ch *gcrCredHelper) getGCRAccessToken() (string, error) {
	var token string
	var err error
	tokenSources := ch.userCfg.TokenSources()
	for _, source := range tokenSources {
		switch source {
		case "env":
			token, err = ch.envToken()
		case "gcloud", "gcloud_sdk": // gcloud_sdk supported for legacy reasons
			token, err = ch.gcloudSDKToken(ch.gcloudCmd)
		case "store":
			token, err = ch.credStoreToken(ch.store)
		default:
			return "", helperErr("unknown token source: "+source, nil)
		}

		// if we successfully retrieved a token, break.
		if err == nil {
			break
		}
	}

	return token, err
}