Get Keystore properties from local environment or Bitrise

build.gradle

private static Properties loadProperties(Project rootProject) {
    def keystoreProperties = new Properties()

    // load your keystore.properties file into e keystoreProperties object.
    try {
        def keystorePropertiesFile = rootProject.file("keystore.properties")
        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
    } catch(FileNotFoundException exception){
        println(exception.message)
        println("-------")
        println("Trying to get the properties from environment variables")
        println("-------")

        keystoreProperties.put('securityKey', "$System.env.securityKey")
        keystoreProperties.put('securityTransformation', "$System.env.securityTransformation")
        keystoreProperties.put('securityAlgorithm', "$System.env.securityAlgorithm")
    }

    return keystoreProperties
}