Android : Prompt for signing when building for release

build.gradle

signingConfigs {
    release {
        storeFile file(System.console().readLine("\n\$ Enter keystore path: "))
        storePassword new String(System.console().readPassword("\n\$ Enter keystore password: "))
        keyAlias System.console().readLine("\n\$ Enter key alias: ")
        keyPassword new String(System.console().readPassword("\n\$ Enter key password: "))
    }
}