Loading keystore signing info into Gradle

gistfile1.txt

// Load release signing info from keystore.properties
def keystoreProps = new Properties()
keystoreProps.load(new FileInputStream(rootProject.file('keystore.properties')))
keystoreProps.each { prop ->
    if (!project.hasProperty(prop.key)) {
        project.ext.set(prop.key, prop.value)
    }
}

android {
    signingConfigs {
        debug {
            storeFile file('keystore/debug.jks')
        }
        release {
            storeFile file('keystore/release.jks')
            storePassword findProperty('release.storePassword')
            keyAlias '{FooBar}'
            keyPassword findProperty('release.keyPassword')
        }
    }
}