How to store credentials for multiple Maven repos in a properties file.

BuildConfig.groovy

final properties = new Properties()
properties.load(new FileInputStream(System.getProperty("user.home") + "/.grails/maven.properties"))
final mavenUsername = properties.getProperty("user")
final mavenPassword = properties.getProperty("password")

mavenRepo ("http://repo.mycompany.com:8081/artifactory/libs-release-local") {
    auth([
        username: mavenUsername,
        password: mavenPassword
    ])
}
mavenRepo ("http://repo.mycompany.com:8081/artifactory/remote-repos") {
    auth([
        username: mavenUsername,
        password: mavenPassword
    ])
}