Cacher is the code snippet organizer for pro developers

http://blog.stablekernel.com/creating-keystores-and-signing-android-apps

def keystorePropertiesFile = rootProject.file("keystore.properties")  
def keystoreProperties = new Properties()  
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

android {  
    signingConfigs {  
        release {  
            keyAlias keystoreProperties['keyAlias']  
            keyPassword keystoreProperties['keyPassword']  
            storeFile file(keystoreProperties['storeFile'])  
            storePassword keystoreProperties['storePassword']  
        }
    }  
}

// keystore.properties would contain (in this example):
storeFile=release.keystore  
storePassword=myStorePassword  
keyAlias=example  
keyPassword=mykeyPassword