Gradle.md

Gradle

Best Practices

Storing sensitive data on a local file and not pushing in a git repo

Passwords. In your app's build.gradle you will need to define the signingConfigs for the release build. Here is what you should avoid:

Don't do this. This would appear in the version control system.

signingConfigs {
    release {
        storeFile file("myapp.keystore")
        storePassword "password123"
        keyAlias "thekey"
        keyPassword "password789"
    }
}

Instead, make a keystore.properties file which should not be added to the version control system:

storePassword=test123
keyPassword=test1234
keyAlias=sch
storeFile=/Users/ayush/sch.keystore

To import the properties for build configuration follow the steps listed below:

i. In your module's build.gradle file, add code to load your keystore.properties file before the android {} block.

...

// Create a variable called keystorePropertiesFile, and initialize it to your
// keystore.properties file, in the rootProject folder.
def keystorePropertiesFile = rootProject.file("keystore.properties")

// Initialize a new Properties() object called keystoreProperties.
def keystoreProperties = new Properties()

// Load your keystore.properties file into the keystoreProperties object.
keystoreProperties.load(new FileInputStream(keystorePropertiesFile))

android {
    ...
}

Note: You could choose to store your keystore.properties file in another location (for example, in the module folder rather than the root folder for the project, or on your build server if you are using a continuous integration tool). In that case, you should modify the code above to correctly initialize keystorePropertiesFile using your actual keystore.properties file's location.

ii. You can refer to properties stored in keystoreProperties using the syntax keystoreProperties['propertyName']. Modify the signingConfigs block of your module's build.gradle file to reference the signing information stored in keystoreProperties using this syntax.

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