Sign APK without putting keystore info in build.gradle

Question

I am trying to setup signing process so that keystore password and key password are not stored in the project\'s build.gradle file.

Cur

Answer 1

For the ones looking to put their credentials in an external JSON file and read that from the gradle this is what I did:

my_project/credentials.json:

{
    "android": {
        "storeFile": "/path/to/acuity.jks",
        "storePassword": "your_store_password",
        "keyAlias": "your_android_alias",
        "keyPassword": "your_key_password"
    }
}

my_project/android/app/build.gradle

// ...
signingConfigs {
        release {

            def credsFilePath = file("../../credentials.json").toString()
            def credsFile = new File(credsFilePath, "").getText('UTF-8')
            def json = new groovy.json.JsonSlurper().parseText(credsFile)
            storeFile file(json.android.storeFile)
            storePassword = json.android.storePassword
            keyAlias = json.android.keyAlias
            keyPassword = json.android.keyPassword
        }
        ...
        buildTypes {
            release {
                signingConfig signingConfigs.release //I added this
                // ...
            }
        }
    }
// ...
}

The reason I chose a .json file type, and not a .properties file type (as in the accepted answer), is because I wanted to also store other data (other custom properties I needed) to that same file (my_project/credentials.json), and still have gradle parse the signing information from within that file as well.