Auto increment versioncode only on releases

Question

Currently I'm trying to improve our buildscript with auto incrementing the versioncode so our QA team has got a clue what build they are testing and can log against a specific versioncode. We have got 3 productFlavors (staging, qa, production) and 2 signing configs (debug, release).

I looked into different solutions:

How to autoincrement versionCode in Android Gradle

How to autoincrement versionCode in Android Gradle

Autoincrement VersionCode with gradle extra properties

Based on those answers I've built a versioncode incrementor using a version.properties file.

Now the problem arises that for EVERY productFlavor and SigningConfig combination (+ the gradle sync in android studio) a new versioncode is generated. I want the versioncode to increment whenever I hit the play button to create a qaRelease build. So our buildcycle would be:

• development (never change the versioncode)
• qual (Update the versioncode)
• production (never change the versioncode)

Answer 1

How I solved it:

• I created a file version.properties in the root of my android project and added the versioncode in it.

• Then I created method called getCurrentVersionCode() in my build.gradle file that reads the current versioncode.

Code:

def getCurrentVersionCode() {
    def versionPropsFile = file('version.properties')
    def Properties versionProps = new Properties()

    versionProps.load(new FileInputStream(versionPropsFile))

    return versionProps['version_code'].toInteger()
}

I also created a method to generate a new code:

Code:

// http://stackoverflow.com/questions/30523393/auto-increment-versioncode-only-on-releases
//
def setUpdatedVersionCode() {
    def versionPropsFile = file('version.properties')
    def Properties versionProps = new Properties()

    def code = getCurrentVersionCode() + 1

    versionProps['version_code'] = code.toString()
    versionProps['version_name'] = generateVersionName()

    versionProps.store(versionPropsFile.newWriter(), null)
}

and then I created a task that triggers on a QA build.

Code:

task('increaseVersionCode') << {
    setUpdatedVersionCode()
}

tasks.whenTaskAdded { task ->
    if (task.name == 'assembleQaRelease') {
        task.dependsOn 'increaseVersionCode'
    }
}

That way it saves the versioncode in a separate file so I don't need to edit my build.gradle.