android curl android-gradle-plugin build.gradle bitrise

Is it possible to set android version code and name via a Gradle task?

I'm trying to automate build process on CI that I'm working with. I am able to call a curl and assign it some variables such as version code and names. Then CI (in my case Bitrise CI) catch it and starts Release build. However, before that I want to set version code and version name based on what has been passed by curl into build.gradle file and then build process starts.

So, I'm thinking I can write a plugin/task that gets version code/name from a command line and then inject it in build.gradle file. A command like ./gradlew setVersion 1 1.0.

Threefore, by running this command from an script that I'll write, I will be able to run this gradle task and everyone from anywhere in the glob is able to create a release build by curl. Quite interesting :)

I am able to write a task similar to following code an put it into my main build.gradle file.

task setVersion << {
    println versionCode
    println versionName
}

and pass it some parameters via command line:

./gradlew -PversionCode=483 -PversionName=v4.0.3 setVersion

This is my output:

:setVersion
483
v4.0.3

BUILD SUCCESSFUL

Total time: 6.346 secs

So far so good. My question is how to set it in build.gradle file?

Solution

You can create methods to update the versionCode and versionName from the command line:

def getMyVersionCode = { ->
    def code = project.hasProperty('versionCode') ? versionCode.toInteger() : -1
    println "VersionCode is set to $code"
    return code
}

def getMyVersionName = { ->
    def name = project.hasProperty('versionName') ? versionName : "1.0"
    println "VersionName is set to $name"
    return name
}

Then in the android block:

defaultConfig {
        applicationId "your.app.id"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode getMyVersionCode()
        versionName getMyVersionName()

        archivesBaseName = "YourApp-${android.defaultConfig.versionName}"
    }

Then you can just call any task really:

./gradlew assembleDebug -PversionCode=483 -PversionName=4.0.3