Dynamically generating productFlavors and sourceSets using a list of names (with properties) in a CSV/TXT file

Question

This question in continuation of my other question, which i want to improve further.

I am being able to group flavors (having common configuration) under sourc

Answer 1

For reading XML and CSV files you have the full power of Groovy on your hand. All Gradle scripts are meant to be written in Groovy. .each { Type var -> is part of that too. First result: https://stackoverflow.com/a/2622965/253468:

Given a CSV file like this:

#name,appId,ad1,ad2,category
flavor1,app.id.flavor1,adunit1324523,adunit2234234,messenger
flavor2,app.id.flavor2,adunit42346451,adunit4562,editor
flavor3,app.id.flavor2.gpe,adunit345351,adunit3545342,messenger

Groovy can load it like this:

import com.android.build.gradle.BaseExtension
import com.android.build.gradle.api.AndroidSourceSet
import com.android.build.gradle.internal.dsl.ProductFlavor
// TODO get a real CSV parser, this is hacky
new File("flavors.csv").splitEachLine(",") { fields ->
    if (fields[0].charAt(0) == '#' as char) return; // skip comments
    def flavorName = fields[0];
    def baseName = flavorName.split('_')[0];
    def appId = fields[1];
    BaseExtension android = project.android // project.getExtensions().getByName('android'); 
    // productFlavors is declared as Collection, but it is a NamedDomainObjectContainer
    // if [flavorName] doesn't work, try .maybeCreate(flavorName) or .create(flavorName)
    ProductFlavor flavor = android.productFlavors[flavorName];
    AndroidSourceSet sourceSet = android.sourceSets[flavorName];
    flavor.applicationId = appId;
    sourceSet.res.srcDirs = [] // clear
    sourceSet.res.srcDir 'repo-mipmap/' + baseName
    sourceSet.res.srcDir 'repo-strings/' + flavorName
}

Types are imported for readability and code completion, you can replace any variable type with def and it'll still work. These types are just what is being used when you're doing the regular android { ... } configuration. Internal types may change at any time, in fact I'm working with 1.5 they may already have changed in 2.0.