Product Flavor structure

I have a project that uses ~30 product flavors. Apart from the "main" code, the flavors don't have much to them, just some unique resources. Since there are so many, I would like to structure my code directories like this to make it more organized:

src
- main
  - java
  - res
- productFlavors
  - flavor1
    - java
    - res

But the build doesn't recognize the flavors when they are on a different level than the "main" folder. Is there any way I can make this work?

Solution

I have a project that uses ~30 product flavors

One more, and you'll match Baskin-Robbins' original ~31 flavors.

But the build doesn't recognize the flavors when they are on a different level than the "main" folder. Is there any way I can make this work?

You can override where source comes from in your module's build.gradle file. While I haven't tried it for your scenario (only for building Eclipse-style projects using Gradle), something like this should work:

android {
    // lots of cool stuff here

    sourceSets {
        flavor1 {
            manifest.srcFile 'src/productFlavors/flavor1/AndroidManifest.xml'
            java.srcDirs = ['src/productFlavors/flavor1/java']
            aidl.srcDirs = ['src/productFlavors/flavor1/aidl']
            res.srcDirs = ['src/productFlavors/flavor1/res']
            assets.srcDirs = ['src/productFlavors/flavor1/assets']
        }

        // lather, rinse, repeat
    }
}

If you stick to the fixed pattern of src/productFlavors/.../ (where ... is the flavor name), you can probably use a bit of Groovy scripting to iterate over an array of flavor names and wire up the sourcesets accordingly.