Exclude specific build variants

Question

I have the two default build types: debug / release and a couple of flavors: prod / dev.

Now I want to exclude the build variant dev-release, but keep all other poss

Answer 1

Variant filter

Use the variantFilter of the gradle android plugin to mark certain combinations as ignored. Here is an example from the official documentation that works with flavor dimensions and shows how it can be used:

android {
  ...
  buildTypes {...}

  flavorDimensions "api", "mode"
  productFlavors {
    demo {...}
    full {...}
    minApi24 {...}
    minApi23 {...}
    minApi21 {...}
  }

  variantFilter { variant ->
      def names = variant.flavors*.name
      // To check for a certain build type, use variant.buildType.name == ""
      if (names.contains("minApi21") && names.contains("demo")) {
          // Gradle ignores any variants that satisfy the conditions above.
          setIgnore(true)
      }
  }
}

As the comment says, you can also check the buildType like so:

android {
    variantFilter { variant ->
        def names = variant.flavors*.name
        if(variant.buildType.name == 'release' && names.contains("myforbiddenflavor")) {
            setIgnore(true)
        }
    }
}