Detect code source files that live outside of src/main as an AGP feature being used

Author: joshfriend

src/functionalTest/groovy/com/autonomousapps/android/projects/AndroidTestDependenciesProject.groovy

@@ -132,6 +132,15 @@ abstract class AndroidTestDependenciesProject extends AbstractAndroidProject {
           }
         """.stripIndent()
       ),
+      new Source(
+        SourceType.JAVA, "Debug", "com/example",
+        """\
+          package com.example;
+
+          public class Debug { }
+        """.stripIndent(),
+        "debug"
+      ),
       new Source(
         SourceType.JAVA, "Spec", "com/example",
         """\

src/main/kotlin/com/autonomousapps/internal/analyzer/AndroidSources.kt

@@ -1,5 +1,7 @@
 // Copyright (c) 2024. Tony Robalik.
 // SPDX-License-Identifier: Apache-2.0
+@file:Suppress("UnstableApiUsage")
+
 package com.autonomousapps.internal.analyzer
 
 import com.android.build.api.artifact.Artifacts

src/main/kotlin/com/autonomousapps/internal/reason/ModuleAdviceExplainer.kt

@@ -62,6 +62,7 @@ internal class ModuleAdviceExplainer(
       if (hasAndroidAssets) appendReproducibleNewLine("* Contains Android assets.")
       if (hasBuildConfig) appendReproducibleNewLine("* Includes BuildConfig.")
       if (hasAndroidDependencies) appendReproducibleNewLine("* Has Android library dependencies.")
+      if (hasBuildTypeSourceSplits) appendReproducibleNewLine("* Has non-main source splits.")
     }
   }
 }

src/main/kotlin/com/autonomousapps/model/ModuleAdvice.kt

@@ -52,6 +52,7 @@ data class AndroidScore(
   val usesAndroidClasses: Boolean,
   val hasBuildConfig: Boolean,
   val hasAndroidDependencies: Boolean,
+  val hasBuildTypeSourceSplits: Boolean,
 ) : ModuleAdvice() {
 
   override val name: String = "android"
@@ -64,6 +65,7 @@ data class AndroidScore(
     if (usesAndroidClasses) count += 2
     if (hasBuildConfig) count += 0.5f
     if (hasAndroidDependencies) count += 0.5f
+    if (hasBuildTypeSourceSplits) count +=  0.25f
     count
   }
 
@@ -82,13 +84,15 @@ data class AndroidScore(
       var hasBuildConfig = false
       var usesAndroidClasses = false
       var hasAndroidDependencies = false
+      var hasBuildTypeSourceSplits = false
 
       scores.forEach {
         hasAndroidAssets = hasAndroidAssets || it.hasAndroidAssets
         hasAndroidRes = hasAndroidRes || it.hasAndroidRes
         hasBuildConfig = hasBuildConfig || it.hasBuildConfig
         usesAndroidClasses = usesAndroidClasses || it.usesAndroidClasses
         hasAndroidDependencies = hasAndroidDependencies || it.hasAndroidDependencies
+        hasBuildTypeSourceSplits = hasBuildTypeSourceSplits || it.hasBuildTypeSourceSplits
       }
 
       return AndroidScore(
@@ -97,6 +101,7 @@ data class AndroidScore(
         hasBuildConfig = hasBuildConfig,
         usesAndroidClasses = usesAndroidClasses,
         hasAndroidDependencies = hasAndroidDependencies,
+        hasBuildTypeSourceSplits = hasBuildTypeSourceSplits,
       )
     }
   }

src/main/kotlin/com/autonomousapps/model/internal/intermediates/AndroidScoreVariant.kt

@@ -13,4 +13,5 @@ internal data class AndroidScoreVariant(
   val hasBuildConfig: Boolean,
   val usesAndroidClasses: Boolean,
   val hasAndroidDependencies: Boolean,
+  val hasBuildTypeSourceSplits: Boolean,
 )

src/main/kotlin/com/autonomousapps/tasks/AndroidScoreTask.kt

@@ -72,6 +72,7 @@ abstract class AndroidScoreTask @Inject constructor(
       val usesAndroidClasses = project.usedNonAnnotationClasses.any { it.startsWith("android.") }
       val importsAndroidClasses = project.imports.any { it.startsWith("android.") }
       val hasAndroidDependencies = androidDependencies.isNotEmpty()
+      val hasBuildTypeSourceSplits = project.codeSource.any { !it.relativePath.startsWith("src/main") }
 
       val score = AndroidScoreVariant(
         variant = project.variant,
@@ -80,6 +81,7 @@ abstract class AndroidScoreTask @Inject constructor(
         hasBuildConfig = hasBuildConfig,
         usesAndroidClasses = usesAndroidClasses || importsAndroidClasses,
         hasAndroidDependencies = hasAndroidDependencies,
+        hasBuildTypeSourceSplits = hasBuildTypeSourceSplits
       )
 
       output.bufferWriteJson(score)

src/test/kotlin/com/autonomousapps/internal/reason/ModuleAdviceExplainerTest.kt

@@ -78,6 +78,7 @@ internal class ModuleAdviceExplainerTest {
         usesAndroidClasses = false,
         hasBuildConfig = false,
         hasAndroidDependencies = false,
+        hasBuildTypeSourceSplits = false
       )
     }
   }