Contribute dependencies selectively to generation process

docs/changelog.md

@@ -18,6 +18,22 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
       disabledFeature("Feature")
     }
     ```
+- Dependencies can now selectively contribute to generation process.
+    ```groovy
+    laboratory {
+      featureFactory()
+      featureSourceFactory()
+      sourcedStorage()
+      optionFactory()
+    
+      dependency(project(":feature"), [
+        DependencyContribution.FeatureFactory,
+        DependencyContribution.FeatureSourceFactory, 
+        DependencyContribution.OptionFactory, 
+        DependencyContribution.SourcedStorage,
+      ])
+    }
+    ```
 
 ### Changed
 - Gradle tasks are now always registered when plugin is applied in a project. If there is nothing to generate tasks will clear their respective output directories. 

docs/gradle-plugin.md

@@ -658,6 +658,9 @@ laboratory {
 
   // Includes feature flags that are used for generation of feature factories, sourced storage and option factory.
   dependency(project(":some-project"))
+  // By default dependency contributes to all declared generators but it can be selectively applied
+  // by passing a contribution list.
+  dependency(project(":some-project"), [DependencyContribution.FeatureFactory, DependencyContribution.OptionFactory])
   // If typesafe project accessors are enabled.
   dependency(projects.someProject)
 }

laboratory/gradle-plugin/api/gradle-plugin.api

@@ -8,6 +8,16 @@ public final class io/mehow/laboratory/gradle/ChildFeatureFlagsInput : java/io/S
 	public final fun feature (Ljava/lang/String;Lorg/gradle/api/Action;)V
 }
 
+public final class io/mehow/laboratory/gradle/DependencyContribution : java/lang/Enum {
+	public static final field FeatureFactory Lio/mehow/laboratory/gradle/DependencyContribution;
+	public static final field FeatureSourceFactory Lio/mehow/laboratory/gradle/DependencyContribution;
+	public static final field OptionFactory Lio/mehow/laboratory/gradle/DependencyContribution;
+	public static final field SourcedStorage Lio/mehow/laboratory/gradle/DependencyContribution;
+	public static fun getEntries ()Lkotlin/enums/EnumEntries;
+	public static fun valueOf (Ljava/lang/String;)Lio/mehow/laboratory/gradle/DependencyContribution;
+	public static fun values ()[Lio/mehow/laboratory/gradle/DependencyContribution;
+}
+
 public final class io/mehow/laboratory/gradle/DeprecationLevel : java/lang/Enum {
 	public static final field Error Lio/mehow/laboratory/gradle/DeprecationLevel;
 	public static final field Hidden Lio/mehow/laboratory/gradle/DeprecationLevel;
@@ -68,7 +78,11 @@ public final class io/mehow/laboratory/gradle/FeatureFlagInput$MultiOption : io/
 public abstract class io/mehow/laboratory/gradle/LaboratoryExtension {
 	public fun <init> ()V
 	public final fun dependency (Lorg/gradle/api/Project;)V
+	public final fun dependency (Lorg/gradle/api/Project;Ljava/util/Collection;)V
 	public final fun dependency (Lorg/gradle/api/internal/catalog/DelegatingProjectDependency;)V
+	public final fun dependency (Lorg/gradle/api/internal/catalog/DelegatingProjectDependency;Ljava/util/Collection;)V
+	public static synthetic fun dependency$default (Lio/mehow/laboratory/gradle/LaboratoryExtension;Lorg/gradle/api/Project;Ljava/util/Collection;ILjava/lang/Object;)V
+	public static synthetic fun dependency$default (Lio/mehow/laboratory/gradle/LaboratoryExtension;Lorg/gradle/api/internal/catalog/DelegatingProjectDependency;Ljava/util/Collection;ILjava/lang/Object;)V
 	public final fun disabledFeature (Ljava/lang/String;)V
 	public final fun disabledFeature (Ljava/lang/String;Lorg/gradle/api/Action;)V
 	public static synthetic fun disabledFeature$default (Lio/mehow/laboratory/gradle/LaboratoryExtension;Ljava/lang/String;Lorg/gradle/api/Action;ILjava/lang/Object;)V

laboratory/gradle-plugin/src/main/kotlin/io/mehow/laboratory/gradle/DependencyContribution.kt

@@ -0,0 +1,19 @@
+package io.mehow.laboratory.gradle
+
+/**
+ * Possible contributions of a dependency to feature flag generation. See [LaboratoryExtension.dependency]
+ * for more info.
+ */
+public enum class DependencyContribution {
+  /** Contribute to [LaboratoryExtension.featureFactory]. */
+  FeatureFactory,
+
+  /** Contribute to [LaboratoryExtension.featureSourceFactory]. */
+  FeatureSourceFactory,
+
+  /** Contribute to [LaboratoryExtension.optionFactory]. */
+  OptionFactory,
+
+  /** Contribute to [LaboratoryExtension.sourcedStorage]. */
+  SourcedStorage,
+}

laboratory/gradle-plugin/src/main/kotlin/io/mehow/laboratory/gradle/LaboratoryExtension.kt

@@ -20,9 +20,13 @@ public abstract class LaboratoryExtension {
 
   private val packageNameProvider = PackageNameProvider()
 
-  private val mutableDependencies = mutableListOf<FeatureFlagInput>()
+  private val externalDependencies = mutableMapOf<DependencyContribution, List<FeatureFlagInput>>()
 
-  internal val factoryFeatureFlags get() = featureFlags + mutableDependencies
+  internal val factoryFeatureFlags get() = buildMap {
+    DependencyContribution.entries.forEach { entry ->
+      put(entry, featureFlags + externalDependencies[entry].orEmpty())
+    }
+  }
 
   internal lateinit var project: Project
 
@@ -147,21 +151,38 @@ public abstract class LaboratoryExtension {
 
   /**
    * Includes a [project] during feature flags contribution to [featureFactory], [featureSourcesFactory],
-   * [sourcedStorage] or [optionFactory]. Included project must have Laboratory plugin applied.
+   * [sourcedStorage] or [optionFactory]. Contribution can be selective applied by supplying [contributeTo] collection.
+   *
+   * Included project must have Laboratory plugin applied.
    */
-  public fun dependency(project: DelegatingProjectDependency) {
-    dependency(project.dependencyProject)
+  @JvmOverloads
+  public fun dependency(
+    project: DelegatingProjectDependency,
+    contributeTo: Collection<DependencyContribution> = DependencyContribution.entries,
+  ) {
+    dependency(project.dependencyProject, contributeTo)
   }
 
   /**
    * Includes a [project] during feature flags contribution to [featureFactory], [featureSourcesFactory],
-   * [sourcedStorage] or [optionFactory]. Included project must have Laboratory plugin applied.
+   * [sourcedStorage] or [optionFactory]. Contribution can be selective applied by supplying [contributeTo] collection.
+   *
+   * Included project must have Laboratory plugin applied.
    */
-  public fun dependency(project: Project) {
+  @JvmOverloads
+  public fun dependency(
+    project: Project,
+    contributeTo: Collection<DependencyContribution> = DependencyContribution.entries,
+  ) {
+    require(contributeTo.isNotEmpty()) {
+      "Dependency in project '${this.project.name}' on '${project.name}' must have at least one contribution"
+    }
     this.project.evaluationDependsOn(project.path)
     val laboratoryExtension = requireNotNull(project.extensions.findByType(LaboratoryExtension::class.java)) {
       "Cannot depend on a project without laboratory plugin"
     }
-    mutableDependencies += laboratoryExtension.featureFlags
+    contributeTo.forEach { entry ->
+      externalDependencies[entry] = externalDependencies[entry].orEmpty() + laboratoryExtension.featureFlags
+    }
   }
 }

laboratory/gradle-plugin/src/main/kotlin/io/mehow/laboratory/gradle/LaboratoryPlugin.kt

@@ -62,7 +62,7 @@ public class LaboratoryPlugin : Plugin<Project> {
       task.group = PluginName
       task.description = "Generate feature factory"
       task.factory.set(extension.factoryInput)
-      task.features.set(extension.factoryFeatureFlags)
+      task.features.set(extension.factoryFeatureFlags.getValue(DependencyContribution.FeatureFactory))
       task.outputDirectory.set(layout.buildDirectory.dir("generated/laboratory/code/feature-factory"))
     }
   }
@@ -75,7 +75,7 @@ public class LaboratoryPlugin : Plugin<Project> {
       task.group = PluginName
       task.description = "Generate sourced feature storage"
       task.storage.set(extension.storageInput)
-      task.features.set(extension.factoryFeatureFlags)
+      task.features.set(extension.factoryFeatureFlags.getValue(DependencyContribution.SourcedStorage))
       task.outputDirectory.set(layout.buildDirectory.dir("generated/laboratory/code/sourced-storage"))
     }
   }
@@ -88,7 +88,7 @@ public class LaboratoryPlugin : Plugin<Project> {
       task.group = PluginName
       task.description = "Generate option factory"
       task.factory.set(extension.optionFactoryInput)
-      task.features.set(extension.factoryFeatureFlags)
+      task.features.set(extension.factoryFeatureFlags.getValue(DependencyContribution.OptionFactory))
       task.outputDirectory.set(layout.buildDirectory.dir("generated/laboratory/code/option-factory"))
     }
   }
@@ -101,7 +101,7 @@ public class LaboratoryPlugin : Plugin<Project> {
       task.group = PluginName
       task.description = "Generate feature source factory"
       task.factory.set(extension.featureSourcesFactory)
-      task.features.set(extension.factoryFeatureFlags)
+      task.features.set(extension.factoryFeatureFlags.getValue(DependencyContribution.FeatureSourceFactory))
       task.outputDirectory.set(layout.buildDirectory.dir("generated/laboratory/code/feature-source-factory"))
     }
   }