fix: make android library evaluation depends on expo (#141)

* fix: add evaluation dependency on expo

* feat: add guard for expo evaluation

Author: hurali97

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/artifacts/ArtifactsResolver.kt

@@ -20,6 +20,7 @@ import com.callstack.react.brownfield.processors.VariantTaskProvider
 import com.callstack.react.brownfield.shared.BaseProject
 import com.callstack.react.brownfield.shared.GradleProps
 import com.callstack.react.brownfield.utils.Extension
+import com.callstack.react.brownfield.utils.Utils
 import org.gradle.api.ProjectConfigurationException
 import org.gradle.api.artifacts.Configuration
 import org.gradle.api.artifacts.ResolvedArtifact
@@ -55,7 +56,7 @@ class ArtifactsResolver(
          * expo project does not exist in example-android-library so doing an
          * early exit.
          */
-        if (baseProject.project.name == "example-android-library") {
+        if (Utils.isExampleLibrary(baseProject.project.name)) {
             return
         }
 

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/plugin/RNBrownfieldPlugin.kt

@@ -28,8 +28,19 @@ class RNBrownfieldPlugin
 
         override fun apply(project: Project) {
             verifyAndroidPluginApplied(project)
-
             initializers(project)
+
+            /**
+             * Make sure that expo project is evaluated before the android library.
+             * This ensures that the expo modules are available to link with the
+             * android library, when it is evaluated.
+             */
+            val expoProjectPath = ":expo"
+            val hasExpoProject = project.findProject(expoProjectPath) != null
+            if (hasExpoProject) {
+                project.evaluationDependsOn(expoProjectPath)
+            }
+
             RNSourceSets.configure(project, extension)
             projectConfigurations.setup()
             registerRClassTransformer()

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/plugin/RNSourceSets.kt

@@ -3,6 +3,7 @@ package com.callstack.react.brownfield.plugin
 import com.android.build.gradle.LibraryExtension
 import com.callstack.react.brownfield.exceptions.NameSpaceNotFound
 import com.callstack.react.brownfield.utils.Extension
+import com.callstack.react.brownfield.utils.Utils
 import org.gradle.api.Project
 import org.gradle.api.Task
 import org.gradle.api.file.Directory
@@ -27,7 +28,7 @@ object RNSourceSets {
          * be present on the consuming library, which is not the case
          * with our example library.
          */
-        if (project.name == "example-android-library") {
+        if (Utils.isExampleLibrary(project.name)) {
             return
         }
         this.project = project

gradle-plugins/react/brownfield/src/main/kotlin/com/callstack/react/brownfield/utils/Utils.kt

@@ -36,4 +36,8 @@ object Utils {
             output.appendText("\n${file.readText(Charsets.UTF_8)}\n")
         }
     }
+
+    fun isExampleLibrary(projectName: String): Boolean {
+        return projectName == "example-android-library"
+    }
 }