fix: use prebuilt aapt2 file when building for F-Droid

build-logic/ide/src/main/java/FDroidConfig.kt

@@ -1,6 +1,3 @@
-import org.gradle.api.Project
-import java.io.File
-
 /*
  *  This file is part of AndroidIDE.
  *
@@ -18,6 +15,9 @@ import java.io.File
  *   along with AndroidIDE.  If not, see <https://www.gnu.org/licenses/>.
  */
 
+import org.gradle.api.Project
+import java.io.File
+
 /**
  * @author Akash Yadav
  */
@@ -28,6 +28,10 @@ object FDroidConfig {
 
   var isFDroidBuild: Boolean = false
     private set
+    get() = hasRead && field
+
+  var fDroidBuildArch: String? = null
+    private set
 
   var fDroidVersionName: String? = null
     private set
@@ -35,9 +39,14 @@ object FDroidConfig {
   var fDroidVersionCode: Int? = null
     private set
 
+  var fDroidAapt2File: String? = null
+    private set
+
   const val PROP_FDROID_BUILD = "ide.build.fdroid"
+  const val PROP_FDROID_BUILD_ARCH = "ide.build.fdroid.arch"
   const val PROP_FDROID_BUILD_VERSION = "ide.build.fdroid.version"
   const val PROP_FDROID_BUILD_VERCODE = "ide.build.fdroid.vercode"
+  const val PROP_FDROID_AAPT2FILE = "ide.build.fdroid.aapt2File"
 
   fun load(project: Project) {
     val propsFile = File(project.rootDir, "fdroid.properties")
@@ -56,7 +65,9 @@ object FDroidConfig {
     hasRead = true
     isFDroidBuild = properties.getProperty(PROP_FDROID_BUILD, null).toBoolean()
 
+    fDroidBuildArch = properties.getProperty(PROP_FDROID_BUILD_ARCH, null)
     fDroidVersionName = properties.getProperty(PROP_FDROID_BUILD_VERSION, null)
     fDroidVersionCode =  properties.getProperty(PROP_FDROID_BUILD_VERCODE, null)?.toInt()
+    fDroidAapt2File = properties.getProperty(PROP_FDROID_AAPT2FILE, null)
   }
 }

build-logic/ide/src/main/java/com/itsaky/androidide/plugins/AndroidIDEAssetsPlugin.kt

@@ -18,9 +18,11 @@
 package com.itsaky.androidide.plugins
 
 import BuildConfig
+import FDroidConfig
 import VersionUtils
 import com.android.build.api.variant.AndroidComponentsExtension
 import com.android.build.gradle.BaseExtension
+import com.itsaky.androidide.plugins.conf.flavorsAbis
 import com.itsaky.androidide.plugins.tasks.AddAndroidJarToAssetsTask
 import com.itsaky.androidide.plugins.tasks.AddFileToAssetsTask
 import com.itsaky.androidide.plugins.tasks.DownloadAapt2Task
@@ -31,6 +33,7 @@ import org.gradle.api.Plugin
 import org.gradle.api.Project
 import org.gradle.api.tasks.TaskProvider
 import org.gradle.configurationcache.extensions.capitalized
+import java.io.File
 
 /**
  * Handles asset copying and generation.
@@ -57,15 +60,7 @@ class AndroidIDEAssetsPlugin : Plugin<Project> {
       val androidComponentsExtension = extensions.getByType(AndroidComponentsExtension::class.java)
       val baseExtension = extensions.getByType(BaseExtension::class.java)
 
-      val aapt2Tasks = mutableMapOf<String, TaskProvider<DownloadAapt2Task>>()
-      baseExtension.productFlavors.forEach { flavor ->
-        aapt2Tasks[flavor.name] = tasks.register("downloadAapt2${flavor.name.capitalized()}",
-          DownloadAapt2Task::class.java) {
-          arch.set(flavor.name)
-          checksum.set(AAPT2_CHECKSUMS[flavor.name] ?: throw IllegalStateException(
-            "Checksum for aapt2-${flavor.name} not found!"))
-        }
-      }
+      val aapt2Tasks = getAapt2DownloadTasks(baseExtension)
 
       val addAndroidJarTaskProvider = tasks.register("addAndroidJarToAssets",
         AddAndroidJarToAssetsTask::class.java) {
@@ -74,9 +69,17 @@ class AndroidIDEAssetsPlugin : Plugin<Project> {
 
       androidComponentsExtension.onVariants { variant ->
 
-        val downloadAapt2TaskProvider = aapt2Tasks[variant.flavorName]
-          ?: throw IllegalStateException(
-            "'aapt2' task not registered for flavor '${variant.flavorName}'")
+        if (aapt2Tasks.isNotEmpty()) {
+          val downloadAapt2TaskProvider = aapt2Tasks[variant.flavorName]
+            ?: throw IllegalStateException(
+              "'aapt2' task not registered for flavor '${variant.flavorName}'")
+
+          variant.sources.assets?.addGeneratedSourceDirectory(downloadAapt2TaskProvider,
+            DownloadAapt2Task::outputDirectory)
+        } else {
+          variant.sources.assets?.addStaticSourceDirectory(
+            getStaticFDroidAapt2Dir(variant.flavorName!!))
+        }
 
         val variantNameCapitalized = variant.name.capitalized()
 
@@ -86,9 +89,6 @@ class AndroidIDEAssetsPlugin : Plugin<Project> {
         variant.sources.assets?.addGeneratedSourceDirectory(addAndroidJarTaskProvider,
           AddAndroidJarToAssetsTask::outputDirectory)
 
-        variant.sources.assets?.addGeneratedSourceDirectory(downloadAapt2TaskProvider,
-          DownloadAapt2Task::outputDirectory)
-
         // Init script generator
         val generateInitScript = tasks.register(
           "generate${variantNameCapitalized}InitScript",
@@ -126,5 +126,64 @@ class AndroidIDEAssetsPlugin : Plugin<Project> {
       }
     }
   }
+
+  private fun Project.getStaticFDroidAapt2Dir(flavorName: String): String {
+    val fdroidArch = FDroidConfig.fDroidBuildArch!!
+    val fdroidAapt2 = FDroidConfig.fDroidAapt2File!!
+
+    require(fdroidArch in flavorsAbis.keys) {
+      "F-Droid arch '${fdroidArch}' is not supported!"
+    }
+
+
+    val inFile = File(fdroidAapt2)
+    require(inFile.exists() && inFile.isFile) {
+      "F-Droid AAPT2 file does not exist or is not a file: $inFile"
+    }
+
+    val assetDir = project.layout.buildDirectory.dir("intermediates/fdroid-aapt2-${flavorName}")
+      .get().asFile
+
+    if (assetDir.exists()) {
+      assetDir.deleteRecursively()
+    }
+
+    assetDir.mkdirs()
+
+    val outFile = File(assetDir, "data/$flavorName/aapt2")
+    outFile.parentFile.mkdirs()
+
+    inFile.copyTo(outFile, overwrite = true)
+
+    return assetDir.absolutePath
+  }
+
+  private fun Project.getAapt2DownloadTasks(
+    baseExtension: BaseExtension
+  ): Map<String, TaskProvider<DownloadAapt2Task>> {
+
+    if (FDroidConfig.isFDroidBuild) {
+      // Do not download AAPT2 when building for F-Droid
+      return emptyMap()
+    }
+
+    val aapt2Tasks = mutableMapOf<String, TaskProvider<DownloadAapt2Task>>()
+
+    baseExtension.productFlavors.forEach { flavor ->
+
+      val task = tasks.register(
+        "downloadAapt2${flavor.name.capitalized()}",
+        DownloadAapt2Task::class.java
+      ) {
+        arch.set(flavor.name)
+        checksum.set(AAPT2_CHECKSUMS[flavor.name] ?: throw IllegalStateException(
+          "Checksum for aapt2-${flavor.name} not found!"))
+      }
+
+      aapt2Tasks[flavor.name] = task
+    }
+
+    return aapt2Tasks
+  }
 }
 

build-logic/ide/src/main/java/com/itsaky/androidide/plugins/conf/AndroidModuleConf.kt

@@ -33,9 +33,7 @@ import projectVersionCode
  * For example, if the base version code of the IDE is 270 (for v2.7.0), then for arm64-v8a
  * flavor, the version code will be `100 * 270 + 1` i.e. `2701`
  */
-// IMPORTANT: When changing the configuration here, make sure to update the following file:
-//    - <root>/scripts/setup_fdroid_build.sh
-private val flavorsAbis = mapOf("arm64-v8a" to 1, "armeabi-v7a" to 2, "x86_64" to 3)
+internal val flavorsAbis = mapOf("arm64-v8a" to 1, "armeabi-v7a" to 2, "x86_64" to 3)
 private val disableCoreLibDesugaringForModules = arrayOf(":logsender", ":logger")
 
 fun Project.configureAndroidModule(

build.gradle.kts

@@ -41,6 +41,9 @@ buildscript {
 }
 
 subprojects {
+  // Always load the F-Droid config
+  FDroidConfig.load(project)
+
   afterEvaluate {
     apply { plugin(AndroidIDEPlugin::class.java) }
   }