deps: use aar

Bundle our custom ExoPlayer components into aar instead of directly
depending on the project. This just makes things far better regarding
ease of use and reproducible builds.

.gitignore

@@ -4,6 +4,7 @@ local.properties
 build/
 release/
 srclibs/
+libs/
 
 # Studio
 .idea/

app/build.gradle

@@ -54,8 +54,6 @@ afterEvaluate {
 }
 
 dependencies {
-    implementation fileTree(dir: "libs", include: ["*.jar"])
-
     // Kotlin
     implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
     implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version"
@@ -94,9 +92,7 @@ dependencies {
 
     // --- THIRD PARTY ---
 
-    // ExoPlayer
-    implementation project(':exoplayer-library-core')
-    implementation project(':exoplayer-extension-flac')
+    // Exoplayer
 
     // Image loading
     implementation 'io.coil-kt:coil:2.0.0-alpha06'
@@ -108,6 +104,16 @@ dependencies {
 
     // Lint
     ktlint 'com.pinterest:ktlint:0.43.2'
+
+    // WARNING: THE EXOPLAYER VERSION MUST BE KEPT IN LOCK-STEP WITH THE CUSTOM EXTRACTOR AND FLAC
+    // EXTENSION BLOBS. IF NOT, VERY UNFRIENDLY BUILD FAILURES AND CRASHES MAY ENSUE.
+    def exoplayer_version = "2.16.1"
+    implementation("com.google.android.exoplayer:exoplayer-core:$exoplayer_version") {
+        exclude group: "com.google.android.exoplayer", module: "exoplayer-extractor"
+    }
+
+    implementation fileTree(dir: "libs", include: ["extension-*.aar"])
+    implementation fileTree(dir: "libs", include: ["library-*.aar"])
 }
 
 task ktlint(type: JavaExec, group: "verification") {

prebuild.py

@@ -16,8 +16,6 @@ INFO="\033[1;94m"
 OK="\033[1;92m"
 NC="\033[0m"
 
-print('curl "https://ftp.osuosl.org/pub/xiph/releases/flac/flac-' + FLAC_VERSION + '.tar.xz" | tar xJ && mv "flac-' + FLAC_VERSION + '" flac')
-
 system = platform.system()
 
 # We do some shell scripting later on, so we can't support windows.
@@ -31,8 +29,10 @@ def sh(cmd):
     if code != 0:
         print(FATAL + "fatal:" + NC + " command failed with exit code " + str(code))
         sys.exit(1)
-        
-exoplayer_path = os.path.join(os.path.abspath(os.curdir), "app", "srclibs", "exoplayer")
+
+start_path = os.path.join(os.path.abspath(os.curdir))
+libs_path = os.path.join(start_path, "app", "src", "libs")
+exoplayer_path = os.path.join(start_path, "app", "srclibs", "exoplayer")
 
 if os.path.exists(exoplayer_path):
     reinstall = input(INFO + "info:" + NC + " exoplayer is already installed. would you like to reinstall it? [y/n] ")
@@ -72,6 +72,7 @@ if ndk_path is None or not os.path.isfile(os.path.join(ndk_path, "ndk-build")):
 
 # Now try to install ExoPlayer.
 sh("rm -rf " + exoplayer_path)
+sh("rm -rf " + libs_path)
 
 print(INFO + "info:" + NC + " cloning exoplayer...")
 sh("git clone https://github.com/oxygencobalt/ExoPlayer.git " + exoplayer_path)
@@ -85,4 +86,20 @@ os.chdir(flac_ext_jni_path)
 sh('curl "https://ftp.osuosl.org/pub/xiph/releases/flac/flac-' + FLAC_VERSION + '.tar.xz" | tar xJ && mv "flac-' + FLAC_VERSION + '" flac')
 sh(ndk_build_path + " APP_ABI=all -j4")
 
+print(INFO + "info:" + NC + " assembling libraries")
+extractor_aar_path = os.path.join(
+    exoplayer_path, "library", "extractor", "buildout",
+    "outputs", "aar", "library-extractor-release.aar"
+)
+flac_ext_aar_path = os.path.join(
+    exoplayer_path, "extensions", "flac", "buildout",
+    "outputs", "aar", "extension-flac-release.aar"
+)
+os.chdir(exoplayer_path)
+sh("./gradlew library-extractor:bundleReleaseAar")
+sh("./gradlew extension-flac:bundleReleaseAar")
+os.chdir(start_path)
+sh("cp " + extractor_aar_path + " " + libs_path)
+sh("cp " + flac_ext_aar_path + " " + libs_path)
+
 print(OK + "success:" + NC + " completed pre-build.")

settings.gradle

@@ -1,4 +1,2 @@
 include ':app'
 rootProject.name = "Auxio"
-gradle.ext.exoplayerModulePrefix = 'exoplayer-'
-apply from: file("app/srclibs/exoplayer/core_settings.gradle")