3f2741215f
R8 full mode requires an explicit keep rule for keeping attributes for a given target (class/method/member). As such, we can set the global rule for keeping these attributes with minimal cost while reducing the maintenance burden for adding incremental keep rules. For a typical Android build, this adds <20KB total to the image. Bug: 215530220 Test: m Change-Id: Iad3de32e27da0ca93b618d8a203ee65bae0bb5d1
111 lines
4.7 KiB
Text
111 lines
4.7 KiB
Text
# Some classes in the libraries extend package private classes to chare common functionality
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# that isn't explicitly part of the API
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-dontskipnonpubliclibraryclasses -dontskipnonpubliclibraryclassmembers
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# Preserve line number information for debugging stack traces.
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-keepattributes SourceFile,LineNumberTable
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# Annotations are implemented as attributes, so we have to explicitly keep them.
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# Keep all runtime-visible annotations like RuntimeVisibleParameterAnnotations
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# and RuntimeVisibleTypeAnnotations, as well as associated defaults.
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-keepattributes RuntimeVisible*Annotation*,AnnotationDefault
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# With R8 full mode, certain attributes are only kept when matched with an
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# explicit keep rule for that target, even with a global -keepattributes rule.
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# As such, we can add the global keep rule here with minimal cost while
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# simplifying incremental development.
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-keepattributes Exceptions
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# For enumeration classes, see http://proguard.sourceforge.net/manual/examples.html#enumerations
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-keepclassmembers enum * {
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public static **[] values();
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public static ** valueOf(java.lang.String);
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}
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# For native methods, see http://proguard.sourceforge.net/manual/examples.html#native
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-keepclasseswithmembernames,includedescriptorclasses class * {
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native <methods>;
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}
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# class$ methods are inserted by some compilers to implement .class construct,
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# see http://proguard.sourceforge.net/manual/examples.html#library
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-keepclassmembernames class * {
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java.lang.Class class$(java.lang.String);
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java.lang.Class class$(java.lang.String, boolean);
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}
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# Keep serializable classes and necessary members for serializable classes
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# Copied from the ProGuard manual at http://proguard.sourceforge.net.
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-keepnames class * implements java.io.Serializable
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-keepclassmembers class * implements java.io.Serializable {
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static final long serialVersionUID;
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private static final java.io.ObjectStreamField[] serialPersistentFields;
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!static !transient <fields>;
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private void writeObject(java.io.ObjectOutputStream);
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private void readObject(java.io.ObjectInputStream);
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java.lang.Object writeReplace();
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java.lang.Object readResolve();
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}
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# Keep all Javascript API methods
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-keepclassmembers class * {
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@android.webkit.JavascriptInterface <methods>;
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}
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# Keep Throwable's constructor that takes a String argument.
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-keepclassmembers class * extends java.lang.Throwable {
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<init>(java.lang.String);
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}
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# Please specify classes to be kept explicitly in your package's configuration.
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# -keep class * extends android.app.Activity
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# -keep class * extends android.view.View
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# -keep class * extends android.app.Service
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# -keep class * extends android.content.BroadcastReceiver
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# -keep class * extends android.content.ContentProvider
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# -keep class * extends android.preference.Preference
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# -keep class * extends android.app.BackupAgent
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# Parcelable CREATORs must be kept for Parcelable functionality
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-keepclassmembers class * implements android.os.Parcelable {
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public static final ** CREATOR;
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}
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# The support library contains references to newer platform versions.
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# Don't warn about those in case this app is linking against an older
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# platform version. We know about them, and they are safe.
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# See proguard-android.txt in the SDK package.
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#
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# DO NOT USE THIS: We figured it's dangerous to blindly ignore all support library warnings.
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# ProGuard may strip members of subclass of unknown super classes, in case an app is linking against
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# LOCAL_SDK_VERSION lower than the support library's LOCAL_SDK_VERSION.
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# See bug/20658265.
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# -dontwarn android.support.**
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# From https://github.com/google/guava/wiki/UsingProGuardWithGuava
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# Striped64, LittleEndianByteArray, UnsignedBytes, AbstractFuture
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-dontwarn sun.misc.Unsafe
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# Futures.getChecked (which often won't work with Proguard anyway) uses this. It
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# has a fallback, but again, don't use Futures.getChecked on Android regardless.
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-dontwarn java.lang.ClassValue
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# Ignore missing annotation references for various support libraries.
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# While this is not ideal, it should be relatively safe given that
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# 1) runtime-visible annotations will still be kept, and 2) compile-time
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# annotations are stripped by R8 anyway.
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# Note: The ** prefix is used to accommodate jarjar repackaging.
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# TODO(b/242088131): Remove these exemptions after resolving transitive libs
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# dependencies that are provided to R8.
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-dontwarn **android**.annotation*.**
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-dontwarn **com.google.errorprone.annotations.**
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-dontwarn javax.annotation.**
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-dontwarn org.checkerframework.**
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-dontwarn org.jetbrains.annotations.**
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# Less spammy.
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-dontnote
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# The lite proto runtime uses reflection to access fields based on the names in
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# the schema, keep all the fields. Wildcard is used to apply the rule to classes
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# that have been renamed with jarjar.
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-keepclassmembers class * extends **.protobuf.MessageLite { <fields>; }
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