From e7b38b2b1d0e8e5b18e28fa66cd12c2ded5bf3cf Mon Sep 17 00:00:00 2001
From: Nullptr <52071314+Dr-TSNG@users.noreply.github.com>
Date: Mon, 4 Jul 2022 11:17:10 +0800
Subject: [PATCH] Proguard

---
 .github/workflows/main.yml |  2 +-
 build.gradle.kts           |  2 ++
 common/proguard-rules.pro  | 27 +++++++++++++++++++++++++++
 xposed/proguard-rules.pro  |  2 +-
 4 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 968e807..5ca6202 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -10,7 +10,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-    if: ${{ !startsWith(github.event.head_commit.message, 'docs:') }}
+    if: ${{ !startsWith(github.event.head_commit.message, '[skip ci]') }}
 
     steps:
       - name: Checkout
diff --git a/build.gradle.kts b/build.gradle.kts
index d000041..9703e1f 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -62,6 +62,8 @@ fun Project.configureBaseExtension() {
             versionName = appVerName
             if (localProperties.getProperty("buildWithGitSuffix").toBoolean())
                 versionNameSuffix = ".r${gitCommitCount}.${gitCommitHash}"
+
+            consumerProguardFiles("proguard-rules.pro")
         }
 
         val signingCfg = signingConfigs.create("config") {
diff --git a/common/proguard-rules.pro b/common/proguard-rules.pro
index 54b7608..ef72633 100644
--- a/common/proguard-rules.pro
+++ b/common/proguard-rules.pro
@@ -1,2 +1,29 @@
+# Keep `Companion` object fields of serializable classes.
+# This avoids serializer lookup through `getDeclaredClasses` as done for named companion objects.
+-if @kotlinx.serialization.Serializable class **
+-keepclassmembers class <1> {
+    static <1>$Companion Companion;
+}
+
+# Keep `serializer()` on companion objects (both default and named) of serializable classes.
+-if @kotlinx.serialization.Serializable class ** {
+    static **$* *;
+}
+-keepclassmembers class <2>$<3> {
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+# Keep `INSTANCE.serializer()` of serializable objects.
+-if @kotlinx.serialization.Serializable class ** {
+    public static ** INSTANCE;
+}
+-keepclassmembers class <1> {
+    public static <1> INSTANCE;
+    kotlinx.serialization.KSerializer serializer(...);
+}
+
+# @Serializable and @Polymorphic are used at runtime for polymorphic serialization.
+-keepattributes RuntimeVisibleAnnotations,AnnotationDefault
+
 -keep class icu.nullptr.hidemyapplist.common.JsonConfig { *; }
 -keep class icu.nullptr.hidemyapplist.common.JsonConfig$* { *; }
diff --git a/xposed/proguard-rules.pro b/xposed/proguard-rules.pro
index 1ddb109..539cdff 100644
--- a/xposed/proguard-rules.pro
+++ b/xposed/proguard-rules.pro
@@ -1 +1 @@
--keep class icu.nullptr.hidemyapplist.xposed.XposedEntry
+-keep class icu.nullptr.hidemyapplist.xposed.XposedEntry { *; }