From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Alex Buynytskyy <alexbuy@google.com>
Date: Thu, 24 Feb 2022 21:40:13 -0800
Subject: [PATCH] Always restart apps if base.apk gets updated.

Bug: 219044664
Fixes: 219044664
Test: atest PackageManagerShellCommandTest
Change-Id: I27a0c5009b2d5f1ea51618b9acfa1e6ccee71296
Merged-In: I27a0c5009b2d5f1ea51618b9acfa1e6ccee71296
(cherry picked from commit a5dd59db6d1889ae0aa95ef01bbf8c98e360a2f2)
Merged-In: I27a0c5009b2d5f1ea51618b9acfa1e6ccee71296
---
 .../android/content/pm/IPackageInstallerSession.aidl |  2 ++
 core/java/android/content/pm/PackageInstaller.java   | 12 ++++++++++++
 .../android/server/pm/PackageInstallerSession.java   | 10 ++++++++++
 3 files changed, 24 insertions(+)

diff --git a/core/java/android/content/pm/IPackageInstallerSession.aidl b/core/java/android/content/pm/IPackageInstallerSession.aidl
index 2a3fac341e24..c612e6afc6e3 100644
--- a/core/java/android/content/pm/IPackageInstallerSession.aidl
+++ b/core/java/android/content/pm/IPackageInstallerSession.aidl
@@ -34,4 +34,6 @@ interface IPackageInstallerSession {
     void close();
     void commit(in IntentSender statusReceiver);
     void abandon();
+
+    int getInstallFlags();
 }
diff --git a/core/java/android/content/pm/PackageInstaller.java b/core/java/android/content/pm/PackageInstaller.java
index ed8143e36f03..3516590338c5 100644
--- a/core/java/android/content/pm/PackageInstaller.java
+++ b/core/java/android/content/pm/PackageInstaller.java
@@ -844,6 +844,18 @@ public class PackageInstaller {
                 throw e.rethrowFromSystemServer();
             }
         }
+
+        /**
+         * @return Session's {@link SessionParams#installFlags}.
+         * @hide
+         */
+        public int getInstallFlags() {
+            try {
+                return mSession.getInstallFlags();
+            } catch (RemoteException e) {
+                throw e.rethrowFromSystemServer();
+            }
+        }
     }
 
     /**
diff --git a/services/core/java/com/android/server/pm/PackageInstallerSession.java b/services/core/java/com/android/server/pm/PackageInstallerSession.java
index 6eb7bcd9893a..d0721071e308 100644
--- a/services/core/java/com/android/server/pm/PackageInstallerSession.java
+++ b/services/core/java/com/android/server/pm/PackageInstallerSession.java
@@ -62,6 +62,7 @@ import android.system.OsConstants;
 import android.system.StructStat;
 import android.text.TextUtils;
 import android.util.ArraySet;
+import android.util.EventLog;
 import android.util.ExceptionUtils;
 import android.util.MathUtils;
 import android.util.Slog;
@@ -808,6 +809,10 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
             if (mResolvedBaseFile == null) {
                 mResolvedBaseFile = new File(appInfo.getBaseCodePath());
                 mResolvedInheritedFiles.add(mResolvedBaseFile);
+            } else if ((params.installFlags & PackageManager.INSTALL_DONT_KILL_APP) != 0) {
+                EventLog.writeEvent(0x534e4554, "219044664");
+                // Installing base.apk. Make sure the app is restarted.
+                params.setDontKillApp(false);
             }
 
             // Inherit splits if not overridden
@@ -1136,6 +1141,11 @@ public class PackageInstallerSession extends IPackageInstallerSession.Stub {
         dispatchSessionFinished(INSTALL_FAILED_ABORTED, "Session was abandoned", null);
     }
 
+    @Override
+    public int getInstallFlags() {
+        return params.installFlags;
+    }
+
     private void dispatchSessionFinished(int returnCode, String msg, Bundle extras) {
         mFinalStatus = returnCode;
         mFinalMessage = msg;