From afaf6e9ee73b340c4fb2e98ea73b6c8c349a3e9d Mon Sep 17 00:00:00 2001
From: Songchun Fan <schfan@google.com>
Date: Wed, 18 Mar 2020 14:12:20 -0700
Subject: [PATCH] [incremental native lib] skip writing to zero byte files

Test: adb install --incremental /google/data/rw/teams/tradefed/testdata/thirdparty_apps_stable/MX_Player_1.9.17.apk
BUG: 150795871
Change-Id: Idca09929f41424edb527b9b89dea1974c1f8ea46
---
 services/incremental/IncrementalService.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/services/incremental/IncrementalService.cpp b/services/incremental/IncrementalService.cpp
index 2eadece36b3cd..76eb3571b907a 100644
--- a/services/incremental/IncrementalService.cpp
+++ b/services/incremental/IncrementalService.cpp
@@ -1170,6 +1170,10 @@ bool IncrementalService::configureNativeBinaries(StorageId storage, std::string_
             // If one lib file fails to be created, abort others as well
             break;
         }
+        // If it is a zero-byte file, skip data writing
+        if (uncompressedLen == 0) {
+            continue;
+        }
 
         // Write extracted data to new file
         std::vector<uint8_t> libData(uncompressedLen);