commit 4d68f101bb536a80611db1eee8e88b3466a1c841
author Richard Hansen <rhansen@rhansen.org> Mon May 04 20:46:09 2020 -0400
committer Nick Reuter <nreuter85@gmail.com> Wed Dec 07 18:55:06 2022 -0600
tree 58eeb8583c9bf2bea1caba7833db02c8fc114e50
parent 8234dc290d2551de5a906d2270b8f044e6f927d0

recovery: Remove the "Format system partition" menu on A/B devices

Addresses https://gitlab.com/LineageOS/issues/android/-/issues/1893

Change-Id: I05351055ff0d67d67e5cbe295492e7ed553c2c53

recovery_main.cpp

diff --git a/recovery_main.cpp b/recovery_main.cpp
index 9215ddf..8ae0ba2 100644
--- a/recovery_main.cpp
+++ b/recovery_main.cpp
@@ -470,6 +470,13 @@
     device->RemoveMenuItemForAction(Device::WIPE_CACHE);
   }
 
+  if (android::base::GetBoolProperty("ro.build.ab_update", false)) {
+    // There's not much point in formatting the active slot's system partition
+    // because ROMs are flashed to the inactive slot. Removing the menu option
+    // prevents users from accidentally trashing a functioning ROM.
+    device->RemoveMenuItemForAction(Device::WIPE_SYSTEM);
+  }
+
   if (!android::base::GetBoolProperty("ro.boot.dynamic_partitions", false) &&
       !android::base::GetBoolProperty("ro.fastbootd.available", false)) {
     device->RemoveMenuItemForAction(Device::ENTER_FASTBOOT);