commit 8b72628b1c2b23c836bbcb1a7f6748c2a2049a65
author Alessandro Astone <ales.astone@gmail.com> Tue Mar 17 23:06:52 2020 +0100
committer Luca Stefani <luca.stefani.ge1@gmail.com> Tue Mar 31 21:56:06 2020 +0200
tree bb4a2fdc711ae25c001760aaf0f7a9dcc7adedda
parent 0037a5e6bfabaa5a9aa3eecc75794dcc480203c1

recovery: allow A/B updater to downgrade

Change-Id: Iaa1fb7838fb958e69fb3104fef7743aafad12b1b

install/adb_install.cpp

diff --git a/install/adb_install.cpp b/install/adb_install.cpp
index fd1ca1a..d82238e 100644
--- a/install/adb_install.cpp
+++ b/install/adb_install.cpp
@@ -114,11 +114,17 @@
     }
     ui->CancelWaitKey();
 
-    *result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, false, false, 0, true /* verify */, ui);
+    *result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, false, false, 0, true /* verify */,
+                              false /* allow_ab_downgrade */, ui);
     if (*result == INSTALL_UNVERIFIED &&
         ui->IsTextVisible() && ask_to_continue_unverified(device)) {
-      *result =
-          install_package(FUSE_SIDELOAD_HOST_PATHNAME, false, false, 0, false /* verify */, ui);
+      *result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, false, false, 0, false /* verify */,
+                                false /* allow_ab_downgrade */, ui);
+    }
+    if (*result == INSTALL_DOWNGRADE &&
+      ui->IsTextVisible() && ask_to_continue_downgrade(device)) {
+      *result = install_package(FUSE_SIDELOAD_HOST_PATHNAME, false, false, 0, false /* verify */,
+                                true /* allow_ab_downgrade */, ui);
     }
     break;
   }