Otapreopt: Add init script for A/B artifact move
Move the /data/ota -> /data/dalvik-cache move from the zygote into
a minimal shell script. Add an init rc file to execute the script
once /data is mounted. Add Makefile rules to pull these files in
with the rest of the A/B OTA dexopt components.
The move is motivated by the new naming scheme that includes the
slot name. Passing the slot name to the zygote would complicate
the process, while the value is immediately available in the script
through a simple getprop call.
Bug: 25612095
Bug: 28069686
Change-Id: I63e718d488662e1b1de2ce857629cb90aa4f611d
diff --git a/cmds/installd/otapreopt_slot.sh b/cmds/installd/otapreopt_slot.sh
new file mode 100644
index 0000000..d51ab70
--- /dev/null
+++ b/cmds/installd/otapreopt_slot.sh
@@ -0,0 +1,36 @@
+#!/system/bin/sh
+
+#
+# Copyright (C) 2016 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+# This script will move artifacts for the currently active slot.
+
+SLOT_SUFFIX=$(getprop ro.boot.slot_suffix)
+if test -n "$SLOT_SUFFIX" ; then
+ if test -d /data/ota/$SLOT_SUFFIX/dalvik-cache ; then
+ log -p i -t otapreopt_slot "Moving A/B artifacts for slot ${SLOT_SUFFIX}."
+ rm -rf /data/dalvik-cache/*
+ mv /data/ota/$SLOT_SUFFIX/dalvik-cache/* /data/dalvik-cache/
+ rmdir /data/ota/$SLOT_SUFFIX/dalvik-cache
+ rmdir /data/ota/$SLOT_SUFFIX
+ else
+ log -p i -t otapreopt_slot "No A/B artifacts found for slot ${SLOT_SUFFIX}."
+ fi
+ exit 0
+else
+ log -p w -t otapreopt_slot "Slot property empty."
+ exit 1
+fi