Add scripts to mount/unmount the Runtime APEX under ART's chroot dir.
These scripts (`tools/mount-buildbot-apexes.sh` and
`tools/unmount-buildbot-apexes.sh`) emulate the role of `apexd` under
the chroot directory for chroot-based on-device testing.
They currently only handle the Runtime APEX (com.android.runtime), but
we plan to use them to also activate/deactivate other packages
(required by ART's standalone test setup) in the future.
Also:
- Provide an `/apex' tmpfs under the choot directory as part of the
device set-up.
- Build and push `unzip` during (chroot-based) on-device testing, as
it is needed to extract payload (ext4 images) from APEX(ex).
Test: Manual local testing.
Bug: 121117762
Bug: 113373927
Bug: 34729697
Change-Id: Id1a7b3378ea5822c511d6cc74f784fa38ddd4968
diff --git a/tools/unmount-buildbot-apexes.sh b/tools/unmount-buildbot-apexes.sh
new file mode 100755
index 0000000..8f0ad5f
--- /dev/null
+++ b/tools/unmount-buildbot-apexes.sh
@@ -0,0 +1,64 @@
+#!/bin/bash
+#
+# Copyright (C) 2019 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.
+
+# Unmount Android Runtime and Core Libraries APEX packages required in the chroot directory.
+# This script emulates some the actions performed by `apexd`.
+
+# This script undoes the work done by tools/mount-buildbot-apexes.sh.
+# Make sure to keep these files in sync.
+
+green='\033[0;32m'
+nc='\033[0m'
+
+# Setup as root, as some actions performed here require it.
+adb root
+adb wait-for-device
+
+# Exit early if there is no chroot.
+[[ -n "$ART_TEST_CHROOT" ]] || exit
+
+# Check that ART_TEST_CHROOT is correctly defined.
+[[ "$ART_TEST_CHROOT" = /* ]] || { echo "$ART_TEST_CHROOT is not an absolute path"; exit 1; }
+
+# Directory containing extracted APEX packages' payloads (ext4 images) under
+# the chroot directory.
+apex_image_dir="/tmp/apex"
+
+# deactivate_system_package APEX_NAME
+# -----------------------------------
+# Unmount APEX_NAME in `/apex` under the chroot directory and delete the
+# corresponding APEX package payload (ext4 image).
+deactivate_system_package() {
+ local apex_name=$1
+ local abs_image_filename="$ART_TEST_CHROOT$apex_image_dir/$apex_name.img"
+ local abs_mount_point="$ART_TEST_CHROOT/apex/$apex_name"
+
+ echo -e "${green}Deactivating package $apex_name${nc}"
+
+ # Unmount the package's payload (ext4 image).
+ if adb shell mount | grep -q "^/dev/block/loop[0-9]\+ on $abs_mount_point type ext4"; then
+ adb shell umount "$abs_mount_point"
+ adb shell rmdir "$abs_mount_point"
+ # Delete the ext4 image.
+ adb shell rm "$abs_image_filename"
+ fi
+}
+
+# Deactivate the Android Runtime APEX.
+deactivate_system_package com.android.runtime
+
+# Delete the image's directory.
+adb shell rmdir "$ART_TEST_CHROOT$apex_image_dir"