#!/bin/bash
# Copyright 2022 The Bazel Authors. All rights reserved.
#
# 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.

set -e
set -x

source "${KOKORO_GFILE_DIR}/download_bazel.sh"
echo "== installing bazel ========================================="
bazel_install_dir=$(mktemp -d)
BAZEL_VERSION="latest-with-prereleases"
DownloadBazel "$BAZEL_VERSION" linux x86_64 "$bazel_install_dir"
bazel="$bazel_install_dir/install/bin/bazel"
chmod +x "$bazel"
bazel_detected_version=$("$bazel" version | grep "Build label" | awk -F": " '{print $2}')
echo "============================================================="

function Cleanup() {
  # Clean up all temporary directories: bazel install, sandbox, and
  # android_tools.
  rm -rf "$bazel_install_dir"
}
trap Cleanup EXIT

# Kokoro is no longer updating toolchains in their images, so install newer
# android build tools, because the latest one installed (26.0.2) has some bug
# in APPT2 which causes the magic number to be incorrect for some files it
# outputs.
#
# Use "yes" to accept sdk licenses.
cd "$ANDROID_HOME"
yes | tools/bin/sdkmanager --install "build-tools;30.0.3" &>/dev/null
yes | tools/bin/sdkmanager --licenses &>/dev/null

# ANDROID_HOME is already in the environment.
export ANDROID_NDK_HOME="/opt/android-ndk-r16b"

# Create a tmpfs in the sandbox at "/tmp/hsperfdata_$USERNAME" to avoid the
# problems described in https://github.com/bazelbuild/bazel/issues/3236
# Basically, the JVM creates a file at /tmp/hsperfdata_$USERNAME/$PID, but
# processes all get a PID of 2 in the sandbox, so concurrent Java build actions
# could crash because they're trying to modify the same file. So, tell the
# sandbox to mount a tmpfs at /tmp/hsperfdata_$(whoami) so that each JVM gets
# its own version of that directory.
hsperfdata_dir="/tmp/hsperfdata_$(whoami)_rules_android"
mkdir "$hsperfdata_dir"

COMMON_ARGS=(
  "--sandbox_tmpfs_path=$hsperfdata_dir"
  "--verbose_failures"
  "--experimental_google_legacy_api"
  "--experimental_enable_android_migration_apis"
)

# Go to rules_android workspace and run relevant tests.
cd "${KOKORO_ARTIFACTS_DIR}/git/rules_android"
"$bazel" test "${COMMON_ARGS[@]}" //src/common/golang/... \
  //src/tools/ak/{bucketize,compile,dex,extractaar,finalrjar,generatemanifest,link,liteparse,manifest,mindex,nativelib,res,rjar}/...

# Go to basic app workspace in the source tree
cd "${KOKORO_ARTIFACTS_DIR}/git/rules_android/examples/basicapp"
"$bazel" build "${COMMON_ARGS[@]}" //java/com/basicapp:basic_app