#!/bin/bash
# Copyright 2016 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.

# Shell script containing the main build phase for all bazel_github_job-s

set -e
set +x

BAZEL=~/.bazel/${BAZEL_VERSION}/bin/bazel

ROOT="${PWD}"

TEST_TAG_FILTERS="{{ variables.TEST_TAG_FILTERS }}"
BUILD_TAG_FILTERS=""
JAVA_VERSION="1.8"
if [[ "${BAZEL_VERSION}" =~ -jdk7$ ]]; then
  JAVA_VERSION="1.7"
  if [ -n "${TEST_TAG_FILTERS}" ]; then
    TEST_TAG_FILTERS="${TEST_TAG_FILTERS},-jdk8"
  else
    TEST_TAG_FILTERS="-jdk8"
  fi
  BUILD_TAG_FILTERS="-jdk8"
fi

cat >${ROOT}/bazel.bazelrc <<EOF
import %workspace%/.bazelrc
build {{ variables.BUILD_OPTS }}
test {{ variables.TEST_OPTS }}
test --test_tag_filters ${TEST_TAG_FILTERS}
test --define JAVA_VERSION=${JAVA_VERSION}
EOF

if [[ ! -z "${BUILD_TAG_FILTERS}" ]];
then
  echo "build --build_tag_filters ${BUILD_TAG_FILTERS}" >> ${ROOT}/bazel.bazelrc
fi

if [[ "${PLATFORM_NAME}" =~ .*darwin.* ]]; then
  cat >>${ROOT}/bazel.bazelrc <<EOF
test --local_test_jobs=3
EOF
fi

if [[ "${PLATFORM_NAME}" =~ .*darwin.* ]] && \
      xcodebuild -showsdks 2> /dev/null | grep -q '\-sdk iphonesimulator'; then
  cat >>${ROOT}/bazel.bazelrc <<EOF
build --define IPHONE_SDK=1
EOF
fi

rm -f .unstable
mkdir -p .bin
cat <<EOF >.bin/bazel
#!/bin/bash
retCode=0
${BAZEL} --bazelrc=${ROOT}/bazel.bazelrc "\$@" || retCode=\$?
# Bazel returns 3 if there was test failures but no breakge
if [[ "\$retCode" -eq "3" ]]; then
  # Write 1 in the .unstable file so the following step in Jenkins
  # know that it is a test failure.
  echo 1 >"${ROOT}/.unstable"
elif [[ "\$retCode" -ne "0" ]]; then
  # Else simply fails the job by exiting with a non null return code
  exit \$retCode
fi
EOF
chmod +x .bin/bazel
export PATH="${PWD}/.bin:${PATH}"

cd {{ variables.WORKSPACE }}

touch .bazelrc

echo "==== bazel version ===="
bazel version
echo
echo

# Workaround for bazelbuild/bazel#2941
# TODO(dmarting): Remove once 0.5.0 is released
if [ "$JAVA_VERSION" = "1.7" ]; then
  bazel clean
fi

set -x

{{ variables.CONFIGURE }}
TESTS='{{ variables.TESTS }}'
[ -z "${TESTS}" ] || TESTS="$(bazel query "tests(${TESTS})")"
[ -z "{{ variables.BUILDS }}" ] || bazel build {{ variables.BUILDS }}
[ -z "${TESTS}" ] || bazel test ${TESTS}