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build_setup.sh
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build_setup.sh
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#!/bin/bash
# Configure environment variables for Bazel build and test.
set -e
export PPROF_PATH=/thirdparty_build/bin/pprof
[ -z "${NUM_CPUS}" ] && NUM_CPUS=`grep -c ^processor /proc/cpuinfo`
[ -z "${ENVOY_SRCDIR}" ] && export ENVOY_SRCDIR=/source
echo "ENVOY_SRCDIR=${ENVOY_SRCDIR}"
function setup_gcc_toolchain() {
export CC=gcc
export CXX=g++
echo "$CC/$CXX toolchain configured"
}
function setup_clang_toolchain() {
export PATH=/usr/lib/llvm-7/bin:$PATH
export CC=clang
export CXX=clang++
export ASAN_SYMBOLIZER_PATH=/usr/lib/llvm-7/bin/llvm-symbolizer
echo "$CC/$CXX toolchain configured"
}
# Create a fake home. Python site libs tries to do getpwuid(3) if we don't and the CI
# Docker image gets confused as it has no passwd entry when running non-root
# unless we do this.
FAKE_HOME=/tmp/fake_home
mkdir -p "${FAKE_HOME}"
export HOME="${FAKE_HOME}"
export PYTHONUSERBASE="${FAKE_HOME}"
export BUILD_DIR=/build
if [[ ! -d "${BUILD_DIR}" ]]
then
echo "${BUILD_DIR} mount missing - did you forget -v <something>:${BUILD_DIR}? Creating."
mkdir -p "${BUILD_DIR}"
fi
export ENVOY_FILTER_EXAMPLE_SRCDIR="${BUILD_DIR}/envoy-filter-example"
# Make sure that /source doesn't contain /build on the underlying host
# filesystem, including via hard links or symlinks. We can get into weird
# loops with Bazel symlinking and gcovr's path traversal if this is true, so
# best to keep /source and /build in distinct directories on the host
# filesystem.
SENTINEL="${BUILD_DIR}"/bazel.sentinel
touch "${SENTINEL}"
if [[ -n "$(find -L "${ENVOY_SRCDIR}" -name "$(basename "${SENTINEL}")")" ]]
then
rm -f "${SENTINEL}"
echo "/source mount must not contain /build mount"
exit 1
fi
rm -f "${SENTINEL}"
# Environment setup.
export USER=bazel
export TEST_TMPDIR=/build/tmp
export BAZEL="bazel"
# Not sandboxing, since non-privileged Docker can't do nested namespaces.
BAZEL_OPTIONS="--package_path %workspace%:${ENVOY_SRCDIR}"
export BAZEL_QUERY_OPTIONS="${BAZEL_OPTIONS}"
export BAZEL_BUILD_OPTIONS="--strategy=Genrule=standalone --spawn_strategy=standalone \
--verbose_failures ${BAZEL_OPTIONS} --action_env=HOME --action_env=PYTHONUSERBASE \
--jobs=${NUM_CPUS} --show_task_finish ${BAZEL_BUILD_EXTRA_OPTIONS}"
export BAZEL_TEST_OPTIONS="${BAZEL_BUILD_OPTIONS} --test_env=HOME --test_env=PYTHONUSERBASE \
--test_env=UBSAN_OPTIONS=print_stacktrace=1 \
--cache_test_results=no --test_output=all ${BAZEL_EXTRA_TEST_OPTIONS}"
[[ "${BAZEL_EXPUNGE}" == "1" ]] && "${BAZEL}" clean --expunge
ln -sf /thirdparty "${ENVOY_SRCDIR}"/ci/prebuilt
ln -sf /thirdparty_build "${ENVOY_SRCDIR}"/ci/prebuilt
# Replace the existing Bazel output cache with a copy of the image's prebuilt deps.
if [[ -d /bazel-prebuilt-output && ! -d "${TEST_TMPDIR}/_bazel_${USER}" ]]; then
BAZEL_OUTPUT_BASE="$(bazel info output_base)"
mkdir -p "${TEST_TMPDIR}/_bazel_${USER}/install"
rsync -a /bazel-prebuilt-root/install/* "${TEST_TMPDIR}/_bazel_${USER}/install/"
rsync -a /bazel-prebuilt-output "${BAZEL_OUTPUT_BASE}"
fi
if [ "$1" != "-nofetch" ]; then
# Setup Envoy consuming project.
if [[ ! -a "${ENVOY_FILTER_EXAMPLE_SRCDIR}" ]]
then
git clone https://github.com/envoyproxy/envoy-filter-example.git "${ENVOY_FILTER_EXAMPLE_SRCDIR}"
fi
# This is the hash on https://github.com/envoyproxy/envoy-filter-example.git we pin to.
(cd "${ENVOY_FILTER_EXAMPLE_SRCDIR}" && git fetch origin && git checkout -f 6c0625cb4cc9a21df97cef2a1d065463f2ae81ae)
cp -f "${ENVOY_SRCDIR}"/ci/WORKSPACE.filter.example "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/WORKSPACE
fi
# Also setup some space for building Envoy standalone.
export ENVOY_BUILD_DIR="${BUILD_DIR}"/envoy
mkdir -p "${ENVOY_BUILD_DIR}"
cp -f "${ENVOY_SRCDIR}"/ci/WORKSPACE "${ENVOY_BUILD_DIR}"
# This is where we copy build deliverables to.
export ENVOY_DELIVERY_DIR="${ENVOY_BUILD_DIR}"/source/exe
mkdir -p "${ENVOY_DELIVERY_DIR}"
# This is where we copy the coverage report to.
export ENVOY_COVERAGE_DIR="${ENVOY_BUILD_DIR}"/generated/coverage
mkdir -p "${ENVOY_COVERAGE_DIR}"
# This is where we dump failed test logs for CI collection.
export ENVOY_FAILED_TEST_LOGS="${ENVOY_BUILD_DIR}"/generated/failed-testlogs
mkdir -p "${ENVOY_FAILED_TEST_LOGS}"
# This is where we build for bazel.release* and bazel.dev.
export ENVOY_CI_DIR="${ENVOY_SRCDIR}"/ci
function cleanup() {
# Remove build artifacts. This doesn't mess with incremental builds as these
# are just symlinks.
rm -rf "${ENVOY_SRCDIR}"/bazel-*
rm -rf "${ENVOY_CI_DIR}"/bazel-*
rm -rf "${ENVOY_CI_DIR}"/bazel
rm -rf "${ENVOY_CI_DIR}"/tools
rm -f "${ENVOY_CI_DIR}"/.bazelrc
}
cleanup
trap cleanup EXIT
# Hack due to https://github.com/envoyproxy/envoy/issues/838 and the need to have
# .bazelrc available for build linkstamping.
mkdir -p "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/bazel
mkdir -p "${ENVOY_CI_DIR}"/bazel
ln -sf "${ENVOY_SRCDIR}"/bazel/get_workspace_status "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/bazel/
ln -sf "${ENVOY_SRCDIR}"/bazel/get_workspace_status "${ENVOY_CI_DIR}"/bazel/
cp -f "${ENVOY_SRCDIR}"/.bazelrc "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/
cp -f "${ENVOY_SRCDIR}"/.bazelrc "${ENVOY_CI_DIR}"/
# TODO(PiotrSikora): remove once we deprecate tools/bazel.rc in favor of .bazelrc.
mkdir -p "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/tools
mkdir -p "${ENVOY_CI_DIR}"/tools
ln -sf "${ENVOY_SRCDIR}"/tools/bazel.rc "${ENVOY_FILTER_EXAMPLE_SRCDIR}"/tools/
ln -sf "${ENVOY_SRCDIR}"/tools/bazel.rc "${ENVOY_CI_DIR}"/tools/
export BUILDIFIER_BIN="/usr/local/bin/buildifier"