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#!/bin/bash
# Copyright 2015 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.
# Use bazel to bootstrap various tools
# Configuration:
# BAZEL: path to the bazel binary
# EMBED_LABEL: the label to embed in tools using --embed_label (optional)
# BAZELRC: the rc file to use
: ${BAZELRC:="/dev/null"}
: ${EMBED_LABEL:=""}
: ${SOURCE_DATE_EPOCH:=""}
EMBED_LABEL_ARG=()
if [ -n "${EMBED_LABEL}" ]; then
EMBED_LABEL_ARG=(--stamp --embed_label "${EMBED_LABEL}")
if [ -n "${SOURCE_DATE_EPOCH}" ]; then
EMBED_LABEL_ARG+=(--experimental_embed_timestamp_epoch "${SOURCE_DATE_EPOCH}")
fi
fi
: ${JAVA_VERSION:="1.8"}
if [ "${JAVA_VERSION}" = "1.7" ]; then
_BAZEL_ARGS="--java_toolchain=//src/java_tools/buildjar:bootstrap_toolchain_jdk7 \
--host_java_toolchain=//src/java_tools/buildjar:bootstrap_toolchain_jdk7 \
--spawn_strategy=standalone \
--nojava_header_compilation \
--define JAVA_VERSION=1.7 --ignore_unsupported_sandboxing \
--compilation_mode=opt \
${EXTRA_BAZEL_ARGS:-}"
else
_BAZEL_ARGS="--java_toolchain=//src/java_tools/buildjar:bootstrap_toolchain \
--host_java_toolchain=//src/java_tools/buildjar:bootstrap_toolchain \
--spawn_strategy=standalone \
--nojava_header_compilation \
--strategy=Javac=worker --worker_quit_after_build --ignore_unsupported_sandboxing \
--compilation_mode=opt \
${EXTRA_BAZEL_ARGS:-}"
fi
if [ -z "${BAZEL-}" ]; then
function _run_bootstrapping_bazel() {
local command=$1
shift
run_bazel_jar $command \
${_BAZEL_ARGS} --verbose_failures \
"--javabase=${JAVA_HOME}" "--host_javabase=${JAVA_HOME}" \
--javacopt="-g -source ${JAVA_VERSION} -target ${JAVA_VERSION}" "${@}"
}
else
function _run_bootstrapping_bazel() {
local command=$1
shift
${BAZEL} --bazelrc=${BAZELRC} ${BAZEL_DIR_STARTUP_OPTIONS} $command \
${_BAZEL_ARGS} --verbose_failures \
"--javabase=${JAVA_HOME}" "--host_javabase=${JAVA_HOME}" \
--javacopt="-g -source ${JAVA_VERSION} -target ${JAVA_VERSION}" "${@}"
}
fi
function bazel_build() {
_run_bootstrapping_bazel build "${EMBED_LABEL_ARG[@]}" "$@"
}
function get_bazel_bin_path() {
_run_bootstrapping_bazel info "bazel-bin" || echo "bazel-bin"
}
function md5_outputs() {
[ -n "${BAZEL_TEST_XTRACE:-}" ] && set +x # Avoid garbage in the output
# runfiles/MANIFEST & runfiles_manifest contain absolute path, ignore.
# ar on OS-X is non-deterministic, ignore .a files.
for i in $(find bazel-bin/ -type f -a \! -name MANIFEST -a \! -name '*.runfiles_manifest' -a \! -name '*.a'); do
md5_file $i
done
for i in $(find bazel-genfiles/ -type f); do
md5_file $i
done
[ -n "${BAZEL_TEST_XTRACE:-}" ] && set -x
}
function get_outputs_sum() {
md5_outputs | sort -k 2
}
function bootstrap_test() {
local BAZEL_BIN=$1
local BAZEL_SUM=$2
local BAZEL_TARGET=${3:-src:bazel}
local STRATEGY="--strategy=Javac=worker --worker_quit_after_build"
if [ "${JAVA_VERSION}" = "1.7" ]; then
STRATEGY=
fi
[ -x "${BAZEL_BIN}" ] || fail "syntax: bootstrap bazel-binary"
run ${BAZEL_BIN} --nomaster_bazelrc --bazelrc=${BAZELRC} \
${BAZEL_DIR_STARTUP_OPTIONS} \
clean \
--expunge || return $?
run ${BAZEL_BIN} --nomaster_bazelrc --bazelrc=${BAZELRC} \
${BAZEL_DIR_STARTUP_OPTIONS} \
build \
${EXTRA_BAZEL_ARGS-} ${STRATEGY} \
--fetch --nostamp \
--define "JAVA_VERSION=${JAVA_VERSION}" \
--javacopt="-g -source ${JAVA_VERSION} -target ${JAVA_VERSION}" \
${BAZEL_TARGET} || return $?
if [ -n "${BAZEL_SUM}" ]; then
cat bazel-genfiles/src/java.version >${BAZEL_SUM}
get_outputs_sum >> ${BAZEL_SUM} || return $?
fi
if [ -z "${BOOTSTRAP:-}" ]; then
tempdir
BOOTSTRAP=${NEW_TMPDIR}/bazel
local FILE=bazel-bin/${BAZEL_TARGET##//}
cp -f ${FILE/:/\/} $BOOTSTRAP
chmod +x $BOOTSTRAP
fi
}
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