| #!/bin/bash |
| |
| # Copyright 2014 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. |
| |
| # This script bootstraps building a Bazel binary without Bazel then |
| # use this compiled Bazel to bootstrap Bazel itself. It can also |
| # be provided with a previous version of Bazel to bootstrap Bazel |
| # itself. |
| # The resulting binary can be found at output/bazel. |
| |
| set -o errexit |
| |
| cd "$(dirname "$0")" |
| |
| # Set the default verbose mode in buildenv.sh so that we do not display command |
| # output unless there is a failure. We do this conditionally to offer the user |
| # a chance of overriding this in case they want to do so. |
| : ${VERBOSE:=no} |
| |
| source scripts/bootstrap/buildenv.sh |
| |
| mkdir -p output |
| : ${BAZEL:=} |
| |
| # |
| # Create an initial binary so we can host ourself |
| # |
| if [ ! -x "${BAZEL}" ]; then |
| new_step 'Building Bazel from scratch' |
| source scripts/bootstrap/compile.sh |
| fi |
| |
| # |
| # Bootstrap bazel using the previous bazel binary = release binary |
| # |
| if [ "${EMBED_LABEL-x}" = "x" ]; then |
| # Add a default label when unspecified |
| git_sha1=$(git_sha1) |
| EMBED_LABEL="$(get_last_version) (@${git_sha1:-non-git})" |
| fi |
| |
| if [[ $PLATFORM == "darwin" ]] && \ |
| xcodebuild -showsdks 2> /dev/null | grep -q '\-sdk iphonesimulator'; then |
| EXTRA_BAZEL_ARGS="${EXTRA_BAZEL_ARGS-} --define IPHONE_SDK=1" |
| fi |
| |
| if [[ $PLATFORM == "windows" ]]; then |
| EXTRA_BAZEL_ARGS="${EXTRA_BAZEL_ARGS-} --cxxopt=/std:c++17 --host_cxxopt=/std:c++17" |
| fi |
| |
| source scripts/bootstrap/bootstrap.sh |
| |
| new_step 'Building Bazel with Bazel' |
| display "." |
| log "Building output/bazel" |
| # We set host and target platform directly because we are building for the local |
| # host. |
| bazel_build "src:bazel_nojdk${EXE_EXT}" \ |
| --action_env=PATH \ |
| --host_platform=@platforms//host \ |
| --platforms=@platforms//host \ |
| || fail "Could not build Bazel" |
| bazel_bin_path="$(get_bazel_bin_path)/src/bazel_nojdk${EXE_EXT}" |
| [ -e "$bazel_bin_path" ] \ |
| || fail "Could not find freshly built Bazel binary at '$bazel_bin_path'" |
| cp -f "$bazel_bin_path" "output/bazel${EXE_EXT}" \ |
| || fail "Could not copy '$bazel_bin_path' to 'output/bazel${EXE_EXT}'" |
| chmod 0755 "output/bazel${EXE_EXT}" |
| BAZEL="$(pwd)/output/bazel${EXE_EXT}" |
| |
| clear_log |
| display "Build successful! Binary is here: ${BAZEL}" |