81 lines
2.9 KiB
Bash
Executable File
81 lines
2.9 KiB
Bash
Executable File
#!/bin/bash
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# Copyright 2019 The gRPC Authors
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# Keeping up with Bazel's breaking changes is currently difficult.
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# This script wraps calling bazel by downloading the currently
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# supported version, and then calling it. This way, we can make sure
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# that running bazel will always get meaningful results, at least
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# until Bazel 1.0 is released.
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# NOTE: This script relies on bazel's feature where //tools/bazel
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# script can be used to hijack "bazel" invocations in given workspace.
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set -e
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# DISABLE_BAZEL_WRAPPER can be set to eliminate the wrapper logic
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if [ "${DISABLE_BAZEL_WRAPPER}" != "" ]
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then
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if [ "${BAZEL_REAL}" != "" ]
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then
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# use BAZEL_REAL as set by
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# https://github.com/bazelbuild/bazel/blob/master/scripts/packages/bazel.sh
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# that originally invoked this script (this is what happens when you
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# run "bazel" in our workspace)
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exec -a "$0" "${BAZEL_REAL}" "$@"
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else
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# if BAZEL_REAL is not set, just invoke the default system bazel
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exec bazel "$@"
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fi
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fi
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# IMPORTANT: if you update the version here, other parts of infrastructure might needs updating as well
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# (e.g. win RBE builds, sanity checks, bazel toolchains etc.)
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VERSION=3.7.1
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echo "INFO: Running bazel wrapper (see //tools/bazel for details), bazel version $VERSION will be used instead of system-wide bazel installation." >&2
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# update tools/update_mirror.sh to populate the mirror with new bazel archives
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BASEURL_MIRROR="https://storage.googleapis.com/grpc-bazel-mirror/github.com/bazelbuild/bazel/releases/download"
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BASEURL="https://github.com/bazelbuild/bazel/releases/download"
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pushd "$(dirname "$0")" >/dev/null
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TOOLDIR=$(pwd)
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case $(uname -sm) in
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"Linux x86_64")
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suffix=linux-x86_64
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;;
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"Linux aarch64")
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suffix=linux-arm64
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;;
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"Darwin x86_64")
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suffix=darwin-x86_64
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;;
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*)
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echo "Unsupported architecture: $(uname -sm)" >&2
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exit 1
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;;
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esac
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filename="bazel-$VERSION-$suffix"
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if [ ! -x "$filename" ] ; then
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# first try to download using mirror, fallback to download from github
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echo "Downloading bazel, will try URLs: ${BASEURL_MIRROR}/${VERSION}/${filename} ${BASEURL}/${VERSION}/${filename}" >&2
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curl --fail -L --output "${filename}" "${BASEURL_MIRROR}/${VERSION}/${filename}" || curl --fail -L --output "${filename}" "${BASEURL}/${VERSION}/${filename}"
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chmod a+x "$filename"
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fi
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popd >/dev/null
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exec "$TOOLDIR/$filename" "$@"
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