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#!/bin/bash
# Updater script for bazel prebuilt binaries in AOSP.
#
# This script handles both linux and darwin binaries in a single invocation. See
# README.md for more details.
#
# Usage: update.sh <commit>
set -euo pipefail
function err() {
>&2 echo "$@"
exit 1
}
# Check that the necessary tools are installed.
function check_prereqs() {
if ! [[ "${PWD}" =~ .*/prebuilts/bazel/linux-x86_64$ ]]; then
err "Error: Run this script from within the prebuilts/bazel/linux-x86_64 directory."
fi
for cmd in jq curl; do
if ! command -v "${cmd}" &> /dev/null; then
err "Error: This script requires ${cmd}. Install it and ensure it is on your PATH."
fi
done
}
check_prereqs
commit="$1"; shift
ci_url="https://storage.googleapis.com/bazel-builds/metadata/${commit}.json"
platforms_json="$(curl -s "${ci_url}" | jq '{ platforms: .platforms }')"
if [[ $? != 0 ]]; then
err "Failed to download or parse ${ci_url}. Exiting."
fi
darwin_nojdk_url="$(echo "${platforms_json}" | jq --raw-output '.[].macos.nojdk_url')"
darwin_nojdk_sha256="$(echo "${platforms_json}" | jq --raw-output '.[].macos.nojdk_sha256')"
linux_nojdk_url="$(echo "${platforms_json}" | jq --raw-output '.[].linux.nojdk_url')"
linux_nojdk_sha256="$(echo "${platforms_json}" | jq --raw-output '.[].linux.nojdk_sha256')"
function download_and_verify() {
local os=$1; shift
local url=$1; shift
local sha256=$1; shift
echo "Cleaning previous ${os} bazel binary.."
rm -f "bazel_nojdk-*-${os}-x86_64"
echo "Downloading ${os} bazel binary for ${commit}.."
downloaded_file="bazel_nojdk-${commit}-${os}-x86_64"
curl "${url}" --output "${downloaded_file}"
echo "Verifying checksum for ${downloaded_file} to be ${sha256}.."
echo "${sha256} ${downloaded_file}" | sha256sum --check --status
echo "Setting up bazel symlink for ${os}.."
rm -f bazel && ln -s "${downloaded_file}" bazel
chmod +x "${downloaded_file}"
}
# Update Linux binary.
download_and_verify "linux" "${linux_nojdk_url}" "${linux_nojdk_sha256}"
(
# Update macOS binary.
cd "$(dirname "$0")/../darwin-x86_64"
download_and_verify "darwin" "${darwin_nojdk_url}" "${darwin_nojdk_sha256}"
)
echo "Done."