| # Copyright 2019 The TensorFlow 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. | |
| # ============================================================================== | |
| # Script to download a binary directly onto a build machine, with | |
| # checksum verification. | |
| set -e | |
| die() { | |
| printf >&2 "%s\n" "$1" | |
| exit 1 | |
| } | |
| if [ "$#" -lt 3 ]; then | |
| die "Usage: $0 <sha256sum> <destination-file> <url> [<url>...]" | |
| fi | |
| checksum="$1" | |
| dest="$2" | |
| shift 2 | |
| temp_dest="$(mktemp)" | |
| for url; do | |
| wget -t 3 -O "${temp_dest}" "${url}" \ | |
| && printf "%s %s\n" "${checksum}" "${temp_dest}" | shasum -a 256 --check \ | |
| || { rm -f "${temp_dest}"; continue; } | |
| mv "${temp_dest}" "${dest}" | |
| break | |
| done | |
| [ -f "${dest}" ] | |
| chmod +x "${dest}" | |
| ls -l "${dest}" | |