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#!/bin/bash
# Copyright 2019 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 fetches
# `https://github.com/bazelbuild/<rules_xyz>/archive/<version>.tar.gz`
# and uploads it to the cannonical location on `https://mirror.bazel.build`.
set -euo pipefail
function validate_input {
local n="$1"
local input="$2"
# Valid inputs contain only alphanumeric letters or [_-.]
# and must be between 3 (e.g. numbered releases like 0.1 or 1.0) and 40
# (e.g. git commit hashes) characters long.
if [[ ! "${input}" =~ ^[a-zA-Z0-9_\\-\\.]{3,40}$ ]]; then
echo "Argument ${n} with value '${input}' contains invalid characters," \
"or is not between 3 and 40 characters long"
exit 1
fi
}
if [ "$#" -ne 2 ]; then
echo "Usage: bazel run //tools:upload_bazel_mirror -- <rules_xyz> <version>"
exit 1
fi
REPO="$1"
validate_input 1 "${REPO}"
# TODO(yannic): Add option to get latest commit or release from GitHub API.
VERSION="$2"
validate_input 2 "${VERSION}"
# Create a temp directory to hold the versioned tarball,
# and clean it up when the script exits.
tmpdir="$(mktemp -d)"
function cleanup {
rm -rf "$tmpdir"
}
trap cleanup EXIT
url="https://github.com/bazelbuild/${REPO}/archive/${VERSION}.tar.gz"
versioned_filename="${REPO}-${VERSION}.tar.gz"
versioned_archive="${tmpdir}/${versioned_filename}"
# Download tarball into temporary folder.
# -L to follow redirects.
curl -L --fail --output "${versioned_archive}" "${url}"
# Upload the tarball to GCS.
# -n for no-clobber, so we don't overwrite existing files
gsutil cp -n "${versioned_archive}" \
"gs://bazel-mirror/github.com/bazelbuild/${REPO}/archive/${VERSION}.tar.gz"
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