49 lines
1.5 KiB
Bash
49 lines
1.5 KiB
Bash
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#!/usr/bin/env bash
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# Copyright 2019 Google LLC
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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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set -eu
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# Make three attempts to install the dependencies. It is rare, but from time to
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# time the downloading the packages, building the Docker images, or an installer
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# Bazel, or the Google Cloud SDK fails. To make the CI build more robust, try
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# again when that happens.
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if (( $# < 1 )); then
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echo "Usage: $(basename "$0") program [arguments]"
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exit 1
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fi
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readonly PROGRAM=${1}
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shift
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# Initially, wait at least 2 minutes (the times are in seconds), because it
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# makes no sense to try faster. This used to be 180 seconds, but that ends with
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# sleeps close to 10 minutes, and Travis aborts builds that do not output in
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# 10m.
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min_wait=120
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# Do not exit on failures for this loop.
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set +e
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for i in 1 2 3; do
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if "${PROGRAM}" "$@"; then
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exit 0
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fi
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# Sleep for a few minutes before trying again.
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period=$(( (RANDOM % 60) + min_wait ))
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echo "${PROGRAM} failed (attempt ${i}); trying again in ${period} seconds."
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sleep ${period}s
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min_wait=$(( min_wait * 2 ))
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done
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exit 1
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