mirror of https://github.com/k3s-io/k3s
43 lines
1.3 KiB
Bash
Executable File
43 lines
1.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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# Copyright 2015 The Kubernetes Authors All rights reserved.
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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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# Wait for a file to exist in the filesystem.
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# Block up to the timeout duration in seconds (default: 10).
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# Usage: await-file [-t=<duration>] <address>
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# Requires: timeout, file
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set -o errexit
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set -o nounset
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set -o pipefail
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duration=10
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if [[ "${1:-}" == "-t="* ]]; then
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duration="${1:3}"
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[ -z "${duration}" ] && echo "Invalid duration supplied" && exit 1
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shift
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fi
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file="$1"
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[ -z "$file" ] && echo "No file supplied" && exit 1
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echo "Waiting (up to ${duration}s) for ${file} to exist"
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if ! timeout "${duration}" bash -c "while [ ! -f \"${file}\" ]; do sleep 0.5; done"; then
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echo "Timed out"
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exit 1
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fi
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echo "File ${file} exists now!"
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