cri-o/vendor/k8s.io/kubernetes/third_party/intemp/intemp.sh

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#!/usr/bin/env bash
# Runs the supplied bash command string in a temporary workspace directory.
# Usage: intemp.sh [-t prefix] <command>
# Requires: mktemp
set -o errexit
set -o nounset
set -o pipefail
opt_flag=${1:-}
[ -z "${opt_flag}" ] && echo "No command supplied" >&2 && exit 1
if [ "${opt_flag}" == "-t" ]; then
shift
prefix=${1:-}
[ -z "${prefix}" ] && echo "No prefix supplied" >&2 && exit 1
shift
else
prefix='temp'
fi
cmd="$1"
[ -z "${cmd}" ] && echo "No command supplied" >&2 && exit 1
workspace=$(mktemp -d "${TMPDIR:-/tmp}/${prefix}.XXXXXX")
echo "Workspace created: ${workspace}" 1>&2
cleanup() {
local -r workspace="$1"
rm -rf "${workspace}"
echo "Workspace deleted: ${workspace}" 1>&2
}
trap "cleanup '${workspace}'" EXIT
pushd "${workspace}" > /dev/null
bash -ceu "${cmd}"
popd > /dev/null
trap - EXIT
cleanup "${workspace}"