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January 13, 2023 18:02
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ensure script is only run once at a time
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| # when sourced from another script, causes that script to be run at most once concurrently | |
| if [[ $BASH_VERSION ]]; then | |
| script=$(realpath ${BASH_SOURCE[1]}) | |
| else | |
| script=$(realpath ${funcfiletrace[1]%:*}) | |
| fi | |
| [[ $FLOCKER ]] || exec env FLOCKER="$script" flock -en "$script" "$script" "$@" |
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