82 lines
1.6 KiB
Bash
Executable File
82 lines
1.6 KiB
Bash
Executable File
#!/bin/bash
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# saner programming env: these switches turn some bugs into errors
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set -o errexit -o pipefail -o noclobber -o nounset
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source="-"
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dest="-"
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verbose=true
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help=false
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GetOptions() {
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# https://stackoverflow.com/a/29754866
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! getopt --test > /dev/null
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if [[ ${PIPESTATUS[0]} -ne 4 ]]; then
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VerboseOutput "Fatal" "\`getopt --test\` failed"
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echo "Sorry, It seems that your shell is not supported"
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echo "If you're using mac or another unix-like system, please install GNU getopt"
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exit 1
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fi
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OPTIONS=s:d:vh
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LONGOPTS=source:,dest:,verbose,help
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# -use ! and PIPESTATUS to get exit code with errexit set
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# -temporarily store output to be able to check for errors
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# -activate quoting/enhanced mode (e.g. by writing out “--options”)
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# -pass arguments only via -- "$@" to separate them correctly
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! PARSED=$(getopt --options=$OPTIONS --longoptions=$LONGOPTS --name "$0" -- "$@")
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if [[ ${PIPESTATUS[0]} -ne 0 ]]; then
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# e.g. return value is 1
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# then getopt has complained about wrong arguments to stdout
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help=true
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Usage
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exit 2
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fi
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# read getopt’s output this way to handle the quoting right:
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eval set -- "$PARSED"
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verbose=false
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# now enjoy the options in order and nicely split until we see --
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while true; do
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case "$1" in
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-v|--verbose)
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verbose=true
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shift
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;;
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-h|--help)
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help=true
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echo "test"
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shift
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;;
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-s|--source)
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source="$2"
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shift 2
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;;
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-d|--dest)
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dest="$2"
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shift 2
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;;
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--)
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shift
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break
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;;
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*)
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echo "Programming error"
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return 3
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;;
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esac
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done
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}
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VerboseOutput() {
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if [[ $verbose ]]; then
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echo "[$1] $2" >&2
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fi
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}
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GetOptions $@
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