67 lines
1.1 KiB
Bash
Executable File
67 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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set -e
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#set -x
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INDIR=
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OUTDIR=
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PRESERVE_OUTPUT=0
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error() {
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>&2 echo "error: $*"
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}
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warning() {
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>&2 echo "warning: $*"
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}
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die() {
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error "$*"
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exit 1
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}
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usage() {
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code="$1"
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[ -z "$code" ] && code=0
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cat <<EOF
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usage: $PROGNAME [OPTIONS]
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Options:
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-o output directory
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-i input directory
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-p preserve output directory (don't clear it)
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-h show this help
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EOF
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exit "$code"
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}
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input_args() {
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[ -z "$1" ] && usage
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while [ $# -gt 0 ]; do
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case $1 in
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-o) OUTDIR="$2"; shift ;;
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-i) INDIR="$2"; shift ;;
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-p) PRESERVE_OUTPUT=1 ;;
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-h) usage ;;
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*) die "unexpected argument: $1" ;;
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esac
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shift
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done
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}
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check_args() {
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[ -z "$OUTDIR" ] && {
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error "output directory not specified"
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usage 1
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}
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[ -z "$INDIR" ] && {
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error "input directory not specified"
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usage 1
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}
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if [ ! -d "$OUTDIR" ]; then
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mkdir "$OUTDIR"
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elif [ "$PRESERVE_OUTPUT" -eq 0 ]; then
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find "$OUTDIR" -mindepth 1 -delete
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fi
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}
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