.dots/scripts/scan/batch-scan.sh

#!/usr/bin/env bash

# author:	Daniel Sommer <daniel.sommer@velvettear.de>
# license:	MIT

trap 'printf "\n>> batch scan aborted after $SECONDS seconds!\n" && exit 0' SIGINT 

directory="$1"
tmp="$(mktemp -d)"
[[ -z "$directory" ]] && directory="$tmp"

mkdir -p "$directory"
[[ ! -d "$directory" ]] && printf "error: directory '"$directory"' does not exist and can not be created!\n" >&2 && exit 1

printf ">> batch scan started...\n"

postprocess() {
	ocr="$(/home/velvettear/.dots/scripts/ocr.sh "$file")"
	printf "> #"$3": ocr for file '"$file"' finished!\n"
	printf "$ocr" > "$file.ocr"
	if [[ "$directory" != "$tmp" ]]; then
		mv "$file" "$directory"
		mv "$file.ocr" "$directory"
	fi
}

counter=1
while true; do
	sleep 1
	file="$tmp/$(date '+%Y-%m-%d_%H%M%S.png')"
	scanimage --format="png" --output-file "$file" --resolution "300" --mode "Color" 2> /dev/null
	if [[ "$?" != "0" ]]; then
		rm -rf "$file" 2> /dev/null
		continue
	fi
	printf "> #"$counter": scanning to '"$file"' finished!\n"
	#postprocess "$file" "$directory" "$counter"
	((counter++))
done