packages/easyscan: complete rewrite

nix/packages/by-name/easyscan/easyscan.sh

@@ -1,63 +1,17 @@
-#
+# This is here because scanimage's batch mode is broken for my scanner
-# Declare variables
-#
-DEVICE="${SANE_DEFAULT_DEVICE:-}"
-OUTPUT_FILE=
 
-while [[ $# -gt 0 ]]; do
+OUTPUT_FILE="${1:-./scan_"$(date)".pdf}"
-	case $1 in
-	-d | --device)
-		# Allows user to override the device used, since scanimage is
-		# slow and the printer might not even change between runs
-		DEVICE="$2"
-		shift
-		shift
-		;;
-	-*)
-		echo "Unknown option $1"
-		exit 1
-		;;
-	*)
-		OUTPUT_FILE="$1"
-		shift
-		;;
-	esac
-done
-
-#
-# Handle defaults
-#
-if [ -z "$OUTPUT_FILE" ]; then
-	OUTPUT_FILE=./scan_"$(date)".pdf
-fi
-
-if [ -z "$DEVICE" ]; then
-	DEVICE=$(scanimage --formatted-device-list="%d (%v %m)" --list-devices |
-		fzf --header "Pick a device:" |
-		cut -d ' ' -f 1)
-fi
 
 tempdir="$(mktemp -d)"
-
+counter=1
-do_scan() {
-	filename="$tempdir/$(date).pdf"
-	while ! scanimage --format=pdf --device="$DEVICE" --resolution 300 >"$filename"; do
-		:
-	done
-	echo "$filename"
-}
-
-do_fix() {
-	read -r filename
-	fixed_name="${filename%.pdf}_fixed.pdf"
-	gs -o "$fixed_name" -sDEVICE=pdfwrite -dPDFSETTINGS=/prepress "$filename"
-	rm "$filename"
-	mv "$fixed_name" "$filename"
-	echo "$filename"
-}
 
 while :; do
-	do_scan | do_fix
+	# If no size is set, the output will be wonky-sized
+	# 210,297 is the size of A4
+	scanimage -x 210 -y 297 --resolution 300 -o "$tempdir/easyscan_$counter.pdf" ||
+		{
+			echo "Failed to scan page..."
+		}
 
 	IFS= read -r -p "Continue scanning? [Y/n] " cont
 	case "$cont" in
@@ -67,12 +21,12 @@ while :; do
 		;;
 	[yY] | *) ;;
 	esac
+	counter=$((counter += 1))
 done
 
 # Multiple files are scanned, join them
-merged_filename="$tempdir/$(date)_final.pdf"
+merged_filename="$tempdir/easyscan_final.pdf"
 pdfunite "$tempdir"/*.pdf "$merged_filename"
-echo "$merged_filename" | do_fix
 
 # Copy scan to current directory
 cp "$merged_filename" "$OUTPUT_FILE"