packages/easyscan: remove temporary pdffiles

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

@@ -1,18 +1,47 @@
-if [ $# -eq 0 ]; then
+#
+# Declare variables
+#
+DEVICE="${SANE_DEFAULT_DEVICE:-}"
+OUTPUT_FILE=
+
+while [[ $# -gt 0 ]]; do
+	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_"$(date)".pdf
-else
+fi
-	OUTPUT_FILE="''${1%.*}.pdf"
+
+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)"
 
-device=$(scanimage --formatted-device-list="%d (%v %m)" --list-devices |
-	fzf --header "Pick a device:" |
-	cut -d ' ' -f 1)
-
 do_scan() {
 	filename="$tempdir/$(date).pdf"
-	while ! scanimage --format=pdf --device="$device" --resolution 300 >"$filename"; do
+	while ! scanimage --format=pdf --device="$DEVICE" --resolution 300 >"$filename"; do
 		:
 	done
 	echo "$filename"