1 files changed, 58 insertions, 0 deletions
diff --git a/bin/qr b/bin/qr
new file mode 100755
index 0000000..4821a46
--- /dev/null
+++ b/bin/qr
@@ -0,0 +1,58 @@
+#!/bin/sh
+set -eu
+
+usage() {
+	cat <<-'EOF'
+		Usage:
+		  qr [-s PIXEL_SIZE]
+		  qr -h
+	EOF
+}
+
+help() {
+	cat <<-'EOF'
+
+		Options:
+		  -s PIXEL_SIZE    size of the pixel (default 10)
+		  -h, --help       show this help message
+
+		Read data from STDIN and present a QR image with said data.
+	EOF
+}
+
+for flag in "$@"; do
+	case "$flag" in
+		--)
+			break
+			;;
+		--help)
+			usage
+			help
+			exit
+			;;
+		*)
+			;;
+	esac
+done
+
+PIXEL_SIZE=10
+while getopts 's:h' flag; do
+	case "$flag" in
+		s)
+			PIXEL_SIZE="$OPTARG"
+			;;
+		h)
+			usage
+			help
+			exit
+			;;
+		*)
+			usage >&2
+			exit 2
+			;;
+	esac
+done
+shift $((OPTIND - 1))
+
+
+cat | qrencode -s "$PIXEL_SIZE" -o- | feh -