script to encode a payload

encode.sh

@@ -0,0 +1,68 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+SCRIPT_DIR="$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)"
+
+PYTHON="python3"
+
+ENCODER="$SCRIPT_DIR/encoder.py"
+DUCK2SPARK="$SCRIPT_DIR/duck2spark.py"
+
+INPUT_DIR="$SCRIPT_DIR/ducky-payloads"
+OUTPUT_DIR="$SCRIPT_DIR/payloads"
+RESOURCE_DIR="$SCRIPT_DIR/resources"
+
+usage() {
+    echo "Usage: $0 <payload> <layout>"
+    echo
+    echo "Example:"
+    echo "  $0 open-website fr"
+}
+
+if [[ $# -ne 2 ]]; then
+    usage
+    exit 1
+fi
+
+PAYLOAD="$1"
+LAYOUT="$2"
+
+INPUT="$INPUT_DIR/$PAYLOAD.duck"
+OUTPUT="$OUTPUT_DIR/$PAYLOAD.ino"
+TMP_BIN="$OUTPUT_DIR/$PAYLOAD.bin"
+LANG_FILE="$RESOURCE_DIR/$LAYOUT.properties"
+
+if [[ ! -f "$INPUT" ]]; then
+    echo "Error: payload not found: $INPUT" >&2
+    exit 1
+fi
+
+if [[ ! -f "$LANG_FILE" ]]; then
+    echo "Error: keyboard layout not found: $LANG_FILE" >&2
+    exit 1
+fi
+
+mkdir -p "$OUTPUT_DIR"
+
+echo "Payload : $PAYLOAD"
+echo "Layout  : $LAYOUT"
+echo "Input   : $INPUT"
+echo "Output  : $OUTPUT"
+
+# DuckyScript to binary payload.
+"$PYTHON" "$ENCODER" \
+    -i "$INPUT" \
+    -o "$TMP_BIN" \
+    -l "$LAYOUT"
+
+# Binary payload to Arduino sketch.
+"$PYTHON" "$DUCK2SPARK" \
+    -i "$TMP_BIN" \
+    -l 1 \
+    -f 1000 \
+    -o "$OUTPUT"
+
+# Remove intermediate file.
+rm -f "$TMP_BIN"
+
+echo "Generated $OUTPUT"