msg: add message translation node for ROS

Tools/astyle/files_to_check_code_style.sh

@@ -8,6 +8,7 @@ if [ $# -gt 0 ]; then
 fi
 
 exec find boards msg src platforms test \
+    -path msg/translation_node -prune -o \
     -path platforms/nuttx/NuttX -prune -o \
     -path platforms/qurt/dspal -prune -o \
     -path src/drivers/ins/vectornav/libvnc -prune -o \

Tools/copy_to_ros_ws.sh

@@ -0,0 +1,34 @@
+#! /bin/bash
+# Copy msgs and the message translation node into a ROS workspace directory
+
+DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )
+
+PX4_SRC_DIR="$DIR/.."
+
+WS_DIR="$1"
+if [ ! -e "${WS_DIR}" ]
+then
+	echo "Usage: $0 <ros_ws_dir>"
+	exit 1
+fi
+WS_DIR="$WS_DIR"/src
+if [ ! -e "${WS_DIR}" ]
+then
+	echo "'src' directory not found inside ROS workspace (${WS_DIR})"
+	exit 1
+fi
+
+cp -ar "${PX4_SRC_DIR}"/msg/translation_node "${WS_DIR}"
+cp -ar "${PX4_SRC_DIR}"/msg/px4_msgs_old "${WS_DIR}"
+PX4_MSGS_DIR="${WS_DIR}"/px4_msgs
+if [ ! -e "${PX4_MSGS_DIR}" ]
+then
+  git clone https://github.com/PX4/px4_msgs.git "${PX4_MSGS_DIR}"
+  rm -rf "${PX4_MSGS_DIR}"/msg/*.msg
+  rm -rf "${PX4_MSGS_DIR}"/msg/versioned/*.msg
+  rm -rf "${PX4_MSGS_DIR}"/srv/*.srv
+fi
+cp -ar "${PX4_SRC_DIR}"/msg/*.msg "${PX4_MSGS_DIR}"/msg
+mkdir -p "${PX4_MSGS_DIR}"/msg/versioned
+cp -ar "${PX4_SRC_DIR}"/msg/versioned/*.msg "${PX4_MSGS_DIR}"/msg/versioned
+cp -ar "${PX4_SRC_DIR}"/srv/*.srv "${PX4_MSGS_DIR}"/srv