add install-prereqs-mac.sh

Tools/scripts/install-prereqs-mac.sh

@@ -0,0 +1,48 @@
+#!/bin/bash
+echo "Checking homebrew..."
+$(which -s brew)
+if [[ $? != 0 ]] ; then
+    echo "installing homebrew..."
+    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+else
+    echo "Homebrew installed"
+fi
+
+#install xconde dependencies
+xcode-select --install
+
+brew tap PX4/homebrew-px4
+brew update
+brew install genromfs
+brew install gcc-arm-none-eabi
+brew install gawk
+
+echo "Checking pip..."
+$(which -s pip)
+if [[ $? != 0 ]] ; then
+    echo "installing pip..."
+    sudo easy_install pip
+else
+    echo "pip installed"
+fi
+
+sudo pip2 install pyserial future catkin_pkg empy
+
+SCRIPT_DIR=$(dirname $(realpath ${BASH_SOURCE[0]}))
+ARDUPILOT_ROOT=$(realpath "$SCRIPT_DIR/../../")
+ARDUPILOT_TOOLS="Tools/autotest"
+
+exportline="export PATH=$ARDUPILOT_ROOT/$ARDUPILOT_TOOLS:\$PATH";
+grep -Fxq "$exportline" ~/.profile 2>/dev/null || {
+    read -p "Add $ARDUPILOT_ROOT/$ARDUPILOT_TOOLS to your PATH [Y/n]?" -n 1 -r
+    if [[ $REPLY =~ ^[Yy]$ ]] ; then
+        echo $exportline >> ~/.profile
+        eval $exportline
+    else
+        echo "Skipping adding $ARDUPILOT_ROOT/$ARDUPILOT_TOOLS to PATH."
+    fi
+}
+
+git submodule update --init --recursive
+
+echo "finished"