Remove Xcode build dir when switching branches

post-checkout

#!/bin/bash
#
# Post-checkout script to remove Xcode build directory when
# checkout out from a branch.
#
# post-checkout args
# <prev HEAD> <new HEAD> <changing branches, flag=1>
#
BUILD_DIR='build'

if [ $3 -eq 1 ]; then
  if [ -d $BUILD_DIR ]; then
    rm -rf $BUILD_DIR
    echo "Hook: Removed 'build' folder"
  fi
fi