open_source / mqtt-cpp

  #!/bin/bash

  # =================

  # = Do not change.

  # =================
  GIT_URL_SUBS="http://gitlab.osdev.nl/open_source"

  FUNC_RESULT=""

  function print_usage_exit() 
  {

      echo "Usage $0 -i|--install|-u|--update"
      echo "	-i or --install  Install the submodules mentioned in the submodules.list" 
      echo "	-u or --update   Update the submodules mentioned in the submodules.list"
      echo " "
      exit 1
  }
  

  function check_top_or_sub() 
  {

      # This function checks if we're the top-repository.
      # In that case we need the submodules.. If we're already a submodule, 
      # we simply exit this script with a message

      if [ -e ./.git ]; then
  	    FUNC_RESULT="1"
          return
      elif [ -e ../.git ]; then
          if [ -e ../.submodules ]; then

              echo "Seems like we're already a submodule. Nothing to do here."

              FUNC_RESULT="0"
              return

          fi
      fi

      FUNC_RESULT="0"
      return

  }
  

  function check_working_dir() 
  {

      # Check if we're in the top-level directory of our repository.
      if [ -f ./scripts/submodules.list ]; then
          # We're good to go

          FUNC_RESULT="1"
          return

      fi

      FUNC_RESULT="0"
      return

  }
  

  function read_submodules() 
  {

      if [ -e ./scripts/submodules.list ]; then
          source ./scripts/submodules.list

      fi
  }
  

  function add_submodules() 
  {

      for SUB_MODULE in ${SUB_MODULES}
      do

          git submodule add -f ${GIT_URL_SUBS}/${SUB_MODULE}.git ${SUB_MODULE}
          git config submodule.${SUB_MODULE}.url ${GIT_URL_SUBS}/${SUB_MODULE}.git

      done
  }
  

  function get_submodules() 
  {

      git submodule update --init --recursive
  }
  

  function update_submodules() 
  {

      git submodule update --recursive
  }
  
  # =============================================================================
  # ==        T H E   M A I N   E N T R Y   O F   T H I S   S C R I P T        ==
  # =============================================================================

  check_top_or_sub
  if [ "${FUNC_RESULT}" == "0" ]; then

      echo "Seems like we're a submodule already or not part of a repository."
      exit 0
  fi
  

  check_working_dir
  if [ "${FUNC_RESULT}" == "0" ]; then

      echo "Go to the top of this repository and type : scripts/setup_submodules [-i|--install]"
      exit 0
  fi
  

  read_submodules
  
  case "$1" in
      -i*|--install*)
          echo "Installing submodules for this repository ( ${PWD} )"
          add_submodules
          get_submodules
          ;;
      -u*|--update*)
          echo "Update submodules : ${SUB_MODULES}"
          update_submodules
          ;;
      *)
          echo "No parameters found..."
          print_usage_exit
          ;;
  esac