#
# zim_update - update the zim repository
#

local current_head
local diff

cd ${ZIM_HOME}

current_head=$(git rev-parse HEAD)
# this is the cleanest way I know how to update a repository
git remote update -p
git merge --ff-only @\{u\}
# and update the submodules
git submodule update --init --recursive

#Only care if we actually updated
if [ ${current_head} != $(git rev-parse HEAD) ]; then
  # Go to templates
  cd ${ZIM_HOME}/Templates

  # Create diff var
  diff=$(git diff HEAD~1 HEAD ./*)

  #Only show changes if templates have changed
  if [ ! -z ${diff} ]; then
    echo "Please review the following changes to Zim's default configuration:"
    echo ${diff}
  fi
fi