# Find a path, preferring the target user's version.
function find_target_profile() {
  local path="$1"; shift

  for dir in $HOME $PROFILE_HOME; do
    if [ -e "$dir/$path" ]; then
      echo "$dir/$path"
      break
    fi
  done

  unset dir
}

# Find a path, preferring the source user's version.
function find_source_profile() {
  local path="$1"; shift

  for dir in $PROFILE_HOME $HOME; do
    if [ -e "$dir/$path" ]; then
      echo "$dir/$path"
      break
    fi
  done

  unset dir
}