Snippets to look for files in parent directories

find_up_macros.bash

## https://unix.stackexchange.com/a/22215

## find_up filename
find_up () {
  path=$(pwd)
  while [[ "$path" != "" && ! -e "$path/$1" ]]; do
    path=${path%/*}
  done
  echo "$path"
}

## find_parent_ws
find_parent_ws () {
  path=$(pwd)
  while [[ "$path" != "" && ! -e "$path/.catkin_workspace" ]]; do
    path=${path%/*}
  done
  echo "$path"
}