watcher

#!/bin/bash

trap ctrl_c SIGINT

function ctrl_c {
  make --no-print-directory clean && \
    echo -e "\e[92mPatch cleaned\e[0m" || \
    echo -e "\e[33mCould not clean patch\e[0m"
  exit $?
}

function watch_inotify {
  inotifywait --recursive \
    --event modify,move,create,delete \
    $DIRECTORY_TO_OBSERVE
}

function watch_fswatch {
  fswatch --recursive --one-event \
    --event Created --event Updated --event Removed \
    ${DIRECTORY_TO_OBSERVE}
}


if command -v inotifywait > /dev/null 2>&1; then
  wichWatcher=inotify
  function watcher { watch_inotify; }
elif command -v fswatch > /dev/null 2>&1; then
  wichWatcher=fswatch
  function watcher { watch_fswatch; }
else
  echo -e "\e[31m[ERROR] No watcher available\e[0m"
  echo "Neither 'inotify' nor 'fswatch' are available."
  echo "You can follow 'CONTRIBUTING.md' guidelines to install one of them,"
  echo ""
  echo -e "\e[33malternative:\e[0m"
  echo "  run 'make set-override' first,"
  echo "  and then 'make patch' every time you change a file in 'srcd' dir"
  echo ""
  exit 1
fi

make --no-print-directory apply-patch
echo -e "\e[92mWatching for changes in 'srcd'; using '${wichWatcher}' ...\e[0m"
while watcher; do
  make --no-print-directory apply-patch
done