Use inotify modify events to compile Crystal Lang

inotify-compile.sh

#! /usr/bin/env sh
#
# https://github.com/rvoicilas/inotify-tools/wiki#inotifywait
#
CURPATH=`pwd`

inotifywait -mr \
--exclude "[^c][^r]$" \
--timefmt '%d/%m/%y %H:%M:%S' --format '%T %w %f' \
-e modify /usr/src/app/my-app/src | while read date time dir file; do
  FILECHANGE=${dir}${file}
  FILECHANGEREL=`echo "$FILECHANGE" | sed 's_'$CURPATH'/__'`

  echo $time $FILECHANGEREL
  crystal build --no-codegen $FILECHANGEREL
done