simple-cpp-game-study/sfmldemo/watch_build.sh

#!/usr/bin/env bash
set -e

fswatch -o *.cpp | while read num
do echo ">>>>>>>>>>>>>>>>>>>>>> `date`"
  if meson compile -C builddir
  then
    ./builddir/sfmldemo
  else
    echo "^^^^^^^^^^^^^^^^^^^^^ ERROR `date`"
  fi
done