rspec_loop.fish

function rspec_loop --description "Run RSpec in a loop, triggered by file changes"
  # file: ~/.config/fish/functions/rspec_loop.fish
  #
  # Run rspec in a loop.  We'll only update the screen when a ruby file
  # changes.
  #
  # usage: rspec_loop 5
  #
  # Where the second argument is the number of seconds to wait
  # before starting the loop again.  Defaults to 10 seconds.
  #
  function _files_mtime
    echo (stat --printf '{%n, %Y}' (find -name '*.rb'))
  end

  # Set a sleep default
  if test -n "$argv"
    set -g loop_rspec_sleep $argv
  else
    set -g loop_rspec_sleep 10
  end

  # Start the main loop
  while true
    if test -n (echo $loop_rspec_files)
      if test $loop_rspec_files != (_files_mtime)
        clear
        rspec
        set -g loop_rspec_files (_files_mtime)
      end
    else
      set -g loop_rspec_files (_files_mtime)
      clear
      rspec
    end
    sleep (echo $loop_rspec_sleep)
  end
    
end