kmx.io/dart_sass/priv/dart_sass.bash

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• Hash : 2e8eba44
  Author :
  Date : 2021-07-30T14:29:52
  

  Wrap sass execution in a bash script to address zombie processes (#1)
  
  * Simplify path functions
  * Add wrapper bash script to address zombie processes when --watch is given

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• priv/dart_sass.bash

• #!/usr/bin/env bash
  
  # This script was taken from the Elixir Port guide. It is used to ensure
  # graceful termination of the `sass` process when it detects that stdin
  # has been closed.
  # Link: https://hexdocs.pm/elixir/Port.html#module-zombie-operating-system-processes
  #
  # This script is required until dart-sass supports listening on stdin and
  # gracefully terminating when stdin is closed. There is currently a PR for
  # this behaviour: https://github.com/sass/dart-sass/pull/1411
  #
  # Start the program in the background
  exec "$@" &
  pid1=$!
  
  # Silence warnings from here on
  exec >/dev/null 2>&1
  
  # Read from stdin in the background and
  # kill running program when stdin closes
  exec 0<&0 $(
    while read; do :; done
    kill -KILL $pid1
  ) &
  pid2=$!
  
  # Clean up
  wait $pid1
  ret=$?
  kill -KILL $pid2
  exit $ret
  

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