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utils-std

Collection of commonly available Unix tools git clone https://anongit.hacktivis.me/git/utils-std.git/

tty.sh (657B)

    

  1. #!/bin/sh
  2. # SPDX-FileCopyrightText: 2017 Haelwenn (lanodan) Monnier <contact+utils@hacktivis.me>
  3. # SPDX-License-Identifier: MPL-2.0
  5. target="$(dirname "$0")/../cmd/tty"
  6. plans=3
  7. . "$(dirname "$0")/tap.sh"
  9. tty >/dev/null 2>/dev/null
  10. is_tty=$?
  12. out_devnull() {
  13. 	"$target" "$@" >/dev/null
  14. }
  16. case $is_tty in
  17. 	0)
  18. 		t noargs '' "$(tty)
  19. "
  20. 		t_cmd out_devnull '' out_devnull
  21. 	;;
  22. 	1)
  23. 		t --exit=1 noargs '' 'not a tty
  24. '
  25. 		t_cmd --exit=1 out_devnull '' out_devnull
  26. 	;;
  27. 	*)
  28. 		skip noargs "system tty exited with $?"
  29. 		skip out_devnull "system tty exited with $?"
  30. 	;;
  31. esac
  33. in_devnull() {
  34. 	"$target" "$@" </dev/null
  35. }
  36. t_cmd --exit=1 in_devnull 'not a tty
  37. ' in_devnull