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  1. #!/bin/bash
  2. # https://github.com/travis-ci/travis-build/blob/cbe49ea239ab37b9b38b5b44d287b7ec7a108c16/lib/travis/build/templates/header.sh#L243-L260
  3. #
  4. # MIT LICENSE
  5. #
  6. # Copyright (c) 2016 Travis CI GmbH <contact@travis-ci.org>
  7. #
  8. # Permission is hereby granted, free of charge, to any person obtaining a copy
  9. # of this software and associated documentation files (the "Software"), to deal
  10. # in the Software without restriction, including without limitation the rights
  11. # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  12. # copies of the Software, and to permit persons to whom the Software is
  13. # furnished to do so, subject to the following conditions:
  14. #
  15. # The above copyright notice and this permission notice shall be included in
  16. # all copies or substantial portions of the Software.
  17. #
  18. # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  19. # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  20. # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  21. # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  22. # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  23. # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  24. # THE SOFTWARE.
  25. retry() {
  26. local result=0
  27. local count=1
  28. while [ $count -le 3 ]; do
  29. if [ $result -ne 0 ]; then
  30. echo -e "\n${ANSI_RED}The command \"$@\" failed. Retrying, $count of 3.${ANSI_RESET}\n" >&2
  31. fi
  32. "$@" && { result=0 && break; } || result=$?
  33. count=$(($count + 1))
  34. sleep 1
  35. done
  36. if [ $count -gt 3 ]; then
  37. echo -e "\n${ANSI_RED}The command \"$@\" failed 3 times.${ANSI_RESET}\n" >&2
  38. fi
  39. return $result
  40. }
  41. retry $@