thirdParty/alpaka/script/setup_utilities/travis_retry.sh
#!/bin/bash
#
# MIT LICENSE
#
# Copyright (c) 2018 Travis CI GmbH <contact+travis-build@travis-ci.org>
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
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# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
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travis_retry() {
  # apply `set +euo pipefail` in a local scope so that the following script is not affected and
  # e.g. exit on failure is not deactivated
  (
    set +euo pipefail
    local result=0
    local count=1
    local max=666
    while [ $count -le $max ]; do
      [ $result -ne 0 ] && {
        echo_red "\nThe command \"$*\" failed. Retrying, $count of $max.\n" >&2
      }
      "$@"
      result=$?
      [ $result -eq 0 ] && break
      count=$((count + 1))
      sleep 1
    done
    [ $count -gt $max ] && {
      echo_red "\nThe command \"$*\" failed $max times.\n" >&2
    }
    return $result
  )
}
