notices within Derivative Works that You distribute, alongside
          or as an addendum to the NOTICE text from the Work, provided
          that such additional attribution notices cannot be construed
          as modifying the License.

      You may add Your own copyright statement to Your modifications and
      may provide additional or different license terms and conditions

# Copyright 2012 The Go Authors. All rights reserved.
# Use of this source code is governed by a BSD-style
# license that can be found in the LICENSE file.

eval `{go tool dist env -9}

if(! test -x $GOTOOLDIR/dist){
	echo 'cannot find $GOTOOLDIR/dist; nothing to clean' >[1=2]
	exit noclean
}

$GOBIN/go clean -i std
$GOBIN/go tool dist clean

		echo "OS '${KNAME}' is not supported. Supported OS: [Linux, FreeBSD, OpenBSD, NetBSD, Darwin, DragonFly]"
		exit 1
		;;
	esac
}

assert_check_golang_env() {
	if ! which go >/dev/null 2>&1; then
		echo "Cannot find go binary in your PATH configuration, please refer to Go installation document at https://golang.org/doc/install"
		exit 1
	fi

	installed_go_version=$(go version | sed 's/^.* go\([0-9.]*\).*$/\1/')

  if command -v wget > /dev/null; then
    DOWNLOAD_COMMAND="wget -qO -"
    return
  fi
  echo wget is not installed.

  echo Error: curl is not installed or does not support https, wget is not installed. \
       Cannot download envoy. Please install wget or add support of https to curl.
  exit 1
}

# Downloads and extract an Envoy binary if the artifact doesn't already exist.
# Params:

set -e

if [ ! -f run.bash ]; then
	echo 'clean.bash must be run from $GOROOT/src' 1>&2
	exit 1
fi
export GOROOT="$(cd .. && pwd)"

gobin="${GOROOT}"/bin
if ! "$gobin"/go help >/dev/null 2>&1; then
	echo 'cannot find go command; nothing to clean' >&2
	exit 1
fi

"$gobin/go" clean -i std
"$gobin/go" tool dist clean

    if [[ "${fn}" == *.go || "${fn}" == *.rs ]]; then
      newfile=$(cat "${WD}/copyright-banner-go.txt" "${fn}")
      echo "${newfile}" > "${fn}"
      echo "Fixing license: ${fn}"
    else
      echo "Cannot fix license: ${fn}. Unknown file type"
    fi
  fi

  tfrun python3 tensorflow/tools/ci_build/update_version.py --nightly
fi
source ci/official/utilities/get_versions.sh

# Note on gsutil commands:
# "gsutil cp" always "copies into". It cannot act on the contents of a directory
# and it does not seem possible to e.g. copy "gs://foo/bar" as anything other than
# "/path/bar". This script uses "gsutil rsync" instead, which acts on directory

      else
        script --flush --quiet --return "${tmpFile}" --command "${*}"
      fi
    else
      # if we aren't a TTY, run directly as script will always run with a tty, which may output content that
      # we cannot display
      set -o pipefail; "$@" 2>&1 | tee "${tmpFile}"
    fi
    # shellcheck disable=SC2181
    if [[ $? == 0 ]]; then
      break
    fi
    if ! grep -Eq "${failureRegex}" "${tmpFile}"; then

# locally or run under Docker. setup_docker.sh, below, redefines it as "docker
# exec".
# Important: "tfrun foo | bar" is "( tfrun foo ) | bar", not "tfrun (foo | bar)".
# Therefore, "tfrun" commands cannot include pipes -- which is
# probably for the better. If a pipe is necessary for something, it is probably
# complex. Write a well-documented script under utilities/ to encapsulate the
# functionality instead.

echo
cd src
./make.bash --no-banner $forceflag
gohostos="$(../bin/go env GOHOSTOS)"
gohostarch="$(../bin/go env GOHOSTARCH)"
goos="$(../bin/go env GOOS)"
goarch="$(../bin/go env GOARCH)"

# NOTE: Cannot invoke go command after this point.
# We're about to delete all but the cross-compiled binaries.
cd ..
if [ "$goos" = "$gohostos" -a "$goarch" = "$gohostarch" ]; then
	# cross-compile for local system. nothing to copy.