set -e

UPDATE_BRANCH=${UPDATE_BRANCH:-"master"}

SCRIPTPATH="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
ROOTDIR=$(dirname "${SCRIPTPATH}")
cd "${ROOTDIR}"

# Get the sha of top commit
# $1 = repo
function getSha() {
  local dir result
  dir=$(mktemp -d)
  git clone --depth=1 "https://github.com/istio/${1}.git" -b "${UPDATE_BRANCH}" "${dir}"

  result="$(cd "${dir}" && git rev-parse HEAD)"

  # not an official release or release candidate, so get the commit sha
  SHORT_SHA=$(echo "${GATEWAY_VERSION}" | awk -F '-' '{ print $NF }')
  GATEWAY_VERSION=$(curl -s -L -H "Accept: application/vnd.github+json" -H "X-GitHub-Api-Version: 2022-11-28" "https://api.github.com/repos/kubernetes-sigs/gateway-api/commits/${SHORT_SHA}" | jq -r .sha)
fi
if [ -z "${GATEWAY_VERSION}" ]; then

# build configuration. You must set the following variables to control this
# script:
#
#   TF_BISECT_GOOD: Last known good commit (e.g. commit from the last passing job)
#   TF_BISECT_BAD: First bad commit (e.g. commit from the first failing job)
#   TF_BISECT_SCRIPT: The build script path relative to the TF root dir, e.g.
#     ci/official/wheel.sh

<li>Pull Request Link, if any: <a href="$KOKORO_GITHUB_PULL_REQUEST_URL_tensorflow">${KOKORO_GITHUB_PULL_REQUEST_URL_tensorflow:-none}</a></li>
<li>Commit: $KOKORO_GIT_COMMIT_tensorflow</li>
</ul>
<h2>Googlers-Only Links</h2>
<ul>
<li><a href="http://sponge2/$KOKORO_BUILD_ID">Sponge2</a></li>
<li><a href="http://sponge/target:$KOKORO_JOB_NAME">Sponge - recent jobs</a></li>

# This script must be executed from the branch associated with the PR to issue the command on.
#

PR_NUMBER=$(hub pr show -f '%I')

go get -u "istio.io/client-go@${UPDATE_BRANCH}"
go mod tidy

sed -i "s/^BUILDER_SHA=.*\$/BUILDER_SHA=$(getSha release-builder)/" prow/release-commit.sh
chmod +x prow/release-commit.sh
sed -i '/PROXY_REPO_SHA/,/lastStableSHA/ { s/"lastStableSHA":.*/"lastStableSHA": "'"$(getSha proxy)"'"/  }; /ZTUNNEL_REPO_SHA/,/lastStableSHA/ { s/"lastStableSHA":.*/"lastStableSHA": "'"$(getSha ztunnel)"'"/  }' istio.deps

# shellcheck disable=SC1001

#
#       Where the inherited environment variables (DEFAULT_JVM_OPTS, JAVA_OPTS,
#       and GRADLE_OPTS) rely on word-splitting, this is performed explicitly;
#       see the in-line comments for details.
#
#       There are tweaks for specific operating systems such as AIX, CygWin,
#       Darwin, MinGW, and NonStop.
#
#   (3) This script is generated from the Groovy template

	echo No updates needed.
	exit 0
fi

echo Updated for $CODE/$DATA: $files

commitmsg="lib/time: update to $CODE/$DATA

Commit generated by update.bash.

For #22487.
"

if [ "$1" = "-commit" ]; then
	echo "Creating commit. Run 'git reset HEAD^' to undo commit."
	echo
	git commit -m "$commitmsg" $files
	echo
	git log -n1 --stat
	echo