# Gets the download command supported by the system (currently either curl or wget)
DOWNLOAD_COMMAND=""
function set_download_command () {
  # Try curl.
  if command -v curl > /dev/null; then
    if curl --version | grep Protocols  | grep https > /dev/null; then
      DOWNLOAD_COMMAND="curl -fLSs --retry 5 --retry-delay 1 --retry-connrefused"
      return
    fi
    echo curl does not support https, will try wget for downloading files.
  else

	@CONTRIB_OVERRIDE=$(shell grep -l "istio/community/blob/master/CONTRIBUTING.md" CONTRIBUTING.md)
	@if [ "$(CONTRIB_OVERRIDE)" != "CONTRIBUTING.md" ]; then\
		rm $(TMP)/common-files/files/CONTRIBUTING.md;\
	fi
# istio/istio.io uses the  Creative Commons Attribution 4.0 license. Don't update LICENSE with the common Apache license.

			./pkg/istio-agent/... | sort | uniq |\
		grep -Pv '^k8s.io/(utils|klog|apimachinery)/' |\
		grep -Pv 'envoy/type/|envoy/annotations|envoy/config/core/' |\
		grep -Pv 'envoy/extensions/transport_sockets/tls/' |\
		grep -Pv 'envoy/service/discovery/v3' |\
		grep -Pv 'envoy/extensions/wasm/' |\
		grep -Pv 'envoy/extensions/filters/(http|network)/wasm/' |\

	ISTIO_ENVOY_ARCH_SUFFIX=""
else
	ISTIO_ENVOY_ARCH_SUFFIX="-${TARGET_ARCH}"
fi

# Populate the git version for istio/proxy (i.e. Envoy)
PROXY_REPO_SHA="${PROXY_REPO_SHA:-$(grep PROXY_REPO_SHA istio.deps  -A 4 | grep lastStableSHA | cut -f 4 -d '"')}"

# Envoy binary variables
ISTIO_ENVOY_BASE_URL="${ISTIO_ENVOY_BASE_URL:-https://storage.googleapis.com/istio-build/proxy}"

"${CONTAINER_CLI}" run \
    --rm \
    "${DOCKER_RUN_OPTIONS[@]}" \
    --init \
    --sig-proxy=true \
    ${DOCKER_SOCKET_MOUNT:--v /var/run/docker.sock:/var/run/docker.sock} \
    $CONTAINER_OPTIONS \
    --env-file <(env | grep -v ${ENV_BLOCKLIST}) \
    -e IN_BUILD_CONTAINER=1 \
    -e TZ="${TIMEZONE:-$TZ}" \
    --mount "type=bind,source=${MOUNT_SOURCE},destination=/work" \
    --mount "type=volume,source=go,destination=/go" \

  if [[ -z "${CONFIG}" ]]; then
    # Kubernetes 1.15+
    CONFIG=${DEFAULT_CLUSTER_YAML}
  fi

  # Configure the cluster IP Family if explicitly set
  if [ "${IP_FAMILY}" != "ipv4" ]; then
    grep "ipFamily: ${IP_FAMILY}" "${CONFIG}" || \
    cat <<EOF >> "${CONFIG}"
networking:
  ipFamily: ${IP_FAMILY}
EOF
  fi

  KIND_WAIT_FLAG="--wait=180s"
  KIND_DISABLE_CNI="false"

# first check if there's a replace: e.g. replace istio.io/api => github.com/USER/istioapi v0.0.0-<timestamp>-<SHA>
SHA=$(grep "istio.io/api" go.mod | grep "^replace" | awk -F "-" '{print $NF}')
if [ -n "${SHA}" ]; then
  REPO=$(grep "istio.io/api" go.mod | grep "^replace" | awk '{print $4}')
else
  SHA=$(grep "istio.io/api" go.mod | head -n1 | awk '{ print $2 }')

SCRIPTPATH=$( cd "$(dirname "$0")" && pwd -P )
ROOTDIR=$SCRIPTPATH/..
cd "$ROOTDIR" || exit

# rely on go build cache
ISTIOCTL=bin/istioctl
go build -o $ISTIOCTL ./istioctl/cmd/istioctl

for f in samples/**/*.yaml; do
  if grep -q -e "{{" "$f" ; then
    echo "Skipping check for helm template $f"
    continue
  else
    echo "Validating $f..."
  $ISTIOCTL validate -x \
    -f "$f"
  fi

github.com/go-openapi/swag v0.19.5/go.mod h1:POnQmlKehdgb5mhVOsnJFsivZCEZ/vjK9gh66Z9tfKk=
github.com/go-openapi/swag v0.23.0 h1:vsEVJDUo2hPJ2tu0/Xc+4noaxyEffXNIs3cOULZ+GrE=
github.com/go-openapi/swag v0.23.0/go.mod h1:esZ8ITTYEsH1V2trKHjAN8Ai7xHb8RV+YSZ577vPjgQ=
github.com/go-openapi/validate v0.18.0/go.mod h1:Uh4HdOzKt19xGIGm1qHf/ofbX1YQ4Y+MYsct2VUrAJ4=

if [[ "${IMAGE_VERSION:-}" == "" ]]; then
  IMAGE_VERSION=master-b0f2fd3b4240c8178b14de4689d0e663e11868ff
fi
if [[ "${IMAGE_NAME:-}" == "" ]]; then
  IMAGE_NAME=build-tools
fi

DOCKER_GID="${DOCKER_GID:-$(grep '^docker:' /etc/group | cut -f3 -d:)}"

TIMEZONE=$(readlink "$readlink_flags" /etc/localtime | sed -e 's/^.*zoneinfo\///')

TARGET_OUT="${TARGET_OUT:-$(pwd)/out/${TARGET_OS}_${TARGET_ARCH}}"