# Pass environment set target architecture to build system
if [[ ${TARGET_ARCH} ]]; then
    # Target explicitly set
    :
elif [[ ${LOCAL_ARCH} == x86_64 ]]; then
    TARGET_ARCH=amd64
elif [[ ${LOCAL_ARCH} == armv8* ]]; then
    TARGET_ARCH=arm64
elif [[ ${LOCAL_ARCH} == arm64* ]]; then
    TARGET_ARCH=arm64
elif [[ ${LOCAL_ARCH} == aarch64* ]]; then
    TARGET_ARCH=arm64
elif [[ ${LOCAL_ARCH} == armv* ]]; then
    TARGET_ARCH=arm

# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

INPUTS=("${@}")
TARGET_ARCH=${TARGET_ARCH:-amd64}
DOCKER_WORKING_DIR=${INPUTS[${#INPUTS[@]}-1]}
FILES=("${INPUTS[@]:0:${#INPUTS[@]}-1}")

set -eu;

# detect_arch returns "amd64", "arm64", or "" depending on if the file is arch specific

                  tail -1 | awk -F'/' '{ print $2}')"
  ISTIO_VERSION="${ISTIO_VERSION##*/}"
fi

LOCAL_ARCH=$(uname -m)
if [ "${TARGET_ARCH}" ]; then
    LOCAL_ARCH=${TARGET_ARCH}
fi

case "${LOCAL_ARCH}" in
  x86_64|amd64)
    ISTIO_ARCH=amd64
    ;;
  armv8*|aarch64*|arm64)
    ISTIO_ARCH=arm64
    ;;
  armv*)
    ISTIO_ARCH=armv7
    ;;
  *)

  printf "Unable to get latest Istio version. Set ISTIO_VERSION env var and re-run. For example: export ISTIO_VERSION=1.14.0"
  exit 1;
fi

LOCAL_ARCH=$(uname -m)
if [ "${TARGET_ARCH}" ]; then
    LOCAL_ARCH=${TARGET_ARCH}
fi

case "${LOCAL_ARCH}" in
  x86_64|amd64)
    ISTIO_ARCH=amd64
    ;;
  armv8*|aarch64*|arm64)
    ISTIO_ARCH=arm64
    ;;
  armv*)
    ISTIO_ARCH=armv7
    ;;
  *)

	fpm -s dir -t rpm -n ${SIDECAR_PACKAGE_NAME} -p ${TARGET_OUT_LINUX}/release/istio-sidecar.rpm --version $(PACKAGE_VERSION) -f \
		--url http://istio.io  \
		--license Apache \
		--architecture "${TARGET_ARCH}" \
		--vendor istio.io \
		--maintainer ******@****.*** \
		--after-install tools/packaging/postinst.sh \
		--config-files /var/lib/istio/envoy/envoy_bootstrap_tmpl.json \
		--config-files /var/lib/istio/envoy/sidecar.env \

endif

# istioctl-install builds then installs istioctl into $GOPATH/BIN
# Used for debugging istioctl during dev work
.PHONY: istioctl-install
istioctl-install: istioctl-install-container

  exit 1
fi

# Setup arch suffix for envoy binary. For backwards compatibility, amd64 has no suffix.
if [[ "${TARGET_ARCH}" == "amd64" ]]; then
	ISTIO_ENVOY_ARCH_SUFFIX=""
else
	ISTIO_ENVOY_ARCH_SUFFIX="-${TARGET_ARCH}"
fi

# Populate the git version for istio/proxy (i.e. Envoy)

ISTIO_ZTUNNEL_VERSION="${ISTIO_ZTUNNEL_VERSION:-${ZTUNNEL_REPO_SHA}}"
ISTIO_ZTUNNEL_RELEASE_URL="${ISTIO_ZTUNNEL_RELEASE_URL:-${ISTIO_ZTUNNEL_BASE_URL}/ztunnel-${ISTIO_ZTUNNEL_VERSION}-${TARGET_ARCH}}"
ISTIO_ZTUNNEL_LINUX_RELEASE_NAME="${ISTIO_ZTUNNEL_LINUX_RELEASE_NAME:-ztunnel-${ISTIO_ZTUNNEL_VERSION}}"
ISTIO_ZTUNNEL_LINUX_RELEASE_DIR="${ISTIO_ZTUNNEL_LINUX_RELEASE_DIR:-${TARGET_OUT_LINUX}/release}"

		s = append(s, k+"="+v)
	}
	return s
}

func archToEnvMap(a string) map[string]string {
	os, arch, _ := strings.Cut(a, "/")
	return map[string]string{
		"TARGET_OS":        os,
		"TARGET_ARCH":      arch,
		"TARGET_OUT":       filepath.Join(testenv.IstioSrc, "out", fmt.Sprintf("%s_%s", os, arch)),
		"TARGET_OUT_LINUX": filepath.Join(testenv.IstioSrc, "out", fmt.Sprintf("linux_%s", arch)),
	}
}

export GOPATH

# If GOPATH is made up of several paths, use the first one for our targets in this Makefile
GO_TOP := $(shell echo ${GOPATH} | cut -d ':' -f1)
export GO_TOP

GO ?= go

GOARCH_LOCAL := $(TARGET_ARCH)
GOOS_LOCAL := $(TARGET_OS)

#-----------------------------------------------------------------------------
# Output control
#-----------------------------------------------------------------------------