exit 1
fi

LOCAL_OS=$(uname)

# Pass environment set target operating-system to build system
if [[ ${TARGET_OS} ]]; then
    # Target explicitly set
    :
elif [[ $LOCAL_OS == Linux ]]; then
    TARGET_OS=linux
    readlink_flags="-f"
elif [[ $LOCAL_OS == Darwin ]]; then
    TARGET_OS=darwin
    readlink_flags=""
else
    echo "This system's OS, $LOCAL_OS, isn't supported"
    exit 1
fi

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

# Istio 1.6.8 for the x86_64 architecture and linux OS,
# run curl -L https://istio.io/downloadIstio | ISTIO_VERSION=1.6.8 TARGET_ARCH=x86_64 TARGET_OS=Linux sh -.

set -e

# Determines the operating system.
OS="${TARGET_OS:-$(uname)}"
if [ "${OS}" = "Darwin" ] ; then
  OSEXT="osx"
else
  OSEXT="linux"
fi

#
# where ${BRANCH} is either your branch name (e.g. release-1.4) or master.
#

# Determines the operating system.
OS="${TARGET_OS:-$(uname)}"
if [ "${OS}" = "Darwin" ] ; then
  OSEXT="osx"
else
  OSEXT="linux"
fi

# Determine the latest Istio version by version number ignoring alpha, beta, and rc versions.

	for k, v := range archToEnvMap(a) {
		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)),

# 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
#-----------------------------------------------------------------------------