Allow operator-sdk from cross-platform local

Signed-off-by: Swarup Ghosh <swghosh@redhat.com>

Author: swghosh

hack/operator-sdk.sh

@@ -13,39 +13,27 @@ BIN="operator-sdk"
 BIN_ARCH="${BIN}_${GOOS}_${GOARCH}"
 OPERATOR_SDK_DL_URL="https://github.com/operator-framework/operator-sdk/releases/download/v${VERSION}"
 
-case ${GOOS} in
-  linux)
-    CHECKSUM="9596b2894b4b1d7f1c3b54cb1ec317b86494dbc00718b48561dfbcb232477c26"
-    ;;
-  darwin)
-    CHECKSUM="bb54842b92efee4ea1071373f7482b62a8130cc3dc4d45a5be50041ae7c81e7c"
-    ;;
-    *)
-    echo "Unsupported OS $GOOS"
-    exit 1
-    ;;
-esac
-
-if [ "$GOARCH" != "amd64" ]; then
+if [[ "$GOOS" != "linux" && "$GOOS" != "darwin" ]]; then
+  echo "Unsupported OS $GOOS"
+  exit 1
+fi
+
+if [[ "$GOARCH" != "amd64" && "$GOARCH" != "arm64" && "$GOARCH" != "ppc64le" && "$GOARCH" != "s390x" ]]; then
   echo "Unsupported architecture $GOARCH"
   exit 1
 fi
 
 command -v curl &> /dev/null || { echo "can't find curl command" && exit 1; }
-command -v sha256sum &> /dev/null || { echo "can't find sha256sum command" && exit 1; }
 
 TEMPDIR=$(mktemp -d)
 BIN_PATH="${TEMPDIR}/${BIN_ARCH}"
 
 echo "> downloading binary"
 curl --silent --location -o "${BIN_PATH}" "${OPERATOR_SDK_DL_URL}/operator-sdk_${GOOS}_${GOARCH}"
 
-if [ "${VERIFY}" == "yes" ]; then
-    echo "> verifying binary"
-    echo "${CHECKSUM} ${BIN_PATH}" | sha256sum -c --quiet
-fi
-
 echo "> installing binary"
 mv "${BIN_PATH}" "${OUTPUT_PATH}"
 chmod +x "${OUTPUT_PATH}"
 rm -rf "${TEMPDIR}"
+
+echo "> operator-sdk binary available at ${OUTPUT_PATH}"