update-checksums (#296)

Author: sakai135

build.sh

@@ -7,14 +7,26 @@
 DUMP=wsl-vpnkit.wsl  # exported rootfs file
 TAG_NAME=wslvpnkit      # build tag
 BASE_DISTRO=$1
+UPDATE_CHECKSUMS=$2
 
-# build
 build_args=()
 [ -z "${http_proxy}" ] || build_args+=( --build-arg http_proxy="${http_proxy}" )
 [ -z "${https_proxy}" ] || build_args+=( --build-arg https_proxy="${https_proxy}" )
 [ -z "${no_proxy}" ] || build_args+=( --build-arg no_proxy="${no_proxy}" )
-${DOCKER} build --network host "${build_args[@]}" --tag ${TAG_NAME} --file ./distro/$BASE_DISTRO.dockerfile .
-CONTAINER_ID=$(${DOCKER} create ${TAG_NAME})
-${DOCKER} export "${CONTAINER_ID}" | gzip > ${DUMP}
+
+if [ "${UPDATE_CHECKSUMS}" = "update-checksums" ]; then
+  CHECKSUM_TAG="${TAG_NAME}-checksum"
+
+  ${DOCKER} build --network host "${build_args[@]}" --target gvisor-tap-vsock-arm64 \
+    --tag "${CHECKSUM_TAG}" --file "./distro/${BASE_DISTRO}.dockerfile" .
+  GVFORWARDER_CHECKSUM=$(${DOCKER} run --rm "${CHECKSUM_TAG}" sha256sum /app/bin/gvforwarder | cut -d ' ' -f1)
+  [ "$(grep -Ec '^[[:xdigit:]]+[[:space:]]+\./bin/arm64/gvforwarder$' distro/checksums)" -eq 1 ]
+  sed -i -E "s|^[[:xdigit:]]+[[:space:]]+\\./bin/arm64/gvforwarder\$|${GVFORWARDER_CHECKSUM}  ./bin/arm64/gvforwarder|" distro/checksums
+fi
+
+# build
+${DOCKER} build --network host "${build_args[@]}" --tag "${TAG_NAME}" --file "./distro/${BASE_DISTRO}.dockerfile" .
+CONTAINER_ID=$(${DOCKER} create "${TAG_NAME}")
+${DOCKER} export "${CONTAINER_ID}" | gzip > "${DUMP}"
 ${DOCKER} container rm "${CONTAINER_ID}"
-ls -la ${DUMP}
+ls -la "${DUMP}"