tools: add update-grpc updater

PR-URL: #159
Reviewed-By: Trevor Norris <trev.norris@gmail.com>

tools/dep_updaters/update-grpc.sh

@@ -0,0 +1,96 @@
+#!/bin/sh
+set -e
+# Shell script to update protobuf in the source tree to specific version
+
+BASE_DIR=$(cd "$(dirname "$0")/../.." && pwd)
+DEPS_DIR="$BASE_DIR/deps"
+
+[ -z "$NODE" ] && NODE="$BASE_DIR/out/Release/node"
+[ -x "$NODE" ] || NODE=$(command -v node)
+
+# shellcheck disable=SC1091
+. "$BASE_DIR/tools/dep_updaters/utils.sh"
+
+# NEW_VERSION=$1
+
+# if [ "$#" -le 0 ]; then
+#   echo "Error: please provide a protobuf version to update to"
+#   exit 1
+# fi
+
+NEW_VERSION="$("$NODE" --input-type=module <<'EOF'
+const res = await fetch('https://api.github.com/repos/grpc/grpc/releases/latest',
+  process.env.GITHUB_TOKEN && {
+    headers: {
+      "Authorization": `Bearer ${process.env.GITHUB_TOKEN}`
+    },
+  });
+if (!res.ok) throw new Error(`FetchError: ${res.status} ${res.statusText}`, { cause: res });
+const { tag_name } = await res.json();
+console.log(tag_name.replace('v', ''));
+EOF
+)"
+
+CURRENT_VERSION=$(grep GRPC_CPP_VERSION_STRING ./deps/grpc/include/grpcpp/version_info.h | awk -F" " '{print $3}' | tr -d '"')
+
+# This function exit with 0 if new version and current version are the same
+compare_dependency_version "grpc" "$NEW_VERSION" "$CURRENT_VERSION"
+
+echo "Making temporary workspace"
+
+WORKSPACE=$(mktemp -d 2> /dev/null || mktemp -d -t 'tmp')
+
+cleanup () {
+  EXIT_CODE=$?
+  [ -d "$WORKSPACE" ] && rm -rf "$WORKSPACE"
+  exit $EXIT_CODE
+}
+
+trap cleanup INT TERM EXIT
+
+# NEW_VERSION="1.59.3"
+
+GRPC_TARBALL="v$NEW_VERSION.tar.gz"
+
+cd "$WORKSPACE"
+
+echo "Cloning grpc repository"
+git clone -b "v$NEW_VERSION" --depth=1 --no-recurse-submodules https://github.com/grpc/grpc
+
+cd grpc
+
+git submodule init third_party/abseil-cpp third_party/address_sorting third_party/re2 third_party/upb third_party/xxhash
+git submodule update --depth 1 third_party/abseil-cpp third_party/address_sorting third_party/re2 third_party/upb third_party/xxhash
+
+echo "Removing everything, except source files and LICENSE"
+for dir in *; do
+  if [ "$dir" = "include" ] || \
+     [ "$dir" = "src" ] || \
+     [ "$dir" = "spm-cpp-include" ] || \
+     [ "$dir" = "spm-core-include" ] || \
+     [ "$dir" = "third_party" ] || \
+     [ "$dir" = "Makefile" ] || \
+     [ "$dir" = "LICENSE" ]; then
+    continue
+  fi
+  rm -rf "$dir"
+done
+
+for dir in src/*; do
+  if [ "$dir" = "src/core" ] || [ "$dir" = "src/cpp" ]; then
+    continue
+  fi
+  rm -rf "$dir"
+done
+
+echo "Copying existing gyp files"
+cp "$DEPS_DIR/grpc/grpc.gyp" "$WORKSPACE/grpc"
+
+echo "Replacing existing grpc"
+rm -rf "$DEPS_DIR/grpc"
+mv "$WORKSPACE/grpc" "$DEPS_DIR/"
+
+# Update the version number on maintaining-dependencies.md
+# and print the new version as the last line of the script as we need
+# to add it to $GITHUB_ENV variable
+finalize_version_update "grpc" "$NEW_VERSION"