GH-89: Add support for generating Flight related files

Fix GH-89

arrow/flight/gen.go

@@ -16,5 +16,5 @@
 
 package flight
 
-//go:generate protoc --experimental_allow_proto3_optional -I../../../format --go_out=./gen/flight --go-grpc_out=./gen/flight --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative Flight.proto
-//go:generate protoc --experimental_allow_proto3_optional -I../../../format --go_out=./gen/flight --go-grpc_out=./gen/flight --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative FlightSql.proto
+//go:generate protoc --experimental_allow_proto3_optional -I${APACHE_ARROW_FORMAT_DIR} --go_out=./gen/flight --go-grpc_out=./gen/flight --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative Flight.proto
+//go:generate protoc --experimental_allow_proto3_optional -I${APACHE_ARROW_FORMAT_DIR} --go_out=./gen/flight --go-grpc_out=./gen/flight --go_opt=paths=source_relative --go-grpc_opt=paths=source_relative FlightSql.proto

dev/sync_flight.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+#
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, 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.
+
+set -eux
+
+source_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+
+arrow_source="${source_dir}/arrow-source"
+if [ -d "${arrow_source}" ]; then
+  have_arrow_source=true
+else
+  have_arrow_source=false
+  git clone --depth 1 https://github.com/apache/arrow.git "${arrow_source}"
+fi
+
+pushd "${source_dir}/arrow/flight"
+APACHE_ARROW_FORMAT_DIR="${arrow_source}/format" go generate gen.go
+popd
+
+if [ "${have_arrow_source}" = "false" ]; then
+  rm -rf "${arrow_source}"
+fi