api: introduce api/{types,services} for deduplication of API definition

Signed-off-by: Akihiro Suda <suda.akihiro@lab.ntt.co.jp>

tools/gen-gen-go.sh

@@ -0,0 +1,32 @@
+#!/bin/bash
+
+# This script generates gen.go for grpc packages.
+
+set -e
+
+validate_dir() {
+    dir=$1
+    parent=$(dirname $dir)
+    ( [ $parent = api/types ] || [ $parent = api/services ] ) || { echo "Unexpected dir ${dir}"; exit 1; }
+    [ $(find $dir -name '*.proto' | wc -l) -eq 1 ] || { echo "${dir} has unexpected number of proto files"; exit 1; }
+}
+
+repo=$(pwd)
+[ $(basename $repo) = containerd ] || { echo "Unexpected cwd ${repo}"; exit 1; }
+protos=$(find api -name '*.proto')
+for proto in $protos; do
+    dir=$(dirname $proto)
+    validate_dir $dir
+    proto_base=$(basename $proto)
+    pkg="github.com/docker/containerd/${dir}"
+    pkg_base=$(basename $dir)
+    gengo="${dir}/gen.go"
+    cat <<EOF > $gengo
+// Code generated by tools/gen-gen-go.sh
+// DO NOT EDIT!
+
+package ${pkg_base}
+
+//go:generate protoc -I.:${repo}/vendor:${repo}/vendor/github.com/gogo/protobuf:${repo}/../../..:/usr/local/include --gogoctrd_out=plugins=grpc,import_path=${pkg},Mgogoproto/gogo.proto=github.com/gogo/protobuf/gogoproto,Mgoogle/protobuf/descriptor.proto=github.com/gogo/protobuf/protoc-gen-gogo/descriptor:. ${proto_base}
+EOF
+done