feat: support c++ targets (#60)

* feat: support c++ targets

* fix: compile all protos under ./proto

* chore: Apply suggestions from code review

---------

Co-authored-by: Yingwen <realevenyag@gmail.com>

c++/greptime/v1/meta/cluster.pb.cc

@@ -0,0 +1,75 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greptime/v1/meta/cluster.proto
+
+#include "greptime/v1/meta/cluster.pb.h"
+
+#include <algorithm>
+
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/extension_set.h>
+#include <google/protobuf/wire_format_lite.h>
+#include <google/protobuf/descriptor.h>
+#include <google/protobuf/generated_message_reflection.h>
+#include <google/protobuf/reflection_ops.h>
+#include <google/protobuf/wire_format.h>
+// @@protoc_insertion_point(includes)
+#include <google/protobuf/port_def.inc>
+
+PROTOBUF_PRAGMA_INIT_SEG
+
+namespace _pb = ::PROTOBUF_NAMESPACE_ID;
+namespace _pbi = _pb::internal;
+
+namespace greptime {
+namespace v1 {
+namespace meta {
+}  // namespace meta
+}  // namespace v1
+}  // namespace greptime
+static constexpr ::_pb::EnumDescriptor const** file_level_enum_descriptors_greptime_2fv1_2fmeta_2fcluster_2eproto = nullptr;
+static constexpr ::_pb::ServiceDescriptor const** file_level_service_descriptors_greptime_2fv1_2fmeta_2fcluster_2eproto = nullptr;
+const uint32_t TableStruct_greptime_2fv1_2fmeta_2fcluster_2eproto::offsets[1] = {};
+static constexpr ::_pbi::MigrationSchema* schemas = nullptr;
+static constexpr ::_pb::Message* const* file_default_instances = nullptr;
+
+const char descriptor_table_protodef_greptime_2fv1_2fmeta_2fcluster_2eproto[] PROTOBUF_SECTION_VARIABLE(protodesc_cold) =
+  "\n\036greptime/v1/meta/cluster.proto\022\020grepti"
+  "me.v1.meta\032\034greptime/v1/meta/store.proto"
+  "2\246\001\n\007Cluster\022Q\n\010BatchGet\022!.greptime.v1.m"
+  "eta.BatchGetRequest\032\".greptime.v1.meta.B"
+  "atchGetResponse\022H\n\005Range\022\036.greptime.v1.m"
+  "eta.RangeRequest\032\037.greptime.v1.meta.Rang"
+  "eResponseB<Z:github.com/GreptimeTeam/gre"
+  "ptime-proto/go/greptime/v1/metab\006proto3"
+  ;
+static const ::_pbi::DescriptorTable* const descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto_deps[1] = {
+  &::descriptor_table_greptime_2fv1_2fmeta_2fstore_2eproto,
+};
+static ::_pbi::once_flag descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto_once;
+const ::_pbi::DescriptorTable descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto = {
+    false, false, 319, descriptor_table_protodef_greptime_2fv1_2fmeta_2fcluster_2eproto,
+    "greptime/v1/meta/cluster.proto",
+    &descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto_once, descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto_deps, 1, 0,
+    schemas, file_default_instances, TableStruct_greptime_2fv1_2fmeta_2fcluster_2eproto::offsets,
+    nullptr, file_level_enum_descriptors_greptime_2fv1_2fmeta_2fcluster_2eproto,
+    file_level_service_descriptors_greptime_2fv1_2fmeta_2fcluster_2eproto,
+};
+PROTOBUF_ATTRIBUTE_WEAK const ::_pbi::DescriptorTable* descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto_getter() {
+  return &descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto;
+}
+
+// Force running AddDescriptors() at dynamic initialization time.
+PROTOBUF_ATTRIBUTE_INIT_PRIORITY2 static ::_pbi::AddDescriptorsRunner dynamic_init_dummy_greptime_2fv1_2fmeta_2fcluster_2eproto(&descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto);
+namespace greptime {
+namespace v1 {
+namespace meta {
+
+// @@protoc_insertion_point(namespace_scope)
+}  // namespace meta
+}  // namespace v1
+}  // namespace greptime
+PROTOBUF_NAMESPACE_OPEN
+PROTOBUF_NAMESPACE_CLOSE
+
+// @@protoc_insertion_point(global_scope)
+#include <google/protobuf/port_undef.inc>

c++/greptime/v1/meta/cluster.pb.h

@@ -0,0 +1,77 @@
+// Generated by the protocol buffer compiler.  DO NOT EDIT!
+// source: greptime/v1/meta/cluster.proto
+
+#ifndef GOOGLE_PROTOBUF_INCLUDED_greptime_2fv1_2fmeta_2fcluster_2eproto
+#define GOOGLE_PROTOBUF_INCLUDED_greptime_2fv1_2fmeta_2fcluster_2eproto
+
+#include <limits>
+#include <string>
+
+#include <google/protobuf/port_def.inc>
+#if PROTOBUF_VERSION < 3021000
+#error This file was generated by a newer version of protoc which is
+#error incompatible with your Protocol Buffer headers. Please update
+#error your headers.
+#endif
+#if 3021006 < PROTOBUF_MIN_PROTOC_VERSION
+#error This file was generated by an older version of protoc which is
+#error incompatible with your Protocol Buffer headers. Please
+#error regenerate this file with a newer version of protoc.
+#endif
+
+#include <google/protobuf/port_undef.inc>
+#include <google/protobuf/io/coded_stream.h>
+#include <google/protobuf/arena.h>
+#include <google/protobuf/arenastring.h>
+#include <google/protobuf/generated_message_util.h>
+#include <google/protobuf/metadata_lite.h>
+#include <google/protobuf/generated_message_reflection.h>
+#include <google/protobuf/repeated_field.h>  // IWYU pragma: export
+#include <google/protobuf/extension_set.h>  // IWYU pragma: export
+#include "greptime/v1/meta/store.pb.h"
+// @@protoc_insertion_point(includes)
+#include <google/protobuf/port_def.inc>
+#define PROTOBUF_INTERNAL_EXPORT_greptime_2fv1_2fmeta_2fcluster_2eproto
+PROTOBUF_NAMESPACE_OPEN
+namespace internal {
+class AnyMetadata;
+}  // namespace internal
+PROTOBUF_NAMESPACE_CLOSE
+
+// Internal implementation detail -- do not use these members.
+struct TableStruct_greptime_2fv1_2fmeta_2fcluster_2eproto {
+  static const uint32_t offsets[];
+};
+extern const ::PROTOBUF_NAMESPACE_ID::internal::DescriptorTable descriptor_table_greptime_2fv1_2fmeta_2fcluster_2eproto;
+PROTOBUF_NAMESPACE_OPEN
+PROTOBUF_NAMESPACE_CLOSE
+namespace greptime {
+namespace v1 {
+namespace meta {
+
+// ===================================================================
+
+
+// ===================================================================
+
+
+// ===================================================================
+
+#ifdef __GNUC__
+  #pragma GCC diagnostic push
+  #pragma GCC diagnostic ignored "-Wstrict-aliasing"
+#endif  // __GNUC__
+#ifdef __GNUC__
+  #pragma GCC diagnostic pop
+#endif  // __GNUC__
+
+// @@protoc_insertion_point(namespace_scope)
+
+}  // namespace meta
+}  // namespace v1
+}  // namespace greptime
+
+// @@protoc_insertion_point(global_scope)
+
+#include <google/protobuf/port_undef.inc>
+#endif  // GOOGLE_PROTOBUF_INCLUDED_GOOGLE_PROTOBUF_INCLUDED_greptime_2fv1_2fmeta_2fcluster_2eproto