// Copyright 2017 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

// https://developers.google.com/protocol-buffers/docs/proto3
syntax = "proto3";

package apipb;

message HasAncestorRequest {
  string commit = 1;   // full git commit hash (subject of query)
  string ancestor = 2; // full git commit hash of sought ancestor
}

message HasAncestorResponse {
  // has_ancestor is whether ancestor appears in commit's history.
  bool has_ancestor = 1;

  // unknown_commit is true if the provided commit was unknown.
  bool unknown_commit = 2;
}

service MaintnerService {
  // HasAncestor reports whether one commit contains another commit
  // in its git history.
  rpc HasAncestor(HasAncestorRequest) returns (HasAncestorResponse);
}