Make Go example work out of the box (#8486)
diff --git a/examples/Makefile b/examples/Makefile
index e9f9635..8ed2492 100644
--- a/examples/Makefile
+++ b/examples/Makefile
@@ -16,7 +16,7 @@
rm -f javac_middleman AddPerson*.class ListPeople*.class com/example/tutorial/*.class
rm -f protoc_middleman addressbook.pb.cc addressbook.pb.h addressbook_pb2.py com/example/tutorial/AddressBookProtos.java
rm -f *.pyc
- rm -f protoc_middleman_go tutorial/*.pb.go add_person_go list_people_go
+ rm -f protoc_middleman_go tutorial/*.pb.go add_person_go list_people_go go.mod go.sum
rm -f protoc_middleman_dart dart_tutorial/*.pb*.dart
rmdir dart_tutorial 2>/dev/null || true
rmdir tutorial 2>/dev/null || true
@@ -51,16 +51,20 @@
list_people_dart: list_people.dart protoc_middleman_dart
-add_person_go: add_person.go protoc_middleman_go
+go_mod:
+ go mod init github.com/protocolbuffers/protobuf/examples
+ go mod tidy
+
+add_person_go: add_person.go protoc_middleman_go go_mod
go build -o add_person_go add_person.go
-add_person_gotest: add_person_test.go add_person_go
+add_person_gotest: add_person_test.go add_person_go go_mod
go test add_person.go add_person_test.go
-list_people_go: list_people.go protoc_middleman_go
+list_people_go: list_people.go protoc_middleman_go go_mod
go build -o list_people_go list_people.go
-list_people_gotest: list_people.go list_people_go
+list_people_gotest: list_people.go list_people_go go_mod
go test list_people.go list_people_test.go
javac_middleman: AddPerson.java ListPeople.java protoc_middleman
diff --git a/examples/addressbook.proto b/examples/addressbook.proto
index c77b57d..5bb3577 100644
--- a/examples/addressbook.proto
+++ b/examples/addressbook.proto
@@ -23,6 +23,10 @@
option csharp_namespace = "Google.Protobuf.Examples.AddressBook";
// [END csharp_declaration]
+// [START go_declaration]
+option go_package = "../tutorial";
+// [END go_declaration]
+
// [START messages]
message Person {
string name = 1;
