Update upstream proto files and add google.golang.org/genproto support.

.travis.yml

@@ -1,7 +1,8 @@
 language: go
 sudo: false
 go:
-- 1.7.3
+- 1.8.x
+- 1.7.x
 - tip
 go_import_path: github.com/grpc-ecosystem/grpc-gateway
 cache:
@@ -23,7 +24,7 @@ before_script:
 - sh -c 'cd examples/browser && npm install'
 script:
 - make realclean && make examples SWAGGER_CODEGEN="java -jar $HOME/local/swagger-codegen-cli.jar"
-- if (go version | grep -qv devel) && [ -z "${GATEWAY_PLUGIN_FLAGS}" ]; then test -z "$(git status --porcelain)" || (git status; git diff; exit 1); fi
+- if (go version | grep -q 1.8) && [ -z "${GATEWAY_PLUGIN_FLAGS}" ]; then test -z "$(git status --porcelain)" || (git status; git diff; exit 1); fi
 - env GLOG_logtostderr=1 go test -race -v github.com/grpc-ecosystem/grpc-gateway/...
 - make lint
 - sh -c 'cd examples/browser && gulp'

Makefile

@@ -38,14 +38,12 @@ GATEWAY_PLUGIN_SRC= utilities/doc.go \
 GATEWAY_PLUGIN_FLAGS?=
 
 GOOGLEAPIS_DIR=third_party/googleapis
-OPTIONS_PROTO=$(GOOGLEAPIS_DIR)/google/api/annotations.proto $(GOOGLEAPIS_DIR)/google/api/http.proto
-OPTIONS_GO=$(OPTIONS_PROTO:.proto=.pb.go)
 OUTPUT_DIR=_output
 
 RUNTIME_PROTO=runtime/internal/stream_chunk.proto
 RUNTIME_GO=$(RUNTIME_PROTO:.proto=.pb.go)
 
-PKGMAP=Mgoogle/protobuf/descriptor.proto=$(GO_PLUGIN_PKG)/descriptor,Mgoogle/api/annotations.proto=$(PKG)/$(GOOGLEAPIS_DIR)/google/api,Mexamples/sub/message.proto=$(PKG)/examples/sub
+PKGMAP=Mgoogle/protobuf/descriptor.proto=$(GO_PLUGIN_PKG)/descriptor,Mexamples/sub/message.proto=$(PKG)/examples/sub
 ADDITIONAL_FLAGS=
 ifneq "$(GATEWAY_PLUGIN_FLAGS)" ""
 	ADDITIONAL_FLAGS=,$(GATEWAY_PLUGIN_FLAGS)
@@ -81,23 +79,21 @@ SWAGGER_CODEGEN=swagger-codegen
 
 PROTOC_INC_PATH=$(dir $(shell which protoc))/../include
 
-generate: $(OPTIONS_GO) $(RUNTIME_GO)
+generate: $(RUNTIME_GO)
 
 .SUFFIXES: .go .proto
 
 $(GO_PLUGIN): 
 	go get $(GO_PLUGIN_PKG)
 	go build -o $@ $(GO_PLUGIN_PKG)
 
-$(OPTIONS_GO): $(OPTIONS_PROTO) $(GO_PLUGIN)
-	protoc -I $(PROTOC_INC_PATH) -I$(GOOGLEAPIS_DIR) --plugin=$(GO_PLUGIN) --go_out=$(PKGMAP):$(GOOGLEAPIS_DIR) $(OPTIONS_PROTO)
 $(RUNTIME_GO): $(RUNTIME_PROTO) $(GO_PLUGIN)
 	protoc -I $(PROTOC_INC_PATH) --plugin=$(GO_PLUGIN) -I. --go_out=$(PKGMAP):. $(RUNTIME_PROTO)
 
-$(GATEWAY_PLUGIN): $(OPTIONS_GO) $(RUNTIME_GO) $(GATEWAY_PLUGIN_SRC)
+$(GATEWAY_PLUGIN): $(RUNTIME_GO) $(GATEWAY_PLUGIN_SRC)
 	go build -o $@ $(GATEWAY_PLUGIN_PKG)
 
-$(SWAGGER_PLUGIN): $(OPTIONS_GO) $(SWAGGER_PLUGIN_SRC)
+$(SWAGGER_PLUGIN): $(SWAGGER_PLUGIN_SRC)
 	go build -o $@ $(SWAGGER_PLUGIN_PKG)
 
 $(EXAMPLE_SVCSRCS): $(GO_PLUGIN) $(EXAMPLES)
@@ -137,7 +133,6 @@ lint:
 clean distclean:
 	rm -f $(GATEWAY_PLUGIN)
 realclean: distclean
-	rm -f $(OPTIONS_GO)
 	rm -f $(EXAMPLE_SVCSRCS) $(EXAMPLE_DEPSRCS)
 	rm -f $(EXAMPLE_GWSRCS)
 	rm -f $(EXAMPLE_SWAGGERSRCS)

README.md

@@ -89,8 +89,8 @@ Make sure that your `$GOPATH/bin` is in your `$PATH`.
    ```sh
    protoc -I/usr/local/include -I. \
      -I$GOPATH/src \
-     -I$GOPATH/src/github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis \
-     --go_out=Mgoogle/api/annotations.proto=github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api,plugins=grpc:. \
+     -I$GOPATH/src/github.com/googleapis/googleapis/ \
+     --go_out=,plugins=grpc:. \
      path/to/your_service.proto
    ```
 

protoc-gen-grpc-gateway/descriptor/services.go

@@ -8,7 +8,7 @@ import (
 	"github.com/golang/protobuf/proto"
 	descriptor "github.com/golang/protobuf/protoc-gen-go/descriptor"
 	"github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/httprule"
-	options "github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api"
+	options "google.golang.org/genproto/googleapis/api/annotations"
 )
 
 // loadServices registers services and their methods from "targetFile" to "r".

protoc-gen-grpc-gateway/gengateway/generator.go

@@ -13,7 +13,7 @@ import (
 	plugin "github.com/golang/protobuf/protoc-gen-go/plugin"
 	"github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/descriptor"
 	gen "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/generator"
-	options "github.com/grpc-ecosystem/grpc-gateway/third_party/googleapis/google/api"
+	options "google.golang.org/genproto/googleapis/api/annotations"
 )
 
 var (

protoc-gen-grpc-gateway/httprule/parse.go

@@ -92,7 +92,7 @@ func tokenize(path string) (tokens []string, verb string) {
 	return tokens, verb
 }
 
-// parser is a parser of the template syntax defined in third_party/googleapis/google/api/httprule.proto.
+// parser is a parser of the template syntax defined in github.com/googleapis/googleapis/google/api/http.proto.
 type parser struct {
 	tokens   []string
 	accepted []string

runtime/pattern.go

@@ -21,7 +21,7 @@ type op struct {
 	operand int
 }
 
-// Pattern is a template pattern of http request paths defined in third_party/googleapis/google/api/http.proto.
+// Pattern is a template pattern of http request paths defined in github.com/googleapis/googleapis/google/api/http.proto.
 type Pattern struct {
 	// ops is a list of operations
 	ops []op

third_party/googleapis/google/api/annotations.proto

@@ -19,9 +19,11 @@ package google.api;
 import "google/api/http.proto";
 import "google/protobuf/descriptor.proto";
 
+option go_package = "google.golang.org/genproto/googleapis/api/annotations;annotations";
 option java_multiple_files = true;
 option java_outer_classname = "AnnotationsProto";
 option java_package = "com.google.api";
+option objc_class_prefix = "GAPI";
 
 extend google.protobuf.MethodOptions {
   // See `HttpRule`.