Replace travis with CircleCI for easier testing

.circleci/Dockerfile

@@ -0,0 +1,36 @@
+FROM golang:latest
+
+## Warm apt cache
+RUN apt-get update
+
+# Install swagger-codegen
+ENV SWAGGER_CODEGEN_VERSION=2.2.2
+RUN apt-get install -y openjdk-8-jre wget && \
+    wget http://repo1.maven.org/maven2/io/swagger/swagger-codegen-cli/${SWAGGER_CODEGEN_VERSION}/swagger-codegen-cli-${SWAGGER_CODEGEN_VERSION}.jar \
+    -O /usr/local/bin/swagger-codegen-cli.jar && \
+    apt-get remove -y wget
+ENV SWAGGER_CODEGEN="java -jar /usr/local/bin/swagger-codegen-cli.jar"
+
+# Install protoc
+ENV PROTOC_VERSION=3.1.0
+RUN apt-get install -y wget unzip && \
+    wget https://github.com/google/protobuf/releases/download/v${PROTOC_VERSION}/protoc-${PROTOC_VERSION}-linux-x86_64.zip \
+    -O /protoc-${PROTOC_VERSION}-linux-x86_64.zip && \
+    unzip /protoc-${PROTOC_VERSION}-linux-x86_64.zip -d /usr/local/ && \
+    rm -f /protoc-${PROTOC_VERSION}-linux-x86_64.zip && \
+    apt-get remove -y unzip wget
+
+# Install node
+ENV NODE_VERSION=v6.1
+RUN apt-get install -y wget bzip2 && \
+    wget -qO- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash && \
+    apt-get remove -y wget
+
+# Install dep
+RUN apt-get install -y wget && \
+    wget -qO- https://raw.githubusercontent.com/golang/dep/master/install.sh | sh && \
+    apt-get remove -y wget
+
+# Clean up
+RUN apt-get autoremove -y && \
+    rm -rf /var/lib/apt/lists/*

.circleci/README.md

@@ -0,0 +1,22 @@
+## gRPC-Gateway CI testing setup
+
+Contained within is the CI test setup for the Gateway. It runs on Circle CI.
+
+### I want to regenerate the files after making changes!
+
+Great, it should be as simple as thus (run from the root of the directory):
+
+```bash
+$ docker run -v $(pwd):/go/src/github.com/grpc-ecosystem/grpc-gateway --rm jfbrandhorst/grpc-gateway-build-env \
+    /bin/bash -c 'cd /go/src/github.com/grpc-ecosystem/grpc-gateway && \
+        make realclean && \
+        make examples SWAGGER_CODEGEN="${SWAGGER_CODEGEN}"'
+```
+
+If this has resulted in some file changes in the repo, please ensure you check those in with your merge request.
+
+### Whats up with the Dockerfile?
+
+The `Dockerfile` in this folder is used as the build environment when regenerating the files (see above).
+The canonical repository for this Dockerfile is `jfbrandhorst/grpc-gateway-build-env`. Please request access
+before attempting to make any changes to the Dockerfile.

.circleci/config.yml

@@ -0,0 +1,97 @@
+version: 2
+jobs:
+  build:
+    docker:
+      - image: "golang:latest"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+      - run: dep ensure --vendor-only
+      - run: go build ./...
+  test:
+    docker:
+      - image: "golang:latest"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    environment:
+      GLOG_logtostderr: "1"
+    steps:
+      - checkout
+      - run: curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+      - run: dep ensure --vendor-only
+      - run: go test -race -coverprofile=coverage.txt ./...
+      - run: bash <(curl -s https://codecov.io/bash)
+  node_test:
+    docker:
+      - image: "jfbrandhorst/grpc-gateway-build-env"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: >
+          . $HOME/.nvm/nvm.sh &&
+          cd examples/browser &&
+          npm install gulp-cli &&
+          npm install &&
+          ./node_modules/.bin/gulp
+  generate:
+    docker:
+      - image: "jfbrandhorst/grpc-gateway-build-env"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: make realclean
+      - run: make examples SWAGGER_CODEGEN="${SWAGGER_CODEGEN}" # Set in Docker image
+      - run: git diff --exit-code
+  lint:
+    docker:
+      - image: "golang:latest"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: curl https://raw.githubusercontent.com/golang/dep/master/install.sh | sh
+      - run: dep ensure --vendor-only
+      - run: go get github.com/golang/lint/golint
+      - run: make lint
+  bazel_build:
+    docker:
+      - image: "l.gcr.io/google/bazel:latest"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: >
+          bazel
+            --batch
+            --output_base=$HOME/.cache/_grpc_gateway_bazel
+            --host_jvm_args=-Xmx500m
+            --host_jvm_args=-Xms500m
+            build
+            --local_resources=400,1,1.0
+            //...
+  bazel_test:
+    docker:
+      - image: "l.gcr.io/google/bazel:latest"
+    working_directory: /go/src/github.com/grpc-ecosystem/grpc-gateway
+    steps:
+      - checkout
+      - run: >
+          bazel
+            --batch
+            --output_base=$HOME/.cache/_grpc_gateway_bazel
+            --host_jvm_args=-Xmx500m
+            --host_jvm_args=-Xms500m
+            test
+            --local_resources=400,1,1.0
+            --test_output=errors
+            --features=race
+            //...
+workflows:
+  version: 2
+  all:
+    jobs:
+      - build
+      - test
+      - node_test
+      - generate
+      - lint
+      - bazel_build
+      - bazel_test

CONTRIBUTING.md

@@ -18,3 +18,16 @@ with us through the issue tracker.
 
 ### Code reviews
 All submissions, including submissions by project members, require review.
+
+### I want to regenerate the files after making changes!
+
+Great, it should be as simple as thus (run from the root of the directory):
+
+```bash
+$ docker run -v $(pwd):/go/src/github.com/grpc-ecosystem/grpc-gateway --rm jfbrandhorst/grpc-gateway-build-env \
+    /bin/bash -c 'cd /go/src/github.com/grpc-ecosystem/grpc-gateway && \
+        make realclean && \
+        make examples SWAGGER_CODEGEN="${SWAGGER_CODEGEN}"'
+```
+
+If this has resulted in some file changes in the repo, please ensure you check those in with your merge request.

Makefile

@@ -127,8 +127,7 @@ generate: $(RUNTIME_GO)
 
 $(GO_PLUGIN):
 	dep ensure -vendor-only
-	go install ./vendor/$(GO_PLUGIN_PKG)
-	go build -o $@ $(GO_PLUGIN_PKG)
+	go build -o $@ ./vendor/$(GO_PLUGIN_PKG)
 
 $(RUNTIME_GO): $(RUNTIME_PROTO) $(GO_PLUGIN)
 	protoc -I $(PROTOC_INC_PATH) --plugin=$(GO_PLUGIN) -I $(GOPATH)/src/$(GO_PTYPES_ANY_PKG) -I. --go_out=$(PKGMAP):. $(RUNTIME_PROTO)