Add makefile and update protoc version

Use makefile and installation script for protoc.
Update protoc version to match containerd.

Signed-off-by: Derek McGowan <derek@mcg.dev>

.gitignore

@@ -1,4 +1,5 @@
 # Binaries for programs and plugins
+/bin/
 *.exe
 *.dll
 *.so
@@ -9,3 +10,4 @@
 
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
+coverage.txt

Makefile

@@ -0,0 +1,173 @@
+#   Copyright The containerd Authors.
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+
+#       http://www.apache.org/licenses/LICENSE-2.0
+
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+# Go command to use for build
+GO ?= go
+INSTALL ?= install
+
+# Root directory of the project (absolute path).
+ROOTDIR=$(dir $(abspath $(lastword $(MAKEFILE_LIST))))
+
+WHALE = "🇩"
+ONI = "👹"
+
+# Project binaries.
+COMMANDS=protoc-gen-go-ttrpc protoc-gen-gogottrpc
+
+ifdef BUILDTAGS
+    GO_BUILDTAGS = ${BUILDTAGS}
+endif
+GO_BUILDTAGS ?=
+GO_TAGS=$(if $(GO_BUILDTAGS),-tags "$(strip $(GO_BUILDTAGS))",)
+
+# Project packages.
+PACKAGES=$(shell $(GO) list ${GO_TAGS} ./... | grep -v /integration | grep -v /example)
+BINPACKAGES=$(addprefix ./cmd/,$(COMMANDS))
+
+#Replaces ":" (*nix), ";" (windows) with newline for easy parsing
+GOPATHS=$(shell echo ${GOPATH} | tr ":" "\n" | tr ";" "\n")
+
+TESTFLAGS_RACE=
+GO_BUILD_FLAGS=
+# See Golang issue re: '-trimpath': https://github.com/golang/go/issues/13809
+GO_GCFLAGS=$(shell				\
+	set -- ${GOPATHS};			\
+	echo "-gcflags=-trimpath=$${1}/src";	\
+	)
+
+BINARIES=$(addprefix bin/,$(COMMANDS))
+
+# Flags passed to `go test`
+TESTFLAGS ?= $(TESTFLAGS_RACE) $(EXTRA_TESTFLAGS)
+TESTFLAGS_PARALLEL ?= 8
+
+# Use this to replace `go test` with, for instance, `gotestsum`
+GOTEST ?= $(GO) test
+
+.PHONY: clean all AUTHORS build binaries test integration generate protos checkprotos coverage ci check help install vendor install-deps
+.DEFAULT: default
+
+# Forcibly set the default goal to all, in case an include above brought in a rule definition.
+.DEFAULT_GOAL := all
+
+all: binaries
+
+check: proto-fmt ## run all linters
+	@echo "$(WHALE) $@"
+	GOGC=75 golangci-lint run
+
+ci: check binaries checkprotos coverage # coverage-integration ## to be used by the CI
+
+AUTHORS: .mailmap .git/HEAD
+	git log --format='%aN <%aE>' | sort -fu > $@
+
+generate: protos
+	@echo "$(WHALE) $@"
+	@PATH="${ROOTDIR}/bin:${PATH}" $(GO) generate -x ${PACKAGES}
+
+protos: bin/protoc-gen-gogottrpc bin/protoc-gen-go-ttrpc ## generate protobuf
+	@echo "$(WHALE) $@"
+	@(PATH="${ROOTDIR}/bin:${PATH}" protobuild --quiet ${PACKAGES})
+
+check-protos: protos ## check if protobufs needs to be generated again
+	@echo "$(WHALE) $@"
+	@test -z "$$(git status --short | grep ".pb.go" | tee /dev/stderr)" || \
+		((git diff | cat) && \
+		(echo "$(ONI) please run 'make protos' when making changes to proto files" && false))
+
+check-api-descriptors: protos ## check that protobuf changes aren't present.
+	@echo "$(WHALE) $@"
+	@test -z "$$(git status --short | grep ".pb.txt" | tee /dev/stderr)" || \
+		((git diff $$(find . -name '*.pb.txt') | cat) && \
+		(echo "$(ONI) please run 'make protos' when making changes to proto files and check-in the generated descriptor file changes" && false))
+
+proto-fmt: ## check format of proto files
+	@echo "$(WHALE) $@"
+	@test -z "$$(find . -name '*.proto' -type f -exec grep -Hn -e "^ " {} \; | tee /dev/stderr)" || \
+		(echo "$(ONI) please indent proto files with tabs only" && false)
+	@test -z "$$(find . -name '*.proto' -type f -exec grep -Hn "Meta meta = " {} \; | grep -v '(gogoproto.nullable) = false' | tee /dev/stderr)" || \
+		(echo "$(ONI) meta fields in proto files must have option (gogoproto.nullable) = false" && false)
+
+build: ## build the go packages
+	@echo "$(WHALE) $@"
+	@$(GO) build ${DEBUG_GO_GCFLAGS} ${GO_GCFLAGS} ${GO_BUILD_FLAGS} ${EXTRA_FLAGS} ${PACKAGES}
+
+test: ## run tests, except integration tests and tests that require root
+	@echo "$(WHALE) $@"
+	@$(GOTEST) ${TESTFLAGS} ${PACKAGES}
+
+#integration: ## run integration tests
+#	@echo "$(WHALE) $@"
+#	@cd "${ROOTDIR}/integration" && $(GO) mod download && $(GOTEST) -v ${TESTFLAGS}  -parallel ${TESTFLAGS_PARALLEL} .
+
+benchmark: ## run benchmarks tests
+	@echo "$(WHALE) $@"
+	@$(GO) test ${TESTFLAGS} -bench . -run Benchmark
+
+FORCE:
+
+define BUILD_BINARY
+@echo "$(WHALE) $@"
+@$(GO) build ${DEBUG_GO_GCFLAGS} ${GO_GCFLAGS} ${GO_BUILD_FLAGS} -o $@ ${GO_TAGS}  ./$<
+endef
+
+# Build a binary from a cmd.
+bin/%: cmd/% FORCE
+	$(call BUILD_BINARY)
+
+binaries: $(BINARIES) ## build binaries
+	@echo "$(WHALE) $@"
+
+clean: ## clean up binaries
+	@echo "$(WHALE) $@"
+	@rm -f $(BINARIES)
+
+install: ## install binaries
+	@echo "$(WHALE) $@ $(BINPACKAGES)"
+	@$(GO) install $(BINPACKAGES)
+
+install-deps:
+	script/install-protobuf
+
+coverage: ## generate coverprofiles from the unit tests, except tests that require root
+	@echo "$(WHALE) $@"
+	@rm -f coverage.txt
+	@$(GO) test -i ${TESTFLAGS} ${PACKAGES} 2> /dev/null
+	@( for pkg in ${PACKAGES}; do \
+		$(GO) test ${TESTFLAGS} \
+			-cover \
+			-coverprofile=profile.out \
+			-covermode=atomic $$pkg || exit; \
+		if [ -f profile.out ]; then \
+			cat profile.out >> coverage.txt; \
+			rm profile.out; \
+		fi; \
+	done )
+
+vendor: ## ensure all the go.mod/go.sum files are up-to-date
+	@echo "$(WHALE) $@"
+	@$(GO) mod tidy
+	@$(GO) mod verify
+
+verify-vendor: ## verify if all the go.mod/go.sum files are up-to-date
+	@echo "$(WHALE) $@"
+	@$(GO) mod tidy
+	@$(GO) mod verify
+	@test -z "$$(git status --short | grep "go.sum" | tee /dev/stderr)" || \
+		((git diff | cat) && \
+		(echo "$(ONI) make sure to checkin changes after go mod tidy" && false))
+
+help: ## this help
+	@awk 'BEGIN {FS = ":.*?## "} /^[a-zA-Z_-]+:.*?## / {printf "\033[36m%-30s\033[0m %s\n", $$1, $$2}' $(MAKEFILE_LIST) | sort

example/example.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.27.1
-// 	protoc        v3.5.0
+// 	protoc        v3.11.4
 // source: github.com/containerd/ttrpc/example/example.proto
 
 package example

internal/test.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.27.1
-// 	protoc        v3.5.0
+// 	protoc        v3.11.4
 // source: github.com/containerd/ttrpc/test.proto
 
 package internal

request.pb.go

@@ -1,7 +1,7 @@
 // Code generated by protoc-gen-go. DO NOT EDIT.
 // versions:
 // 	protoc-gen-go v1.27.1
-// 	protoc        v3.5.0
+// 	protoc        v3.11.4
 // source: github.com/containerd/ttrpc/request.proto
 
 package ttrpc

script/install-protobuf

@@ -0,0 +1,60 @@
+#!/usr/bin/env bash
+
+#   Copyright The containerd Authors.
+
+#   Licensed under the Apache License, Version 2.0 (the "License");
+#   you may not use this file except in compliance with the License.
+#   You may obtain a copy of the License at
+
+#       http://www.apache.org/licenses/LICENSE-2.0
+
+#   Unless required by applicable law or agreed to in writing, software
+#   distributed under the License is distributed on an "AS IS" BASIS,
+#   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+#   See the License for the specific language governing permissions and
+#   limitations under the License.
+
+
+#
+# Downloads and installs protobuf
+#
+set -eu -o pipefail
+
+PROTOBUF_VERSION=3.11.4
+GOARCH=$(go env GOARCH)
+GOOS=$(go env GOOS)
+PROTOBUF_DIR=$(mktemp -d)
+
+case $GOARCH in
+
+arm64)
+	wget -O "$PROTOBUF_DIR/protobuf" "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protoc-$PROTOBUF_VERSION-linux-aarch64.zip"
+	unzip "$PROTOBUF_DIR/protobuf" -d /usr/local
+	;;
+
+amd64|386)
+	if [ "$GOOS" = windows ]; then
+		wget -O "$PROTOBUF_DIR/protobuf" "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protoc-$PROTOBUF_VERSION-win32.zip"
+	elif [ "$GOOS" = linux ]; then
+		wget -O "$PROTOBUF_DIR/protobuf" "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protoc-$PROTOBUF_VERSION-linux-x86_64.zip"
+	fi
+	unzip "$PROTOBUF_DIR/protobuf" -d /usr/local
+	;;
+
+ppc64le)
+	wget -O "$PROTOBUF_DIR/protobuf" "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protoc-$PROTOBUF_VERSION-linux-ppcle_64.zip"
+	unzip "$PROTOBUF_DIR/protobuf" -d /usr/local
+	;;
+*)
+	wget -O "$PROTOBUF_DIR/protobuf" "https://github.com/protocolbuffers/protobuf/releases/download/v$PROTOBUF_VERSION/protobuf-cpp-$PROTOBUF_VERSION.zip"
+	unzip "$PROTOBUF_DIR/protobuf" -d /usr/src/protobuf
+	cd "/usr/src/protobuf/protobuf-$PROTOBUF_VERSION"
+	./autogen.sh
+	./configure --disable-shared
+	make
+	make check
+	make install
+	ldconfig
+	;;
+esac
+rm -rf "$PROTOBUF_DIR"