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92 lines
2.9 KiB
Bash
92 lines
2.9 KiB
Bash
#!/bin/bash
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# Copyright 2017 The Kubernetes Authors.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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set -o errexit
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set -o nounset
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set -o pipefail
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# The root of the build/dist directory
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KUBE_ROOT="$(cd "$(dirname "${BASH_SOURCE}")/../.." && pwd -P)"
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source "${KUBE_ROOT}/hack/lib/init.sh"
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# Generates $1/api.pb.go from the protobuf file $1/api.proto
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# and formats it correctly
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# $1: Full path to the directory where the api.proto file is
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function kube::protoc::generate_proto() {
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kube::golang::setup_env
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local bins=(
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vendor/k8s.io/code-generator/cmd/go-to-protobuf/protoc-gen-gogo
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)
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make -C "${KUBE_ROOT}" WHAT="${bins[*]}"
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kube::protoc::check_protoc
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local package=${1}
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kube::protoc::protoc ${package}
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kube::protoc::format ${package}
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}
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# Checks that the current protoc version is at least version 3.0.0-beta1
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# exit 1 if it's not the case
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function kube::protoc::check_protoc() {
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if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3."* ]]; then
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echo "Generating protobuf requires protoc 3.0.0-beta1 or newer. Please download and"
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echo "install the platform appropriate Protobuf package for your OS: "
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echo
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echo " https://github.com/google/protobuf/releases"
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echo
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echo "WARNING: Protobuf changes are not being validated"
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exit 1
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fi
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}
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# Generates $1/api.pb.go from the protobuf file $1/api.proto
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# $1: Full path to the directory where the api.proto file is
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function kube::protoc::protoc() {
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local package=${1}
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gogopath=$(dirname $(kube::util::find-binary "protoc-gen-gogo"))
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PATH="${gogopath}:${PATH}" protoc \
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--proto_path="${package}" \
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--proto_path="${KUBE_ROOT}/vendor" \
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--gogo_out=plugins=grpc:${package} ${package}/api.proto
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}
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# Formats $1/api.pb.go, adds the boilerplate comments and run gofmt on it
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# $1: Full path to the directory where the api.proto file is
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function kube::protoc::format() {
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local package=${1}
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# Update boilerplate for the generated file.
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echo "$(cat hack/boilerplate/boilerplate.go.txt ${package}/api.pb.go)" > ${package}/api.pb.go
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sed -i".bak" "s/Copyright YEAR/Copyright $(date '+%Y')/g" ${package}/api.pb.go
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# Run gofmt to clean up the generated code.
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kube::golang::verify_go_version
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gofmt -l -s -w ${package}/api.pb.go
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}
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# Compares the contents of $1 and $2
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# Echo's $3 in case of error and exits 1
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function kube::protoc::diff() {
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local ret=0
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diff -I "gzipped FileDescriptorProto" -I "0x" -Naupr ${1} ${2} || ret=$?
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if [[ $ret -ne 0 ]]; then
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echo ${3}
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exit 1
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fi
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}
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