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proto: Allow reproducible proto generation.

Browse source 
Current way of setting prometheus project to generate repo is tedious.
If you just go install packages described in README.md
it ends up with those (non buildable code)
```
../../../prompb/remote.pb.go:61:34: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:109:33: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:164:34: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:214:27: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:284:33: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
```
The issue is that the guide presented in proto folder is asking to
install some GO packages. It does not mention from what version and
there is strong mismatch between those used to generate proto and those
that are vendored and used to run the code later...
The particular outdated packages in vendor are:
`github.com/gogo/protobuf` and `google.golang.org/grpc`.

Just updating vendor would be not enough, as it would only tmp fix.
I propose adding script that will parse version from vendor.json and install correct version.

Changes:
- Added script that uses packages in *exactly* the same version the Go code is build against later.
- Regenerated proto with those pinned deps.
- Updated REAMDE.md
- Added `make proto`Current way of setting prometheus project to generate code from proto files is tedious.
If you just go install packages described in README.md, it ends up with this (non buildable code)
```
../../../prompb/remote.pb.go:61:34: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:109:33: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:164:34: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:214:27: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
../../../prompb/remote.pb.go:284:33: undefined: "github.com/prometheus/prometheus/vendor/github.com/gogo/protobuf/proto".InternalMessageInfo
```
The issue is that the guide presented in proto folder is asking to install some GO packages. It does not mention from what version and there is strong mismatch between those used to generate proto and those that are vendored and used to run the code later...
The particular outdated packages in vendor are:
`github.com/gogo/protobuf` and `google.golang.org/grpc`.

Just updating vendor would be not enough, as it would only tmp fix.
I propose adding script that will parse version from vendor.json and install correct version.

Changes:
- Added script that uses packages in *exactly* the same version the Go code is build against later.
- Regenerated proto with those pinned deps.
- Updated REAMDE.md
- Added `make proto`

Signed-off-by: Bartek Plotka <bwplotka@gmail.com>
This commit is contained in:
Bartek Plotka 2018-09-05 20:04:44 +01:00 committed by Bartek Plotka
parent ba7eb733e8
commit c3434a39b7
7 changed files with 48 additions and 88 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
Makefile.common
View file

@ -123,6 +123,11 @@ common-docker-tag-latest:
promu:
GOOS= GOARCH= $(GO) get -u github.com/prometheus/promu
.PHONY: proto
proto:
@echo ">> generating code from proto files"
@./scripts/genproto.sh
.PHONY: $(STATICCHECK)
$(STATICCHECK):
GOOS= GOARCH= $(GO) get -u honnef.co/go/tools/cmd/staticcheck

11
prompb/README.md
View file

@ -2,13 +2,8 @@ The compiled protobufs are version controlled and you won't normally need to
re-compile them when building Prometheus.
If however you have modified the defs and do need to re-compile, run
`./scripts/genproto.sh` from the parent dir.
`make proto` from the parent dir.
In order for the script to run, you'll need `protoc` (version 3.5) in your
PATH, and the following Go packages installed:
In order for the script to run, you'll need `protoc` (version 3.5.1) in your
PATH.
- github.com/gogo/protobuf
- github.com/gogo/protobuf/protoc-gen-gogofast
- github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway/
- github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger
- golang.org/x/tools/cmd/goimports

18
prompb/remote.pb.go
View file

@ -330,24 +330,6 @@ func (m *QueryResult) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func encodeFixed64Remote(dAtA []byte, offset int, v uint64) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
dAtA[offset+4] = uint8(v >> 32)
dAtA[offset+5] = uint8(v >> 40)
dAtA[offset+6] = uint8(v >> 48)
dAtA[offset+7] = uint8(v >> 56)
return offset + 8
}
func encodeFixed32Remote(dAtA []byte, offset int, v uint32) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
return offset + 4
}
func encodeVarintRemote(dAtA []byte, offset int, v uint64) int {
for v >= 1<<7 {
dAtA[offset] = uint8(v&0x7f | 0x80)

42
prompb/rpc.pb.go
View file

@ -11,12 +11,10 @@ import _ "google.golang.org/genproto/googleapis/api/annotations"
import time "time"
import (
context "golang.org/x/net/context"
grpc "google.golang.org/grpc"
)
import context "golang.org/x/net/context"
import grpc "google.golang.org/grpc"
import github_com_gogo_protobuf_types "github.com/gogo/protobuf/types"
import types "github.com/gogo/protobuf/types"
import io "io"
@ -338,8 +336,8 @@ func (m *SeriesDeleteRequest) MarshalTo(dAtA []byte) (int, error) {
if m.MinTime != nil {
dAtA[i] = 0xa
i++
i = encodeVarintRpc(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(*m.MinTime)))
n1, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.MinTime, dAtA[i:])
i = encodeVarintRpc(dAtA, i, uint64(types.SizeOfStdTime(*m.MinTime)))
n1, err := types.StdTimeMarshalTo(*m.MinTime, dAtA[i:])
if err != nil {
return 0, err
}
@ -348,8 +346,8 @@ func (m *SeriesDeleteRequest) MarshalTo(dAtA []byte) (int, error) {
if m.MaxTime != nil {
dAtA[i] = 0x12
i++
i = encodeVarintRpc(dAtA, i, uint64(github_com_gogo_protobuf_types.SizeOfStdTime(*m.MaxTime)))
n2, err := github_com_gogo_protobuf_types.StdTimeMarshalTo(*m.MaxTime, dAtA[i:])
i = encodeVarintRpc(dAtA, i, uint64(types.SizeOfStdTime(*m.MaxTime)))
n2, err := types.StdTimeMarshalTo(*m.MaxTime, dAtA[i:])
if err != nil {
return 0, err
}
@ -388,24 +386,6 @@ func (m *SeriesDeleteResponse) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func encodeFixed64Rpc(dAtA []byte, offset int, v uint64) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
dAtA[offset+4] = uint8(v >> 32)
dAtA[offset+5] = uint8(v >> 40)
dAtA[offset+6] = uint8(v >> 48)
dAtA[offset+7] = uint8(v >> 56)
return offset + 8
}
func encodeFixed32Rpc(dAtA []byte, offset int, v uint32) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
return offset + 4
}
func encodeVarintRpc(dAtA []byte, offset int, v uint64) int {
for v >= 1<<7 {
dAtA[offset] = uint8(v&0x7f | 0x80)
@ -450,11 +430,11 @@ func (m *SeriesDeleteRequest) Size() (n int) {
var l int
_ = l
if m.MinTime != nil {
l = github_com_gogo_protobuf_types.SizeOfStdTime(*m.MinTime)
l = types.SizeOfStdTime(*m.MinTime)
n += 1 + l + sovRpc(uint64(l))
}
if m.MaxTime != nil {
l = github_com_gogo_protobuf_types.SizeOfStdTime(*m.MaxTime)
l = types.SizeOfStdTime(*m.MaxTime)
n += 1 + l + sovRpc(uint64(l))
}
if len(m.Matchers) > 0 {
@ -792,7 +772,7 @@ func (m *SeriesDeleteRequest) Unmarshal(dAtA []byte) error {
if m.MinTime == nil {
m.MinTime = new(time.Time)
}
if err := github_com_gogo_protobuf_types.StdTimeUnmarshal(m.MinTime, dAtA[iNdEx:postIndex]); err != nil {
if err := types.StdTimeUnmarshal(m.MinTime, dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex
@ -825,7 +805,7 @@ func (m *SeriesDeleteRequest) Unmarshal(dAtA []byte) error {
if m.MaxTime == nil {
m.MaxTime = new(time.Time)
}
if err := github_com_gogo_protobuf_types.StdTimeUnmarshal(m.MaxTime, dAtA[iNdEx:postIndex]); err != nil {
if err := types.StdTimeUnmarshal(m.MaxTime, dAtA[iNdEx:postIndex]); err != nil {
return err
}
iNdEx = postIndex

2
prompb/rpc.pb.gw.go
View file

@ -58,7 +58,7 @@ func request_Admin_DeleteSeries_0(ctx context.Context, marshaler runtime.Marshal
var protoReq SeriesDeleteRequest
var metadata runtime.ServerMetadata
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil && err != io.EOF {
if err := marshaler.NewDecoder(req.Body).Decode(&protoReq); err != nil {
return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
}

32
prompb/types.pb.go
View file

@ -7,6 +7,8 @@ import proto "github.com/gogo/protobuf/proto"
import fmt "fmt"
import math "math"
import binary "encoding/binary"
import io "io"
// Reference imports to suppress errors if they are not otherwise used.
@ -229,7 +231,8 @@ func (m *Sample) MarshalTo(dAtA []byte) (int, error) {
if m.Value != 0 {
dAtA[i] = 0x9
i++
i = encodeFixed64Types(dAtA, i, uint64(math.Float64bits(float64(m.Value))))
binary.LittleEndian.PutUint64(dAtA[i:], uint64(math.Float64bits(float64(m.Value))))
i += 8
}
if m.Timestamp != 0 {
dAtA[i] = 0x10
@ -415,24 +418,6 @@ func (m *ReadHints) MarshalTo(dAtA []byte) (int, error) {
return i, nil
}
func encodeFixed64Types(dAtA []byte, offset int, v uint64) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
dAtA[offset+4] = uint8(v >> 32)
dAtA[offset+5] = uint8(v >> 40)
dAtA[offset+6] = uint8(v >> 48)
dAtA[offset+7] = uint8(v >> 56)
return offset + 8
}
func encodeFixed32Types(dAtA []byte, offset int, v uint32) int {
dAtA[offset] = uint8(v)
dAtA[offset+1] = uint8(v >> 8)
dAtA[offset+2] = uint8(v >> 16)
dAtA[offset+3] = uint8(v >> 24)
return offset + 4
}
func encodeVarintTypes(dAtA []byte, offset int, v uint64) int {
for v >= 1<<7 {
dAtA[offset] = uint8(v&0x7f | 0x80)
@ -584,15 +569,8 @@ func (m *Sample) Unmarshal(dAtA []byte) error {
if (iNdEx + 8) > l {
return io.ErrUnexpectedEOF
}
v = uint64(binary.LittleEndian.Uint64(dAtA[iNdEx:]))
iNdEx += 8
v = uint64(dAtA[iNdEx-8])
v |= uint64(dAtA[iNdEx-7]) << 8
v |= uint64(dAtA[iNdEx-6]) << 16
v |= uint64(dAtA[iNdEx-5]) << 24
v |= uint64(dAtA[iNdEx-4]) << 32
v |= uint64(dAtA[iNdEx-3]) << 40
v |= uint64(dAtA[iNdEx-2]) << 48
v |= uint64(dAtA[iNdEx-1]) << 56
m.Value = float64(math.Float64frombits(v))
case 2:
if wireType != 0 {

26
scripts/genproto.sh
View file

@ -10,11 +10,31 @@ if ! [[ "$0" =~ "scripts/genproto.sh" ]]; then
exit 255
fi
if ! [[ $(protoc --version) =~ "3.5" ]]; then
echo "could not find protoc 3.5.x, is it installed + in PATH?"
if ! [[ $(protoc --version) =~ "3.5.1" ]]; then
echo "could not find protoc 3.5.1, is it installed + in PATH?"
exit 255
fi
# Exact version of plugins to build.
PROTOC_GEN_GOGOFAST_SHA="971cbfd2e72b513a28c74af7462aee0800248d69"
PROTOC_GEN_GRPC_ECOSYSTEM_SHA="e4b8a938efae14de11fd97311e873e989896348c"
echo "installing plugins"
go install "golang.org/x/tools/cmd/goimports"
go get -d -u "github.com/gogo/protobuf/protoc-gen-gogo"
pushd ${GOPATH}/src/github.com/gogo/protobuf
git reset --hard "${PROTOC_GEN_GOGOFAST_SHA}"
go install "github.com/gogo/protobuf/protoc-gen-gogofast"
popd
go get -d -u "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway"
go get -d -u "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger"
pushd ${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway
git reset --hard "${PROTOC_GEN_GRPC_ECOSYSTEM_SHA}"
go install "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-grpc-gateway"
go install "github.com/grpc-ecosystem/grpc-gateway/protoc-gen-swagger"
popd
PROM_ROOT="${GOPATH}/src/github.com/prometheus/prometheus"
PROM_PATH="${PROM_ROOT}/prompb"
GOGOPROTO_ROOT="${GOPATH}/src/github.com/gogo/protobuf"
@ -40,7 +60,7 @@ for dir in ${DIRS}; do
rpc.proto
mv ../documentation/dev/api/rpc.swagger.json ../documentation/dev/api/swagger.json
sed -i.bak -E 's/import _ \"gogoproto\"//g' *.pb.go
sed -i.bak -E 's/import _ \"github.com\/gogo\/protobuf\/gogoproto\"//g' *.pb.go
sed -i.bak -E 's/import _ \"google\/protobuf\"//g' *.pb.go
sed -i.bak -E 's/golang\/protobuf/gogo\/protobuf/g' *.go
rm -f *.bak