[breaking] Fix gRPC streaming synchronization on close (should fix missing lines at the end of compile) (#1787)

* Correctly synchronize streams (Fix: some lines cut-off at the end of the output)

* Updated docs

* Fixed go-docs

* Use pipes with channel buffering to smooth out communications

* Update docs/UPGRADING.md

Co-authored-by: per1234 <accounts@perglass.com>

Co-authored-by: per1234 <accounts@perglass.com>

Author: cmaglie

.licenses/go/github.com/djherbis/buffer.dep.yml

@@ -0,0 +1,32 @@
+---
+name: github.com/djherbis/buffer
+version: v1.1.0
+type: go
+summary: Package buffer implements a series of Buffers which can be composed to implement
+  complicated buffering strategies
+homepage: https://pkg.go.dev/github.com/djherbis/buffer
+license: mit
+licenses:
+- sources: LICENSE.txt
+  text: |
+    The MIT License (MIT)
+
+    Copyright (c) 2015 Dustin H
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+    the Software, and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+notices: []

.licenses/go/github.com/djherbis/buffer/limio.dep.yml

@@ -0,0 +1,31 @@
+---
+name: github.com/djherbis/buffer/limio
+version: v1.1.0
+type: go
+summary: 
+homepage: https://pkg.go.dev/github.com/djherbis/buffer/limio
+license: mit
+licenses:
+- sources: buffer@v1.1.0/LICENSE.txt
+  text: |
+    The MIT License (MIT)
+
+    Copyright (c) 2015 Dustin H
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+    the Software, and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+notices: []

.licenses/go/github.com/djherbis/buffer/wrapio.dep.yml

@@ -0,0 +1,31 @@
+---
+name: github.com/djherbis/buffer/wrapio
+version: v1.1.0
+type: go
+summary: 
+homepage: https://pkg.go.dev/github.com/djherbis/buffer/wrapio
+license: mit
+licenses:
+- sources: buffer@v1.1.0/LICENSE.txt
+  text: |
+    The MIT License (MIT)
+
+    Copyright (c) 2015 Dustin H
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+    the Software, and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+notices: []

.licenses/go/github.com/djherbis/nio/v3.dep.yml

@@ -0,0 +1,31 @@
+---
+name: github.com/djherbis/nio/v3
+version: v3.0.1
+type: go
+summary: Package nio provides a few buffered io primitives.
+homepage: https://pkg.go.dev/github.com/djherbis/nio/v3
+license: mit
+licenses:
+- sources: LICENSE.txt
+  text: |
+    The MIT License (MIT)
+
+    Copyright (c) 2015 Dustin H
+
+    Permission is hereby granted, free of charge, to any person obtaining a copy of
+    this software and associated documentation files (the "Software"), to deal in
+    the Software without restriction, including without limitation the rights to
+    use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+    the Software, and to permit persons to whom the Software is furnished to do so,
+    subject to the following conditions:
+
+    The above copyright notice and this permission notice shall be included in all
+    copies or substantial portions of the Software.
+
+    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+    IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+    FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+    COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+    IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+    CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+notices: []

arduino/discovery/discovery_client/go.sum

@@ -77,6 +77,8 @@ github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ3
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/djherbis/buffer v1.1.0/go.mod h1:VwN8VdFkMY0DCALdY8o00d3IZ6Amz/UNVMWcSaJT44o=
+github.com/djherbis/nio/v3 v3.0.1/go.mod h1:Ng4h80pbZFMla1yKzm61cF0tqqilXZYrogmWgZxOcmg=
 github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=

arduino/utils/stream.go

@@ -16,15 +16,24 @@
 package utils
 
 import (
+	"context"
 	"io"
 	"time"
+
+	"github.com/djherbis/buffer"
+	"github.com/djherbis/nio/v3"
 )
 
 // FeedStreamTo creates a pipe to pass data to the writer function.
-// FeedStreamTo returns the io.Writer side of the pipe, on which the user can write data
-func FeedStreamTo(writer func(data []byte)) io.Writer {
-	r, w := io.Pipe()
+// FeedStreamTo returns the io.WriteCloser side of the pipe, on which the user can write data.
+// The user must call Close() on the returned io.WriteCloser to release all the resources.
+// If needed, the context can be used to detect when all the data has been processed after
+// closing the writer.
+func FeedStreamTo(writer func(data []byte)) (io.WriteCloser, context.Context) {
+	ctx, cancel := context.WithCancel(context.Background())
+	r, w := nio.Pipe(buffer.New(32 * 1024))
 	go func() {
+		defer cancel()
 		data := make([]byte, 16384)
 		for {
 			if n, err := r.Read(data); err == nil {
@@ -41,7 +50,7 @@ func FeedStreamTo(writer func(data []byte)) io.Writer {
 			}
 		}
 	}()
-	return w
+	return w, ctx
 }
 
 // ConsumeStreamFrom creates a pipe to consume data from the reader function.

client_example/go.sum

@@ -74,6 +74,8 @@ github.com/creack/pty v1.1.7/go.mod h1:lj5s0c3V2DBrqTV7llrYr5NG6My20zk30Fl46Y7Do
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/djherbis/buffer v1.1.0/go.mod h1:VwN8VdFkMY0DCALdY8o00d3IZ6Amz/UNVMWcSaJT44o=
+github.com/djherbis/nio/v3 v3.0.1/go.mod h1:Ng4h80pbZFMla1yKzm61cF0tqqilXZYrogmWgZxOcmg=
 github.com/emirpasic/gods v1.12.0/go.mod h1:YfzfFFoVP/catgzJb4IKIqXjX78Ha8FMSDh3ymbK86o=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=

commands/daemon/daemon.go

@@ -266,15 +266,19 @@ func (s *ArduinoCoreServerImpl) LoadSketch(ctx context.Context, req *rpc.LoadSke
 
 // Compile FIXMEDOC
 func (s *ArduinoCoreServerImpl) Compile(req *rpc.CompileRequest, stream rpc.ArduinoCoreService_CompileServer) error {
+	outStream, outCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.CompileResponse{OutStream: data}) })
+	errStream, errCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.CompileResponse{ErrStream: data}) })
 	resp, err := compile.Compile(
-		stream.Context(), req,
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.CompileResponse{OutStream: data}) }),
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.CompileResponse{ErrStream: data}) }),
+		stream.Context(), req, outStream, errStream,
 		func(p *rpc.TaskProgress) { stream.Send(&rpc.CompileResponse{Progress: p}) },
 		false) // Set debug to false
+	outStream.Close()
+	errStream.Close()
 	if err != nil {
 		return convertErrorToRPCStatus(err)
 	}
+	<-outCtx.Done()
+	<-errCtx.Done()
 	return stream.Send(resp)
 }
 
@@ -345,27 +349,31 @@ func (s *ArduinoCoreServerImpl) PlatformList(ctx context.Context, req *rpc.Platf
 
 // Upload FIXMEDOC
 func (s *ArduinoCoreServerImpl) Upload(req *rpc.UploadRequest, stream rpc.ArduinoCoreService_UploadServer) error {
-	resp, err := upload.Upload(
-		stream.Context(), req,
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadResponse{OutStream: data}) }),
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadResponse{ErrStream: data}) }),
-	)
+	outStream, outCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadResponse{OutStream: data}) })
+	errStream, errCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadResponse{ErrStream: data}) })
+	resp, err := upload.Upload(stream.Context(), req, outStream, errStream)
+	outStream.Close()
+	errStream.Close()
 	if err != nil {
 		return convertErrorToRPCStatus(err)
 	}
+	<-outCtx.Done()
+	<-errCtx.Done()
 	return stream.Send(resp)
 }
 
 // UploadUsingProgrammer FIXMEDOC
 func (s *ArduinoCoreServerImpl) UploadUsingProgrammer(req *rpc.UploadUsingProgrammerRequest, stream rpc.ArduinoCoreService_UploadUsingProgrammerServer) error {
-	resp, err := upload.UsingProgrammer(
-		stream.Context(), req,
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadUsingProgrammerResponse{OutStream: data}) }),
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadUsingProgrammerResponse{ErrStream: data}) }),
-	)
+	outStream, outCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadUsingProgrammerResponse{OutStream: data}) })
+	errStream, errCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.UploadUsingProgrammerResponse{ErrStream: data}) })
+	resp, err := upload.UsingProgrammer(stream.Context(), req, outStream, errStream)
+	outStream.Close()
+	errStream.Close()
 	if err != nil {
 		return convertErrorToRPCStatus(err)
 	}
+	<-outCtx.Done()
+	<-errCtx.Done()
 	return stream.Send(resp)
 }
 
@@ -377,14 +385,16 @@ func (s *ArduinoCoreServerImpl) SupportedUserFields(ctx context.Context, req *rp
 
 // BurnBootloader FIXMEDOC
 func (s *ArduinoCoreServerImpl) BurnBootloader(req *rpc.BurnBootloaderRequest, stream rpc.ArduinoCoreService_BurnBootloaderServer) error {
-	resp, err := upload.BurnBootloader(
-		stream.Context(), req,
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.BurnBootloaderResponse{OutStream: data}) }),
-		utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.BurnBootloaderResponse{ErrStream: data}) }),
-	)
+	outStream, outCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.BurnBootloaderResponse{OutStream: data}) })
+	errStream, errCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&rpc.BurnBootloaderResponse{ErrStream: data}) })
+	resp, err := upload.BurnBootloader(stream.Context(), req, outStream, errStream)
+	outStream.Close()
+	errStream.Close()
 	if err != nil {
 		return convertErrorToRPCStatus(err)
 	}
+	<-outCtx.Done()
+	<-errCtx.Done()
 	return stream.Send(resp)
 }
 

commands/daemon/debug.go

@@ -50,6 +50,7 @@ func (s *DebugService) Debug(stream dbg.DebugService_DebugServer) error {
 	// Launch debug recipe attaching stdin and out to grpc streaming
 	signalChan := make(chan os.Signal)
 	defer close(signalChan)
+	outStream, outCtx := utils.FeedStreamTo(func(data []byte) { stream.Send(&dbg.DebugResponse{Data: data}) })
 	resp, debugErr := cmd.Debug(stream.Context(), req,
 		utils.ConsumeStreamFrom(func() ([]byte, error) {
 			command, err := stream.Recv()
@@ -58,13 +59,13 @@ func (s *DebugService) Debug(stream dbg.DebugService_DebugServer) error {
 			}
 			return command.GetData(), err
 		}),
-		utils.FeedStreamTo(func(data []byte) {
-			stream.Send(&dbg.DebugResponse{Data: data})
-		}),
+		outStream,
 		signalChan)
+	outStream.Close()
 	if debugErr != nil {
 		return debugErr
 	}
+	<-outCtx.Done()
 	return stream.Send(resp)
 }
 

docs/UPGRADING.md

@@ -2,6 +2,25 @@
 
 Here you can find a list of migration guides to handle breaking changes between releases of the CLI.
 
+## 0.25.0
+
+### go-lang function `github.com/arduino/arduino-cli/arduino/utils.FeedStreamTo` has been changed
+
+The function `FeedStreamTo` has been changed from:
+
+```go
+func FeedStreamTo(writer func(data []byte)) io.Writer
+```
+
+to
+
+```go
+func FeedStreamTo(writer func(data []byte)) (io.WriteCloser, context.Context)
+```
+
+The user must call the `Close` method on the returned `io.WriteClose` to correctly dispose the streaming channel. The
+context `Done()` method may be used to wait for the internal subroutines to complete.
+
 ## 0.24.0
 
 ### gRPC `Monitor` service and related gRPC calls have been removed