mirror of
https://github.com/docker/compose.git
synced 2025-11-04 05:34:09 +01:00
62 lines
1.4 KiB
Go
62 lines
1.4 KiB
Go
/*
|
|
Copyright 2020 Docker Compose CLI 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.
|
|
*/
|
|
|
|
package streams
|
|
|
|
import (
|
|
"github.com/golang/protobuf/ptypes"
|
|
|
|
streamsv1 "github.com/docker/compose-cli/protos/streams/v1"
|
|
)
|
|
|
|
// IO implements an io.ReadWriter that forwards everything to the stream
|
|
type IO struct {
|
|
Stream *Stream
|
|
}
|
|
|
|
func (io *IO) Read(p []byte) (int, error) {
|
|
a, err := io.Stream.Recv()
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
var m streamsv1.BytesMessage
|
|
err = ptypes.UnmarshalAny(a, &m)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return copy(p, m.Value), nil
|
|
}
|
|
|
|
func (io *IO) Write(p []byte) (n int, err error) {
|
|
if len(p) == 0 {
|
|
return 0, nil
|
|
}
|
|
|
|
message := streamsv1.BytesMessage{
|
|
Type: streamsv1.IOStream_STDOUT,
|
|
Value: p,
|
|
}
|
|
|
|
m, err := ptypes.MarshalAny(&message)
|
|
if err != nil {
|
|
return 0, err
|
|
}
|
|
|
|
return len(message.Value), io.Stream.SendMsg(m)
|
|
}
|