mirror of https://github.com/harness/drone.git
112 lines
2.1 KiB
Go
112 lines
2.1 KiB
Go
// Copyright 2023 Harness, Inc.
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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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package gitrpc
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import (
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"bytes"
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"context"
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"errors"
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"fmt"
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"io"
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"github.com/harness/gitness/gitrpc/rpc"
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"github.com/rs/zerolog/log"
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)
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const (
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// TODO: this should be configurable
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FileTransferChunkSize = 1024
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)
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type File struct {
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Path string
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Content []byte
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}
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func uploadFile(
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ctx context.Context,
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file File,
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chunkSize int,
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send func(*rpc.FileUpload) error,
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) error {
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log := log.Ctx(ctx)
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log.Info().Msgf("start sending %v", file.Path)
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// send filename message
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header := &rpc.FileUpload{
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Data: &rpc.FileUpload_Header{
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Header: &rpc.FileUploadHeader{
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Path: file.Path,
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},
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},
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}
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if err := send(header); err != nil {
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return fmt.Errorf("failed to send file upload header: %w", err)
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}
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err := sendChunks(file.Content, chunkSize, func(c *rpc.Chunk) error {
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return send(&rpc.FileUpload{
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Data: &rpc.FileUpload_Chunk{
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Chunk: c,
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},
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})
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})
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if err != nil {
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return fmt.Errorf("failed to send file data: %w", err)
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}
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log.Info().Msgf("completed sending %v", file.Path)
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return nil
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}
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func sendChunks(
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content []byte,
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chunkSize int,
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send func(*rpc.Chunk) error) error {
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buffer := make([]byte, chunkSize)
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reader := bytes.NewReader(content)
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for {
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n, err := reader.Read(buffer)
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if errors.Is(err, io.EOF) {
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err = send(&rpc.Chunk{
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Eof: true,
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Data: buffer[:n],
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})
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if err != nil {
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return err
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}
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break
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}
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if err != nil {
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return fmt.Errorf("cannot read buffer: %w", err)
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}
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err = send(&rpc.Chunk{
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Eof: false,
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Data: buffer[:n],
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})
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if err != nil {
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return err
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}
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}
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return nil
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}
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