2021-02-22 17:27:13 +05:30
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package gitaly
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import (
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"context"
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"fmt"
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"io"
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2021-09-04 01:27:46 +05:30
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"gitlab.com/gitlab-org/gitaly/v14/proto/go/gitalypb"
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"gitlab.com/gitlab-org/gitaly/v14/streamio"
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2021-02-22 17:27:13 +05:30
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)
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type SmartHTTPClient struct {
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gitalypb.SmartHTTPServiceClient
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}
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func (client *SmartHTTPClient) InfoRefsResponseReader(ctx context.Context, repo *gitalypb.Repository, rpc string, gitConfigOptions []string, gitProtocol string) (io.Reader, error) {
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rpcRequest := &gitalypb.InfoRefsRequest{
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Repository: repo,
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GitConfigOptions: gitConfigOptions,
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GitProtocol: gitProtocol,
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}
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switch rpc {
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case "git-upload-pack":
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stream, err := client.InfoRefsUploadPack(ctx, rpcRequest)
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return infoRefsReader(stream), err
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case "git-receive-pack":
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stream, err := client.InfoRefsReceivePack(ctx, rpcRequest)
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return infoRefsReader(stream), err
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default:
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return nil, fmt.Errorf("InfoRefsResponseWriterTo: Unsupported RPC: %q", rpc)
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}
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}
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type infoRefsClient interface {
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Recv() (*gitalypb.InfoRefsResponse, error)
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}
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func infoRefsReader(stream infoRefsClient) io.Reader {
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return streamio.NewReader(func() ([]byte, error) {
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resp, err := stream.Recv()
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return resp.GetData(), err
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})
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}
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func (client *SmartHTTPClient) ReceivePack(ctx context.Context, repo *gitalypb.Repository, glId string, glUsername string, glRepository string, gitConfigOptions []string, clientRequest io.Reader, clientResponse io.Writer, gitProtocol string) error {
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stream, err := client.PostReceivePack(ctx)
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if err != nil {
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return err
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}
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rpcRequest := &gitalypb.PostReceivePackRequest{
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Repository: repo,
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GlId: glId,
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GlUsername: glUsername,
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GlRepository: glRepository,
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GitConfigOptions: gitConfigOptions,
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GitProtocol: gitProtocol,
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}
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if err := stream.Send(rpcRequest); err != nil {
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return fmt.Errorf("initial request: %v", err)
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}
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numStreams := 2
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errC := make(chan error, numStreams)
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go func() {
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rr := streamio.NewReader(func() ([]byte, error) {
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response, err := stream.Recv()
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return response.GetData(), err
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})
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_, err := io.Copy(clientResponse, rr)
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errC <- err
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}()
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go func() {
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sw := streamio.NewWriter(func(data []byte) error {
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return stream.Send(&gitalypb.PostReceivePackRequest{Data: data})
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})
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_, err := io.Copy(sw, clientRequest)
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stream.CloseSend()
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errC <- err
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}()
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for i := 0; i < numStreams; i++ {
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if err := <-errC; 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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func (client *SmartHTTPClient) UploadPack(ctx context.Context, repo *gitalypb.Repository, clientRequest io.Reader, clientResponse io.Writer, gitConfigOptions []string, gitProtocol string) error {
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stream, err := client.PostUploadPack(ctx)
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if err != nil {
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return err
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}
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rpcRequest := &gitalypb.PostUploadPackRequest{
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Repository: repo,
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GitConfigOptions: gitConfigOptions,
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GitProtocol: gitProtocol,
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}
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if err := stream.Send(rpcRequest); err != nil {
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return fmt.Errorf("initial request: %v", err)
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}
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numStreams := 2
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errC := make(chan error, numStreams)
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go func() {
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rr := streamio.NewReader(func() ([]byte, error) {
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response, err := stream.Recv()
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return response.GetData(), err
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})
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_, err := io.Copy(clientResponse, rr)
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errC <- err
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}()
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go func() {
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sw := streamio.NewWriter(func(data []byte) error {
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return stream.Send(&gitalypb.PostUploadPackRequest{Data: data})
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})
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_, err := io.Copy(sw, clientRequest)
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stream.CloseSend()
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errC <- err
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}()
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for i := 0; i < numStreams; i++ {
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if err := <-errC; 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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