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package receivepack
import (
"context"
"io"
"codeberg.org/lindenii/furgit/common/iowrap"
common "codeberg.org/lindenii/furgit/network/protocol/v0v1/server"
protoreceive "codeberg.org/lindenii/furgit/network/protocol/v0v1/server/receivepack"
"codeberg.org/lindenii/furgit/network/receivepack/service"
)
// TODO: Some more designing to do. In particular, we'd like to have access to
// commit graphs and stored object abstractions and such here, especially because
// hooks might want to access full repos, but we risk creating
// circular dependencies if we import repository/ here. Might need an interface-ish
// design, but that risks being over-complicated.
// Theoretically we could also just give the hooks an os.Root but that
// feels a bit ugly.
// ReceivePack serves one receive-pack session over r/w.
//
// Labels: Deps-Borrowed.
func ReceivePack(
ctx context.Context,
w iowrap.WriteFlusher,
r io.Reader,
opts Options,
) error {
err := validateOptions(opts)
if err != nil {
return err
}
version := parseVersion(opts.GitProtocol)
base := common.NewSession(r, w, common.Options{
Version: version,
Algorithm: opts.Algorithm,
})
agent := opts.Agent
if agent == "" {
agent = defaultAgent()
}
sessionID := opts.SessionID
if sessionID == "" {
sessionID = defaultSessionID()
}
pushCertNonce := opts.PushCertNonce
if pushCertNonce == "" {
pushCertNonce = defaultPushCertNonce()
}
protoSession := protoreceive.NewSession(base, protoreceive.Capabilities{
ReportStatus: true,
ReportStatusV2: true,
DeleteRefs: true,
SideBand64K: true,
Quiet: true,
Atomic: true,
OfsDelta: true,
PushOptions: true,
PushCertNonce: pushCertNonce,
SessionID: sessionID,
ObjectFormat: opts.Algorithm,
Agent: agent,
})
refs, err := advertisedRefs(opts)
if err != nil {
return err
}
err = protoSession.AdvertiseRefs(common.Advertisement{Refs: refs})
if err != nil {
return err
}
err = base.Flush()
if err != nil {
return err
}
req, err := protoSession.ReadRequest()
if err != nil {
return err
}
progress := protoSession.ProgressWriter()
if req.Capabilities.Quiet {
progress = iowrap.NopFlush(io.Discard)
}
serviceReq := &service.Request{
Commands: translateCommands(req.Commands),
PushOptions: append([]string(nil), req.PushOptions...),
Atomic: req.Capabilities.Atomic,
DeleteOnly: req.DeleteOnly,
PackExpected: req.PackExpected,
Pack: r,
}
svc := service.New(service.Options{
Algorithm: opts.Algorithm,
Refs: opts.Refs,
ExistingObjects: opts.ExistingObjects,
ObjectIngress: opts.ObjectIngress,
CommitGraph: opts.CommitGraph,
Progress: progress,
Hook: translateHook(opts.Hook),
HookIO: service.HookIO{
Progress: progress,
Error: protoSession.ErrorWriter(),
},
})
result, err := svc.Execute(ctx, serviceReq)
if err != nil {
return err
}
protoResult := translateResult(result)
if req.Capabilities.ReportStatusV2 {
err = protoSession.WriteReportStatusV2(protoResult)
if err != nil {
return err
}
} else if req.Capabilities.ReportStatus {
err = protoSession.WriteReportStatus(protoResult)
if err != nil {
return err
}
}
return base.Flush()
}
|
