func formatCaps(c *capability.List) string {
if c == nil {
return ""
}
return c.String()
}
// NewReferenceUpdateRequestFromCapabilities returns a pointer to a new
// ReferenceUpdateRequest value, the request capabilities are filled with the
// most optimal ones, based on the adv value (advertised capabilities), the
// ReferenceUpdateRequest contains no commands
//
// It does set the following capabilities:
// - agent
// - report-status
// - ofs-delta
// - ref-delta
// It leaves up to the user to add the following capabilities later:
// - atomic
// - ofs-delta
// - side-band
// - side-band-64k
// - quiet
// - push-cert
func NewReferenceUpdateRequestFromCapabilities(adv *capability.List) *ReferenceUpdateRequest {
r := NewReferenceUpdateRequest()
if adv.Supports(capability.Agent) {
r.Capabilities.Set(capability.Agent, capability.DefaultAgent)
}
if adv.Supports(capability.ReportStatus) {
r.Capabilities.Set(capability.ReportStatus)
}
return r
}
func (r *ReferenceUpdateRequest) encodeCommands(e *pktline.Encoder,
cmds []*Command, cap *capability.List) error {
if err := e.Encodef("%s\x00%s",
formatCommand(cmds[0]), cap.String()); err != nil {
return err
}
for _, cmd := range cmds[1:] {
if err := e.Encodef(formatCommand(cmd)); err != nil {
return err
}
}
return e.Flush()
}
func buildSidebandIfSupported(l *capability.List, reader io.Reader, p sideband.Progress) io.Reader {
var t sideband.Type
switch {
case l.Supports(capability.Sideband):
t = sideband.Sideband
case l.Supports(capability.Sideband64k):
t = sideband.Sideband64k
default:
return reader
}
d := sideband.NewDemuxer(t, reader)
d.Progress = p
return d
}
// NewUploadRequestFromCapabilities returns a pointer to a new UploadRequest
// value, the request capabilities are filled with the most optiomal ones, based
// on the adv value (advertaised capabilities), the UploadRequest generated it
// has no wants or shallows and an infinite depth.
func NewUploadRequestFromCapabilities(adv *capability.List) *UploadRequest {
r := NewUploadRequest()
if adv.Supports(capability.MultiACKDetailed) {
r.Capabilities.Set(capability.MultiACKDetailed)
} else if adv.Supports(capability.MultiACK) {
r.Capabilities.Set(capability.MultiACK)
}
if adv.Supports(capability.Sideband64k) {
r.Capabilities.Set(capability.Sideband64k)
} else if adv.Supports(capability.Sideband) {
r.Capabilities.Set(capability.Sideband)
}
if adv.Supports(capability.ThinPack) {
r.Capabilities.Set(capability.ThinPack)
}
if adv.Supports(capability.OFSDelta) {
r.Capabilities.Set(capability.OFSDelta)
}
if adv.Supports(capability.Agent) {
r.Capabilities.Set(capability.Agent, capability.DefaultAgent)
}
return r
}
// FilterUnsupportedCapabilities it filter out all the UnsupportedCapabilities
// from a capability.List, the intended usage is on the client implementation
// to filter the capabilities from an AdvRefs message.
func FilterUnsupportedCapabilities(list *capability.List) {
for _, c := range UnsupportedCapabilities {
list.Delete(c)
}
}