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// Package ulreq implements encoding and decoding upload-request
// messages from a git-upload-pack command.
package ulreq
import (
"time"
"gopkg.in/src-d/go-git.v4/core"
"gopkg.in/src-d/go-git.v4/formats/packp"
)
// UlReq values represent the information transmitted on a
// upload-request message. Values from this type are not zero-value
// safe, use the New function instead.
type UlReq struct {
Capabilities *packp.Capabilities
Wants []core.Hash
Shallows []core.Hash
Depth Depth
}
// Depth values stores the desired depth of the requested packfile: see
// DepthCommit, DepthSince and DepthReference.
type Depth interface {
isDepth()
}
// DepthCommits values stores the maximum number of requested commits in
// the packfile. Zero means infinite. A negative value will have
// undefined consecuences.
type DepthCommits int
func (d DepthCommits) isDepth() {}
// DepthSince values requests only commits newer than the specified time.
type DepthSince time.Time
func (d DepthSince) isDepth() {}
// DepthReference requests only commits not to found in the specified reference.
type DepthReference string
func (d DepthReference) isDepth() {}
// New returns a pointer to a new UlReq value, ready to be used. It has
// no capabilities, wants or shallows and an infinite depth. Please
// note that to encode an upload-request it has to have at least one
// wanted hash.
func New() *UlReq {
return &UlReq{
Capabilities: packp.NewCapabilities(),
Wants: []core.Hash{},
Shallows: []core.Hash{},
Depth: DepthCommits(0),
}
}
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