transport

Documentation

Overview

Package transport includes the implementation for different transport protocols.

`Client` can be used to fetch and send packfiles to a git server. The `client` package provides higher level functions to instantiate the appropriate `Client` based on the repository URL.

go-git supports HTTP and SSH (see `Protocols`), but you can also install your own protocols (see the `client` package).

Each protocol has its own implementation of `Client`, but you should generally not use them directly, use `client.NewClient` instead.

Index

• Constants
• Variables
• func FilterUnsupportedCapabilities(list *capability.List)
• type AuthMethod
• type Endpoint
  • func NewEndpoint(endpoint string) (Endpoint, error)
• type ReceivePackSession
• type Session
• type Transport
• type UploadPackSession

Constants

const (
	UploadPackServiceName  = "git-upload-pack"
	ReceivePackServiceName = "git-receive-pack"
)

Variables

var (
	ErrRepositoryNotFound     = errors.New("repository not found")
	ErrEmptyRemoteRepository  = errors.New("remote repository is empty")
	ErrAuthenticationRequired = errors.New("authentication required")
	ErrAuthorizationFailed    = errors.New("authorization failed")
	ErrEmptyUploadPackRequest = errors.New("empty git-upload-pack given")
	ErrInvalidAuthMethod      = errors.New("invalid auth method")
	ErrAlreadyConnected       = errors.New("session already established")
)

var UnsupportedCapabilities = []capability.Capability{
	capability.MultiACK,
	capability.MultiACKDetailed,
	capability.ThinPack,
}

UnsupportedCapabilities are the capabilities not supported by any client implementation

Functions

func FilterUnsupportedCapabilities

func FilterUnsupportedCapabilities(list *capability.List)

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.

Types

type AuthMethod

type AuthMethod interface {
	fmt.Stringer
	Name() string
}

type Endpoint

type Endpoint interface {
	// Protocol returns the protocol (e.g. git, https, file). It should never
	// return the empty string.
	Protocol() string
	// User returns the user or an empty string if none is given.
	User() string
	// Password returns the password or an empty string if none is given.
	Password() string
	// Host returns the host or an empty string if none is given.
	Host() string
	// Port returns the port or 0 if there is no port or a default should be
	// used.
	Port() int
	// Path returns the repository path.
	Path() string
	// String returns a string representation of the Git URL.
	String() string
}

Endpoint represents a Git URL in any supported protocol.

func NewEndpoint

func NewEndpoint(endpoint string) (Endpoint, error)

type ReceivePackSession

type ReceivePackSession interface {
	Session
	// ReceivePack sends an update references request and a packfile
	// reader and returns a ReportStatus and error. Don't be confused by
	// terminology, the client side of a git-receive-pack is called
	// git-send-pack, although here the same interface is used to make it
	// RPC-like.
	ReceivePack(context.Context, *packp.ReferenceUpdateRequest) (*packp.ReportStatus, error)
}

ReceivePackSession represents a git-receive-pack session. A git-receive-pack session has two steps: reference discovery (AdvertisedReferences) and receiving pack (ReceivePack). In that order.

type Session

type Session interface {
	// AdvertisedReferences retrieves the advertised references for a
	// repository.
	// If the repository does not exist, returns ErrRepositoryNotFound.
	// If the repository exists, but is empty, returns ErrEmptyRemoteRepository.
	AdvertisedReferences() (*packp.AdvRefs, error)
	io.Closer
}

type Transport

type Transport interface {
	// NewUploadPackSession starts a git-upload-pack session for an endpoint.
	NewUploadPackSession(Endpoint, AuthMethod) (UploadPackSession, error)
	// NewReceivePackSession starts a git-receive-pack session for an endpoint.
	NewReceivePackSession(Endpoint, AuthMethod) (ReceivePackSession, error)
}

Transport can initiate git-upload-pack and git-receive-pack processes. It is implemented both by the client and the server, making this a RPC.

type UploadPackSession

type UploadPackSession interface {
	Session
	// UploadPack takes a git-upload-pack request and returns a response,
	// including a packfile. Don't be confused by terminology, the client
	// side of a git-upload-pack is called git-fetch-pack, although here
	// the same interface is used to make it RPC-like.
	UploadPack(context.Context, *packp.UploadPackRequest) (*packp.UploadPackResponse, error)
}

UploadPackSession represents a git-upload-pack session. A git-upload-pack session has two steps: reference discovery (AdvertisedReferences) and uploading pack (UploadPack).