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package git
import (
"fmt"
"io"
"gopkg.in/src-d/go-git.v2/clients"
"gopkg.in/src-d/go-git.v2/clients/common"
"gopkg.in/src-d/go-git.v2/internal"
)
type Remote struct {
Endpoint common.Endpoint
upSrv clients.GitUploadPackService
upInfo *common.GitUploadPackInfo
}
// NewRemote returns a new Remote, using as client http.DefaultClient
func NewRemote(url string) (*Remote, error) {
end, err := common.NewEndpoint(url)
if err != nil {
return nil, err
}
return &Remote{
Endpoint: end,
upSrv: clients.NewGitUploadPackService(),
}, nil
}
// Connect with the endpoint
func (r *Remote) Connect() error {
if err := r.upSrv.Connect(r.Endpoint); err != nil {
return err
}
var err error
if r.upInfo, err = r.upSrv.Info(); err != nil {
return err
}
return nil
}
// Capabilities returns the remote capabilities
func (r *Remote) Capabilities() common.Capabilities {
return r.upInfo.Capabilities
}
// DefaultBranch retrieve the name of the remote's default branch
func (r *Remote) DefaultBranch() string {
return r.upInfo.Capabilities.SymbolicReference("HEAD")
}
// Fetch returns a reader using the request
func (r *Remote) Fetch(req *common.GitUploadPackRequest) (io.ReadCloser, error) {
return r.upSrv.Fetch(req)
}
// FetchDefaultBranch returns a reader for the default branch
func (r *Remote) FetchDefaultBranch() (io.ReadCloser, error) {
ref, err := r.Ref(r.DefaultBranch())
if err != nil {
return nil, err
}
return r.Fetch(&common.GitUploadPackRequest{
Want: []internal.Hash{ref},
})
}
// Ref returns the Hash pointing the given refName
func (r *Remote) Ref(refName string) (internal.Hash, error) {
ref, ok := r.upInfo.Refs[refName]
if !ok {
return internal.NewHash(""), fmt.Errorf("unable to find ref %q", refName)
}
return ref.Id, nil
}
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