12 "github.com/git-lfs/git-lfs/errors"
13 "github.com/git-lfs/git-lfs/lfsapi"
14 "github.com/git-lfs/git-lfs/tools"
18 BasicAdapterName = "basic"
19 defaultContentType = "application/octet-stream"
22 // Adapter for basic uploads (non resumable)
23 type basicUploadAdapter struct {
27 func (a *basicUploadAdapter) ClearTempStorage() error {
28 // Should be empty already but also remove dir
29 return os.RemoveAll(a.tempDir())
32 func (a *basicUploadAdapter) tempDir() string {
33 // Must be dedicated to this adapter as deleted by ClearTempStorage
34 d := filepath.Join(os.TempDir(), "git-lfs-basic-temp")
35 if err := os.MkdirAll(d, 0755); err != nil {
41 func (a *basicUploadAdapter) WorkerStarting(workerNum int) (interface{}, error) {
44 func (a *basicUploadAdapter) WorkerEnding(workerNum int, ctx interface{}) {
47 func (a *basicUploadAdapter) DoTransfer(ctx interface{}, t *Transfer, cb ProgressCallback, authOkFunc func()) error {
48 rel, err := t.Rel("upload")
53 return errors.Errorf("No upload action for object: %s", t.Oid)
56 req, err := a.newHTTPRequest("PUT", rel)
61 if req.Header.Get("Transfer-Encoding") == "chunked" {
62 req.TransferEncoding = []string{"chunked"}
64 req.Header.Set("Content-Length", strconv.FormatInt(t.Size, 10))
67 req.ContentLength = t.Size
69 f, err := os.OpenFile(t.Path, os.O_RDONLY, 0644)
71 return errors.Wrap(err, "basic upload")
75 if err := setContentTypeFor(req, f); err != nil {
79 // Ensure progress callbacks made while uploading
80 // Wrap callback to give name context
81 ccb := func(totalSize int64, readSoFar int64, readSinceLast int) error {
83 return cb(t.Name, totalSize, readSoFar, readSinceLast)
88 cbr := tools.NewBodyWithCallback(f, t.Size, ccb)
89 var reader lfsapi.ReadSeekCloser = cbr
91 // Signal auth was ok on first read; this frees up other workers to start
92 if authOkFunc != nil {
93 reader = newStartCallbackReader(reader, func() error {
101 req = a.apiClient.LogRequest(req, "lfs.data.upload")
102 res, err := a.doHTTP(t, req)
104 // We're about to return a retriable error, meaning that this
105 // transfer will either be retried, or it will fail.
107 // Either way, let's decrement the number of bytes that we've
108 // read _so far_, so that the next iteration doesn't re-transfer
109 // those bytes, according to the progress meter.
110 if perr := cbr.ResetProgress(); perr != nil {
111 err = errors.Wrap(err, perr.Error())
114 return errors.NewRetriableError(err)
117 // A status code of 403 likely means that an authentication token for the
118 // upload has expired. This can be safely retried.
119 if res.StatusCode == 403 {
120 err = errors.New("http: received status 403")
121 return errors.NewRetriableError(err)
124 if res.StatusCode > 299 {
125 return errors.Wrapf(nil, "Invalid status for %s %s: %d",
127 strings.SplitN(req.URL.String(), "?", 2)[0],
132 io.Copy(ioutil.Discard, res.Body)
135 return verifyUpload(a.apiClient, a.remote, t)
138 // startCallbackReader is a reader wrapper which calls a function as soon as the
139 // first Read() call is made. This callback is only made once
140 type startCallbackReader struct {
143 lfsapi.ReadSeekCloser
146 func (s *startCallbackReader) Read(p []byte) (n int, err error) {
147 if !s.cbDone && s.cb != nil {
148 if err := s.cb(); err != nil {
153 return s.ReadSeekCloser.Read(p)
155 func newStartCallbackReader(r lfsapi.ReadSeekCloser, cb func() error) *startCallbackReader {
156 return &startCallbackReader{
162 func configureBasicUploadAdapter(m *Manifest) {
163 m.RegisterNewAdapterFunc(BasicAdapterName, Upload, func(name string, dir Direction) Adapter {
166 bu := &basicUploadAdapter{newAdapterBase(m.fs, name, dir, nil)}
167 // self implements impl
171 panic("Should never ask this func for basic download")
177 func setContentTypeFor(req *http.Request, r io.ReadSeeker) error {
178 if len(req.Header.Get("Content-Type")) != 0 {
182 buffer := make([]byte, 512)
183 n, err := r.Read(buffer)
184 if err != nil && err != io.EOF {
185 return errors.Wrap(err, "content type detect")
188 contentType := http.DetectContentType(buffer[:n])
189 if _, err := r.Seek(0, 0); err != nil {
190 return errors.Wrap(err, "content type rewind")
193 if contentType == "" {
194 contentType = defaultContentType
197 req.Header.Set("Content-Type", contentType)