Add options to Put, PutUnchecked and Update, add HashOption and speed up local

* Add options to Put, PutUnchecked and Update for all Fses
  * Use these to create HashOption
  * Implement this in local
  * Pass the option in fs.Copy

This has the effect that we only calculate hashes we need to in the
local Fs which speeds up transfers significantly.

amazonclouddrive/amazonclouddrive.go

@@ -534,7 +534,7 @@ func (f *Fs) checkUpload(resp *http.Response, in io.Reader, src fs.ObjectInfo, i
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	remote := src.Remote()
 	size := src.Size()
 	// Temporary Object under construction
@@ -1002,7 +1002,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 // Update the object with the contents of the io.Reader, modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	file := acd.File{Node: o.info}
 	var info *acd.File
 	var resp *http.Response

b2/b2.go

@@ -660,7 +660,7 @@ func (f *Fs) clearBucketID() {
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// Temporary Object under construction
 	fs := &Object{
 		fs:     f,
@@ -1161,7 +1161,7 @@ func urlEncode(in string) string {
 // Update the object with the contents of the io.Reader, modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) (err error) {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
 	if *b2Versions {
 		return errNotWithVersions
 	}

crypt/crypt.go

@@ -162,7 +162,7 @@ func (f *Fs) NewObject(remote string) (fs.Object, error) {
 // May create the object even if it returns an error - if so
 // will return the object and the error, otherwise will return
 // nil and the error
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	wrappedIn, err := f.cipher.EncryptData(in)
 	if err != nil {
 		return nil, err
@@ -282,7 +282,7 @@ func (f *Fs) DirMove(src fs.Fs, srcRemote, dstRemote string) error {
 //
 // This will create a duplicate if we upload a new file without
 // checking to see if there is one already - use Put() for that.
-func (f *Fs) PutUnchecked(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) PutUnchecked(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	do := f.Fs.Features().PutUnchecked
 	if do == nil {
 		return nil, errors.New("can't PutUnchecked")
@@ -455,7 +455,7 @@ func (o *Object) Open(options ...fs.OpenOption) (rc io.ReadCloser, err error) {
 }
 
 // Update in to the object with the modTime given of the given size
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	wrappedIn, err := o.f.cipher.EncryptData(in)
 	if err != nil {
 		return err

drive/drive.go

@@ -584,7 +584,7 @@ func (f *Fs) createFileInfo(remote string, modTime time.Time, size int64) (*Obje
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	exisitingObj, err := f.newObjectWithInfo(src.Remote(), nil)
 	switch err {
 	case nil:
@@ -601,7 +601,7 @@ func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
 //
 // This will create a duplicate if we upload a new file without
 // checking to see if there is one already - use Put() for that.
-func (f *Fs) PutUnchecked(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) PutUnchecked(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	remote := src.Remote()
 	size := src.Size()
 	modTime := src.ModTime()
@@ -1212,7 +1212,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 // Copy the reader into the object updating modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	size := src.Size()
 	modTime := src.ModTime()
 	if o.isDocument {

dropbox/dropbox.go

@@ -424,13 +424,13 @@ func (rc *readCloser) Close() error {
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// Temporary Object under construction
 	o := &Object{
 		fs:     f,
 		remote: src.Remote(),
 	}
-	return o, o.Update(in, src)
+	return o, o.Update(in, src, options...)
 }
 
 // Mkdir creates the container if it doesn't exist
@@ -835,7 +835,7 @@ func (o *Object) uploadChunked(in io.Reader, commitInfo *files.CommitInfo, size
 // Copy the reader into the object updating modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	remote := o.remotePath()
 	if ignoredFiles.MatchString(remote) {
 		fs.Logf(o, "File name disallowed - not uploading")

fs/fs.go

@@ -129,7 +129,7 @@ type Fs interface {
 	// May create the object even if it returns an error - if so
 	// will return the object and the error, otherwise will return
 	// nil and the error
-	Put(in io.Reader, src ObjectInfo) (Object, error)
+	Put(in io.Reader, src ObjectInfo, options ...OpenOption) (Object, error)
 
 	// Mkdir makes the directory (container, bucket)
 	//
@@ -174,7 +174,7 @@ type Object interface {
 	Open(options ...OpenOption) (io.ReadCloser, error)
 
 	// Update in to the object with the modTime given of the given size
-	Update(in io.Reader, src ObjectInfo) error
+	Update(in io.Reader, src ObjectInfo, options ...OpenOption) error
 
 	// Removes this object
 	Remove() error
@@ -287,7 +287,7 @@ type Features struct {
 	//
 	// May create duplicates or return errors if src already
 	// exists.
-	PutUnchecked func(in io.Reader, src ObjectInfo) (Object, error)
+	PutUnchecked func(in io.Reader, src ObjectInfo, options ...OpenOption) (Object, error)
 
 	// CleanUp the trash in the Fs
 	//
@@ -466,7 +466,7 @@ type PutUncheckeder interface {
 	//
 	// May create duplicates or return errors if src already
 	// exists.
-	PutUnchecked(in io.Reader, src ObjectInfo) (Object, error)
+	PutUnchecked(in io.Reader, src ObjectInfo, options ...OpenOption) (Object, error)
 }
 
 // CleanUpper is an optional interfaces for Fs

fs/lister_test.go

@@ -31,7 +31,9 @@ func (o mockObject) Size() int64                                       { return
 func (o mockObject) Storable() bool                                    { return true }
 func (o mockObject) SetModTime(time.Time) error                        { return errNotImpl }
 func (o mockObject) Open(options ...OpenOption) (io.ReadCloser, error) { return nil, errNotImpl }
-func (o mockObject) Update(in io.Reader, src ObjectInfo) error         { return errNotImpl }
+func (o mockObject) Update(in io.Reader, src ObjectInfo, options ...OpenOption) error {
+	return errNotImpl
+}
 func (o mockObject) Remove() error { return errNotImpl }
 
 type mockFs struct {

fs/operations.go

@@ -268,6 +268,17 @@ func Copy(f Fs, dst Object, remote string, src Object) (err error) {
 	maxTries := Config.LowLevelRetries
 	tries := 0
 	doUpdate := dst != nil
+	// work out which hash to use - limit to 1 hash in common
+	var common HashSet
+	hashType := HashNone
+	if !Config.SizeOnly {
+		common = src.Fs().Hashes().Overlap(f.Hashes())
+		if common.Count() > 0 {
+			hashType = common.GetOne()
+			common = HashSet(hashType)
+		}
+	}
+	hashOption := &HashesOption{Hashes: common}
 	var actionTaken string
 	for {
 		// Try server side copy first - if has optional interface and
@@ -285,7 +296,7 @@ func Copy(f Fs, dst Object, remote string, src Object) (err error) {
 		// If can't server side copy, do it manually
 		if err == ErrorCantCopy {
 			var in0 io.ReadCloser
-			in0, err = src.Open()
+			in0, err = src.Open(hashOption)
 			if err != nil {
 				err = errors.Wrap(err, "failed to open source object")
 			} else {
@@ -297,10 +308,10 @@ func Copy(f Fs, dst Object, remote string, src Object) (err error) {
 				}
 				if doUpdate {
 					actionTaken = "Copied (replaced existing)"
-					err = dst.Update(in, wrappedSrc)
+					err = dst.Update(in, wrappedSrc, hashOption)
 				} else {
 					actionTaken = "Copied (new)"
-					dst, err = f.Put(in, wrappedSrc)
+					dst, err = f.Put(in, wrappedSrc, hashOption)
 				}
 				closeErr := in.Close()
 				if err == nil {
@@ -338,12 +349,7 @@ func Copy(f Fs, dst Object, remote string, src Object) (err error) {
 	// Verify hashes are the same after transfer - ignoring blank hashes
 	// TODO(klauspost): This could be extended, so we always create a hash type matching
 	// the destination, and calculate it while sending.
-	common := src.Fs().Hashes().Overlap(dst.Fs().Hashes())
+	if hashType != HashNone {
-	// Debugf(src, "common hashes: %v", common)
-	if !Config.SizeOnly && common.Count() > 0 {
-		// Get common hash type
-		hashType := common.GetOne()
-
 		var srcSum string
 		srcSum, err = src.Hash(hashType)
 		if err != nil {

fs/options.go

@@ -94,6 +94,27 @@ func (o *HTTPOption) Mandatory() bool {
 	return false
 }
 
+// HashesOption defines an option used to tell the local fs to limit
+// the number of hashes it calculates.
+type HashesOption struct {
+	Hashes HashSet
+}
+
+// Header formats the option as an http header
+func (o *HashesOption) Header() (key string, value string) {
+	return "", ""
+}
+
+// String formats the option into human readable form
+func (o *HashesOption) String() string {
+	return fmt.Sprintf("HashesOption(%v)", o.Hashes)
+}
+
+// Mandatory returns whether the option must be parsed or can be ignored
+func (o *HashesOption) Mandatory() bool {
+	return false
+}
+
 // OpenOptionAddHeaders adds each header found in options to the
 // headers map provided the key was non empty.
 func OpenOptionAddHeaders(options []OpenOption, headers map[string]string) {

ftp/ftp.go

@@ -380,7 +380,7 @@ func (f *Fs) Precision() time.Duration {
 // May create the object even if it returns an error - if so
 // will return the object and the error, otherwise will return
 // nil and the error
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// fs.Debugf(f, "Trying to put file %s", src.Remote())
 	err := f.mkParentDir(src.Remote())
 	if err != nil {
@@ -390,7 +390,7 @@ func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
 		fs:     f,
 		remote: src.Remote(),
 	}
-	err = o.Update(in, src)
+	err = o.Update(in, src, options...)
 	return o, err
 }
 
@@ -674,7 +674,7 @@ func (o *Object) Open(options ...fs.OpenOption) (rc io.ReadCloser, err error) {
 // Copy the reader into the object updating modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) (err error) {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
 	// defer fs.Trace(o, "src=%v", src)("err=%v", &err)
 	path := path.Join(o.fs.root, o.remote)
 	// remove the file if upload failed

googlecloudstorage/googlecloudstorage.go

@@ -445,13 +445,13 @@ func (f *Fs) List(out fs.ListOpts, dir string) {
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// Temporary Object under construction
 	o := &Object{
 		fs:     f,
 		remote: src.Remote(),
 	}
-	return o, o.Update(in, src)
+	return o, o.Update(in, src, options...)
 }
 
 // Mkdir creates the bucket if it doesn't exist
@@ -683,7 +683,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 // Update the object with the contents of the io.Reader, modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	size := src.Size()
 	modTime := src.ModTime()
 

local/local.go

@@ -372,11 +372,11 @@ func (m *mapper) Save(in, out string) string {
 }
 
 // Put the Object to the local filesystem
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	remote := src.Remote()
 	// Temporary Object under construction - info filled in by Update()
 	o := f.newObject(remote, "")
-	err := o.Update(in, src)
+	err := o.Update(in, src, options...)
 	if err != nil {
 		return nil, err
 	}
@@ -707,10 +707,13 @@ func (file *localOpenFile) Close() (err error) {
 // Open an object for read
 func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 	var offset int64
+	hashes := fs.SupportedHashes
 	for _, option := range options {
 		switch x := option.(type) {
 		case *fs.SeekOption:
 			offset = x.Offset
+		case *fs.HashesOption:
+			hashes = x.Hashes
 		default:
 			if option.Mandatory() {
 				fs.Logf(o, "Unsupported mandatory option: %v", option)
@@ -728,11 +731,15 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 		// don't attempt to make checksums
 		return fd, err
 	}
+	hash, err := fs.NewMultiHasherTypes(hashes)
+	if err != nil {
+		return nil, err
+	}
 	// Update the md5sum as we go along
 	in = &localOpenFile{
 		o:    o,
 		in:   fd,
-		hash: fs.NewMultiHasher(),
+		hash: hash,
 	}
 	return in, nil
 }
@@ -744,7 +751,15 @@ func (o *Object) mkdirAll() error {
 }
 
 // Update the object from in with modTime and size
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
+	hashes := fs.SupportedHashes
+	for _, option := range options {
+		switch x := option.(type) {
+		case *fs.HashesOption:
+			hashes = x.Hashes
+		}
+	}
+
 	err := o.mkdirAll()
 	if err != nil {
 		return err
@@ -756,7 +771,10 @@ func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
 	}
 
 	// Calculate the hash of the object we are reading as we go along
-	hash := fs.NewMultiHasher()
+	hash, err := fs.NewMultiHasherTypes(hashes)
+	if err != nil {
+		return err
+	}
 	in = io.TeeReader(in, hash)
 
 	_, err = io.Copy(out, in)

onedrive/onedrive.go

@@ -468,7 +468,7 @@ func (f *Fs) createObject(remote string, modTime time.Time, size int64) (o *Obje
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	remote := src.Remote()
 	size := src.Size()
 	modTime := src.ModTime()
@@ -477,7 +477,7 @@ func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
 	if err != nil {
 		return nil, err
 	}
-	return o, o.Update(in, src)
+	return o, o.Update(in, src, options...)
 }
 
 // Mkdir creates the container if it doesn't exist
@@ -1007,7 +1007,7 @@ func (o *Object) uploadMultipart(in io.Reader, size int64) (err error) {
 // Update the object with the contents of the io.Reader, modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) (err error) {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error) {
 	o.fs.tokenRenewer.Start()
 	defer o.fs.tokenRenewer.Stop()
 

s3/s3.go

@@ -624,13 +624,13 @@ func (f *Fs) List(out fs.ListOpts, dir string) {
 }
 
 // Put the Object into the bucket
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// Temporary Object under construction
 	fs := &Object{
 		fs:     f,
 		remote: src.Remote(),
 	}
-	return fs, fs.Update(in, src)
+	return fs, fs.Update(in, src, options...)
 }
 
 // Check if the bucket exists
@@ -902,7 +902,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 }
 
 // Update the Object from in with modTime and size
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	modTime := src.ModTime()
 
 	uploader := s3manager.NewUploader(o.fs.ses, func(u *s3manager.Uploader) {

sftp/sftp.go

@@ -290,7 +290,7 @@ func (f *Fs) List(out fs.ListOpts, dir string) {
 }
 
 // Put data from <in> into a new remote sftp file object described by <src.Remote()> and <src.ModTime()>
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	err := f.mkParentDir(src.Remote())
 	if err != nil {
 		return nil, errors.Wrap(err, "Put mkParentDir failed")
@@ -300,7 +300,7 @@ func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
 		fs:     f,
 		remote: src.Remote(),
 	}
-	err = o.Update(in, src)
+	err = o.Update(in, src, options...)
 	if err != nil {
 		return nil, err
 	}
@@ -543,7 +543,7 @@ func (o *Object) Open(options ...fs.OpenOption) (in io.ReadCloser, err error) {
 }
 
 // Update a remote sftp file using the data <in> and ModTime from <src>
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	file, err := o.fs.sftpClient.Create(o.path())
 	if err != nil {
 		return errors.Wrap(err, "Update Create failed")

swift/swift.go

@@ -399,13 +399,13 @@ func (f *Fs) List(out fs.ListOpts, dir string) {
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	// Temporary Object under construction
 	fs := &Object{
 		fs:     f,
 		remote: src.Remote(),
 	}
-	return fs, fs.Update(in, src)
+	return fs, fs.Update(in, src, options...)
 }
 
 // Mkdir creates the container if it doesn't exist
@@ -737,7 +737,7 @@ func (o *Object) updateChunks(in io.Reader, headers swift.Headers, size int64, c
 // Update the object with the contents of the io.Reader, modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	size := src.Size()
 	modTime := src.ModTime()
 

yandex/yandex.go

@@ -397,7 +397,7 @@ func (o *Object) readMetaData() (err error) {
 // Copy the reader in to the new object which is returned
 //
 // The new object may have been created if an error is returned
-func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
+func (f *Fs) Put(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error) {
 	remote := src.Remote()
 	size := src.Size()
 	modTime := src.ModTime()
@@ -409,7 +409,7 @@ func (f *Fs) Put(in io.Reader, src fs.ObjectInfo) (fs.Object, error) {
 		modTime: modTime,
 	}
 	//TODO maybe read metadata after upload to check if file uploaded successfully
-	return o, o.Update(in, src)
+	return o, o.Update(in, src, options...)
 }
 
 // Mkdir creates the container if it doesn't exist
@@ -556,7 +556,7 @@ func (o *Object) remotePath() string {
 // Copy the reader into the object updating modTime and size
 //
 // The new object may have been created if an error is returned
-func (o *Object) Update(in io.Reader, src fs.ObjectInfo) error {
+func (o *Object) Update(in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) error {
 	size := src.Size()
 	modTime := src.ModTime()