Golang pacer.New函數代碼示例

// NewFs contstructs an Fs from the path, bucket:path
func NewFs(name, root string) (fs.Fs, error) {
	if uploadCutoff < chunkSize {
		return nil, errors.Errorf("b2: upload cutoff must be less than chunk size %v - was %v", chunkSize, uploadCutoff)
	}
	if chunkSize < minChunkSize {
		return nil, errors.Errorf("b2: chunk size can't be less than %v - was %v", minChunkSize, chunkSize)
	}
	bucket, directory, err := parsePath(root)
	if err != nil {
		return nil, err
	}
	account := fs.ConfigFile.MustValue(name, "account")
	if account == "" {
		return nil, errors.New("account not found")
	}
	key := fs.ConfigFile.MustValue(name, "key")
	if key == "" {
		return nil, errors.New("key not found")
	}
	endpoint := fs.ConfigFile.MustValue(name, "endpoint", defaultEndpoint)
	f := &Fs{
		name:     name,
		bucket:   bucket,
		root:     directory,
		account:  account,
		key:      key,
		endpoint: endpoint,
		srv:      rest.NewClient(fs.Config.Client()).SetErrorHandler(errorHandler),
		pacer:    pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
	}
	err = f.authorizeAccount()
	if err != nil {
		return nil, errors.Wrap(err, "failed to authorize account")
	}
	if f.root != "" {
		f.root += "/"
		// Check to see if the (bucket,directory) is actually an existing file
		oldRoot := f.root
		remote := path.Base(directory)
		f.root = path.Dir(directory)
		if f.root == "." {
			f.root = ""
		} else {
			f.root += "/"
		}
		obj := f.NewFsObject(remote)
		if obj != nil {
			return fs.NewLimited(f, obj), nil
		}
		f.root = oldRoot
	}
	return f, nil
}

// NewFs constructs an Fs from the path, container:path
func NewFs(name, root string) (fs.Fs, error) {
	root = parsePath(root)
	oAuthClient, _, err := oauthutil.NewClient(name, oauthConfig)
	if err != nil {
		log.Fatalf("Failed to configure One Drive: %v", err)
	}

	f := &Fs{
		name:  name,
		root:  root,
		srv:   rest.NewClient(oAuthClient).SetRoot(rootURL),
		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
	}
	f.features = (&fs.Features{CaseInsensitive: true, ReadMimeType: true}).Fill(f)
	f.srv.SetErrorHandler(errorHandler)

	// Get rootID
	rootInfo, _, err := f.readMetaDataForPath("")
	if err != nil || rootInfo.ID == "" {
		return nil, errors.Wrap(err, "failed to get root")
	}

	f.dirCache = dircache.New(root, rootInfo.ID, f)

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, rootInfo.ID, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		_, err := newF.newObjectWithInfo(remote, nil)
		if err != nil {
			if err == fs.ErrorObjectNotFound {
				// File doesn't exist so return old f
				return f, nil
			}
			return nil, err
		}
		// return an error with an fs which points to the parent
		return &newF, fs.ErrorIsFile
	}
	return f, nil
}

// NewFs constructs an Fs from the path, container:path
func NewFs(name, root string) (fs.Fs, error) {
	root = parsePath(root)
	oAuthClient, err := oauthutil.NewClient(name, oauthConfig)
	if err != nil {
		log.Fatalf("Failed to configure One Drive: %v", err)
	}

	f := &Fs{
		name:  name,
		root:  root,
		srv:   rest.NewClient(oAuthClient).SetRoot(rootURL),
		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
	}
	f.srv.SetErrorHandler(errorHandler)

	// Get rootID
	rootInfo, _, err := f.readMetaDataForPath("")
	if err != nil || rootInfo.ID == "" {
		return nil, fmt.Errorf("Failed to get root: %v", err)
	}

	f.dirCache = dircache.New(root, rootInfo.ID, f)

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, rootInfo.ID, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		obj := newF.newObjectWithInfo(remote, nil)
		if obj == nil {
			// File doesn't exist so return old f
			return f, nil
		}
		// return a Fs Limited to this object
		return fs.NewLimited(&newF, obj), nil
	}
	return f, nil
}

// NewFs constructs an Fs from the path, container:path
func NewFs(name, root string) (fs.Fs, error) {
	root = parsePath(root)
	oAuthClient, ts, err := oauthutil.NewClient(name, acdConfig)
	if err != nil {
		log.Fatalf("Failed to configure Amazon Drive: %v", err)
	}

	c := acd.NewClient(oAuthClient)
	f := &Fs{
		name:         name,
		root:         root,
		c:            c,
		pacer:        pacer.New().SetMinSleep(minSleep).SetPacer(pacer.AmazonCloudDrivePacer),
		noAuthClient: fs.Config.Client(),
		ts:           ts,
	}
	f.features = (&fs.Features{CaseInsensitive: true, ReadMimeType: true}).Fill(f)

	// Update endpoints
	var resp *http.Response
	err = f.pacer.Call(func() (bool, error) {
		_, resp, err = f.c.Account.GetEndpoints()
		return f.shouldRetry(resp, err)
	})
	if err != nil {
		return nil, errors.Wrap(err, "failed to get endpoints")
	}

	// Get rootID
	rootInfo, err := f.getRootInfo()
	if err != nil || rootInfo.Id == nil {
		return nil, errors.Wrap(err, "failed to get root")
	}
	f.trueRootID = *rootInfo.Id

	// Renew the token in the background
	go f.renewToken()

	f.dirCache = dircache.New(root, f.trueRootID, f)

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, f.trueRootID, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		_, err := newF.newObjectWithInfo(remote, nil)
		if err != nil {
			if err == fs.ErrorObjectNotFound {
				// File doesn't exist so return old f
				return f, nil
			}
			return nil, err
		}
		// return an error with an fs which points to the parent
		return &newF, fs.ErrorIsFile
	}
	return f, nil
}

// NewFs contstructs an FsDrive from the path, container:path
func NewFs(name, path string) (fs.Fs, error) {
	if !isPowerOfTwo(int64(chunkSize)) {
		return nil, fmt.Errorf("drive: chunk size %v isn't a power of two", chunkSize)
	}
	if chunkSize < 256*1024 {
		return nil, fmt.Errorf("drive: chunk size can't be less than 256k - was %v", chunkSize)
	}

	oAuthClient, err := oauthutil.NewClient(name, driveConfig)
	if err != nil {
		log.Fatalf("Failed to configure drive: %v", err)
	}

	root, err := parseDrivePath(path)
	if err != nil {
		return nil, err
	}

	f := &FsDrive{
		name:  name,
		root:  root,
		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
	}

	// Create a new authorized Drive client.
	f.client = oAuthClient
	f.svc, err = drive.New(f.client)
	if err != nil {
		return nil, fmt.Errorf("Couldn't create Drive client: %s", err)
	}

	// Read About so we know the root path
	err = f.pacer.Call(func() (bool, error) {
		f.about, err = f.svc.About.Get().Do()
		return shouldRetry(err)
	})
	if err != nil {
		return nil, fmt.Errorf("Couldn't read info about Drive: %s", err)
	}

	f.dirCache = dircache.New(root, f.about.RootFolderId, f)

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, f.about.RootFolderId, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		obj, err := newF.newFsObjectWithInfoErr(remote, nil)
		if err != nil {
			// File doesn't exist so return old f
			return f, nil
		}
		// return a Fs Limited to this object
		return fs.NewLimited(&newF, obj), nil
	}
	// fmt.Printf("Root id %s", f.dirCache.RootID())
	return f, nil
}

// NewFs contstructs an Fs from the path, bucket:path
func NewFs(name, root string) (fs.Fs, error) {
	if uploadCutoff < chunkSize {
		return nil, errors.Errorf("b2: upload cutoff must be less than chunk size %v - was %v", chunkSize, uploadCutoff)
	}
	if chunkSize < minChunkSize {
		return nil, errors.Errorf("b2: chunk size can't be less than %v - was %v", minChunkSize, chunkSize)
	}
	bucket, directory, err := parsePath(root)
	if err != nil {
		return nil, err
	}
	account := fs.ConfigFileGet(name, "account")
	if account == "" {
		return nil, errors.New("account not found")
	}
	key := fs.ConfigFileGet(name, "key")
	if key == "" {
		return nil, errors.New("key not found")
	}
	endpoint := fs.ConfigFileGet(name, "endpoint", defaultEndpoint)
	f := &Fs{
		name:         name,
		bucket:       bucket,
		root:         directory,
		account:      account,
		key:          key,
		endpoint:     endpoint,
		srv:          rest.NewClient(fs.Config.Client()).SetErrorHandler(errorHandler),
		pacer:        pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant),
		uploadTokens: make(chan struct{}, fs.Config.Transfers),
		extraTokens:  make(chan struct{}, fs.Config.Transfers),
	}
	f.features = (&fs.Features{ReadMimeType: true, WriteMimeType: true}).Fill(f)
	// Set the test flag if required
	if *b2TestMode != "" {
		testMode := strings.TrimSpace(*b2TestMode)
		f.srv.SetHeader(testModeHeader, testMode)
		fs.Debug(f, "Setting test header \"%s: %s\"", testModeHeader, testMode)
	}
	// Fill up the upload and extra tokens
	for i := 0; i < fs.Config.Transfers; i++ {
		f.returnUploadToken()
		f.extraTokens <- struct{}{}
	}
	err = f.authorizeAccount()
	if err != nil {
		return nil, errors.Wrap(err, "failed to authorize account")
	}
	if f.root != "" {
		f.root += "/"
		// Check to see if the (bucket,directory) is actually an existing file
		oldRoot := f.root
		remote := path.Base(directory)
		f.root = path.Dir(directory)
		if f.root == "." {
			f.root = ""
		} else {
			f.root += "/"
		}
		_, err := f.NewObject(remote)
		if err != nil {
			if err == fs.ErrorObjectNotFound {
				// File doesn't exist so return old f
				f.root = oldRoot
				return f, nil
			}
			return nil, err
		}
		// return an error with an fs which points to the parent
		return f, fs.ErrorIsFile
	}
	return f, nil
}

// NewFs contstructs an Fs from the path, container:path
func NewFs(name, path string) (fs.Fs, error) {
	if !isPowerOfTwo(int64(chunkSize)) {
		return nil, errors.Errorf("drive: chunk size %v isn't a power of two", chunkSize)
	}
	if chunkSize < 256*1024 {
		return nil, errors.Errorf("drive: chunk size can't be less than 256k - was %v", chunkSize)
	}

	oAuthClient, _, err := oauthutil.NewClient(name, driveConfig)
	if err != nil {
		log.Fatalf("Failed to configure drive: %v", err)
	}

	root, err := parseDrivePath(path)
	if err != nil {
		return nil, err
	}

	f := &Fs{
		name:  name,
		root:  root,
		pacer: pacer.New().SetMinSleep(minSleep).SetMaxSleep(maxSleep).SetDecayConstant(decayConstant).SetAttackConstant(attackConstant),
	}

	// Create a new authorized Drive client.
	f.client = oAuthClient
	f.svc, err = drive.New(f.client)
	if err != nil {
		return nil, errors.Wrap(err, "couldn't create Drive client")
	}

	// Read About so we know the root path
	err = f.pacer.Call(func() (bool, error) {
		f.about, err = f.svc.About.Get().Do()
		return shouldRetry(err)
	})
	if err != nil {
		return nil, errors.Wrap(err, "couldn't read info about Drive")
	}

	f.dirCache = dircache.New(root, f.about.RootFolderId, f)

	// Parse extensions
	err = f.parseExtensions(*driveExtensions)
	if err != nil {
		return nil, err
	}
	err = f.parseExtensions(defaultExtensions) // make sure there are some sensible ones on there
	if err != nil {
		return nil, err
	}

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, f.about.RootFolderId, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		_, err := newF.newObjectWithInfo(remote, nil)
		if err != nil {
			// File doesn't exist so return old f
			return f, nil
		}
		// return an error with an fs which points to the parent
		return &newF, fs.ErrorIsFile
	}
	// fmt.Printf("Root id %s", f.dirCache.RootID())
	return f, nil
}

// NewFs constructs an Fs from the path, container:path
func NewFs(name, root string) (fs.Fs, error) {
	root = parsePath(root)
	oAuthClient, err := oauthutil.NewClient(name, acdConfig)
	if err != nil {
		log.Fatalf("Failed to configure amazon cloud drive: %v", err)
	}

	c := acd.NewClient(oAuthClient)
	c.UserAgent = fs.UserAgent
	f := &Fs{
		name:         name,
		root:         root,
		c:            c,
		pacer:        pacer.New().SetMinSleep(minSleep).SetPacer(pacer.AmazonCloudDrivePacer),
		noAuthClient: fs.Config.Client(),
	}

	// Update endpoints
	var resp *http.Response
	err = f.pacer.Call(func() (bool, error) {
		_, resp, err = f.c.Account.GetEndpoints()
		return shouldRetry(resp, err)
	})
	if err != nil {
		return nil, fmt.Errorf("Failed to get endpoints: %v", err)
	}

	// Get rootID
	var rootInfo *acd.Folder
	err = f.pacer.Call(func() (bool, error) {
		rootInfo, resp, err = f.c.Nodes.GetRoot()
		return shouldRetry(resp, err)
	})
	if err != nil || rootInfo.Id == nil {
		return nil, fmt.Errorf("Failed to get root: %v", err)
	}

	f.dirCache = dircache.New(root, *rootInfo.Id, f)

	// Find the current root
	err = f.dirCache.FindRoot(false)
	if err != nil {
		// Assume it is a file
		newRoot, remote := dircache.SplitPath(root)
		newF := *f
		newF.dirCache = dircache.New(newRoot, *rootInfo.Id, &newF)
		newF.root = newRoot
		// Make new Fs which is the parent
		err = newF.dirCache.FindRoot(false)
		if err != nil {
			// No root so return old f
			return f, nil
		}
		obj := newF.newFsObjectWithInfo(remote, nil)
		if obj == nil {
			// File doesn't exist so return old f
			return f, nil
		}
		// return a Fs Limited to this object
		return fs.NewLimited(&newF, obj), nil
	}
	return f, nil
}