box

Documentation

Overview

Package box provides an interface to the Box object storage system.

Index

• func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, error)
• type Fs
  • func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error)
  • func (f *Fs) ChangeNotify(ctx context.Context, notifyFunc func(string, fs.EntryType), ...)
  • func (f *Fs) CleanUp(ctx context.Context) (err error)
  • func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object, error)
  • func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string, err error)
  • func (f *Fs) DirCacheFlush()
  • func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string) error
  • func (f *Fs) Features() *fs.Features
  • func (f *Fs) FindLeaf(ctx context.Context, pathID, leaf string) (pathIDOut string, found bool, err error)
  • func (f *Fs) Hashes() hash.Set
  • func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error)
  • func (f *Fs) Mkdir(ctx context.Context, dir string) error
  • func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object, error)
  • func (f *Fs) Name() string
  • func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error)
  • func (f *Fs) Precision() time.Duration
  • func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration, unlink bool) (string, error)
  • func (f *Fs) Purge(ctx context.Context, dir string) error
  • func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)
  • func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)
  • func (f *Fs) PutUnchecked(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)
  • func (f *Fs) Rmdir(ctx context.Context, dir string) error
  • func (f *Fs) Root() string
  • func (f *Fs) Shutdown(ctx context.Context) error
  • func (f *Fs) String() string
• type ItemMeta
• type Object
  • func (o *Object) Fs() fs.Info
  • func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error)
  • func (o *Object) ID() string
  • func (o *Object) ModTime(ctx context.Context) time.Time
  • func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error)
  • func (o *Object) Remote() string
  • func (o *Object) Remove(ctx context.Context) error
  • func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error
  • func (o *Object) Size() int64
  • func (o *Object) Storable() bool
  • func (o *Object) String() string
  • func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error)
• type Options

Functions

func NewFs

func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, error)

NewFs constructs an Fs from the path, container:path

Types

type Fs

type Fs struct {
	// contains filtered or unexported fields
}

Fs represents a remote box

func (*Fs) About

func (f *Fs) About(ctx context.Context) (usage *fs.Usage, err error)

About gets quota information

func (*Fs) ChangeNotify

func (f *Fs) ChangeNotify(ctx context.Context, notifyFunc func(string, fs.EntryType), pollIntervalChan <-chan time.Duration)

ChangeNotify calls the passed function with a path that has had changes. If the implementation uses polling, it should adhere to the given interval.

Automatically restarts itself in case of unexpected behavior of the remote.

Close the returned channel to stop being notified.

func (*Fs) CleanUp

func (f *Fs) CleanUp(ctx context.Context) (err error)

CleanUp empties the trash

func (*Fs) Copy

func (f *Fs) Copy(ctx context.Context, src fs.Object, remote string) (fs.Object, error)

Copy src to this remote using server-side copy operations.

This is stored with the remote path given.

It returns the destination Object and a possible error.

Will only be called if src.Fs().Name() == f.Name()

If it isn't possible then return fs.ErrorCantCopy

func (*Fs) CreateDir

func (f *Fs) CreateDir(ctx context.Context, pathID, leaf string) (newID string, err error)

CreateDir makes a directory with pathID as parent and name leaf

func (*Fs) DirCacheFlush

func (f *Fs) DirCacheFlush()

DirCacheFlush resets the directory cache - used in testing as an optional interface

func (*Fs) DirMove

func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string) error

DirMove moves src, srcRemote to this remote at dstRemote using server-side move operations.

Will only be called if src.Fs().Name() == f.Name()

If it isn't possible then return fs.ErrorCantDirMove

If destination exists then return fs.ErrorDirExists

func (*Fs) Features

func (f *Fs) Features() *fs.Features

Features returns the optional features of this Fs

func (*Fs) FindLeaf

func (f *Fs) FindLeaf(ctx context.Context, pathID, leaf string) (pathIDOut string, found bool, err error)

FindLeaf finds a directory of name leaf in the folder with ID pathID

func (*Fs) Hashes

func (f *Fs) Hashes() hash.Set

Hashes returns the supported hash sets.

func (*Fs) List

func (f *Fs) List(ctx context.Context, dir string) (entries fs.DirEntries, err error)

List the objects and directories in dir into entries. The entries can be returned in any order but should be for a complete directory.

dir should be "" to list the root, and should not have trailing slashes.

This should return ErrDirNotFound if the directory isn't found.

func (*Fs) Mkdir

func (f *Fs) Mkdir(ctx context.Context, dir string) error

Mkdir creates the container if it doesn't exist

func (*Fs) Move

func (f *Fs) Move(ctx context.Context, src fs.Object, remote string) (fs.Object, error)

Move src to this remote using server-side move operations.

This is stored with the remote path given.

It returns the destination Object and a possible error.

Will only be called if src.Fs().Name() == f.Name()

If it isn't possible then return fs.ErrorCantMove

func (*Fs) Name

func (f *Fs) Name() string

Name of the remote (as passed into NewFs)

func (*Fs) NewObject

func (f *Fs) NewObject(ctx context.Context, remote string) (fs.Object, error)

NewObject finds the Object at remote. If it can't be found it returns the error fs.ErrorObjectNotFound.

func (*Fs) Precision

func (f *Fs) Precision() time.Duration

Precision return the precision of this Fs

func (*Fs) PublicLink

func (f *Fs) PublicLink(ctx context.Context, remote string, expire fs.Duration, unlink bool) (string, error)

PublicLink adds a "readable by anyone with link" permission on the given file or folder.

func (*Fs) Purge

func (f *Fs) Purge(ctx context.Context, dir string) error

Purge deletes all the files and the container

Optional interface: Only implement this if you have a way of deleting all the files quicker than just running Remove() on the result of List()

func (*Fs) Put

func (f *Fs) Put(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)

Put the object

Copy the reader in to the new object which is returned.

The new object may have been created if an error is returned

func (*Fs) PutStream

func (f *Fs) PutStream(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)

PutStream uploads to the remote path with the modTime given of indeterminate size

func (*Fs) PutUnchecked

func (f *Fs) PutUnchecked(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (fs.Object, error)

PutUnchecked the object into the container

This will produce an error if the object already exists.

Copy the reader in to the new object which is returned.

The new object may have been created if an error is returned

func (*Fs) Rmdir

func (f *Fs) Rmdir(ctx context.Context, dir string) error

Rmdir deletes the root folder

Returns an error if it isn't empty

func (*Fs) Root

func (f *Fs) Root() string

Root of the remote (as passed into NewFs)

func (*Fs) Shutdown

func (f *Fs) Shutdown(ctx context.Context) error

Shutdown shutdown the fs

func (*Fs) String

func (f *Fs) String() string

String converts this Fs to a string

type ItemMeta

type ItemMeta struct {
	SequenceID int64  // the most recent event processed for this item
	ParentID   string // ID of the parent directory of this item
	Name       string // leaf name of this item
}

ItemMeta defines metadata we cache for each Item ID

type Object

type Object struct {
	// contains filtered or unexported fields
}

Object describes a box object

Will definitely have info but maybe not meta

func (*Object) Fs

func (o *Object) Fs() fs.Info

Fs returns the parent Fs

func (*Object) Hash

func (o *Object) Hash(ctx context.Context, t hash.Type) (string, error)

Hash returns the SHA-1 of an object returning a lowercase hex string

func (*Object) ID

func (o *Object) ID() string

ID returns the ID of the Object if known, or "" if not

func (*Object) ModTime

func (o *Object) ModTime(ctx context.Context) time.Time

ModTime returns the modification time of the object

It attempts to read the objects mtime and if that isn't present the LastModified returned in the http headers

func (*Object) Open

func (o *Object) Open(ctx context.Context, options ...fs.OpenOption) (in io.ReadCloser, err error)

Open an object for read

func (*Object) Remote

func (o *Object) Remote() string

Remote returns the remote path

func (*Object) Remove

func (o *Object) Remove(ctx context.Context) error

Remove an object

func (*Object) SetModTime

func (o *Object) SetModTime(ctx context.Context, modTime time.Time) error

SetModTime sets the modification time of the local fs object

func (*Object) Size

func (o *Object) Size() int64

Size returns the size of an object in bytes

func (*Object) Storable

func (o *Object) Storable() bool

Storable returns a boolean showing whether this object storable

func (*Object) String

func (o *Object) String() string

Return a string version

func (*Object) Update

func (o *Object) Update(ctx context.Context, in io.Reader, src fs.ObjectInfo, options ...fs.OpenOption) (err error)

Update the object with the contents of the io.Reader, modTime and size

If existing is set then it updates the object rather than creating a new one.

The new object may have been created if an error is returned.

type Options

type Options struct {
	UploadCutoff  fs.SizeSuffix        `config:"upload_cutoff"`
	CommitRetries int                  `config:"commit_retries"`
	Enc           encoder.MultiEncoder `config:"encoding"`
	RootFolderID  string               `config:"root_folder_id"`
	AccessToken   string               `config:"access_token"`
	ListChunk     int                  `config:"list_chunk"`
	OwnedBy       string               `config:"owned_by"`
	Impersonate   string               `config:"impersonate"`
}

Options defines the configuration for this backend