drive

package
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Published: Dec 2, 2019 License: MIT Imports: 21 Imported by: 0

Documentation

Overview

Package drive interfaces with the Google Drive object storage system

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func NewFs

func NewFs(name, path string) (fs.Fs, error)

NewFs contstructs an Fs from the path, container:path

Types

type Fs

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

Fs represents a remote drive server

func (*Fs) Copy

func (f *Fs) Copy(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(pathID, leaf string) (newID string, err error)

CreateDir makes a directory with pathID as parent and name leaf

func (*Fs) DirMove

func (f *Fs) DirMove(src fs.Fs) error

DirMove moves src directory to this remote 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) FindLeaf

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

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

func (*Fs) List

func (f *Fs) List() fs.ObjectsChan

List walks the path returning a channel of FsObjects

func (*Fs) ListDir

func (f *Fs) ListDir() fs.DirChan

ListDir walks the path returning a channel of directories

func (*Fs) Mkdir

func (f *Fs) Mkdir() error

Mkdir creates the container if it doesn't exist

func (*Fs) Move

func (f *Fs) Move(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) NewFsObject

func (f *Fs) NewFsObject(remote string) fs.Object

NewFsObject returns an FsObject from a path

May return nil if an error occurred

func (*Fs) Precision

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

Precision of the object storage system

func (*Fs) Purge

func (f *Fs) Purge() 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(in io.Reader, remote string, modTime time.Time, size int64) (fs.Object, error)

Put the object

This assumes that the object doesn't not already exists - if you call it when it does exist then it will create a duplicate. Call object.Update() in this case.

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() error

Rmdir deletes the container

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) String

func (f *Fs) String() string

String converts this Fs to a string

func (*Fs) Upload

func (f *Fs) Upload(in io.Reader, size int64, contentType string, info *drive.File, remote string) (*drive.File, error)

Upload the io.Reader in of size bytes with contentType and info

type Object

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

Object describes a drive object

func (*Object) Fs

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

Fs returns the parent Fs

func (*Object) Md5sum

func (o *Object) Md5sum() (string, error)

Md5sum returns the Md5sum of an object returning a lowercase hex string

func (*Object) ModTime

func (o *Object) ModTime() 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() (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() error

Remove an object

func (*Object) SetModTime

func (o *Object) SetModTime(modTime time.Time)

SetModTime sets the modification time of the drive 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 as to whether this object is storable

func (*Object) String

func (o *Object) String() string

Return a string version

func (*Object) Update

func (o *Object) Update(in io.Reader, modTime time.Time, size int64) error

Update the already existing object

Copy the reader into the object updating modTime and size

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

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