vfsswift

func DeleteContainer ¶

func DeleteContainer(ctx context.Context, c *swift.Connection, container string) error

DeleteContainer removes all the files inside the given container, and then deletes it.

func MakeObjectName ¶

func MakeObjectName(docID string) string

MakeObjectName build the swift object name for a given file document. It creates a virtual subfolder by splitting the document ID, which should be 32 bytes long, on the 27nth byte. This avoid having a flat hierarchy in swift with no bound

func MakeObjectNameV3 ¶

func MakeObjectNameV3(docID, internalID string) string

MakeObjectNameV3 builds the swift object name for a given file document. It creates a virtual subfolder by splitting the document ID, which should be 32 bytes long, on the 27nth byte. This avoid having a flat hierarchy in swift with no bound. And it appends the internalID at the end to regroup all the versions of a file in the same virtual subfolder.

func New ¶

func New(db prefixer.Prefixer, index vfs.Indexer, disk vfs.DiskThresholder, mu lock.ErrorRWLocker) (vfs.VFS, error)

New returns a vfs.VFS instance associated with the specified indexer and the swift storage url.

func NewInternalID ¶

func NewInternalID() string

NewInternalID returns a random string that can be used as an internal_vfs_id.

func NewThumbsFs ¶

func NewThumbsFs(c *swift.Connection, domain string) vfs.Thumbser

NewThumbsFs creates a new thumb filesystem base on swift.

func NewThumbsFsV2 ¶

func NewThumbsFsV2(c *swift.Connection, db prefixer.Prefixer) vfs.Thumbser

NewThumbsFsV2 creates a new thumb filesystem base on swift.

This version stores the thumbnails in the same container as the main data container.

func NewThumbsFsV3 ¶

func NewThumbsFsV3(c *swift.Connection, db prefixer.Prefixer) vfs.Thumbser

NewThumbsFsV3 creates a new thumb filesystem base on swift.

This version stores the thumbnails in the same container as the main data container.

func NewV2 ¶

func NewV2(db prefixer.Prefixer, index vfs.Indexer, disk vfs.DiskThresholder, mu lock.ErrorRWLocker) (vfs.VFS, error)

NewV2 returns a vfs.VFS instance associated with the specified indexer and the swift storage url.

This version implements a simpler layout where swift does not contain any hierarchy: meaning no index informations. This help with index incoherency and as many performance improvements regarding moving / renaming folders.

func NewV3 ¶

func NewV3(db prefixer.Prefixer, index vfs.Indexer, disk vfs.DiskThresholder, mu lock.ErrorRWLocker) (vfs.VFS, error)

NewV3 returns a vfs.VFS instance associated with the specified indexer and the swift storage url.

This new V3 version uses only a single swift container per instance. We can easily put the thumbnails in the same container that the data. And, for the versioning, Swift Object Versioning is not what we want: it is not as robust as we expected (we had encoding issue with the V1 layout for file with `? ` in the name), and it is poor in features (for example, we want to swap an old version with the current version without having to download/upload contents, and it is not supported).