SendSnapshot incremental stream #59
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mmlb
requested changes
May 25, 2017
zfs.go
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| @@ -67,6 +67,17 @@ const ( | |||
| Renamed | |||
| ) | |||
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| // SendFlag is the options flag passed to SendSnapshot and SendSnapshotIncremental | |||
| type SendFlag int | |||
zfs.go
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| @@ -224,24 +235,60 @@ func (d *Dataset) Mount(overlay bool, options []string) (*Dataset, error) { | |||
| // ReceiveSnapshot receives a ZFS stream from the input io.Reader, creates a | |||
| // new snapshot with the specified name, and streams the input data into the | |||
| // newly-created snapshot. | |||
| func ReceiveSnapshot(input io.Reader, name string) (*Dataset, error) { | |||
| // It includes the option "-F" like boolean value. | |||
| func ReceiveSnapshot(input io.Reader, name string, overwrite bool) (*Dataset, error) { | |||
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Changing API is a no go, with the current scheme of things you're going to have to create a new function probably something like ReceiveSnapshotOptioned (bettername++) that takes a map[string]interface{} which we can check for overwrite existence and do the right thing.
zfs.go
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| } | ||
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| // SendSnapshot sends a ZFS stream of a snapshot to the input io.Writer. | ||
| // An error will be returned if the input dataset is not of snapshot type. | ||
| func (d *Dataset) SendSnapshot(output io.Writer) error { | ||
| // It includes the option "-R". | ||
| func (d *Dataset) SendSnapshot(output io.Writer, flags SendFlag) error { |
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ditto as ^. side note: man I really wish we had a more expandable api.
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I suppose it's not a super improvement. Really, I have done this changes to adapt it to my necessities. I can do more progress but more later. If you want to add more functionalities, go! Because I'm rookie in golang and I take a lot of time^^
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I modified the functions ReceiveSnapshot and SendSnapshot to include the options "-F" and "-R". As weel as I add a new function called SendSnapshotIncremental that includes the optiones "-i" and "-I" to send incremental streams of snapshots.
The option -F is a boolean value in ReceiveSnapshot function.
The options for sending snapshots are called:
-i = IncrementalStream
-I = IncrementalPackage
-R = ReplicationStream