[tahoe-lafs-trac-stream] [Tahoe-LAFS] #3862: Refactor throw_out_all_data feature of allmydata.storage.immutable.BucketWriter

[Tahoe-LAFS]

#3862: Refactor throw_out_all_data feature of
allmydata.storage.immutable.BucketWriter
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 Reporter:  itamarst     |          Owner:
     Type:  enhancement  |         Status:  new
 Priority:  normal       |      Milestone:  undecided
Component:  unknown      |        Version:  n/a
 Keywords:               |  Launchpad Bug:
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 Right now if `throw_out_all_data` is True, `BucketWriter` doesn't write
 anything. Instead of having this logic embedded inside the class, it would
 be better to have a `NoopBucketWriter` class that throws data away, and
 just swap it out if necessary.

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Ticket URL: <https://tahoe-lafs.org/trac/tahoe-lafs/ticket/3862>
Tahoe-LAFS <https://Tahoe-LAFS.org>
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