StreamingFetcher is now just Fetcher, and its FetchStreaming is now
just Fetch.
SeekFetcher is gone. Blobs are max 16 MB anyway, so we can slurp to
memory when needed. The main thing that cared about SeekFetcher
was the GET handler, ServeBlobref, because http.ServeContent needed
one for range requests. That's rewritten in an earlier commit, using
the FakeSeeker from another earlier commit.
Lot of code got simpler as a result.
Change-Id: Ib819413e48a8f9b8d97f596d0fbf771dab211f11
From the package docs:
Package archiver zips lots of little blobs into bigger zip files
and stores them somewhere. While generic, it was designed to
incrementally create Amazon Glacier archives from many little
blobs, rather than creating millions of Glacier archives.
Change-Id: If304b2d4bf144bfab073c61c148bb34fa0be2f2d
tnt