ARROW-3761: [R] Bindings for CompressedInputStream, CompressedOutputStream

[romainfrancois]

No description provided.

[codecov-io]

Codecov Report

Merging #2962 into master will increase coverage by 15.14%.
The diff coverage is n/a.

@@             Coverage Diff             @@
##           master    #2962       +/-   ##
===========================================
+ Coverage   74.31%   89.45%   +15.14%     
===========================================
  Files          68       12       -56     
  Lines        5423     1811     -3612     
===========================================
- Hits         4030     1620     -2410     
+ Misses       1297      191     -1106     
+ Partials       96        0       -96

Impacted Files	Coverage Δ
go/arrow/array/table.go
go/arrow/math/uint64_amd64.go
go/arrow/internal/testing/tools/bool.go
go/arrow/internal/bitutil/bitutil.go
go/arrow/memory/memory_avx2_amd64.go
go/arrow/array/null.go
go/arrow/datatype_nested.go
go/arrow/array/string.go
go/arrow/math/uint64_avx2_amd64.go
go/arrow/array/builder.go
... and 46 more

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[wesm]

Are you working on this somewhere else?

[romainfrancois]

I'm not.

[romainfrancois]

I don't know what happened, but it looks I've lost some commits in that branch. this is thankfully minor.

[wesm]

Looks like you may need to git reset --hard to 8ccc977 and then rebase. It should be in your reflog

[romainfrancois]

Thanks @wesm

[wesm]

There are no tests here. What would you like to do?

[romainfrancois]

I’m still unsure how to test this. I’ll look around in pyarrow next time i look at this branch

[wesm]

Got it. I think we just generate random bytes and write them to a compressed file, then read them back in and compare

[romainfrancois]

Makes sense. IIRC I tried to serialize a record batch but that did not work out well.

[wesm]

Yeah, that requires random access. It should at least not crash, though

[wesm]

Well, to read using the *StreamReader should work. If it does not, that's buggy

[romainfrancois]

Thanks. I’ll use that in testing.

[romainfrancois]

This will likely need to be rebased once #3043 is merged

[wesm]

+1