GH-48888: [Ruby] Add support for writing boolean array

[kou]

Rationale for this change

It's a primitive array.

What changes are included in this PR?

• Add support for 64-bit buffer alignment.
• Add ArrowFormat::BooleanType#to_flat_buffers

Are these changes tested?

Yes.

Are there any user-facing changes?

Yes.

• GitHub Issue: [Ruby] Add support for writing boolean array #48888

[github-actions]

⚠️ GitHub issue #48888 has been automatically assigned in GitHub to PR creator.

[hiroyuki-sato]

+1

LD_LIBRARY_PATH=/tmp/local/lib GI_TYPELIB_PATH=/tmp/local/lib/girepository-1.0 rake test
cd /path/to/arrow/ruby/red-arrow-format
/path/to/.rbenv/versions/3.4.7/bin/ruby test/run.rb
Loaded suite test
Started
/path/to/arrow/ruby/red-arrow-format/lib/arrow-format/file-reader.rb:40: warning: IO::Buffer is experimental and both the Ruby and C interface may change in the future!
Finished in 1.543011232 seconds.
-----------------------------------------------------------------------------------------------------------------------------
108 tests, 108 assertions, 0 failures, 0 errors, 0 pendings, 0 omissions, 0 notifications
100% passed
-----------------------------------------------------------------------------------------------------------------------------
69.99 tests/s, 69.99 assertions/s
cd -

[hiroyuki-sato]

Nit: What do you think about adding units like BUFFER_ALIGNMENT_BYTES or BUFFER_ALIGNMENT_BITS? (I didn't know the unit)

[kou]

Hmm. I don't think that we need it (at least for now). In general, alignment unit is bytes.

[conbench-apache-arrow]

After merging your PR, Conbench analyzed the 3 benchmarking runs that have been run so far on merge-commit 97c656b.

There were no benchmark performance regressions. 🎉

The full Conbench report has more details. It also includes information about 1 possible false positive for unstable benchmarks that are known to sometimes produce them.