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71398f3fb4
"
This series cleans up the legacy and common ssatble writer code.
metadata_collector::_ancestors were moved to class sstable
so that the former can be moved out of sstable into file_writer_impl.
Moved setting of replay position and sstable level via
sstable_writer_config so that compaction won't need to access
the metadata_collector via the sstable.
With that, metadata_collector could be moved from class sstable
to sstable_writer::writer_impl along with the column_stats.
That allowed moved "generic" file_writer methods that were actually
k/l format specific into sstable_writer_k_l.
Eventually `file_writer` code is moved into sstables/writer.cc
and sstable_writer_k_l into sstables/kl/writer.{hh,cc}
A bonus cleanup is the ability to get rid of
sstable::_correctly_serialize_non_compound_range_tombstones as
it's now available to the writers via the writer configuration
and not required to be stored in the sstable object.
Fixes #3012
Test: unit(dev)
"
* tag 'cleanup-sstable-writer-v2' of github.com:bhalevy/scylla:
sstables: move writer code away to writer.cc
sstables: move sstable_writer_k_l away to kl/writer
sstables: get rid of sstable::_correctly_serialize_non_compound_range_tombstones
sstables: move writer methods to sstable_writer_k_l
sstables: move compaction ancestors to sstable
sstables: sstable_writer: optionally set sstable level via config
sstables: sstable_writer: optionally set replay position via config
sstables: compaction: make_sstable_writer_config
sstables: open code update_stats_on_end_of_stream in sstable_writer::consume_end_of_stream
sstables: fold components_writer into sstable_writer_k_l
sstables: move sstable_writer_k_l definition upwards
sstables: components_writer: turn _index into unique_ptr