Add zstd and xz support#2893

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david-rundle wants to merge 19 commits intometomi:masterfrom

david-rundle:feature/add-zstd-xz

Commits on May 1, 2025

flake8 is super cool and clean and makes us write better code
david-rundle
committed

Commits on May 7, 2025

Add a couple of functional tests for rose-arch, and made some suggestions about code - notably that a failure should appear if thread != 1 if the compression app doesn't support that
wxtim
committed
* Made some tests pytest style, not unittest.
wxtim
committed

Commits on Jul 31, 2025