Support -9e as an argument for xz compression

[dtcooper]

Hi there,

This allows for a little more extreme compression with xz (which is what I believe Raspberry Pi uses for their distributables).

Thanks!

[usimd]

Thanks for your addition! Good idea to allow very aggressive compression, didn't even know of this setting 👍

Would you mind adding a test case to also hit the coverage?

[dtcooper]

Thanks for your addition! Good idea to allow very aggressive compression, didn't even know of this setting 👍

Would you mind adding a test case to also hit the coverage?

I'm by no means a typescript expert, but I will try!

[dtcooper]

Was having trouble writing a test...

[dtcooper]

Okay! My trouble with the tests were one of the current tests wasn't working properly. It always threw an error because stageList wasn't properly converted to a list. I've fixed that test, tested for specific error cases, and added one for the new feature. Thanks!

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (014ec73) 96.16% compared to head (e831be5) 97.48%.
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #101      +/-   ##
==========================================
+ Coverage   96.16%   97.48%   +1.31%     
==========================================
  Files          12       12              
  Lines         391      437      +46     
  Branches       87      109      +22     
==========================================
+ Hits          376      426      +50     
- Misses          8       11       +3     
+ Partials        7        0       -7     

Flag	Coverage Δ
unittests	97.48% <100.00%> (+1.31%)	⬆️

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[usimd]

Awesome, thanks so much for your effort!

I'll have a closer look tomorrow but I assume this should be fine and we can then merge quickly.

[dtcooper]

Awesome, thanks so much for your effort!

I'll have a closer look tomorrow but I assume this should be fine and we can then merge quickly.

Great! Thanks!

[usimd]

Thanks again for your contribution!