Smarter selection of multi index export to xarray

[jenshnielsen]

• Only automatically select multi index export if shapes are unset
• Allow the user to select which export type to use

• Tests?
• Changelog

[codecov]

Codecov Report

Merging #5589 (833a878) into main (61ee4b3) will increase coverage by 0.00%.
Report is 8 commits behind head on main.
The diff coverage is 94.73%.

Additional details and impacted files

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##             main    #5589   +/-   ##
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  Coverage   66.39%   66.39%           
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  Files         354      354           
  Lines       30962    30965    +3     
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+ Hits        20556    20559    +3     
  Misses      10406    10406           

[astafan8]

Looks good! I think a test would be good idea - same dataset with auto/never values covered, so that also if anything changes on xarray/pandas side we can catch it.

[jenshnielsen]

Testing plan

• For a complete dataset on a grid without shapes set: Test that multiindex is used iff always always selected
• For a complete dataset on grid with shape: The same
• For a incomplete dataset on grid with shape: The same
• For a dataset not on a grid: muitiindex: test multi index triggered iff always or auto
• For an incomplte dataset on a grid: test multi index triggered iff always or auto

[astafan8]

Beautiful clear tests!