runner.singularity: Explicitly support Apptainer's singularity
when checking versions
#343
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My intent was (and remains) to try to maintain compatibility with both SingularityCE and Apptainer after the Singularity fork. I didn't realize/recall that Apptainer restarted version numbering when I added this version inspection!
It would be most ideal if Apptainer's
singularity
executable reported the equivalent/compatible SingularityCE version, but that's understandably difficult and so I get why it reports the Apptainer version instead.Thanks to @osageorange for raising this issue, testing this patch, and reporting back that it works!
As SingularityCE and Apptainer continue to diverge, a more complicated treatment of them may be needed, but for now this should suffice.
Resolves #329.
Checklist