FIX: enable multi-processing on Linux

[misialq]

Closes #32.

Unfortunately, multiprocessing seems not to be working on macOS, hence the platform check. See ablab/quast#175.

[codecov]

Codecov Report

Merging #33 (b7c6b87) into main (a562844) will increase coverage by 0.00%.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main      #33   +/-   ##
=======================================
  Coverage   98.66%   98.66%           
=======================================
  Files          25       25           
  Lines        1269     1275    +6     
=======================================
+ Hits         1252     1258    +6     
  Misses         17       17           

Impacted Files	Coverage Δ
q2_assembly/__init__.py	100.00% <ø> (ø)
q2_assembly/_action_params.py	100.00% <ø> (ø)
q2_assembly/_utils.py	100.00% <ø> (ø)
q2_assembly/bowtie2/__init__.py	100.00% <ø> (ø)
q2_assembly/bowtie2/indexing.py	100.00% <ø> (ø)
q2_assembly/bowtie2/mapping.py	100.00% <ø> (ø)
q2_assembly/bowtie2/tests/test_indexing.py	97.61% <ø> (ø)
q2_assembly/bowtie2/tests/test_mapping.py	99.21% <ø> (ø)
q2_assembly/bowtie2/tests/test_utils.py	98.92% <ø> (ø)
q2_assembly/bowtie2/utils.py	97.95% <ø> (ø)
... and 14 more

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[misialq]

Hey @gregcaporaso, what do you think about that? It would at least make it use multiprocessing on Linux for now...

[gregcaporaso]

@misialq, this looks good to me. Just a couple of suggestions on the code.

Too bad it won't work on macOS right now! I would put a link to that issue (ablab/quast#175) in your code as a reminder of where to look to see if it's been resolved in the future - for example:

# This is a limitation in quast that is documented in this issue:
# https://github.com/ablab/quast/issues/175

[misialq]

Thanks for review @gregcaporaso! All updated.

[gregcaporaso]

This looks good to me @misialq! Do you want me to merge this, or will you take care of it on that end? (I haven't merged anything in this repo yet, so just want to check on what would be most helpful.)

[misialq]

I can take it from here, thanks! 🙏