validate: resolved issues with relative path input

[TheChymera]

This is what could happen before this:

(dev) [deco]~/src/bids-examples/asl003 ❱ dandi validate .
2023-04-03 12:43:56,852 [    INFO] Note: NumExpr detected 12 cores but "NUMEXPR_MAX_THREADS" not set, so enforcing safe limit of 8.
2023-04-03 12:43:56,852 [    INFO] NumExpr defaulting to 8 threads.
2023-04-03 12:43:58,230 [    INFO] Logs saved in /home/chymera/.cache/dandi-cli/log/20230403164355Z-7402.log
Error: Path '.' is not inside Dandiset path '/home/chymera/src/bids-examples/asl003'

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (eef8443) 88.99% compared to head (4086377) 88.99%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1260   +/-   ##
=======================================
  Coverage   88.99%   88.99%           
=======================================
  Files          76       76           
  Lines        9784     9789    +5     
=======================================
+ Hits         8707     8712    +5     
  Misses       1077     1077           

Flag	Coverage Δ
unittests	88.99% <100.00%> (+<0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
dandi/tests/test_validate.py	85.71% <100.00%> (+1.09%)	⬆️
dandi/validate.py	97.82% <100.00%> (+0.04%)	⬆️

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[TheChymera]

@jwodder incorporated your change. Can we merge now?

[yarikoptic]

please add a test which does just what you did to demonstrate the issue -- runs validate . and produces expected results and doesn't fail. Can just extend some existing test with that.

grep for monkeypatch.chdir to see how to temporarily chdir to run that invocation.

Otherwise, without a test, there is no guarantee that we would not "fix it back" some time. Starting a fix with a reproducer test is a good habbit to have IMHO.

[TheChymera]

@yarikoptic done.

[github-actions]

🚀 PR was released in 0.53.0 🚀