Commands return correct exit codes.

[tobiasraabe]

Changes

• The creation of the database is moved to the post-parse step in the configuration. Necessary for pytask-environment.
• Fix exit codes and test them.

[codecov]

Codecov Report

Merging #26 into main will increase coverage by 1.71%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #26      +/-   ##
==========================================
+ Coverage   93.87%   95.59%   +1.71%     
==========================================
  Files          31       28       -3     
  Lines        1356     1612     +256     
==========================================
+ Hits         1273     1541     +268     
+ Misses         83       71      -12     

Flag	Coverage Δ
#end_to_end	94.04% <ø> (+12.40%)	⬆️
#integration	51.86% <ø> (+1.78%)	⬆️
#unit	60.42% <ø> (-18.05%)	⬇️

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

Impacted Files	Coverage Δ
src/_pytask/__init__.py	100.00% <ø> (ø)
src/_pytask/build.py	90.74% <ø> (ø)
src/_pytask/clean.py	90.35% <ø> (ø)
src/_pytask/cli.py	100.00% <ø> (ø)
src/_pytask/collect.py	94.06% <ø> (ø)
src/_pytask/config.py	100.00% <ø> (ø)
src/_pytask/dag.py	100.00% <ø> (ø)
src/_pytask/database.py	97.67% <ø> (ø)
src/_pytask/debugging.py	58.82% <ø> (ø)
src/_pytask/enums.py	100.00% <ø> (ø)
... and 46 more

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 09efb6a...dd7540c. Read the comment docs.