feat(django): Instrument database rollbacks

[alexander-alderman-webb]

Description

Create spans for SQL rollbacks issued when Django calls rollback() on a PEP-249 database connection.

Patch the BaseDatabaseWrapper._rollback method, the same method in which debug statements were added in django/django@798e38c.

Rollback spans are generated for transaction.atomic blocks and for manual transaction.rollback() calls when auto-commit is disabled. Tests cover both cases, for SQLite and PostgreSQL, respectively.

Trying for yourself

Refer to #5100 (comment).

Issues

Reminders

• Please add tests to validate your changes, and lint your code using tox -e linters.
• Add GH Issue ID & Linear ID (if applicable)
• PR title should use conventional commit style (feat:, fix:, ref:, meta:)
• For external contributors: CONTRIBUTING.md, Sentry SDK development docs, Discord community

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 80.23%. Comparing base (e068db6) to head (947ac41).
⚠️ Report is 1 commits behind head on master.
✅ All tests successful. No failed tests found.

Additional details and impacted files

@@ Coverage Diff @@## master #5115 +/- ## ========================================== - Coverage 83.95% 80.23% -3.72%  ========================================== Files 180 180 Lines 18212 18222 +10 Branches 3234 3235 +1 ========================================== - Hits 15289 14620 -669 - Misses 1931 2695 +764 + Partials 992 907 -85 

Files with missing lines	Coverage Δ
sentry_sdk/consts.py	99.41% <100.00%> (+<0.01%)	⬆️
sentry_sdk/integrations/django/__init__.py	85.20% <100.00%> (+0.34%)	⬆️

... and 20 files with indirect coverage changes