NH-94756: dbo for mysql2

[xuan-cao-swi]

Description

Trace injection to mysql2 instrumentation

Other changes:

1. simplify some debug log to reduce the size (e.g. span_data -> span_data.to_span_data)
2. simplify oboe c lib check when compiling by removing unused oboe_config_get_revision
3. return unmodified uri when test with java-collector

Test (if applicable)

Prod

[cheempz]

Looks good @xuan-cao-swi! I made some suggestions to update the file headings. More important, is it possible to add some tests to verify the comment insertion and config option control?

[cheempz]

Getting verrrry close @xuan-cao-swi! Some minor suggestions and one ask--can you check whether these new patch tests are actually run? Not seeing them in the Rakefile task nor the GHA worfklow output.

[xuan-cao-swi]

Getting verrrry close @xuan-cao-swi! Some minor suggestions and one ask--can you check whether these new patch tests are actually run? Not seeing them in the Rakefile task nor the GHA worfklow output.

I have to execute the mysql2 test case separately in test/run_tests.sh because the OtelConfig.initialize test interferes with the mysql2 patch test case. When running rake test, since it’s a single process, the defined module is shared across the entire test suite. There is no method to unprepend a module from a class, so it’s easier to run the mysql2 patch test case separately.

[cheempz]

LGTM, thanks @xuan-cao-swi!