When running a ruff check --fix-only there is no output about what errors were fixed. This surprised me, I thought it would still print the fixed error since the documentation about --fix-only says "Like fix, but disables reporting on leftover violation. Implies fix."

Maybe supplying --show-fixes will fix it? Yes,

ruff check --fix-only --show-fixes shows the fixed errors, great!

Can we also get this info in json output format? No,

ruff check --fix-only --show-fixes --output-format json print nothing! --output-format junit has the same issue.

Ruff version: 0.7.0