v0.2.2

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Highlights include:

• Initial support formatting f-strings (in --preview).
• Support for overriding arbitrary configuration options via the CLI through an expanded --config
  argument (e.g., --config "lint.isort.combine-as-imports=false").
• Significant performance improvements in Ruff's lexer, parser, and lint rules.

Preview features

• Implement minimal f-string formatting (#​9642)
• [pycodestyle] Add blank line(s) rules (E301, E302, E303, E304, E305, E306) (#​9266)
• [refurb] Implement readlines_in_for (FURB129) (#​9880)

Rule changes

• [ruff] Ensure closing parentheses for multiline sequences are always on their own line (RUF022, RUF023) (#​9793)
• [numpy] Add missing deprecation violations (NPY002) (#​9862)
• [flake8-bandit] Detect mark_safe usages in decorators (#​9887)
• [ruff] Expand asyncio-dangling-task (RUF006) to include new_event_loop (#​9976)
• [flake8-pyi] Ignore 'unused' private type dicts in class scopes (#​9952)

Formatter

• Docstring formatting: Preserve tab indentation when using indent-style=tabs (#​9915)
• Disable top-level docstring formatting for notebooks (#​9957)
• Stabilize quote-style's preserve mode (#​9922)

CLI

• Allow arbitrary configuration options to be overridden via the CLI (#​9599)

Bug fixes

• Make show-settings filters directory-agnostic (#​9866)
• Respect duplicates when rewriting type aliases (#​9905)
• Respect tuple assignments in typing analyzer (#​9969)
• Use atomic write when persisting cache (#​9981)
• Use non-parenthesized range for DebugText (#​9953)
• [flake8-simplify] Avoid false positive with async for loops (SIM113) (#​9996)
• [flake8-trio] Respect async with in timeout-without-await (#​9859)
• [perflint] Catch a wider range of mutations in PERF101 (#​9955)
• [pycodestyle] Fix E30X panics on blank lines with trailing white spaces (#​9907)
• [pydocstyle] Allow using parameters as a subsection header (D405) (#​9894)
• [pydocstyle] Fix blank-line docstring rules for module-level docstrings (#​9878)
• [pylint] Accept 0.0 and 1.0 as common magic values (PLR2004) (#​9964)
• [pylint] Avoid suggesting set rewrites for non-hashable types (#​9956)
• [ruff] Avoid false negatives with string literals inside of method calls (RUF027) (#​9865)
• [ruff] Fix panic on with f-string detection (RUF027) (#​9990)
• [ruff] Ignore builtins when detecting missing f-strings (#​9849)

Performance

• Use memchr for string lexing (#​9888)
• Use memchr for tab-indentation detection (#​9853)
• Reduce Result<Tok, LexicalError> size by using Box<str> instead of String (#​9885)
• Reduce size of Expr from 80 to 64 bytes (#​9900)
• Improve trailing comma rule performance (#​9867)
• Remove unnecessary string cloning from the parser (#​9884)