Commit Graph

4088 Commits

Author SHA1 Message Date
Dhruv Manilawala b021b5babe
Use `Tokens` from parsed type annotation or parsed source (#11740)
## Summary

This PR fixes a bug where the checker would require the tokens for an
invalid offset w.r.t. the source code.

Taking the source code from the linked issue as an example:
```py
relese_version :"0.0is 64"
```

Now, this isn't really a valid type annotation but that's what this PR
is fixing. Regardless of whether it's valid or not, Ruff shouldn't
panic.

The checker would visit the parsed type annotation (`0.0is 64`) and try
to detect any violations. Certain rule logic requests the tokens for the
same but it would fail because the lexer would only have the `String`
token considering original source code. This worked before because the
lexer was invoked again for each rule logic.

The solution is to store the parsed type annotation on the checker if
it's in a typing context and use the tokens from that instead if it's
available. This is enforced by creating a new API on the checker to get
the tokens.

But, this means that there are two ways to get the tokens via the
checker API. I want to restrict this in a follow-up PR (#11741) to only
expose `tokens` and `comment_ranges` as methods and restrict access to
the parsed source code.

fixes: #11736 

## Test Plan

- [x] Add a test case for `F632` rule and update the snapshot
- [x] Check all affected rules
- [x] No ecosystem changes
2024-06-05 07:50:33 +00:00
Dhruv Manilawala eed6d784df
Update type annotation parsing API to return `Parsed` (#11739)
## Summary

This PR updates the return type of `parse_type_annotation` from `Expr`
to `Parsed<ModExpression>`. This is to allow accessing the tokens for
the parsed sub-expression in the follow-up PR.

## Test Plan

`cargo insta test`
2024-06-05 12:59:43 +05:30
Jane Lewis 8338db6c12
`ruff server`: Formatting a document with syntax problems no longer spams a visible error popup (#11745)
## Summary

Fixes https://github.com/astral-sh/ruff-vscode/issues/482.

I've made adjustments to `format` and `format_range` that handle parsing
errors before they become server errors. We'll still log this as a
problem, but there will no longer be a visible popup.

## Test Plan

Instead of seeing a visible error when formatting a document with syntax
issues, you should see this warning in the LSP logs:

<img width="991" alt="Screenshot 2024-06-04 at 3 38 23 PM"
src="https://github.com/astral-sh/ruff/assets/19577865/9d68947d-6462-4ca6-ab5a-65e573c91db6">

Similarly, if you try to format a range with syntax issues, you should
see this warning in the LSP logs instead of a visible error popup:

<img width="1010" alt="Screenshot 2024-06-04 at 3 39 10 PM"
src="https://github.com/astral-sh/ruff/assets/19577865/99fff098-798d-406a-976e-81ead0da0352">

---------

Co-authored-by: Zanie Blue <contact@zanie.dev>
2024-06-04 17:18:21 -07:00
Carl Meyer d056d09547
[red-knot] add if-statement support to FlowGraph (#11673)
## Summary

Add if-statement support to FlowGraph. This introduces branches and
joins in the graph for the first time.

## Test Plan

Added tests.
2024-06-04 15:09:39 -06:00
Mateusz Sokół 1645be018d
Update `NPY001` rule for NumPy 2.0 (#11735)
Hi!

This PR addresses https://github.com/astral-sh/ruff/issues/11093.

It skips `np.bool` and `np.long` replacements as both of these names
were reintroduced in NumPy 2.0 with a different meaning
(https://github.com/numpy/numpy/pull/24922,
https://github.com/numpy/numpy/pull/25080).
With this change `NPY001` will no longer conflict with `NPY201`. For
projects using NumPy 1.x `np.bool` and `np.long` has been deprecated and
removed long time ago, and accessing them yields an informative error
message.
2024-06-04 19:23:42 +00:00
Dhruv Manilawala 2567e14b7a
Lexer should consider BOM for the start offset (#11732)
## Summary

This PR fixes a bug where the lexer didn't consider the BOM into the
start offset.

fixes: #11731

## Test Plan

Add multiple test cases which involves BOM character in the source for
the lexer and verify the snapshot.
2024-06-04 08:45:46 +00:00
Dhruv Manilawala 3b19df04d7
Use cursor offset for lexer checkpoint (#11734)
## Summary

This PR updates the lexer checkpoint to store the cursor offset instead
of cloning the cursor itself. This reduces the size of `LexerCheckpoint`
from 136 to 112 bytes and also removes the need for lifetime.

## Test Plan

`cargo insta test`
2024-06-04 14:13:57 +05:30
Micha Reiser 6ffb96171a
red-knot: Change `resolve_global_symbol` to take `Module` as an argument (#11723) 2024-06-04 06:20:50 +00:00
Micha Reiser 64165bee43
red-knot: Use `parse_unchecked` to get all parse errors (#11725) 2024-06-04 06:04:48 +00:00
Charlie Marsh 0c75548146
Respect per-file ignores for blanket and redirected noqa rules (#11728)
## Summary

Ensures that we respect per-file ignores and exemptions for these rules.
Specifically, we allow:

```python
# ruff: noqa: PGH004
```

...to ignore `PGH004`.
2024-06-04 03:57:59 +00:00
Alex b56a577f25
[`pygrep_hooks`] Check blanket ignores via file-level pragmas (`PGH004`) (#11540)
## Summary

Should resolve https://github.com/astral-sh/ruff/issues/11454.

This is my first PR to `ruff`, so I may have missed something.

If I understood the suggestion in the issue correctly, rule `PGH004`
should be set to `Preview` again.

## Test Plan

Created two fixtures derived from the issue.
2024-06-04 03:42:58 +00:00
Tushar Sadhwani e1133a24ed
[`flake8-pyi`] Implement `PYI063` (#11699)
## Summary
Implements `Y063` from `flake8-pyi`.

## Test Plan
`cargo test` / `cargo insta review`
2024-06-04 03:15:04 +00:00
Charlie Marsh 2f8ac1e9b3
Fix `red-knot` compilation (#11727)
## Summary

Perhaps a result of a bad rebase, but `cargo clippy --fix --workspace
--all-targets -- -D warnings` does not pass on main as-is.
2024-06-04 03:03:38 +00:00
Carl Meyer 3fb2028506
[red-knot] extract helper functions in inference tests (#11671)
There's a lot of repeat boilerplate in the type inference tests; this
cuts it down a lot.
2024-06-03 17:46:04 -06:00
Carl Meyer 3f9ee31efb
[red-knot] use reachable definitions in infer_expression_type (#11670)
## Summary

Switch name resolution in `infer_expression_type` from resolving the
public type of a symbol, to resolving the reachable definitions of that
symbol from the reference point, using the flow graph.

This surfaced a bug in the flow graph implementation and a bug in symbol
table building, both of which are also fixed here.

The bug in flow graph implementation was that when we pushed and popped
scopes, we didn't maintain a stack of "current flow nodes" in all
stacked scopes, to be restored when we returned to that scope. Now we
do.

The bug in symbol table building that we didn't visit the parts of
functions and class definitions in the correct scopes. E.g. decorators
should be visited in the outer scope, arguments should be visited inside
the type-params scope (if any) but not inside the function body scope,
and only the body itself should actually be visited inside the body
scope. Fixing this requires that we no longer use `walk_stmt` here,
instead we have to visit each individual component.

## Test Plan

Added test.
2024-06-03 17:45:31 -06:00
Carl Meyer b02d3f3fd9
[red-knot] infer_symbol_public_type infers union of all definitions (#11669)
## Summary

Rename `infer_symbol_type` to `infer_symbol_public_type`, and allow it
to work on symbols with more than one definition. For now, use the most
cautious/sound inference, which is the union of all definitions. We can
prune this union more in future by eliminating definitions if we can
show that they can't be visible (this requires both that the symbol is
definitely later reassigned, and that there is no intervening
call/import that might be able to see the over-written definition).

## Test Plan

Added a test showing inference of union from multiple definitions.
2024-06-03 17:27:06 -06:00
Dhruv Manilawala 2b28889ca9
Isolate non-breaking whitespace indentation test case (#11721)
As discussed in Discord, this moves the test case for non-breaking
whitespace into its own method.
2024-06-03 13:20:55 +00:00
Dhruv Manilawala 8db147c09d
Generator should add a newline before type statement (#11720)
## Summary

This PR fixes a bug where the `Generator` wouldn't add a newline before
a type alias statement. This is because it wasn't using the `statement`
macro which takes care of the newline.

Without this fix, a code like:
```py
type X = int
type Y = str
```

The generator would produce:
```py
type X = inttype Y = str
```

## Test Plan

Add a test case.
2024-06-03 18:44:21 +05:30
Dhruv Manilawala a58bde6958
Remove less used parser dependencies (#11718)
## Summary

This PR removes the following dependencies from the `ruff_python_parser`
crate:
* `anyhow` (moved to dev dependencies)
* `is-macro`
* `itertools`

The main motivation is that they aren't used much.

Additionally, it updates the return type of `parse_type_annotation` to
use a more specific `ParseError` instead of the generic `anyhow::Error`.

## Test Plan

`cargo insta test`
2024-06-03 13:08:24 +00:00
Dhruv Manilawala f4e23d2dff
Use string expression for parsing type annotation (#11717)
## Summary

This PR updates the logic for parsing type annotation to accept a
`ExprStringLiteral` node instead of the string value and the range.

The main motivation of this change is to simplify the implementation of
`parse_type_annotation` function with:
* Use the `opener_len` and `closer_len` from the string flags to get the
raw contents range instead of extracting it via
	* `str::leading_quote(expression).unwrap().text_len()`
	* `str::trailing_quote(expression).unwrap().text_len()`
* Avoid comparing the string content if we already know that it's
implicitly concatenated

## Test Plan

`cargo insta test`
2024-06-03 13:04:03 +00:00
Dhruv Manilawala 4a155e2b22
Re-order lexer methods (#11716)
## Summary

This PR re-orders the lexer methods in the following order:

1. `next_token`
2. `lex_token`
3. `eat_indentation`
4. `handle_indentation`
5. `skip_whitespace`
6. `consume_ascii_character`
7. `try_single_char_prefix`
8. `try_double_char_prefix`
9. `lex_identifier`
10. `lex_fstring_start`
11. `lex_fstring_middle_or_end`
12. `lex_string`
13. `lex_number`
14. `lex_number_radix`
15. `lex_decimal_number`
16. `radix_run`
17. `lex_comment`
18. `lex_ipython_escape_command`
19. `consume_end`

Following was considered for the ordering:
* 1 is the main entry point which delegates to 2
* 3, 4, 5 are all related to whitespace which is done first
* 6 is the entrypoint for an ascii character which delegates to 9, 12,
13, 17, 18, 19
* Others are grouped around similar kind of methods
2024-06-03 12:58:35 +00:00
Dhruv Manilawala bf5b62edac
Maintain synchronicity between the lexer and the parser (#11457)
## Summary

This PR updates the entire parser stack in multiple ways:

### Make the lexer lazy

* https://github.com/astral-sh/ruff/pull/11244
* https://github.com/astral-sh/ruff/pull/11473

Previously, Ruff's lexer would act as an iterator. The parser would
collect all the tokens in a vector first and then process the tokens to
create the syntax tree.

The first task in this project is to update the entire parsing flow to
make the lexer lazy. This includes the `Lexer`, `TokenSource`, and
`Parser`. For context, the `TokenSource` is a wrapper around the `Lexer`
to filter out the trivia tokens[^1]. Now, the parser will ask the token
source to get the next token and only then the lexer will continue and
emit the token. This means that the lexer needs to be aware of the
"current" token. When the `next_token` is called, the current token will
be updated with the newly lexed token.

The main motivation to make the lexer lazy is to allow re-lexing a token
in a different context. This is going to be really useful to make the
parser error resilience. For example, currently the emitted tokens
remains the same even if the parser can recover from an unclosed
parenthesis. This is important because the lexer emits a
`NonLogicalNewline` in parenthesized context while a normal `Newline` in
non-parenthesized context. This different kinds of newline is also used
to emit the indentation tokens which is important for the parser as it's
used to determine the start and end of a block.

Additionally, this allows us to implement the following functionalities:
1. Checkpoint - rewind infrastructure: The idea here is to create a
checkpoint and continue lexing. At a later point, this checkpoint can be
used to rewind the lexer back to the provided checkpoint.
2. Remove the `SoftKeywordTransformer` and instead use lookahead or
speculative parsing to determine whether a soft keyword is a keyword or
an identifier
3. Remove the `Tok` enum. The `Tok` enum represents the tokens emitted
by the lexer but it contains owned data which makes it expensive to
clone. The new `TokenKind` enum just represents the type of token which
is very cheap.

This brings up a question as to how will the parser get the owned value
which was stored on `Tok`. This will be solved by introducing a new
`TokenValue` enum which only contains a subset of token kinds which has
the owned value. This is stored on the lexer and is requested by the
parser when it wants to process the data. For example:
8196720f80/crates/ruff_python_parser/src/parser/expression.rs (L1260-L1262)

[^1]: Trivia tokens are `NonLogicalNewline` and `Comment`

### Remove `SoftKeywordTransformer`

* https://github.com/astral-sh/ruff/pull/11441
* https://github.com/astral-sh/ruff/pull/11459
* https://github.com/astral-sh/ruff/pull/11442
* https://github.com/astral-sh/ruff/pull/11443
* https://github.com/astral-sh/ruff/pull/11474

For context,
https://github.com/RustPython/RustPython/pull/4519/files#diff-5de40045e78e794aa5ab0b8aacf531aa477daf826d31ca129467703855408220
added support for soft keywords in the parser which uses infinite
lookahead to classify a soft keyword as a keyword or an identifier. This
is a brilliant idea as it basically wraps the existing Lexer and works
on top of it which means that the logic for lexing and re-lexing a soft
keyword remains separate. The change here is to remove
`SoftKeywordTransformer` and let the parser determine this based on
context, lookahead and speculative parsing.

* **Context:** The transformer needs to know the position of the lexer
between it being at a statement position or a simple statement position.
This is because a `match` token starts a compound statement while a
`type` token starts a simple statement. **The parser already knows
this.**
* **Lookahead:** Now that the parser knows the context it can perform
lookahead of up to two tokens to classify the soft keyword. The logic
for this is mentioned in the PR implementing it for `type` and `match
soft keyword.
* **Speculative parsing:** This is where the checkpoint - rewind
infrastructure helps. For `match` soft keyword, there are certain cases
for which we can't classify based on lookahead. The idea here is to
create a checkpoint and keep parsing. Based on whether the parsing was
successful and what tokens are ahead we can classify the remaining
cases. Refer to #11443 for more details.

If the soft keyword is being parsed in an identifier context, it'll be
converted to an identifier and the emitted token will be updated as
well. Refer
8196720f80/crates/ruff_python_parser/src/parser/expression.rs (L487-L491).

The `case` soft keyword doesn't require any special handling because
it'll be a keyword only in the context of a match statement.

### Update the parser API

* https://github.com/astral-sh/ruff/pull/11494
* https://github.com/astral-sh/ruff/pull/11505

Now that the lexer is in sync with the parser, and the parser helps to
determine whether a soft keyword is a keyword or an identifier, the
lexer cannot be used on its own. The reason being that it's not
sensitive to the context (which is correct). This means that the parser
API needs to be updated to not allow any access to the lexer.

Previously, there were multiple ways to parse the source code:
1. Passing the source code itself
2. Or, passing the tokens

Now that the lexer and parser are working together, the API
corresponding to (2) cannot exists. The final API is mentioned in this
PR description: https://github.com/astral-sh/ruff/pull/11494.

### Refactor the downstream tools (linter and formatter)

* https://github.com/astral-sh/ruff/pull/11511
* https://github.com/astral-sh/ruff/pull/11515
* https://github.com/astral-sh/ruff/pull/11529
* https://github.com/astral-sh/ruff/pull/11562
* https://github.com/astral-sh/ruff/pull/11592

And, the final set of changes involves updating all references of the
lexer and `Tok` enum. This was done in two-parts:
1. Update all the references in a way that doesn't require any changes
from this PR i.e., it can be done independently
	* https://github.com/astral-sh/ruff/pull/11402
	* https://github.com/astral-sh/ruff/pull/11406
	* https://github.com/astral-sh/ruff/pull/11418
	* https://github.com/astral-sh/ruff/pull/11419
	* https://github.com/astral-sh/ruff/pull/11420
	* https://github.com/astral-sh/ruff/pull/11424
2. Update all the remaining references to use the changes made in this
PR

For (2), there were various strategies used:
1. Introduce a new `Tokens` struct which wraps the token vector and add
methods to query a certain subset of tokens. These includes:
	1. `up_to_first_unknown` which replaces the `tokenize` function
2. `in_range` and `after` which replaces the `lex_starts_at` function
where the former returns the tokens within the given range while the
latter returns all the tokens after the given offset
2. Introduce a new `TokenFlags` which is a set of flags to query certain
information from a token. Currently, this information is only limited to
any string type token but can be expanded to include other information
in the future as needed. https://github.com/astral-sh/ruff/pull/11578
3. Move the `CommentRanges` to the parsed output because this
information is common to both the linter and the formatter. This removes
the need for `tokens_and_ranges` function.

## Test Plan

- [x] Update and verify the test snapshots
- [x] Make sure the entire test suite is passing
- [x] Make sure there are no changes in the ecosystem checks
- [x] Run the fuzzer on the parser
- [x] Run this change on dozens of open-source projects

### Running this change on dozens of open-source projects

Refer to the PR description to get the list of open source projects used
for testing.

Now, the following tests were done between `main` and this branch:
1. Compare the output of `--select=E999` (syntax errors)
2. Compare the output of default rule selection
3. Compare the output of `--select=ALL`

**Conclusion: all output were same**

## What's next?

The next step is to introduce re-lexing logic and update the parser to
feed the recovery information to the lexer so that it can emit the
correct token. This moves us one step closer to having error resilience
in the parser and provides Ruff the possibility to lint even if the
source code contains syntax errors.
2024-06-03 18:23:50 +05:30
Alex Waygood 94a3c53841
Update UP035 for Python 3.13 and the latest version of typing_extensions (#11693) 2024-06-02 22:59:48 +01:00
Tobias Fischer 0ea2519e80
Add RDJson support. (#11682)
## Summary

Implement support for RDJson output for `ruff check`, as requested in
#8655.

## Test Plan

Tested using a snapshot test. Same approach as for e.g. the JSON output
formatter.

## Additional info

I tried to keep the implementation close to the JSON implementation.

I had to deviate a bit to make the `suggestions` key work: If there are
no suggestions, then setting `suggestions` to `null` is invalid
according to the JSONSchema. Therefore, I opted for a slightly more
complex implementation, that skips the `suggestions` key entirely if
there are no fixes available for the given diagnostic. Maybe it would
have been easier to set `"suggestions": []`, but I ended up doing it
this way.

I didn't consider notebooks, as I _think_ that RDJson doesn't work with
notebooks. This should be confirmed, and if so, there should be some
form of warning or error emitted when trying to output diagnostics for a
notebook.

I also didn't consider `ruff format`, as this comment:
https://github.com/astral-sh/ruff/issues/8655#issuecomment-1811446160
suggests that that wouldn't be compatible.

I'm new to Rust, any feedback is appreciated. 🙂 I
implemented this in order to have a productive rainy saturday afternoon,
I'm not knowledgeable about RDJson beyond the sources linked in the
issue.
2024-06-02 17:59:57 +00:00
Charlie Marsh 6d79ddc0aa
[`pyupgrade`] Write empty string in lieu of panic (#11696)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11692.
2024-06-02 17:51:03 +00:00
Alex Waygood 9f3e609278
Make tests aware that py313 is the latest supported Python version (#11690) 2024-06-02 13:06:04 +00:00
Charlie Marsh b36dd1aa51
[`flake8-simplify`] Simplify double negatives in `SIM103` (#11684)
## Summary

Closes: https://github.com/astral-sh/ruff/issues/11685.
2024-06-01 23:21:11 +00:00
github-actions[bot] 99834ee93d
Sync vendored typeshed stubs (#11668)
Close and reopen this PR to trigger CI

Co-authored-by: typeshedbot <>
2024-05-31 22:26:20 -06:00
Tobias Fischer 312f6640b8
[`flake8-bugbear`] Implement `return-in-generator` (`B901`) (#11644)
## Summary

This PR implements the rule B901, which is part of the opinionated rules
of `flake8-bugbear`.

This rule seems to be desired in `ruff` as per
https://github.com/astral-sh/ruff/issues/3758 and
https://github.com/astral-sh/ruff/issues/2954#issuecomment-1441162976.

## Test Plan

As this PR was made closely following the
[CONTRIBUTING.md](8a25531a71/CONTRIBUTING.md),
it tests using the snapshot approach, that is described there.

## Sources

The implementation is inspired by [the original implementation in the
`flake8-bugbear`
repository](d1aec4cbef/bugbear.py (L1092)).
The error message and [test
file](d1aec4cbef/tests/b901.py)
where also copied from there.

The documentation I came up with on my own and needs improvement. Maybe
the example given in
https://github.com/astral-sh/ruff/issues/2954#issuecomment-1441162976
could be used, but maybe they are too complex, I'm not sure.

## Open Questions

- [ ] Documentation. (See above.)

- [x] Can I access the parent in a visitor?

The [original
implementation](d1aec4cbef/bugbear.py (L1100))
references the `yield` statement's parent to check if it is an
expression statement. I didn't find a way to do this in `ruff` and used
the `is_expresssion_statement` field on the visitor instead. What are
your thoughts on this? Is it possible and / or desired to access the
parent node here?

- [x] Is `Option::is_some(...)` -> `...unwrap()` the right thing to do?

Referring to [this piece of
code](9d5a280f71/crates/ruff_linter/src/rules/flake8_bugbear/rules/return_x_in_generator.rs?plain=1#L91-L96).
From my understanding, the `.unwrap()` is safe, because it is checked
that `return_` is not `None`. However, I feel like I missed a more
elegant solution that does both in one.

## Other

I don't know a lot about this rule, I just implemented it because I
found it in a
https://github.com/astral-sh/ruff/labels/good%20first%20issue.

I'm new to Rust, so any constructive critisism is appreciated.

---------

Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>
2024-05-31 21:48:36 +00:00
Charlie Marsh 91a5fdee7a
Use find in indent detection (#11650) 2024-05-31 20:35:19 +00:00
Charlie Marsh 1ad5f9c038
Bump version to v0.4.7 (#11646) 2024-05-31 16:30:36 -04:00
plredmond e914bc300b
F401 sort bindings before adding to __all__ (#11648)
Sort the binding IDs before passing them to the add-to-`__all__`
function to address #11619.
2024-05-31 20:29:08 +00:00
Carl Meyer 27f6f048f0
[red-knot] initial (very incomplete) flow graph (#11624)
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## Summary

Introduces the skeleton of the flow graph. So far it doesn't actually
handle any non-linear control flow :) But it does show how we can go
from an expression that references a symbol, backward through the flow
graph, to find reachable definitions of that symbol.

Adding non-linear control flow will mean adding flow nodes with multiple
predecessors, which will introduce more complexity into
`ReachableDefinitionsIterator.next()`. But one step at a time.

## Test Plan

Added a (very basic) test.
2024-05-31 14:27:17 -06:00
Alex Waygood d62a617938
red-knot: Don't refer to `Module` instances as IDs (#11649) 2024-05-31 20:04:47 +00:00
Carl Meyer 16a926d138
[red-knot] infer int literal types (#11623)
## Summary

Give red-knot the ability to infer int literal types. This is quick and
easy, mostly because these types are a convenient way to observe
control-flow handling with simple assignments.

## Test Plan

Added test.
2024-05-31 13:52:29 -06:00
JaRoSchm 7ce17b7736
Add Vim and Kate setup guide for `ruff server` (#11615)
## Summary

In the [roadmap for `ruff
server`](https://github.com/astral-sh/ruff/discussions/10581) support
for vim and kate is listed. Therefore I added setup guides for them
based on the neovim guide. As I don't use pyright I wasn't able to
translate the corresponding part from the neovim guide.

## Test Plan

Doesn't apply.
2024-05-31 19:06:55 +00:00
Charlie Marsh f9a64503c8
Use char index rather than position for indent slice (#11645)
## Summary

A beginner's mistake :)

Closes https://github.com/astral-sh/ruff/issues/11641.
2024-05-31 19:04:36 +00:00
Alex Waygood 8a25531a71
red-knot: improve internal documentation in `module.rs` (#11638) 2024-05-31 16:11:18 +00:00
Micha Reiser 9b6d2ce1f2
Fix incorect placement of trailing stub function comments (#11632) 2024-05-31 12:06:17 +00:00
T-256 5b500fc4dc
`ruff server`: Add support for documents not exist on disk (#11588)
Co-authored-by: T-256 <Tester@test.com>
Co-authored-by: Micha Reiser <micha@reiser.io>
2024-05-31 08:34:10 +02:00
Charlie Marsh 685d11a909
Mark `repeated-isinstance-calls` as unsafe on Python 3.10 and later (#11622)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11616.
2024-05-30 18:05:24 +00:00
plredmond dcabd04caf
F401 use BTreeMap instead of FxHashMap (#11621)
* Potentially resolves #11619 (nondeterministic hashmap order across
different architectures) in F401 by replacing a hashmap with
nondeterministic traversal order with an ordered mapping.

I'm not sure how to test this with our CI/CD. I don't have an s390x
machine at home. Should I try it in Qemu?
2024-05-30 10:54:46 -07:00
Charlie Marsh 3aa7e35a4c
Avoid removing newlines between docstring headers and rST blocks (#11609)
Given:

```python
def func():
    """
    Example:

    .. code-block:: python

        import foo
    """
```

Removing the newline after the `Example:` header breaks Sphinx
rendering.

See: https://github.com/astral-sh/ruff/issues/11577
2024-05-30 13:29:20 -04:00
Charlie Marsh bd46cd1fcf
Infer indentation with imports when logical indent is absent (#11608)
## Summary

In an `__init__.py` file, it's not uncommon to lack a logical indent
(since it may just contain imports). In such cases, we were always
falling back to four-space indent. This PR adds detection for indents
within import groups.

Closes https://github.com/astral-sh/ruff/issues/11606.
2024-05-30 00:18:07 -04:00
Charlie Marsh a8d1328c1a
[`flake8-comprehension`] Strip parentheses around generators in C400 (#11607)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11603.
2024-05-30 03:26:56 +00:00
Christoph Hasse e35deee583
fix(F822): add option to enable F822 in __init__.py files (#11370)
## Summary

This PR aims to close #10095 by adding an option
`init-allow-undef-export` to the `pyflakes` settings. This option is
currently set to `true` such that behavior is kept identical.
But setting this option to `false` will lead to `F822` warnings to be
shown in all files, **including** `__init__.py` files.

As I've mentioned on #10095, I think `init-allow-undef-export=false`
would be the more user-friendly default option, as it creates fewer
surprises. @charliermarsh what do you think about making that the
default?

With this option in place, it's a single line fix for people that rely
on the old behavior.

And thinking longer term, for future major releases, one could probably
consider deprecating the option and eventually having people just `noqa`
these warnings if they are not wanted.


## Test Plan

I've added a `test_init_f822_enabled` test which repeats the test that
is done in the `init` test but this time with
`init-allow-undef-export=false` and the snap file correctly shows that
ruff will then trigger the otherwise suppressed F822 warning.


closes #10095
2024-05-30 03:15:05 +00:00
Micha Reiser 921bc15542
use owned ast and tokens in bench (#11598) 2024-05-29 18:10:32 +02:00
Vitaliy e14096f0a8
docs: Minor formatting typo in F401 example. (#11601)
## Summary

Removed stray space in sample code snippet that is against ruff's own
default formatting rules.

This documentation appears on
https://docs.astral.sh/ruff/rules/unused-import/

## Test Plan

This is a trivially obvious change, verifiable with `ruff format
--check`
2024-05-29 11:14:53 -04:00
Tomas R 7659114eb3
[flake8-pyi] Implement PYI057 (#11486)
Co-authored-by: Alex Waygood <Alex.Waygood@Gmail.com>
2024-05-29 10:04:36 +00:00
Micha Reiser 163c374242
Reduce extensive use of `snapshot.query` (#11596) 2024-05-29 10:11:46 +02:00
Charlie Marsh 204c59e353
Respect file exclusions in `ruff server` (#11590)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11587.

## Test Plan

- Added a lint error to `test_server.py` in `vscode-ruff`.
- Validated that, prior to this change, diagnostics appeared in the
file.
- Validated that, with this change, no diagnostics were shown.
- Validated that, with this change, no diagnostics were fixed on-save.
2024-05-29 02:58:36 +00:00
Tushar Sadhwani 531ae5227c
[`flake8-pyi`] Implement `PYI066` (#11541)
## Summary

- Implements `Y066` from `flake8-pyi` as `PYI066`
- Fixes `PYI006` not being raised for `elif` clauses. This would have
conflicted with PYI006's implementation, so decided to do it in the same
PR.

## Test Plan

`cargo test` / `cargo insta review`
2024-05-29 00:30:00 +00:00
Tushar Sadhwani e0169d8dea
[`flake8-pyi`] Implement `PYI064` (#11325)
## Summary

Implements `Y064` from `flake8-pyi` and its autofix.

## Test Plan

`cargo test` / `cargo insta review`
2024-05-28 23:57:13 +00:00
plredmond 9a3b9f9fb5
[redknot] add module type and attribute lookup for some types (#11416)
* Add a module type, `ModuleTypeId`
* Add an attribute lookup method `get_member` for `Type`
  * Only implemented for `ModuleTypeId` and `ClassTypeId`
  * [x] Should this be a trait?
    *Answer: no*
* [x] Uses `unwrap`, but we should remove that. Maybe add a new variant
to `QueryError`?
    *Answer: Return `Option<Type>` as is done elsewhere*
* Add `infer_definition_type` case for `Import`
* Add `infer_expr_type` case for `Attribute`
* Add a test to exercise these
* [x] remove all NOTE/FIXME/TODO after discussing with reviewers
2024-05-28 13:13:03 -07:00
Charlie Marsh 49a5a9ccc2
Bump version to v0.4.6 (#11585) 2024-05-28 15:10:53 -04:00
Charlie Marsh 69d9212817
Propagate reads on global variables (#11584)
## Summary

This PR ensures that if a variable is bound via `global`, and then the
`global` is read, the originating variable is also marked as read. It's
not perfect, in that it won't detect _rebindings_, like:

```python
from app import redis_connection

def func():
    global redis_connection

    redis_connection = 1
    redis_connection()
```

So, above, `redis_connection` is still marked as unused.

But it does avoid flagging `redis_connection` as unused in:

```python
from app import redis_connection

def func():
    global redis_connection

    redis_connection()
```

Closes https://github.com/astral-sh/ruff/issues/11518.
2024-05-28 14:47:05 -04:00
Akshet Pandey 4a305588e9
[`flake8-bandit`] `request-without-timeout` should warn for `requests.request` (#11548)
## Summary
Update
[S113](https://docs.astral.sh/ruff/rules/request-without-timeout/) to
also warns for missing timeout on when calling `requests.request`
2024-05-28 16:31:12 +00:00
Charlie Marsh 16acd4913f
Remove some unused `pub` functions (#11576)
## Summary

I left anything in `red-knot`, any `with_` methods, etc.
2024-05-28 09:56:51 -04:00
Micha Reiser 3989cb8b56
Make `ruff_notebook` a workspace dependency in `ruff_server` (#11572) 2024-05-28 09:26:39 +02:00
Charlie Marsh a38c05bf13
Avoid recommending context manager in `__enter__` implementations (#11575)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11567.
2024-05-28 01:44:24 +00:00
Charlie Marsh ab107ef1f3
Avoid recomending operator.itemgetter with dependence on lambda arg (#11574)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11573.
2024-05-28 01:29:29 +00:00
Ahmed Ilyas b36c713279
Consider irrefutable pattern similar to `if .. else` for `C901` (#11565)
## Summary

Follow up to https://github.com/astral-sh/ruff/pull/11521

Removes the extra added complexity for catch all match cases. This
matches the implementation of plain `else` statements.

## Test Plan
Added new test cases.

---------

Co-authored-by: Dhruv Manilawala <dhruvmanila@gmail.com>
2024-05-27 17:33:36 +00:00
Charlie Marsh 34a5063aa2
Respect excludes in `ruff server` configuration discovery (#11551)
## Summary

Right now, we're discovering configuration files even within (e.g.)
virtual environments, because we're recursing without respecting the
`exclude` field on parent configuration.

Closes https://github.com/astral-sh/ruff-vscode/issues/478.

## Test Plan

Installed Pandas; verified that I saw no warnings:

![Screenshot 2024-05-26 at 8 09
05 PM](https://github.com/astral-sh/ruff/assets/1309177/dcf4115c-d7b3-453b-b7c7-afdd4804d6f5)
2024-05-27 16:59:46 +00:00
Micha Reiser adc0a5d126
Rename document module to text_document (#11571) 2024-05-27 18:32:21 +02:00
Dhruv Manilawala e28e737296
Update `FStringElements` to deref to a slice (#11570)
Ref: https://github.com/astral-sh/ruff/pull/11400#discussion_r1615600354
2024-05-27 15:52:13 +00:00
Dhruv Manilawala 37ad994318
Use default settings if initialization options is empty or not provided (#11566)
## Summary

This PR fixes the bug to avoid flattening the global-only settings for
the new server.

This was added in https://github.com/astral-sh/ruff/pull/11497, possibly
to correctly de-serialize an empty value (`{}`). But, this lead to a bug
where the configuration under the `settings` key was not being read for
global-only variant.

By using #[serde(default)], we ensure that the settings field in the
`GlobalOnly` variant is optional and that an empty JSON object `{}` is
correctly deserialized into `GlobalOnly` with a default `ClientSettings`
instance.

fixes: #11507 

## Test Plan

Update the snapshot and existing test case. Also, verify the following
settings in Neovim:

1. Nothing

```lua
ruff = {
  cmd = {
    '/Users/dhruv/work/astral/ruff/target/debug/ruff',
    'server',
    '--preview',
  },
}
```

2. Empty dictionary

```lua
ruff = {
  cmd = {
    '/Users/dhruv/work/astral/ruff/target/debug/ruff',
    'server',
    '--preview',
  },
  init_options = vim.empty_dict(),
}
```

3. Empty `settings`

```lua
ruff = {
  cmd = {
    '/Users/dhruv/work/astral/ruff/target/debug/ruff',
    'server',
    '--preview',
  },
  init_options = {
    settings = vim.empty_dict(),
  },
}
```

4. With some configuration:

```lua
ruff = {
  cmd = {
    '/Users/dhruv/work/astral/ruff/target/debug/ruff',
    'server',
    '--preview',
  },
  init_options = {
    settings = {
      configuration = '/tmp/ruff-repro/pyproject.toml',
    },
  },
}
```
2024-05-27 21:06:34 +05:30
Alex Waygood 246a3388ee
Implement a common trait for the string flags (#11564) 2024-05-27 16:02:01 +01:00
Dhruv Manilawala 9200dfc79f
Remove empty strings when converting to f-string (`UP032`) (#11524)
## Summary

This PR brings back the functionality to remove empty strings when
converting to an f-string in `UP032`.

For context, https://github.com/astral-sh/ruff/pull/8712 added this
functionality to remove _trailing_ empty strings but it got removed in
https://github.com/astral-sh/ruff/pull/8697 possibly unexpectedly so.

There's one difference which is that this PR will remove _any_ empty
strings and not just trailing ones. For example,

```diff
--- /Users/dhruv/playground/ruff/src/UP032.py
+++ /Users/dhruv/playground/ruff/src/UP032.py
@@ -1,7 +1,5 @@
 (
-    "{a}"
-    ""
-    "{b}"
-    ""
-).format(a=1, b=1)
+    f"{1}"
+    f"{1}"
+)
```

## Test Plan

Run `cargo insta test` and update the snapshots.
2024-05-27 05:05:22 +00:00
Dhruv Manilawala 99c400000a
Avoid owned token data in sequence sorting (#11533)
## Summary

This PR updates the sequence sorting (`RUF022` and `RUF023`) to avoid
using the owned data from the string token. Instead, we will directly
use the reference to the data on the AST. This does introduce a lot of
lifetimes but that's required.

The main motivation for this is to allow removing the `lex_starts_at`
usage easily.

### Alternatives

1. Extract the raw string content (stripping the prefix and quotes)
using the `Locator` and use that for comparison
2. Build up an
[`IndexVec`](3e30962077/crates/ruff_index/src/vec.rs)
and use the newtype index in place of the string value itself. This also
does require lifetimes so we might as well just use the method in this
PR.

## Test Plan

`cargo insta test` and no ecosystem changes
2024-05-26 20:20:20 -04:00
Charlie Marsh b5d147d219
Create intermediary directories for `--output-file` (#11550)
Closes https://github.com/astral-sh/ruff/issues/11549.
2024-05-26 23:23:11 +00:00
Aleksei Latyshev 77da4615c1
[`pyupgrade`] Support `TypeAliasType` in `UP040` (#11530)
## Summary
Lint `TypeAliasType` in UP040.

Fixes #11422 

## Test Plan

cargo test
2024-05-26 19:05:35 +00:00
Jane Lewis 627d230688
`ruff server` searches for configuration in parent directories (#11537)
## Summary

Fixes #11506.

`RuffSettingsIndex::new` now searches for configuration files in parent
directories.

## Test Plan

I confirmed that the original test case described in the issue worked as
expected.
2024-05-26 18:11:08 +00:00
Fergus Longley 0eef834e89
Use project-relative path when calculating gitlab message fingerprint (#11532)
## Summary

Concurrent GitLab runners clone projects into separate directories, e.g.
`{builds_dir}/$RUNNER_TOKEN_KEY/$CONCURRENT_ID/$NAMESPACE/$PROJECT_NAME`.
Since the fingerprint uses the full path to the file, the fingerprints
calculated by Ruff are different depending on which concurrent runner it
executes on, so often an MR will appear to remove all existing issues
and add them with new fingerprints.

I've adjusted the fingerprint function to use the project relative path,
which fixes this. Unfortunately this will have a breaking change for any
current users of this output - the fingerprints will change and appear
in GitLab as all linting messages having been fixed and then created.

## Test Plan

`cargo nextest run`

Running `ruff check --output-format gitlab` in a git repo, moving the
repo and running again, verifying no diffs between the outputs
2024-05-26 14:10:04 -04:00
Charlie Marsh 650c578e07
[`flake8-self`] Ignore sunder accesses in `flake8-self` rule (#11546)
## Summary

We already ignore dunders, so ignoring sunders (as in
https://docs.python.org/3/library/enum.html#supported-sunder-names)
makes sense to me.
2024-05-26 13:57:24 -04:00
Jane Lewis 9567fddf69
`ruff server` correctly treats `.pyi` files as stub files (#11535)
## Summary

Fixes #11534.

`DocumentQuery::source_type` now returns `PySourceType::Stub` when the
document is a `.pyi` file.

## Test Plan

I confirmed that stub-specific rule violations appeared with a build
from this PR (they were not visible from a `main` build).

<img width="1066" alt="Screenshot 2024-05-24 at 2 15 38 PM"
src="https://github.com/astral-sh/ruff/assets/19577865/cd519b7e-21e4-41c8-bc30-43eb6d4d438e">
2024-05-26 13:42:48 -04:00
Mateusz Sokół ab6d9d4658
Add missing functions to NumPy 2.0 migration rule (#11528)
Hi! 

I left out some of the functions in the migration rule which became
removed in NumPy 2.0:
- `np.alltrue`
- `np.anytrue`
- `np.cumproduct`
- `np.product`

Addressing: https://github.com/numpy/numpy/issues/26493
2024-05-26 13:24:20 -04:00
Amar Paul 677893226a
[`flake8-2020`] fix minor typo in `YTT301` documentation (#11543)
## Summary

<!-- What's the purpose of the change? What does it do, and why? -->
Current doc says `sys.version[0]` will select the first digit of a major
version number (correct) then as an example says

> e.g., `"3.10"` would evaluate to `"1"`

(would actually evaluate to `"3"`). Changed the example version to a
two-digit number to make the problem more clear.

## Test Plan

<!-- How was it tested? -->
ran the following:
- `cargo run -p ruff -- check
crates/ruff_linter/resources/test/fixtures/flake8_2020/YTT301.py
--no-cache`
- `cargo insta review`
- `cargo test`
which all passed.
2024-05-26 13:23:41 -04:00
Ahmed Ilyas 33fd50027c
Consider match-case stmts for `C901`, `PLR0912`, and `PLR0915` (#11521)
Resolves #11421

## Summary

Instead of counting match/case as one statement, consider each `case` as
a conditional.

## Test Plan

`cargo test`
2024-05-24 14:44:46 +05:30
Dmitry Bogorad 3e30962077
[`flake8-logging-format`] Fix the autofix title in `logging-warn` (`G010`) (#11514)
## Summary

Rule `logging-warn` (`G010`) prescribes a change from `warn` to
`warning` and has a corresponding autofix, but the autofix is mistakenly
titled ```"Convert to `warn`"``` instead of ```"Convert to `warning`"```
(the latter is what the autofix actually does). Seems to be a plain
typo.
2024-05-24 13:13:42 +05:30
Jane Lewis 81275a6c3d
`ruff server`: An empty code action filter no longer returns notebook source actions (#11526)
## Summary

Fixes #11516

`ruff server` was sending both regular source actions and notebook
source actions back when passed an empty action filter. This PR makes a
few small changes so that notebook source actions are not sent when
regular source actions are sent, which means that an empty filter will
only return regular source actions.

## Test Plan

I confirmed that duplicate code actions no longer appeared in Neovim,
using a configuration similar to the one from the original issue.

<img width="509" alt="Screenshot 2024-05-23 at 11 48 48 PM"
src="https://github.com/astral-sh/ruff/assets/19577865/9a5d6907-dd41-48bd-b015-8a344c5e0b3f">
2024-05-24 07:20:39 +00:00
Charlie Marsh 52c946a4c5
Treat all `singledispatch` arguments as runtime-required (#11523)
## Summary

It turns out that `singledispatch` does end up evaluating all arguments,
even though only the first is used to dispatch.

Closes https://github.com/astral-sh/ruff/issues/11520.
2024-05-23 20:36:24 -04:00
Evan Kohilas ebdaf5765a
[flake8-async] Sleep with >24 hour interval should usually sleep forever (ASYNC116) (#11498)
## Summary

Addresses #8451 by implementing rule 116 to add an unsafe fix when sleep
is used with a >24 hour interval to instead consider sleeping forever.

This rule is added as async instead as I my understanding was that these
trio rules would be moved to async anyway.

There are a couple of TODOs, which address further extending the rule by
adding support for lookups and evaluations, and also supporting `anyio`.
2024-05-23 16:25:50 -04:00
Dhruv Manilawala 102b9d930f
Use `Importer` available on `Checker` (#11513)
## Summary

This PR updates the `FA102` rule logic to use the `Importer` which is
available on the `Checker`.

The main motivation is that this would make updating the `Importer` to
use the `Tokens` struct which will be required to remove the
`lex_starts_at` usage in `Insertion::start_of_block` method.

## Test Plan

`cargo insta test`
2024-05-23 11:19:08 +00:00
Jane Lewis 550aa871d3
Bump version to `v0.4.5` (#11502) 2024-05-23 01:09:01 +00:00
Charlie Marsh 3c22a3bdcc
Minor edits to `ruff server` docs (#11500)
## Summary

Minor copy edits based on my read-through. Feel free to disagree
anywhere.
2024-05-22 23:53:53 +00:00
Jane Lewis 6263923915
Update documentation for `ruff server` with new migration guide (#11499)
## Summary

Introduces a migration guide from `ruff-lsp` to `ruff server` and makes
small updates to the `README.md`.
2024-05-22 14:36:33 -07:00
Jane Lewis 94abea4b08
`ruff server`: Fix multiple issues with Neovim and Helix (#11497)
## Summary

Fixes https://github.com/astral-sh/ruff/issues/11236.

This PR fixes several issues, most of which relate to non-VS Code
editors (Helix and Neovim).

1. Global-only initialization options are now correctly deserialized
from Neovim and Helix
2. Empty diagnostics are now published correctly for Neovim and Helix.
3. A workspace folder is created at the current working directory if the
initialization parameters send an empty list of workspace folders.
4. The server now gracefully handles opening files outside of any known
workspace, and will use global fallback settings taken from client
editor settings and a user settings TOML, if it exists.

## Test Plan

I've tested to confirm that each issue has been fixed.

* Global-only initialization options are now correctly deserialized from
Neovim and Helix + the server gracefully handles opening files outside
of any known workspace


https://github.com/astral-sh/ruff/assets/19577865/4f33477f-20c8-4e50-8214-6608b1a1ea6b

* Empty diagnostics are now published correctly for Neovim and Helix


https://github.com/astral-sh/ruff/assets/19577865/c93f56a0-f75d-466f-9f40-d77f99cf0637

* A workspace folder is created at the current working directory if the
initialization parameters send an empty list of workspace folders.



https://github.com/astral-sh/ruff/assets/19577865/b4b2e818-4b0d-40ce-961d-5831478cc726
2024-05-22 20:50:58 +00:00
Charlie Marsh 519a65007f
Mark quotes as unnecessary for non-evaluated annotations (#11485)
## Summary

Similar to #11414, this PR extends `UP037` to flag quoted annotations
that are located in positions that won't be evaluated at runtime.

For example, the quotes on `Tuple` are unnecessary in:

```python
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from typing import Tuple


def foo():
    x: "Tuple[int, int]" = (0, 0)

foo()
```
2024-05-22 15:44:31 -04:00
Jane Lewis 573facd2ba
Fix automatic configuration reloading for text and notebook documents (#11492)
## Summary

Recent changes made in the [Jupyter Notebook feature
PR](https://github.com/astral-sh/ruff/pull/11206) caused automatic
configuration reloading to stop working. This was because we would check
for paths to reload using the changed path, when we should have been
using the parent path of the changed path (to get the directory it was
changed in).

Additionally, this PR fixes an issue where `ruff.toml` and `.ruff.toml`
files were not being automatically reloaded.

Finally, this PR improves configuration reloading by actively publishing
diagnostics for notebook documents (which won't be affected by the
workspace refresh since they don't use pull diagnostics). It will also
publish diagnostics for text documents if pull diagnostics aren't
supported.

## Test Plan
To test this, open an existing configuration file in a codebase, and
make modifications that will affect one or more open Python / Jupyter
Notebook files. You should observe that the diagnostics for both kinds
of files update automatically when the file changes are saved.

Here's a test video showing what a successful test should look like:



https://github.com/astral-sh/ruff/assets/19577865/7172b598-d6de-4965-b33c-6cb8b911ef6c
2024-05-22 11:20:45 -07:00
Jane Lewis 3cb2e677aa
`ruff.applyFormat` now formats an entire notebook document (#11493)
## Summary

Previously, `ruff.applyFormat`, seen in VS Code as the command `Ruff:
Format Document`, would only format the currently active notebook cell
inside a notebook document. This PR makes `ruff.applyFormat` format the
entire notebook document at once, operating on each code cell in order.

## Test Plan

1. Open a notebook document that has multiple unformatted code cells.
2. Run `Ruff: Format Document` through the Command Palette
(`Ctrl/Cmd+Shift+P` by default)
3. Observe that all code cells in the notebook have been formatted.
2024-05-22 09:02:46 -07:00
Dhruv Manilawala f0046ab28e
Move `has_comments` to `CommentRanges` (#11495)
## Summary

This PR moves the `has_comments` function from `Indexer` to
`CommentRanges`. The main motivation is that the `CommentRanges` will
now be built by the parser which is shared between the linter and the
formatter. Thus, the `CommentRanges` will be removed from the `Indexer`.

## Test Plan

`cargo test`
2024-05-22 13:35:16 +00:00
Charlie Marsh 5bb9720a10
Avoid multiline quotes warning with `quote-style = preserve` (#11490)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11063.
2024-05-22 04:31:03 +00:00
Charlie Marsh aa906b9c75
[`pylint`] Ignore `__slots__` with dynamic values (#11488)
## Summary

Closes https://github.com/astral-sh/ruff/issues/11333.
2024-05-22 04:18:01 +00:00
Charlie Marsh 8848eca3c6
[`pylint`] Remove `try` body from branch counting (#11487)
## Summary

Matching Pylint, we now omit the `try` body itself from branch counting.
Each `except` counts as a branch, as does the `else` and the `finally`.

Closes https://github.com/astral-sh/ruff/issues/11205.
2024-05-21 23:38:51 -04:00
Jane Lewis b0731ef9cb
`ruff server`: Support Jupyter Notebook (`*.ipynb`) files (#11206)
## Summary

Closes https://github.com/astral-sh/ruff/issues/10858.

`ruff server` now supports `*.ipynb` (aka Jupyter Notebook) files.
Extensive internal changes have been made to facilitate this, which I've
done some work to contextualize with documentation and an pre-review
that highlights notable sections of the code.

`*.ipynb` cells should behave similarly to `*.py` documents, with one
major exception. The format command `ruff.applyFormat` will only apply
to the currently selected notebook cell - if you want to format an
entire notebook document, use `Format Notebook` from the VS Code context
menu.

## Test Plan

The VS Code extension does not yet have Jupyter Notebook support
enabled, so you'll first need to enable it manually. To do this,
checkout the `pre-release` branch and modify `src/common/server.ts` as
follows:

Before:
![Screenshot 2024-05-13 at 10 59
06 PM](https://github.com/astral-sh/ruff/assets/19577865/c6a3c604-c405-4968-b8a2-5d670de89172)

After:
![Screenshot 2024-05-13 at 10 58
24 PM](https://github.com/astral-sh/ruff/assets/19577865/94ab2e3d-0609-448d-9c8c-cd07c69a513b)

I recommend testing this PR with large, complicated notebook files. I
used notebook files from [this popular
repository](https://github.com/jakevdp/PythonDataScienceHandbook/tree/master/notebooks)
in my preliminary testing.

The main thing to test is ensuring that notebook cells behave the same
as Python documents, besides the aforementioned issue with
`ruff.applyFormat`. You should also test adding and deleting cells (in
particular, deleting all the code cells and ensure that doesn't break
anything), changing the kind of a cell (i.e. from markup -> code or vice
versa), and creating a new notebook file from scratch. Finally, you
should also test that source actions work as expected (and across the
entire notebook).

Note: `ruff.applyAutofix` and `ruff.applyOrganizeImports` are currently
broken for notebook files, and I suspect it has something to do with
https://github.com/astral-sh/ruff/issues/11248. Once this is fixed, I
will update the test plan accordingly.

---------

Co-authored-by: nolan <nolan.king90@gmail.com>
2024-05-21 22:29:30 +00:00
Nicolas Jeker 84531d1644
Clarify motivation for E713 and E714 (#11483)
The wording 'negative comparison' is a rather vague description of the
'is not' operation and does not describe what the 'not in' operation
does (potentially copied from 'is not'). This was replaced with more
precise language to describe the operators taken from the official
python docs[1].

Both rules didn't have a strong reasoning besides 'it's bad, use the
other'. The origin of these rules seems to be PEP8[2] which prefers 'is
not' over 'not ... is' for readability. This is now reflected in the
description.

[1]:
https://docs.python.org/3/reference/expressions.html#membership-test-operations
[2]: https://peps.python.org/pep-0008/#programming-recommendations
2024-05-21 14:12:18 -05:00
Charlie Marsh 83b8b62e3e
Avoid flagging `__future__` annotations as required for non-evaluated type annotations (#11414)
## Summary

If an annotation won't be evaluated at runtime, we don't need to flag
`from __future__ import annotations` as required. This applies both to
quoted annotations and annotations outside of runtime-evaluated
positions, like:

```python
def main() -> None:
    a_list: list[str] | None = []
    a_list.append("hello")
```

Closes https://github.com/astral-sh/ruff/issues/11397.
2024-05-21 18:57:13 +00:00
plredmond 7225732859
F401 - update documentation and deprecate `ignore_init_module_imports` (#11436)
## Summary

* Update documentation for F401 following recent PRs
  * #11168
  * #11314
* Deprecate `ignore_init_module_imports`
* Add a deprecation pragma to the option and a "warn user once" message
when the option is used.
* Restore the old behavior for stable (non-preview) mode:
* When `ignore_init_module_imports` is set to `true` (default) there are
no `__init_.py` fixes (but we get nice fix titles!).
* When `ignore_init_module_imports` is set to `false` there are unsafe
`__init__.py` fixes to remove unused imports.
* When preview mode is enabled, it overrides
`ignore_init_module_imports`.
* Fixed a bug in fix titles where `import foo as bar` would recommend
reexporting `bar as bar`. It now says to reexport `foo as foo`. (In this
case we don't issue a fix, fwiw; it was just a fix title bug.)

## Test plan

Added new fixture tests that reuse the existing fixtures for
`__init__.py` files. Each of the three situations listed above has
fixture tests. The F401 "stable" tests cover:

> * When `ignore_init_module_imports` is set to `true` (default) there
are no `__init_.py` fixes (but we get nice fix titles!).

The F401 "deprecated option" tests cover:

> * When `ignore_init_module_imports` is set to `false` there are unsafe
`__init__.py` fixes to remove unused imports.

These complement existing "preview" tests that show the new behavior
which recommends fixes in `__init__.py` according to whether the import
is 1st party and other circumstances (for more on that behavior see:
#11314).
2024-05-21 09:23:45 -07:00
Dhruv Manilawala 403f0dccd8
Consider soft keywords for `E27` rules (#11446)
## Summary

This is a follow-up PR to #11445 update the `E27` rules to consider soft
keywords as well.

## Test Plan

Add test cases consisting of soft keywords and update the snapshot.
2024-05-20 05:38:06 +00:00
Charlie Marsh cfceb437a8
Treat escaped newline as valid sequence (#11465)
## Summary

We weren't treating the escaped newline as a valid condition to trigger
the safer fix (add an extra backslash before each invalid escape
sequence).

Closes https://github.com/astral-sh/ruff/issues/11461.
2024-05-19 03:32:32 +00:00