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Avoid duplicating linter-formatter compatibility warnings (#8292)

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## Summary

Uses `warn_user_once!` instead of `warn!` to ensure that every warning
is shown exactly once, regardless of whether there are duplicates in the
list, or warnings that are raised by multiple configuration files.

Closes #8271.
This commit is contained in:
Charlie Marsh 2023-10-30 16:32:55 -07:00 • committed by GitHub
parent 161c093c06
commit 7323c12eee
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2 changed files with 51 additions and 38 deletions
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81
crates/ruff_cli/src/commands/format.rs
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@ -11,6 +11,7 @@ use itertools::Itertools;
use log::{error, warn};
use rayon::iter::Either::{Left, Right};
use rayon::iter::{IntoParallelRefIterator, ParallelIterator};
use rustc_hash::FxHashSet;
use thiserror::Error;
use tracing::debug;
@ -695,11 +696,11 @@ pub(super) fn warn_incompatible_formatter_settings(
pyproject_config: &PyprojectConfig,
resolver: Option<&Resolver>,
) {
// First, collect all rules that are incompatible regardless of the linter-specific settings.
let mut incompatible_rules = FxHashSet::default();
for setting in std::iter::once(&pyproject_config.settings)
.chain(resolver.iter().flat_map(|resolver| resolver.settings()))
{
let mut incompatible_rules = Vec::new();
for rule in [
// The formatter might collapse implicit string concatenation on a single line.
Rule::SingleLineImplicitStringConcatenation,
@ -713,41 +714,48 @@ pub(super) fn warn_incompatible_formatter_settings(
Rule::MissingTrailingComma,
] {
if setting.linter.rules.enabled(rule) {
incompatible_rules.push(rule);
incompatible_rules.insert(rule);
}
}
}
// Rules asserting for space indentation
if setting.formatter.indent_style.is_tab() {
for rule in [Rule::TabIndentation, Rule::IndentWithSpaces] {
if setting.linter.rules.enabled(rule) {
incompatible_rules.push(rule);
}
}
if !incompatible_rules.is_empty() {
let mut rule_names: Vec<_> = incompatible_rules
.into_iter()
.map(|rule| format!("`{}`", rule.noqa_code()))
.collect();
rule_names.sort();
warn_user_once!("The following rules may cause conflicts when used with the formatter: {}. To avoid unexpected behavior, we recommend disabling these rules, either by removing them from the `select` or `extend-select` configuration, or adding them to the `ignore` configuration.", rule_names.join(", "));
}
// Next, validate settings-specific incompatibilities.
for setting in std::iter::once(&pyproject_config.settings)
.chain(resolver.iter().flat_map(|resolver| resolver.settings()))
{
// Validate all rules that rely on tab styles.
if setting.linter.rules.enabled(Rule::TabIndentation)
&& setting.formatter.indent_style.is_tab()
{
warn_user_once!("The `format.indent-style=\"tab\"` option is incompatible with `W191`, which lints against all uses of tabs. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`.");
}
// Rules asserting for indent-width=4
if setting.formatter.indent_width.value() != 4 {
for rule in [
Rule::IndentationWithInvalidMultiple,
Rule::IndentationWithInvalidMultipleComment,
] {
if setting.linter.rules.enabled(rule) {
incompatible_rules.push(rule);
}
}
// Validate all rules that rely on tab styles.
if setting.linter.rules.enabled(Rule::IndentWithSpaces)
&& setting.formatter.indent_style.is_tab()
{
warn_user_once!("The `format.indent-style=\"tab\"` option is incompatible with `D206`, with requires space-based indentation. We recommend disabling these rules when using the formatter, which enforces a consistent indentation style. Alternatively, set the `format.indent-style` option to `\"space\"`.");
}
if !incompatible_rules.is_empty() {
let mut rule_names: Vec<_> = incompatible_rules
.into_iter()
.map(|rule| format!("`{}`", rule.noqa_code()))
.collect();
rule_names.sort();
warn!("The following rules may cause conflicts when used with the formatter: {}. To avoid unexpected behavior, we recommend disabling these rules, either by removing them from the `select` or `extend-select` configuration, or adding them to the `ignore` configuration.", rule_names.join(", "));
// Validate all rules that rely on custom indent widths.
if setting.linter.rules.any_enabled(&[
Rule::IndentationWithInvalidMultiple,
Rule::IndentationWithInvalidMultipleComment,
]) && setting.formatter.indent_width.value() != 4
{
warn_user_once!("The `format.indent-width` option with a value other than 4 is incompatible with `E111` and `E114`. We recommend disabling these rules when using the formatter, which enforces a consistent indentation width. Alternatively, set the `format.indent-width` option to `4`.");
}
// Rules with different quote styles.
// Validate all rules that rely on quote styles.
if setting
.linter
.rules
@ -758,10 +766,10 @@ pub(super) fn warn_incompatible_formatter_settings(
setting.formatter.quote_style,
) {
(Quote::Double, QuoteStyle::Single) => {
warn!("The `flake8-quotes.inline-quotes=\"double\"` option is incompatible with the formatter's `format.quote-style=\"single\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
warn_user_once!("The `flake8-quotes.inline-quotes=\"double\"` option is incompatible with the formatter's `format.quote-style=\"single\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
}
(Quote::Single, QuoteStyle::Double) => {
warn!("The `flake8-quotes.inline-quotes=\"single\"` option is incompatible with the formatter's `format.quote-style=\"double\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
warn_user_once!("The `flake8-quotes.inline-quotes=\"single\"` option is incompatible with the formatter's `format.quote-style=\"double\"`. We recommend disabling `Q000` and `Q003` when using the formatter, which enforces a consistent quote style. Alternatively, set both options to either `\"single\"` or `\"double\"`.");
}
_ => {}
}
@ -770,25 +778,26 @@ pub(super) fn warn_incompatible_formatter_settings(
if setting.linter.rules.enabled(Rule::BadQuotesMultilineString)
&& setting.linter.flake8_quotes.multiline_quotes == Quote::Single
{
warn!("The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q001` when using the formatter, which enforces double quotes for multiline strings. Alternatively, set the `flake8-quotes.multiline-quotes` option to `\"double\"`.`");
warn_user_once!("The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q001` when using the formatter, which enforces double quotes for multiline strings. Alternatively, set the `flake8-quotes.multiline-quotes` option to `\"double\"`.`");
}
if setting.linter.rules.enabled(Rule::BadQuotesDocstring)
&& setting.linter.flake8_quotes.docstring_quotes == Quote::Single
{
warn!("The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q002` when using the formatter, which enforces double quotes for docstrings. Alternatively, set the `flake8-quotes.docstring-quotes` option to `\"double\"`.`");
warn_user_once!("The `flake8-quotes.multiline-quotes=\"single\"` option is incompatible with the formatter. We recommend disabling `Q002` when using the formatter, which enforces double quotes for docstrings. Alternatively, set the `flake8-quotes.docstring-quotes` option to `\"double\"`.`");
}
// Validate all isort settings.
if setting.linter.rules.enabled(Rule::UnsortedImports) {
// The formatter removes empty lines if the value is larger than 2 but always inserts a empty line after imports.
// Two empty lines are okay because `isort` only uses this setting for top-level imports (not in nested blocks).
if !matches!(setting.linter.isort.lines_after_imports, 1 | 2 | -1) {
warn!("The isort option `isort.lines-after-imports` with a value other than `-1`, `1` or `2` is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `2`, `1`, or `-1` (default).");
warn_user_once!("The isort option `isort.lines-after-imports` with a value other than `-1`, `1` or `2` is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `2`, `1`, or `-1` (default).");
}
// Values larger than two get reduced to one line by the formatter if the import is in a nested block.
if setting.linter.isort.lines_between_types > 1 {
warn!("The isort option `isort.lines-between-types` with a value greater than 1 is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `1` or `0` (default).");
warn_user_once!("The isort option `isort.lines-between-types` with a value greater than 1 is incompatible with the formatter. To avoid unexpected behavior, we recommend setting the option to one of: `1` or `0` (default).");
}
// isort inserts a trailing comma which the formatter preserves, but only if `skip-magic-trailing-comma` isn't false.
@ -797,11 +806,11 @@ pub(super) fn warn_incompatible_formatter_settings(
&& !setting.linter.isort.force_single_line
{
if setting.linter.isort.force_wrap_aliases {
warn!("The isort option `isort.force-wrap-aliases` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.force-wrap-aliases=false` or `format.skip-magic-trailing-comma=false`.");
warn_user_once!("The isort option `isort.force-wrap-aliases` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.force-wrap-aliases=false` or `format.skip-magic-trailing-comma=false`.");
}
if setting.linter.isort.split_on_trailing_comma {
warn!("The isort option `isort.split-on-trailing-comma` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.split-on-trailing-comma=false` or `format.skip-magic-trailing-comma=false`.");
warn_user_once!("The isort option `isort.split-on-trailing-comma` is incompatible with the formatter `format.skip-magic-trailing-comma=true` option. To avoid unexpected behavior, we recommend either setting `isort.split-on-trailing-comma=false` or `format.skip-magic-trailing-comma=false`.");
}
}
}