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configuration.rs
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configuration.rs
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//! User-provided program settings, taking into account pyproject.toml and
//! command-line options. Structure mirrors the user-facing representation of
//! the various parameters.
use std::borrow::Cow;
use std::env::VarError;
use std::num::{NonZeroU16, NonZeroU8};
use std::path::{Path, PathBuf};
use std::str::FromStr;
use anyhow::{anyhow, Result};
use glob::{glob, GlobError, Paths, PatternError};
use itertools::Itertools;
use regex::Regex;
use rustc_hash::{FxHashMap, FxHashSet};
use shellexpand;
use shellexpand::LookupError;
use strum::IntoEnumIterator;
use ruff_cache::cache_dir;
use ruff_formatter::IndentStyle;
use ruff_linter::line_width::{IndentWidth, LineLength};
use ruff_linter::registry::RuleNamespace;
use ruff_linter::registry::{Rule, RuleSet, INCOMPATIBLE_CODES};
use ruff_linter::rule_selector::{PreviewOptions, Specificity};
use ruff_linter::rules::pycodestyle;
use ruff_linter::settings::fix_safety_table::FixSafetyTable;
use ruff_linter::settings::rule_table::RuleTable;
use ruff_linter::settings::types::{
ExtensionMapping, FilePattern, FilePatternSet, PerFileIgnore, PerFileIgnores, PreviewMode,
PythonVersion, RequiredVersion, SerializationFormat, UnsafeFixes,
};
use ruff_linter::settings::{LinterSettings, DEFAULT_SELECTORS, DUMMY_VARIABLE_RGX, TASK_TAGS};
use ruff_linter::{
fs, warn_user_once, warn_user_once_by_id, warn_user_once_by_message, RuleSelector,
RUFF_PKG_VERSION,
};
use ruff_python_formatter::{
DocstringCode, DocstringCodeLineWidth, MagicTrailingComma, QuoteStyle,
};
use crate::options::{
Flake8AnnotationsOptions, Flake8BanditOptions, Flake8BugbearOptions, Flake8BuiltinsOptions,
Flake8ComprehensionsOptions, Flake8CopyrightOptions, Flake8ErrMsgOptions, Flake8GetTextOptions,
Flake8ImplicitStrConcatOptions, Flake8ImportConventionsOptions, Flake8PytestStyleOptions,
Flake8QuotesOptions, Flake8SelfOptions, Flake8TidyImportsOptions, Flake8TypeCheckingOptions,
Flake8UnusedArgumentsOptions, FormatOptions, IsortOptions, LintCommonOptions, LintOptions,
McCabeOptions, Options, Pep8NamingOptions, PyUpgradeOptions, PycodestyleOptions,
PydocstyleOptions, PyflakesOptions, PylintOptions,
};
use crate::settings::{
FileResolverSettings, FormatterSettings, LineEnding, Settings, EXCLUDE, INCLUDE,
};
#[derive(Clone, Debug, Default)]
pub struct RuleSelection {
pub select: Option<Vec<RuleSelector>>,
pub ignore: Vec<RuleSelector>,
pub extend_select: Vec<RuleSelector>,
pub fixable: Option<Vec<RuleSelector>>,
pub unfixable: Vec<RuleSelector>,
pub extend_fixable: Vec<RuleSelector>,
}
#[derive(Debug, Eq, PartialEq, is_macro::Is)]
pub enum RuleSelectorKind {
/// Enables the selected rules
Enable,
/// Disables the selected rules
Disable,
/// Modifies the behavior of selected rules
Modify,
}
impl RuleSelection {
pub fn selectors_by_kind(&self) -> impl Iterator<Item = (RuleSelectorKind, &RuleSelector)> {
self.select
.iter()
.flatten()
.map(|selector| (RuleSelectorKind::Enable, selector))
.chain(
self.fixable
.iter()
.flatten()
.map(|selector| (RuleSelectorKind::Modify, selector)),
)
.chain(
self.ignore
.iter()
.map(|selector| (RuleSelectorKind::Disable, selector)),
)
.chain(
self.extend_select
.iter()
.map(|selector| (RuleSelectorKind::Enable, selector)),
)
.chain(
self.unfixable
.iter()
.map(|selector| (RuleSelectorKind::Modify, selector)),
)
.chain(
self.extend_fixable
.iter()
.map(|selector| (RuleSelectorKind::Modify, selector)),
)
}
}
#[derive(Debug, Default, Clone)]
pub struct Configuration {
// Global options
pub cache_dir: Option<PathBuf>,
pub extend: Option<PathBuf>,
pub fix: Option<bool>,
pub fix_only: Option<bool>,
pub unsafe_fixes: Option<UnsafeFixes>,
pub output_format: Option<SerializationFormat>,
pub preview: Option<PreviewMode>,
pub required_version: Option<RequiredVersion>,
pub extension: Option<ExtensionMapping>,
pub show_fixes: Option<bool>,
// File resolver options
pub exclude: Option<Vec<FilePattern>>,
pub extend_exclude: Vec<FilePattern>,
pub extend_include: Vec<FilePattern>,
pub force_exclude: Option<bool>,
pub include: Option<Vec<FilePattern>>,
pub respect_gitignore: Option<bool>,
// Generic python options settings
pub builtins: Option<Vec<String>>,
pub namespace_packages: Option<Vec<PathBuf>>,
pub src: Option<Vec<PathBuf>>,
pub target_version: Option<PythonVersion>,
// Global formatting options
pub line_length: Option<LineLength>,
pub indent_width: Option<IndentWidth>,
pub lint: LintConfiguration,
pub format: FormatConfiguration,
}
impl Configuration {
pub fn into_settings(self, project_root: &Path) -> Result<Settings> {
if let Some(required_version) = &self.required_version {
let ruff_pkg_version = pep440_rs::Version::from_str(RUFF_PKG_VERSION)
.expect("RUFF_PKG_VERSION is not a valid PEP 440 version specifier");
if !required_version.contains(&ruff_pkg_version) {
return Err(anyhow!(
"Required version `{}` does not match the running version `{}`",
required_version,
RUFF_PKG_VERSION
));
}
}
let target_version = self.target_version.unwrap_or_default();
let global_preview = self.preview.unwrap_or_default();
let format = self.format;
let format_defaults = FormatterSettings::default();
let quote_style = format.quote_style.unwrap_or(format_defaults.quote_style);
let format_preview = match format.preview.unwrap_or(global_preview) {
PreviewMode::Disabled => ruff_python_formatter::PreviewMode::Disabled,
PreviewMode::Enabled => ruff_python_formatter::PreviewMode::Enabled,
};
let formatter = FormatterSettings {
exclude: FilePatternSet::try_from_iter(format.exclude.unwrap_or_default())?,
extension: self.extension.clone().unwrap_or_default(),
preview: format_preview,
target_version: match target_version {
PythonVersion::Py37 => ruff_python_formatter::PythonVersion::Py37,
PythonVersion::Py38 => ruff_python_formatter::PythonVersion::Py38,
PythonVersion::Py39 => ruff_python_formatter::PythonVersion::Py39,
PythonVersion::Py310 => ruff_python_formatter::PythonVersion::Py310,
PythonVersion::Py311 => ruff_python_formatter::PythonVersion::Py311,
PythonVersion::Py312 => ruff_python_formatter::PythonVersion::Py312,
},
line_width: self
.line_length
.map_or(format_defaults.line_width, |length| {
ruff_formatter::LineWidth::from(NonZeroU16::from(length))
}),
line_ending: format.line_ending.unwrap_or(format_defaults.line_ending),
indent_style: format.indent_style.unwrap_or(format_defaults.indent_style),
indent_width: self
.indent_width
.map_or(format_defaults.indent_width, |tab_size| {
ruff_formatter::IndentWidth::from(NonZeroU8::from(tab_size))
}),
quote_style,
magic_trailing_comma: format
.magic_trailing_comma
.unwrap_or(format_defaults.magic_trailing_comma),
docstring_code_format: format
.docstring_code_format
.unwrap_or(format_defaults.docstring_code_format),
docstring_code_line_width: format
.docstring_code_line_width
.unwrap_or(format_defaults.docstring_code_line_width),
};
let lint = self.lint;
let lint_preview = lint.preview.unwrap_or(global_preview);
let line_length = self.line_length.unwrap_or_default();
Ok(Settings {
cache_dir: self
.cache_dir
.clone()
.unwrap_or_else(|| cache_dir(project_root)),
fix: self.fix.unwrap_or(false),
fix_only: self.fix_only.unwrap_or(false),
unsafe_fixes: self.unsafe_fixes.unwrap_or_default(),
output_format: self
.output_format
.unwrap_or_else(|| SerializationFormat::default(global_preview.is_enabled())),
show_fixes: self.show_fixes.unwrap_or(false),
file_resolver: FileResolverSettings {
exclude: FilePatternSet::try_from_iter(
self.exclude.unwrap_or_else(|| EXCLUDE.to_vec()),
)?,
extend_exclude: FilePatternSet::try_from_iter(self.extend_exclude)?,
extend_include: FilePatternSet::try_from_iter(self.extend_include)?,
force_exclude: self.force_exclude.unwrap_or(false),
include: FilePatternSet::try_from_iter(
self.include.unwrap_or_else(|| INCLUDE.to_vec()),
)?,
respect_gitignore: self.respect_gitignore.unwrap_or(true),
project_root: project_root.to_path_buf(),
},
#[allow(deprecated)]
linter: LinterSettings {
rules: lint.as_rule_table(lint_preview)?,
exclude: FilePatternSet::try_from_iter(lint.exclude.unwrap_or_default())?,
extension: self.extension.unwrap_or_default(),
preview: lint_preview,
target_version,
project_root: project_root.to_path_buf(),
allowed_confusables: lint
.allowed_confusables
.map(FxHashSet::from_iter)
.unwrap_or_default(),
builtins: self.builtins.unwrap_or_default(),
dummy_variable_rgx: lint
.dummy_variable_rgx
.unwrap_or_else(|| DUMMY_VARIABLE_RGX.clone()),
external: lint.external.unwrap_or_default(),
ignore_init_module_imports: lint.ignore_init_module_imports.unwrap_or(true),
line_length,
tab_size: self.indent_width.unwrap_or_default(),
namespace_packages: self.namespace_packages.unwrap_or_default(),
per_file_ignores: PerFileIgnores::resolve(
lint.per_file_ignores
.unwrap_or_default()
.into_iter()
.chain(lint.extend_per_file_ignores)
.collect(),
)?,
fix_safety: FixSafetyTable::from_rule_selectors(
&lint.extend_safe_fixes,
&lint.extend_unsafe_fixes,
&PreviewOptions {
mode: lint_preview,
require_explicit: false,
},
),
src: self.src.unwrap_or_else(|| vec![project_root.to_path_buf()]),
explicit_preview_rules: lint.explicit_preview_rules.unwrap_or_default(),
task_tags: lint
.task_tags
.unwrap_or_else(|| TASK_TAGS.iter().map(ToString::to_string).collect()),
logger_objects: lint.logger_objects.unwrap_or_default(),
typing_modules: lint.typing_modules.unwrap_or_default(),
// Plugins
flake8_annotations: lint
.flake8_annotations
.map(Flake8AnnotationsOptions::into_settings)
.unwrap_or_default(),
flake8_bandit: lint
.flake8_bandit
.map(Flake8BanditOptions::into_settings)
.unwrap_or_default(),
flake8_bugbear: lint
.flake8_bugbear
.map(Flake8BugbearOptions::into_settings)
.unwrap_or_default(),
flake8_builtins: lint
.flake8_builtins
.map(Flake8BuiltinsOptions::into_settings)
.unwrap_or_default(),
flake8_comprehensions: lint
.flake8_comprehensions
.map(Flake8ComprehensionsOptions::into_settings)
.unwrap_or_default(),
flake8_copyright: lint
.flake8_copyright
.map(Flake8CopyrightOptions::try_into_settings)
.transpose()?
.unwrap_or_default(),
flake8_errmsg: lint
.flake8_errmsg
.map(Flake8ErrMsgOptions::into_settings)
.unwrap_or_default(),
flake8_implicit_str_concat: lint
.flake8_implicit_str_concat
.map(Flake8ImplicitStrConcatOptions::into_settings)
.unwrap_or_default(),
flake8_import_conventions: lint
.flake8_import_conventions
.map(Flake8ImportConventionsOptions::into_settings)
.unwrap_or_default(),
flake8_pytest_style: lint
.flake8_pytest_style
.map(Flake8PytestStyleOptions::try_into_settings)
.transpose()?
.unwrap_or_default(),
flake8_quotes: lint
.flake8_quotes
.map(Flake8QuotesOptions::into_settings)
.unwrap_or_default(),
flake8_self: lint
.flake8_self
.map(Flake8SelfOptions::into_settings)
.unwrap_or_default(),
flake8_tidy_imports: lint
.flake8_tidy_imports
.map(Flake8TidyImportsOptions::into_settings)
.unwrap_or_default(),
flake8_type_checking: lint
.flake8_type_checking
.map(Flake8TypeCheckingOptions::into_settings)
.unwrap_or_default(),
flake8_unused_arguments: lint
.flake8_unused_arguments
.map(Flake8UnusedArgumentsOptions::into_settings)
.unwrap_or_default(),
flake8_gettext: lint
.flake8_gettext
.map(Flake8GetTextOptions::into_settings)
.unwrap_or_default(),
isort: lint
.isort
.map(IsortOptions::try_into_settings)
.transpose()?
.unwrap_or_default(),
mccabe: lint
.mccabe
.map(McCabeOptions::into_settings)
.unwrap_or_default(),
pep8_naming: lint
.pep8_naming
.map(Pep8NamingOptions::try_into_settings)
.transpose()?
.unwrap_or_default(),
pycodestyle: if let Some(pycodestyle) = lint.pycodestyle {
pycodestyle.into_settings(line_length)
} else {
pycodestyle::settings::Settings {
max_line_length: line_length,
..pycodestyle::settings::Settings::default()
}
},
pydocstyle: lint
.pydocstyle
.map(PydocstyleOptions::into_settings)
.unwrap_or_default(),
pyflakes: lint
.pyflakes
.map(PyflakesOptions::into_settings)
.unwrap_or_default(),
pylint: lint
.pylint
.map(PylintOptions::into_settings)
.unwrap_or_default(),
pyupgrade: lint
.pyupgrade
.map(PyUpgradeOptions::into_settings)
.unwrap_or_default(),
},
formatter,
})
}
/// Convert the [`Options`] read from the given [`Path`] into a [`Configuration`].
/// If `None` is supplied for `path`, it indicates that the `Options` instance
/// was created via "inline TOML" from the `--config` flag
pub fn from_options(
options: Options,
path: Option<&Path>,
project_root: &Path,
) -> Result<Self> {
warn_about_deprecated_top_level_lint_options(&options.lint_top_level.0, path);
let lint = if let Some(mut lint) = options.lint {
lint.common = lint.common.combine(options.lint_top_level.0);
lint
} else {
LintOptions {
common: options.lint_top_level.0,
..LintOptions::default()
}
};
#[allow(deprecated)]
let indent_width = {
if options.tab_size.is_some() {
warn_user_once!("The `tab-size` option has been renamed to `indent-width` to emphasize that it configures the indentation used by the formatter as well as the tab width. Please update your configuration to use `indent-width = <value>` instead.");
}
options.indent_width.or(options.tab_size)
};
#[allow(deprecated)]
let output_format = {
if options.show_source.is_some() {
warn_user_once!(
r#"The `show-source` option has been deprecated in favor of `output-format`'s "full" and "concise" variants. Please update your configuration to use `output-format = <full|concise>` instead."#
);
}
options
.output_format
.map(|format| match format {
SerializationFormat::Text => {
warn_user_once!(r#"Setting `output_format` to "text" is deprecated. Use "full" or "concise" instead. "text" will be treated as "{}"."#, SerializationFormat::default(options.preview.unwrap_or_default()));
SerializationFormat::default(options.preview.unwrap_or_default())
},
other => other
})
.or(options.show_source.map(|show_source| {
if show_source {
SerializationFormat::Full
} else {
SerializationFormat::Concise
}
}))
};
Ok(Self {
builtins: options.builtins,
cache_dir: options
.cache_dir
.map(|dir| {
let dir = shellexpand::full(&dir);
dir.map(|dir| fs::normalize_path_to(dir.as_ref(), project_root))
})
.transpose()
.map_err(|e| anyhow!("Invalid `cache-dir` value: {e}"))?,
exclude: options.exclude.map(|paths| {
paths
.into_iter()
.map(|pattern| {
let absolute = fs::normalize_path_to(&pattern, project_root);
FilePattern::User(pattern, absolute)
})
.collect()
}),
extend: options
.extend
.map(|extend| {
let extend = shellexpand::full(&extend);
extend.map(|extend| PathBuf::from(extend.as_ref()))
})
.transpose()
.map_err(|e| anyhow!("Invalid `extend` value: {e}"))?,
extend_exclude: options
.extend_exclude
.map(|paths| {
paths
.into_iter()
.map(|pattern| {
let absolute = fs::normalize_path_to(&pattern, project_root);
FilePattern::User(pattern, absolute)
})
.collect()
})
.unwrap_or_default(),
extend_include: options
.extend_include
.map(|paths| {
paths
.into_iter()
.map(|pattern| {
let absolute = fs::normalize_path_to(&pattern, project_root);
FilePattern::User(pattern, absolute)
})
.collect()
})
.unwrap_or_default(),
include: options.include.map(|paths| {
paths
.into_iter()
.map(|pattern| {
let absolute = fs::normalize_path_to(&pattern, project_root);
FilePattern::User(pattern, absolute)
})
.collect()
}),
fix: options.fix,
fix_only: options.fix_only,
unsafe_fixes: options.unsafe_fixes.map(UnsafeFixes::from),
output_format,
force_exclude: options.force_exclude,
line_length: options.line_length,
indent_width,
namespace_packages: options
.namespace_packages
.map(|namespace_package| resolve_src(&namespace_package, project_root))
.transpose()?,
preview: options.preview.map(PreviewMode::from),
required_version: options.required_version,
respect_gitignore: options.respect_gitignore,
show_fixes: options.show_fixes,
src: options
.src
.map(|src| resolve_src(&src, project_root))
.transpose()?,
target_version: options.target_version,
// `--extension` is a hidden command-line argument that isn't supported in configuration
// files at present.
extension: None,
lint: LintConfiguration::from_options(lint, project_root)?,
format: FormatConfiguration::from_options(
options.format.unwrap_or_default(),
project_root,
)?,
})
}
#[must_use]
pub fn combine(self, config: Self) -> Self {
Self {
builtins: self.builtins.or(config.builtins),
cache_dir: self.cache_dir.or(config.cache_dir),
exclude: self.exclude.or(config.exclude),
extend: self.extend.or(config.extend),
extend_exclude: config
.extend_exclude
.into_iter()
.chain(self.extend_exclude)
.collect(),
extend_include: config
.extend_include
.into_iter()
.chain(self.extend_include)
.collect(),
include: self.include.or(config.include),
fix: self.fix.or(config.fix),
fix_only: self.fix_only.or(config.fix_only),
unsafe_fixes: self.unsafe_fixes.or(config.unsafe_fixes),
output_format: self.output_format.or(config.output_format),
force_exclude: self.force_exclude.or(config.force_exclude),
line_length: self.line_length.or(config.line_length),
indent_width: self.indent_width.or(config.indent_width),
namespace_packages: self.namespace_packages.or(config.namespace_packages),
required_version: self.required_version.or(config.required_version),
respect_gitignore: self.respect_gitignore.or(config.respect_gitignore),
show_fixes: self.show_fixes.or(config.show_fixes),
src: self.src.or(config.src),
target_version: self.target_version.or(config.target_version),
preview: self.preview.or(config.preview),
extension: self.extension.or(config.extension),
lint: self.lint.combine(config.lint),
format: self.format.combine(config.format),
}
}
}
#[derive(Clone, Debug, Default)]
pub struct LintConfiguration {
pub exclude: Option<Vec<FilePattern>>,
pub preview: Option<PreviewMode>,
// Rule selection
pub extend_per_file_ignores: Vec<PerFileIgnore>,
pub per_file_ignores: Option<Vec<PerFileIgnore>>,
pub rule_selections: Vec<RuleSelection>,
pub explicit_preview_rules: Option<bool>,
// Fix configuration
pub extend_unsafe_fixes: Vec<RuleSelector>,
pub extend_safe_fixes: Vec<RuleSelector>,
// Global lint settings
pub allowed_confusables: Option<Vec<char>>,
pub dummy_variable_rgx: Option<Regex>,
pub external: Option<Vec<String>>,
pub ignore_init_module_imports: Option<bool>,
pub logger_objects: Option<Vec<String>>,
pub task_tags: Option<Vec<String>>,
pub typing_modules: Option<Vec<String>>,
// Plugins
pub flake8_annotations: Option<Flake8AnnotationsOptions>,
pub flake8_bandit: Option<Flake8BanditOptions>,
pub flake8_bugbear: Option<Flake8BugbearOptions>,
pub flake8_builtins: Option<Flake8BuiltinsOptions>,
pub flake8_comprehensions: Option<Flake8ComprehensionsOptions>,
pub flake8_copyright: Option<Flake8CopyrightOptions>,
pub flake8_errmsg: Option<Flake8ErrMsgOptions>,
pub flake8_gettext: Option<Flake8GetTextOptions>,
pub flake8_implicit_str_concat: Option<Flake8ImplicitStrConcatOptions>,
pub flake8_import_conventions: Option<Flake8ImportConventionsOptions>,
pub flake8_pytest_style: Option<Flake8PytestStyleOptions>,
pub flake8_quotes: Option<Flake8QuotesOptions>,
pub flake8_self: Option<Flake8SelfOptions>,
pub flake8_tidy_imports: Option<Flake8TidyImportsOptions>,
pub flake8_type_checking: Option<Flake8TypeCheckingOptions>,
pub flake8_unused_arguments: Option<Flake8UnusedArgumentsOptions>,
pub isort: Option<IsortOptions>,
pub mccabe: Option<McCabeOptions>,
pub pep8_naming: Option<Pep8NamingOptions>,
pub pycodestyle: Option<PycodestyleOptions>,
pub pydocstyle: Option<PydocstyleOptions>,
pub pyflakes: Option<PyflakesOptions>,
pub pylint: Option<PylintOptions>,
pub pyupgrade: Option<PyUpgradeOptions>,
}
impl LintConfiguration {
fn from_options(options: LintOptions, project_root: &Path) -> Result<Self> {
#[allow(deprecated)]
let ignore = options
.common
.ignore
.into_iter()
.flatten()
.chain(options.common.extend_ignore.into_iter().flatten())
.collect();
#[allow(deprecated)]
let unfixable = options
.common
.unfixable
.into_iter()
.flatten()
.chain(options.common.extend_unfixable.into_iter().flatten())
.collect();
#[allow(deprecated)]
let ignore_init_module_imports = options.common.ignore_init_module_imports;
Ok(LintConfiguration {
exclude: options.exclude.map(|paths| {
paths
.into_iter()
.map(|pattern| {
let absolute = fs::normalize_path_to(&pattern, project_root);
FilePattern::User(pattern, absolute)
})
.collect()
}),
preview: options.preview.map(PreviewMode::from),
rule_selections: vec![RuleSelection {
select: options.common.select,
ignore,
extend_select: options.common.extend_select.unwrap_or_default(),
fixable: options.common.fixable,
unfixable,
extend_fixable: options.common.extend_fixable.unwrap_or_default(),
}],
extend_safe_fixes: options.common.extend_safe_fixes.unwrap_or_default(),
extend_unsafe_fixes: options.common.extend_unsafe_fixes.unwrap_or_default(),
allowed_confusables: options.common.allowed_confusables,
dummy_variable_rgx: options
.common
.dummy_variable_rgx
.map(|pattern| Regex::new(&pattern))
.transpose()
.map_err(|e| anyhow!("Invalid `dummy-variable-rgx` value: {e}"))?,
extend_per_file_ignores: options
.common
.extend_per_file_ignores
.map(|per_file_ignores| {
per_file_ignores
.into_iter()
.map(|(pattern, prefixes)| {
PerFileIgnore::new(pattern, &prefixes, Some(project_root))
})
.collect()
})
.unwrap_or_default(),
external: options.common.external,
ignore_init_module_imports,
explicit_preview_rules: options.common.explicit_preview_rules,
per_file_ignores: options.common.per_file_ignores.map(|per_file_ignores| {
per_file_ignores
.into_iter()
.map(|(pattern, prefixes)| {
PerFileIgnore::new(pattern, &prefixes, Some(project_root))
})
.collect()
}),
task_tags: options.common.task_tags,
logger_objects: options.common.logger_objects,
typing_modules: options.common.typing_modules,
// Plugins
flake8_annotations: options.common.flake8_annotations,
flake8_bandit: options.common.flake8_bandit,
flake8_bugbear: options.common.flake8_bugbear,
flake8_builtins: options.common.flake8_builtins,
flake8_comprehensions: options.common.flake8_comprehensions,
flake8_copyright: options.common.flake8_copyright,
flake8_errmsg: options.common.flake8_errmsg,
flake8_gettext: options.common.flake8_gettext,
flake8_implicit_str_concat: options.common.flake8_implicit_str_concat,
flake8_import_conventions: options.common.flake8_import_conventions,
flake8_pytest_style: options.common.flake8_pytest_style,
flake8_quotes: options.common.flake8_quotes,
flake8_self: options.common.flake8_self,
flake8_tidy_imports: options.common.flake8_tidy_imports,
flake8_type_checking: options.common.flake8_type_checking,
flake8_unused_arguments: options.common.flake8_unused_arguments,
isort: options.common.isort,
mccabe: options.common.mccabe,
pep8_naming: options.common.pep8_naming,
pycodestyle: options.common.pycodestyle,
pydocstyle: options.common.pydocstyle,
pyflakes: options.common.pyflakes,
pylint: options.common.pylint,
pyupgrade: options.common.pyupgrade,
})
}
fn as_rule_table(&self, preview: PreviewMode) -> Result<RuleTable> {
let preview = PreviewOptions {
mode: preview,
require_explicit: self.explicit_preview_rules.unwrap_or_default(),
};
// The select_set keeps track of which rules have been selected.
let mut select_set: RuleSet = DEFAULT_SELECTORS
.iter()
.flat_map(|selector| selector.rules(&preview))
.collect();
// The fixable set keeps track of which rules are fixable.
let mut fixable_set: RuleSet = RuleSelector::All.all_rules().collect();
// Ignores normally only subtract from the current set of selected
// rules. By that logic the ignore in `select = [], ignore = ["E501"]`
// would be effectless. Instead we carry over the ignores to the next
// selection in that case, creating a way for ignores to be reused
// across config files (which otherwise wouldn't be possible since ruff
// only has `extended` but no `extended-by`).
let mut carryover_ignores: Option<&[RuleSelector]> = None;
let mut carryover_unfixables: Option<&[RuleSelector]> = None;
// Store selectors for displaying warnings
let mut redirects = FxHashMap::default();
let mut deprecated_nursery_selectors = FxHashSet::default();
let mut deprecated_selectors = FxHashSet::default();
let mut removed_selectors = FxHashSet::default();
let mut ignored_preview_selectors = FxHashSet::default();
// Track which docstring rules are specifically enabled
// which lets us override the docstring convention ignore-list
let mut docstring_overrides: FxHashSet<Rule> = FxHashSet::default();
for selection in &self.rule_selections {
// If a selection only specifies extend-select we cannot directly
// apply its rule selectors to the select_set because we firstly have
// to resolve the effectively selected rules within the current rule selection
// (taking specificity into account since more specific selectors take
// precedence over less specific selectors within a rule selection).
// We do this via the following HashMap where the bool indicates
// whether to enable or disable the given rule.
let mut select_map_updates: FxHashMap<Rule, bool> = FxHashMap::default();
let mut fixable_map_updates: FxHashMap<Rule, bool> = FxHashMap::default();
let mut docstring_override_updates: FxHashSet<Rule> = FxHashSet::default();
let carriedover_ignores = carryover_ignores.take();
let carriedover_unfixables = carryover_unfixables.take();
for spec in Specificity::iter() {
// Iterate over rule selectors in order of specificity.
for selector in selection
.select
.iter()
.flatten()
.chain(selection.extend_select.iter())
.filter(|s| s.specificity() == spec)
{
for rule in selector.rules(&preview) {
select_map_updates.insert(rule, true);
if spec == Specificity::Rule {
docstring_override_updates.insert(rule);
}
}
}
for selector in selection
.ignore
.iter()
.chain(carriedover_ignores.into_iter().flatten())
.filter(|s| s.specificity() == spec)
{
for rule in selector.rules(&preview) {
select_map_updates.insert(rule, false);
}
}
// Apply the same logic to `fixable` and `unfixable`.
for selector in selection
.fixable
.iter()
.flatten()
.chain(selection.extend_fixable.iter())
.filter(|s| s.specificity() == spec)
{
for rule in selector.all_rules() {
fixable_map_updates.insert(rule, true);
}
}
for selector in selection
.unfixable
.iter()
.chain(carriedover_unfixables.into_iter().flatten())
.filter(|s| s.specificity() == spec)
{
for rule in selector.all_rules() {
fixable_map_updates.insert(rule, false);
}
}
}
if let Some(select) = &selection.select {
// If the `select` option is given we reassign the whole select_set
// (overriding everything that has been defined previously).
select_set = select_map_updates
.into_iter()
.filter_map(|(rule, enabled)| enabled.then_some(rule))
.collect();
if select.is_empty()
&& selection.extend_select.is_empty()
&& !selection.ignore.is_empty()
{
carryover_ignores = Some(&selection.ignore);
}
docstring_overrides = docstring_override_updates;
} else {
// Otherwise we apply the updates on top of the existing select_set.
for (rule, enabled) in select_map_updates {
if enabled {
select_set.insert(rule);
} else {
select_set.remove(rule);
}
}
for rule in docstring_override_updates {
docstring_overrides.insert(rule);
}
}
// Apply the same logic to `fixable` and `unfixable`.
if let Some(fixable) = &selection.fixable {
fixable_set = fixable_map_updates
.into_iter()
.filter_map(|(rule, enabled)| enabled.then_some(rule))
.collect();
if fixable.is_empty()
&& selection.extend_fixable.is_empty()
&& !selection.unfixable.is_empty()
{
carryover_unfixables = Some(&selection.unfixable);
}
} else {
for (rule, enabled) in fixable_map_updates {
if enabled {
fixable_set.insert(rule);
} else {
fixable_set.remove(rule);
}
}
}
// Check for selections that require a warning
for (kind, selector) in selection.selectors_by_kind() {
#[allow(deprecated)]
if matches!(selector, RuleSelector::Nursery) {
let suggestion = if preview.mode.is_disabled() {
" Use the `--preview` flag instead."
} else {
" Unstable rules should be selected individually or by their respective groups."
};
return Err(anyhow!("The `NURSERY` selector was removed.{suggestion}"));
};
// Some of these checks are only for `Kind::Enable` which means only `--select` will warn
// and use with, e.g., `--ignore` or `--fixable` is okay
// Unstable rules
if preview.mode.is_disabled() && kind.is_enable() {
if selector.is_exact() {
if selector.all_rules().all(|rule| rule.is_nursery()) {
deprecated_nursery_selectors.insert(selector);
}
}
// Check if the selector is empty because preview mode is disabled
if selector.rules(&preview).next().is_none()
&& selector
.rules(&PreviewOptions {
mode: PreviewMode::Enabled,
require_explicit: preview.require_explicit,
})
.next()
.is_some()
{
ignored_preview_selectors.insert(selector);
}
}
// Deprecated rules
if kind.is_enable() && selector.is_exact() {
if selector.all_rules().all(|rule| rule.is_deprecated()) {
deprecated_selectors.insert(selector.clone());
}
}
// Removed rules
if selector.is_exact() {
if selector.all_rules().all(|rule| rule.is_removed()) {
removed_selectors.insert(selector);
}
}
// Redirected rules
if let RuleSelector::Prefix {
prefix,
redirected_from: Some(redirect_from),
}
| RuleSelector::Rule {
prefix,
redirected_from: Some(redirect_from),
} = selector
{
redirects.insert(redirect_from, prefix);
}
}
}
let removed_selectors = removed_selectors.iter().sorted().collect::<Vec<_>>();
match removed_selectors.as_slice() {
[] => (),
[selection] => {
let (prefix, code) = selection.prefix_and_code();
return Err(anyhow!(
"Rule `{prefix}{code}` was removed and cannot be selected."
));
}
[..] => {
let mut message =
"The following rules have been removed and cannot be selected:".to_string();
for selection in removed_selectors {
let (prefix, code) = selection.prefix_and_code();
message.push_str("\n - ");
message.push_str(prefix);
message.push_str(code);
}
message.push('\n');
return Err(anyhow!(message));
}
}
for (from, target) in redirects.iter().sorted_by_key(|item| item.0) {
// TODO(martin): This belongs into the ruff crate.
warn_user_once_by_id!(
from,
"`{from}` has been remapped to `{}{}`.",
target.linter().common_prefix(),
target.short_code()
);
}
let deprecated_nursery_selectors = deprecated_nursery_selectors
.iter()
.sorted()
.collect::<Vec<_>>();