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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::path::{Path, PathBuf};
use anyhow::{anyhow, Result};
use once_cell::sync::Lazy;
use path_absolutize::path_dedot;
use regex::Regex;
use crate::checks_gen::CheckCodePrefix;
use crate::settings::pyproject::load_options;
use crate::settings::types::{FilePattern, PerFileIgnore, PythonVersion};
use crate::{
flake8_annotations, flake8_bugbear, flake8_quotes, flake8_tidy_imports, fs, isort, mccabe,
pep8_naming,
};
#[derive(Debug)]
pub struct Configuration {
pub dummy_variable_rgx: Regex,
pub exclude: Vec<FilePattern>,
pub extend_exclude: Vec<FilePattern>,
pub extend_ignore: Vec<CheckCodePrefix>,
pub extend_select: Vec<CheckCodePrefix>,
pub fix: bool,
pub ignore: Vec<CheckCodePrefix>,
pub line_length: usize,
pub per_file_ignores: Vec<PerFileIgnore>,
pub select: Vec<CheckCodePrefix>,
pub src: Vec<PathBuf>,
pub target_version: PythonVersion,
// Plugins
pub flake8_annotations: flake8_annotations::settings::Settings,
pub flake8_bugbear: flake8_bugbear::settings::Settings,
pub flake8_quotes: flake8_quotes::settings::Settings,
pub flake8_tidy_imports: flake8_tidy_imports::settings::Settings,
pub isort: isort::settings::Settings,
pub mccabe: mccabe::settings::Settings,
pub pep8_naming: pep8_naming::settings::Settings,
}
static DEFAULT_EXCLUDE: Lazy<Vec<FilePattern>> = Lazy::new(|| {
vec![
FilePattern::Simple(".bzr"),
FilePattern::Simple(".direnv"),
FilePattern::Simple(".eggs"),
FilePattern::Simple(".git"),
FilePattern::Simple(".hg"),
FilePattern::Simple(".mypy_cache"),
FilePattern::Simple(".nox"),
FilePattern::Simple(".pants.d"),
FilePattern::Simple(".ruff_cache"),
FilePattern::Simple(".svn"),
FilePattern::Simple(".tox"),
FilePattern::Simple(".venv"),
FilePattern::Simple("__pypackages__"),
FilePattern::Simple("_build"),
FilePattern::Simple("buck-out"),
FilePattern::Simple("build"),
FilePattern::Simple("dist"),
FilePattern::Simple("node_modules"),
FilePattern::Simple("venv"),
]
});
static DEFAULT_DUMMY_VARIABLE_RGX: Lazy<Regex> =
Lazy::new(|| Regex::new("^(_+|(_+[a-zA-Z0-9_]*[a-zA-Z0-9]+?))$").unwrap());
impl Configuration {
pub fn from_pyproject(
pyproject: Option<&PathBuf>,
project_root: Option<&PathBuf>,
) -> Result<Self> {
let options = load_options(pyproject)?;
Ok(Configuration {
dummy_variable_rgx: match options.dummy_variable_rgx {
Some(pattern) => Regex::new(&pattern)
.map_err(|e| anyhow!("Invalid dummy-variable-rgx value: {e}"))?,
None => DEFAULT_DUMMY_VARIABLE_RGX.clone(),
},
src: options
.src
.map(|src| {
src.iter()
.map(|path| {
let path = Path::new(path);
match project_root {
Some(project_root) => fs::normalize_path_to(path, project_root),
None => fs::normalize_path(path),
}
})
.collect()
})
.unwrap_or_else(|| {
vec![match project_root {
Some(project_root) => project_root.clone(),
None => path_dedot::CWD.clone(),
}]
}),
target_version: options.target_version.unwrap_or(PythonVersion::Py310),
exclude: options
.exclude
.map(|paths| {
paths
.iter()
.map(|path| FilePattern::from_user(path, project_root))
.collect()
})
.unwrap_or_else(|| DEFAULT_EXCLUDE.clone()),
extend_exclude: options
.extend_exclude
.unwrap_or_default()
.iter()
.map(|path| FilePattern::from_user(path, project_root))
.collect(),
extend_ignore: options.extend_ignore.unwrap_or_default(),
select: options
.select
.unwrap_or_else(|| vec![CheckCodePrefix::E, CheckCodePrefix::F]),
extend_select: options.extend_select.unwrap_or_default(),
fix: options.fix.unwrap_or_default(),
ignore: options.ignore.unwrap_or_default(),
line_length: options.line_length.unwrap_or(88),
per_file_ignores: options
.per_file_ignores
.map(|per_file_ignores| {
per_file_ignores
.iter()
.map(|(pattern, prefixes)| {
PerFileIgnore::new(pattern, prefixes, project_root)
})
.collect()
})
.unwrap_or_default(),
// Plugins
flake8_annotations: options
.flake8_annotations
.map(flake8_annotations::settings::Settings::from_options)
.unwrap_or_default(),
flake8_bugbear: options
.flake8_bugbear
.map(flake8_bugbear::settings::Settings::from_options)
.unwrap_or_default(),
flake8_quotes: options
.flake8_quotes
.map(flake8_quotes::settings::Settings::from_options)
.unwrap_or_default(),
flake8_tidy_imports: options
.flake8_tidy_imports
.map(flake8_tidy_imports::settings::Settings::from_options)
.unwrap_or_default(),
isort: options
.isort
.map(isort::settings::Settings::from_options)
.unwrap_or_default(),
mccabe: options
.mccabe
.map(mccabe::settings::Settings::from_options)
.unwrap_or_default(),
pep8_naming: options
.pep8_naming
.map(pep8_naming::settings::Settings::from_options)
.unwrap_or_default(),
})
}
}