ruff/ruff_dev/src/generate_rules_table.rs

109 lines
3.5 KiB
Rust

//! Generate a Markdown-compatible table of supported lint rules.
use anyhow::Result;
use clap::Args;
use ruff::registry::{Linter, LinterCategory, Rule, RuleNamespace};
use strum::IntoEnumIterator;
use crate::utils::replace_readme_section;
const TABLE_BEGIN_PRAGMA: &str = "<!-- Begin auto-generated sections. -->";
const TABLE_END_PRAGMA: &str = "<!-- End auto-generated sections. -->";
const TOC_BEGIN_PRAGMA: &str = "<!-- Begin auto-generated table of contents. -->";
const TOC_END_PRAGMA: &str = "<!-- End auto-generated table of contents. -->";
#[derive(Args)]
pub struct Cli {
/// Write the generated table to stdout (rather than to `README.md`).
#[arg(long)]
pub(crate) dry_run: bool,
}
fn generate_table(table_out: &mut String, rules: impl IntoIterator<Item = Rule>) {
table_out.push_str("| Code | Name | Message | Fix |");
table_out.push('\n');
table_out.push_str("| ---- | ---- | ------- | --- |");
table_out.push('\n');
for rule in rules {
let fix_token = match rule.autofixable() {
None => "",
Some(_) => "🛠",
};
table_out.push_str(&format!(
"| {} | {} | {} | {} |",
rule.code(),
rule.as_ref(),
rule.message_formats()[0].replace('|', r"\|"),
fix_token
));
table_out.push('\n');
}
table_out.push('\n');
}
pub fn main(cli: &Cli) -> Result<()> {
// Generate the table string.
let mut table_out = String::new();
let mut toc_out = String::new();
for linter in Linter::iter() {
let codes_csv: String = linter.prefixes().join(", ");
table_out.push_str(&format!("### {} ({codes_csv})", linter.name()));
table_out.push('\n');
table_out.push('\n');
toc_out.push_str(&format!(
" 1. [{} ({})](#{}-{})\n",
linter.name(),
codes_csv,
linter.name().to_lowercase().replace(' ', "-"),
codes_csv.to_lowercase().replace(',', "-").replace(' ', "")
));
if let Some(url) = linter.url() {
let host = url
.trim_start_matches("https://")
.split('/')
.next()
.unwrap();
table_out.push_str(&format!(
"For more, see [{}]({}) on {}.",
linter.name(),
url,
match host {
"pypi.org" => "PyPI",
"github.com" => "GitHub",
host => panic!(
"unexpected host in URL of {}, expected pypi.org or github.com but found \
{host}",
linter.name()
),
}
));
table_out.push('\n');
table_out.push('\n');
}
if let Some(categories) = linter.categories() {
for LinterCategory(prefix, name, selector) in categories {
table_out.push_str(&format!("#### {name} ({prefix})"));
table_out.push('\n');
generate_table(&mut table_out, selector);
}
} else {
generate_table(&mut table_out, &linter);
}
}
if cli.dry_run {
print!("Table of Contents: {toc_out}\n Rules Tables: {table_out}");
} else {
// Extra newline in the markdown numbered list looks weird
replace_readme_section(toc_out.trim_end(), TOC_BEGIN_PRAGMA, TOC_END_PRAGMA)?;
replace_readme_section(&table_out, TABLE_BEGIN_PRAGMA, TABLE_END_PRAGMA)?;
}
Ok(())
}