rust/lintcheck/src/config.rs

125 lines
4.0 KiB
Rust

use clap::{Parser, Subcommand, ValueEnum};
use std::num::NonZero;
use std::path::PathBuf;
#[derive(Parser, Clone, Debug)]
#[command(args_conflicts_with_subcommands = true)]
pub(crate) struct LintcheckConfig {
/// Number of threads to use (default: all unless --fix or --recursive)
#[clap(
long = "jobs",
short = 'j',
value_name = "N",
default_value_t = 0,
hide_default_value = true
)]
pub max_jobs: usize,
/// Set the path for a crates.toml where lintcheck should read the sources from
#[clap(
long = "crates-toml",
value_name = "CRATES-SOURCES-TOML-PATH",
default_value = "lintcheck/lintcheck_crates.toml",
hide_default_value = true,
env = "LINTCHECK_TOML",
hide_env = true
)]
pub sources_toml_path: PathBuf,
/// File to save the clippy lint results here
#[clap(skip = "")]
pub lintcheck_results_path: PathBuf, // Overridden in new()
/// Only process a single crate on the list
#[clap(long, value_name = "CRATE")]
pub only: Option<String>,
/// Runs cargo clippy --fix and checks if all suggestions apply
#[clap(long, conflicts_with("max_jobs"))]
pub fix: bool,
/// Apply a filter to only collect specified lints
#[clap(long = "filter", value_name = "clippy_lint_name", use_value_delimiter = true)]
pub lint_filter: Vec<String>,
/// Check all Clippy lints, by default only `clippy::all` and `clippy::pedantic` are checked.
/// Usually, it's better to use `--filter` instead
#[clap(long, conflicts_with("lint_filter"))]
pub all_lints: bool,
/// Set the output format of the log file
#[clap(long, short, default_value = "text")]
pub format: OutputFormat,
/// Run clippy on the dependencies of crates specified in crates-toml
#[clap(long, conflicts_with("max_jobs"))]
pub recursive: bool,
#[command(subcommand)]
pub subcommand: Option<Commands>,
}
#[derive(Subcommand, Clone, Debug)]
pub(crate) enum Commands {
/// Display a markdown diff between two lintcheck log files in JSON format
Diff {
old: PathBuf,
new: PathBuf,
/// This will limit the number of warnings that will be printed for each lint
#[clap(long)]
truncate: bool,
},
/// Create a lintcheck crates TOML file containing the top N popular crates
Popular {
/// Output TOML file name
output: PathBuf,
/// Number of crate names to download
#[clap(short, long, default_value_t = 100)]
number: usize,
},
}
#[derive(ValueEnum, Debug, Clone, Copy, PartialEq, Eq)]
pub(crate) enum OutputFormat {
Text,
Markdown,
Json,
}
impl OutputFormat {
fn file_extension(self) -> &'static str {
match self {
OutputFormat::Text => "txt",
OutputFormat::Markdown => "md",
OutputFormat::Json => "json",
}
}
}
impl LintcheckConfig {
pub fn new() -> Self {
let mut config = LintcheckConfig::parse();
// for the path where we save the lint results, get the filename without extension (so for
// wasd.toml, use "wasd"...)
let filename: PathBuf = config.sources_toml_path.file_stem().unwrap().into();
config.lintcheck_results_path = PathBuf::from(format!(
"lintcheck-logs/{}_logs.{}",
filename.display(),
config.format.file_extension(),
));
// look at the --threads arg, if 0 is passed, use the threads count
if config.max_jobs == 0 {
config.max_jobs = if config.fix || config.recursive {
1
} else {
std::thread::available_parallelism().map_or(1, NonZero::get)
};
};
for lint_name in &mut config.lint_filter {
*lint_name = format!(
"clippy::{}",
lint_name
.strip_prefix("clippy::")
.unwrap_or(lint_name)
.replace('_', "-")
);
}
config
}
}