mirror of
https://github.com/rust-lang/rust-clippy
synced 2024-11-24 21:53:23 +00:00
100 lines
3.2 KiB
Rust
100 lines
3.2 KiB
Rust
//! This test is a part of quality control and makes clippy eat what it produces. Awesome lints and
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//! long error messages
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//!
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//! See [Eating your own dog food](https://en.wikipedia.org/wiki/Eating_your_own_dog_food) for context
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#![feature(once_cell)]
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#![cfg_attr(feature = "deny-warnings", deny(warnings))]
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#![warn(rust_2018_idioms, unused_lifetimes)]
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use std::path::PathBuf;
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use std::process::Command;
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use test_utils::IS_RUSTC_TEST_SUITE;
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mod test_utils;
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#[test]
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fn dogfood_clippy() {
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if IS_RUSTC_TEST_SUITE {
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return;
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}
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// "" is the root package
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for package in &["", "clippy_dev", "clippy_lints", "clippy_utils", "rustc_tools_util"] {
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run_clippy_for_package(package, &[]);
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}
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}
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#[test]
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#[ignore]
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#[cfg(feature = "internal")]
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fn run_metadata_collection_lint() {
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use std::fs::File;
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use std::time::SystemTime;
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// Setup for validation
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let metadata_output_path = PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("util/gh-pages/lints.json");
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let start_time = SystemTime::now();
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// Run collection as is
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std::env::set_var("ENABLE_METADATA_COLLECTION", "1");
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run_clippy_for_package("clippy_lints", &["-A", "unfulfilled_lint_expectations"]);
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// Check if cargo caching got in the way
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if let Ok(file) = File::open(metadata_output_path) {
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if let Ok(metadata) = file.metadata() {
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if let Ok(last_modification) = metadata.modified() {
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if last_modification > start_time {
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// The output file has been modified. Most likely by a hungry
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// metadata collection monster. So We'll return.
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return;
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}
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}
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}
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}
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// Force cargo to invalidate the caches
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filetime::set_file_mtime(
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PathBuf::from(env!("CARGO_MANIFEST_DIR")).join("clippy_lints/src/lib.rs"),
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filetime::FileTime::now(),
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)
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.unwrap();
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// Running the collection again
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run_clippy_for_package("clippy_lints", &["-A", "unfulfilled_lint_expectations"]);
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}
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fn run_clippy_for_package(project: &str, args: &[&str]) {
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let root_dir = PathBuf::from(env!("CARGO_MANIFEST_DIR"));
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let mut command = Command::new(&*test_utils::CARGO_CLIPPY_PATH);
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command
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.current_dir(root_dir.join(project))
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.env("CARGO_INCREMENTAL", "0")
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.arg("clippy")
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.arg("--all-targets")
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.arg("--all-features")
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.arg("--")
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.args(args)
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.args(&["-D", "clippy::all"])
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.args(&["-D", "clippy::pedantic"])
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.arg("-Cdebuginfo=0"); // disable debuginfo to generate less data in the target dir
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if cfg!(feature = "internal") {
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// internal lints only exist if we build with the internal feature
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command.args(&["-D", "clippy::internal"]);
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} else {
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// running a clippy built without internal lints on the clippy source
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// that contains e.g. `allow(clippy::invalid_paths)`
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command.args(&["-A", "unknown_lints"]);
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}
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let output = command.output().unwrap();
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println!("status: {}", output.status);
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println!("stdout: {}", String::from_utf8_lossy(&output.stdout));
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println!("stderr: {}", String::from_utf8_lossy(&output.stderr));
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assert!(output.status.success());
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}
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