1 use std::path::PathBuf;
2 use std::process::Command;
4 // represents an archive we download from crates.io
11 // represents the extracted sourcecode of a crate
20 fn new(name: &str, version: &str) -> Self {
22 version: version.into(),
26 fn download_and_extract(&self) -> Krate {
27 let extract_dir = PathBuf::from("target/crater/crates");
30 let krate_download_dir = PathBuf::from("target/crater/downloads");
33 "https://crates.io/api/v1/crates/{}/{}/download",
34 self.name, self.version
36 println!("Downloading {}, {} / {}", self.name, self.version, url);
37 std::fs::create_dir("target/crater/").unwrap();
39 std::fs::create_dir(&krate_download_dir).unwrap();
40 std::fs::create_dir(&extract_dir).unwrap();
42 let krate_name = format!("{}-{}.crate.tar.gz", &self.name, &self.version);
43 let mut krate_dest = std::fs::File::create(krate_download_dir.join(krate_name)).unwrap();
44 let mut krate_req = ureq::get(&url).call().unwrap().into_reader();
45 std::io::copy(&mut krate_req, &mut krate_dest).unwrap();
46 let krate = krate_dest;
48 let tar = flate2::read::GzDecoder::new(&krate);
49 let mut archiv = tar::Archive::new(tar);
50 let extracted_path = extract_dir.join(format!("{}-{}", self.name, self.version));
51 // println!("ar: p: {:?}", &krate, extracted_path);
52 archiv.unpack(&extracted_path).expect("Failed to extract!");
56 version: self.version.clone(),
57 name: self.name.clone(),
64 fn run_clippy_lints(&self) -> String {
73 .expect("Failed to build clippy!");
78 let cargo_clippy_path: PathBuf = PathBuf::from("target/debug/cargo-clippy");
79 let clippy_driver_path: PathBuf = PathBuf::from("target/debug/clippy-driver");
81 // crates we want to check:
82 let krates: Vec<KrateSource> = vec![KrateSource::new("cargo", "0.49.0"), KrateSource::new("regex", "1.4.2")];
84 println!("Compiling clippy...");
86 println!("Done compiling");
88 // assert that clippy is found
90 cargo_clippy_path.is_file(),
91 "target/debug/cargo-clippy binary not found! {}", cargo_clippy_path.display()
94 clippy_driver_path.is_file(),
95 "target/debug/clippy-driver binary not found! {}", clippy_driver_path.display()
98 // download and extract the crates, then run clippy on them and collect clippys warnings
99 let _clippy_lint_results: Vec<String> = krates
101 .map(|krate| krate.download_and_extract())
102 .map(|krate| krate.run_clippy_lints())
103 .collect::<Vec<String>>();