]> git.lizzy.rs Git - rust.git/blobdiff - clippy_dev/src/crater.rs
cargo dev crater: share target dir between clippy runs, enable pedantic and cargo...
[rust.git] / clippy_dev / src / crater.rs
index d7ed95dfe86412ce12129172cdd835cb48c22756..eb301159a7b8ad5dff8035e2c87625c1ef0ac63a 100644 (file)
@@ -1,6 +1,6 @@
+use crate::clippy_project_root;
 use std::path::PathBuf;
 use std::process::Command;
-
 // represents an archive we download from crates.io
 #[derive(Debug)]
 struct KrateSource {
@@ -13,6 +13,7 @@ struct KrateSource {
 struct Krate {
     version: String,
     name: String,
+    // path to the extracted sources that clippy can check
     path: PathBuf,
 }
 
@@ -23,56 +24,97 @@ fn new(name: &str, version: &str) -> Self {
             name: name.into(),
         }
     }
+
     fn download_and_extract(&self) -> Krate {
         let extract_dir = PathBuf::from("target/crater/crates");
-
-        // download
         let krate_download_dir = PathBuf::from("target/crater/downloads");
 
+        // url to download the crate from crates.io
         let url = format!(
             "https://crates.io/api/v1/crates/{}/{}/download",
             self.name, self.version
         );
-        println!("Downloading {}, {} / {}", self.name, self.version, url);
+        println!("Downloading and extracting {} {} from {}", self.name, self.version, url);
         let _ = std::fs::create_dir("target/crater/");
-
         let _ = std::fs::create_dir(&krate_download_dir);
         let _ = std::fs::create_dir(&extract_dir);
 
-        let krate_name = format!("{}-{}.crate.tar.gz", &self.name, &self.version);
-        let krate_file_path = krate_download_dir.join(krate_name);
-        let mut krate_dest = std::fs::File::create(&krate_file_path).unwrap();
-        let mut krate_req = ureq::get(&url).call().unwrap().into_reader();
-        std::io::copy(&mut krate_req, &mut krate_dest).unwrap();
-        // unzip the tarball
-        let dl = std::fs::File::open(krate_file_path).unwrap();
-
-        let ungz_tar = flate2::read::GzDecoder::new(dl);
-        // extract the tar archive
-        let mut archiv = tar::Archive::new(ungz_tar);
-        let extract_path = extract_dir.clone();
-        archiv.unpack(&extract_path).expect("Failed to extract!");
-        // extracted
-        dbg!(&extract_path);
+        let krate_file_path = krate_download_dir.join(format!("{}-{}.crate.tar.gz", &self.name, &self.version));
+        // don't download/extract if we already have done so
+        if !krate_file_path.is_file() {
+            // create a file path to download and write the crate data into
+            let mut krate_dest = std::fs::File::create(&krate_file_path).unwrap();
+            let mut krate_req = ureq::get(&url).call().unwrap().into_reader();
+            // copy the crate into the file
+            std::io::copy(&mut krate_req, &mut krate_dest).unwrap();
+
+            // unzip the tarball
+            let ungz_tar = flate2::read::GzDecoder::new(std::fs::File::open(&krate_file_path).unwrap());
+            // extract the tar archive
+            let mut archiv = tar::Archive::new(ungz_tar);
+            archiv.unpack(&extract_dir).expect("Failed to extract!");
+
+            // unzip the tarball
+            let ungz_tar = flate2::read::GzDecoder::new(std::fs::File::open(&krate_file_path).unwrap());
+            // extract the tar archive
+            let mut archiv = tar::Archive::new(ungz_tar);
+            archiv.unpack(&extract_dir).expect("Failed to extract!");
+        }
+        // crate is extracted, return a new Krate object which contains the path to the extracted
+        // sources that clippy can check
         Krate {
             version: self.version.clone(),
             name: self.name.clone(),
-            path: extract_dir.join(format!("{}-{}/", self.name, self.version))
+            path: extract_dir.join(format!("{}-{}/", self.name, self.version)),
         }
     }
 }
 
 impl Krate {
-    fn run_clippy_lints(&self, cargo_clippy_path:  &PathBuf) -> String {
+    fn run_clippy_lints(&self, cargo_clippy_path: &PathBuf) -> Vec<String> {
+        println!("Linting {} {}...", &self.name, &self.version);
         let cargo_clippy_path = std::fs::canonicalize(cargo_clippy_path).unwrap();
-        let project_root = &self.path;
-        dbg!(&cargo_clippy_path);
-        dbg!(&project_root);
-
-        let output = std::process::Command::new(cargo_clippy_path).current_dir(project_root).output();
-        dbg!(&output);
-        let output = String::from_utf8_lossy(&output.unwrap().stderr).into_owned();
-        dbg!(&output);
+
+        let shared_target_dir = clippy_project_root().join("target/crater/shared_target_dir/");
+
+        let all_output = std::process::Command::new(cargo_clippy_path)
+            .env("CARGO_TARGET_DIR", shared_target_dir)
+            // lint warnings will look like this:
+            // src/cargo/ops/cargo_compile.rs:127:35: warning: usage of `FromIterator::from_iter`
+            .args(&[
+                "--",
+                "--message-format=short",
+                "--",
+                "--cap-lints=warn",
+                "-Wclippy::pedantic",
+                "-Wclippy::cargo",
+            ])
+            .current_dir(&self.path)
+            .output()
+            .unwrap();
+        let stderr = String::from_utf8_lossy(&all_output.stderr);
+        let output_lines = stderr.lines();
+        let mut output: Vec<String> = output_lines
+            .into_iter()
+            .filter(|line| line.contains(": warning: "))
+            // prefix with the crate name and version
+            // cargo-0.49.0/src/cargo/ops/cargo_compile.rs:127:35: warning: usage of `FromIterator::from_iter`
+            .map(|line| format!("{}-{}/{}", self.name, self.version, line))
+            // remove the "warning: "
+            .map(|line| {
+                let remove_pat = "warning: ";
+                let pos = line
+                    .find(&remove_pat)
+                    .expect("clippy output did not contain \"warning: \"");
+                let mut new = line[0..pos].to_string();
+                new.push_str(&line[pos + remove_pat.len()..]);
+                new.push('\n');
+                new
+            })
+            .collect();
+
+        // sort messages alphabtically to avoid noise in the logs
+        output.sort();
         output
     }
 }
@@ -87,10 +129,29 @@ fn build_clippy() {
 // the main fn
 pub fn run() {
     let cargo_clippy_path: PathBuf = PathBuf::from("target/debug/cargo-clippy");
-    let clippy_driver_path: PathBuf = PathBuf::from("target/debug/clippy-driver");
 
     // crates we want to check:
-    let krates: Vec<KrateSource> = vec![KrateSource::new("regex", "1.4.2"), KrateSource::new("cargo", "0.49.0"), ];
+    let krates: Vec<KrateSource> = vec![
+        // some of these are form cargotest
+        KrateSource::new("cargo", "0.49.0"),
+        KrateSource::new("iron", "0.6.1"),
+        KrateSource::new("ripgrep", "12.1.1"),
+        //KrateSource::new("tokei", "12.0.4"),
+        KrateSource::new("xsv", "0.13.0"),
+        KrateSource::new("serde", "1.0.118"),
+        KrateSource::new("rayon", "1.5.0"),
+        // top 10 crates.io dls
+        KrateSource::new("rand", "0.7.3"),
+        KrateSource::new("syn", "1.0.54"),
+        KrateSource::new("libc", "0.2.81"),
+        KrateSource::new("quote", "1.0.7"),
+        KrateSource::new("rand_core", "0.6.0"),
+        KrateSource::new("unicode-xid", "0.2.1"),
+        KrateSource::new("proc-macro2", "1.0.24"),
+        KrateSource::new("bitflags", "1.2.1"),
+        KrateSource::new("log", "0.4.11"),
+        KrateSource::new("regex", "1.4.2"),
+    ];
 
     println!("Compiling clippy...");
     build_clippy();
@@ -102,16 +163,17 @@ pub fn run() {
         "target/debug/cargo-clippy binary not found! {}",
         cargo_clippy_path.display()
     );
-    assert!(
-        clippy_driver_path.is_file(),
-        "target/debug/clippy-driver binary not found! {}",
-        clippy_driver_path.display()
-     );
 
     // download and extract the crates, then run clippy on them and collect clippys warnings
-    let _clippy_lint_results: Vec<String> = krates
+    let clippy_lint_results: Vec<Vec<String>> = krates
         .into_iter()
         .map(|krate| krate.download_and_extract())
         .map(|krate| krate.run_clippy_lints(&cargo_clippy_path))
-        .collect::<Vec<String>>();
+        .collect();
+
+    let all_warnings: Vec<String> = clippy_lint_results.into_iter().flatten().collect();
+
+    // save the text into mini-crater/logs.txt
+    let text = all_warnings.join("");
+    std::fs::write("mini-crater/logs.txt", text).unwrap();
 }