1 #![cfg_attr(bootstrap, feature(let_chains))]
4 #![feature(rustc_private)]
5 #![cfg_attr(feature = "deny-warnings", deny(warnings))]
6 // warn on lints, that are included in `rust-lang/rust`s bootstrap
7 #![warn(rust_2018_idioms, unused_lifetimes)]
9 extern crate rustc_lexer;
11 use std::path::PathBuf;
23 static CARGO_CLIPPY_EXE: &str = "cargo-clippy";
25 static CARGO_CLIPPY_EXE: &str = "cargo-clippy.exe";
27 /// Returns the path to the `cargo-clippy` binary
29 pub fn cargo_clippy_path() -> PathBuf {
30 let mut path = std::env::current_exe().expect("failed to get current executable name");
31 path.set_file_name(CARGO_CLIPPY_EXE);
35 /// Returns the path to the Clippy project directory
39 /// Panics if the current directory could not be retrieved, there was an error reading any of the
40 /// Cargo.toml files or ancestor directory is the clippy root directory
42 pub fn clippy_project_root() -> PathBuf {
43 let current_dir = std::env::current_dir().unwrap();
44 for path in current_dir.ancestors() {
45 let result = std::fs::read_to_string(path.join("Cargo.toml"));
46 if let Err(err) = &result {
47 if err.kind() == std::io::ErrorKind::NotFound {
52 let content = result.unwrap();
53 if content.contains("[package]\nname = \"clippy\"") {
54 return path.to_path_buf();
57 panic!("error: Can't determine root of project. Please run inside a Clippy working dir.");