84 lines
2.3 KiB
Rust
84 lines
2.3 KiB
Rust
#![feature(let_chains)]
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#![feature(rustc_private)]
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#![cfg_attr(feature = "deny-warnings", deny(warnings))]
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#![warn(
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trivial_casts,
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trivial_numeric_casts,
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rust_2018_idioms,
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unused_lifetimes,
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unused_qualifications
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)]
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#![allow(clippy::missing_panics_doc)]
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// The `rustc_driver` crate seems to be required in order to use the `rust_lexer` crate.
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#[allow(unused_extern_crates)]
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extern crate rustc_driver;
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extern crate rustc_lexer;
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use std::io;
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use std::path::PathBuf;
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use std::process::{self, ExitStatus};
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pub mod dogfood;
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pub mod fmt;
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pub mod lint;
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pub mod new_lint;
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pub mod serve;
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pub mod setup;
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pub mod update_lints;
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#[cfg(not(windows))]
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static CARGO_CLIPPY_EXE: &str = "cargo-clippy";
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#[cfg(windows)]
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static CARGO_CLIPPY_EXE: &str = "cargo-clippy.exe";
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/// Returns the path to the `cargo-clippy` binary
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///
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/// # Panics
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///
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/// Panics if the path of current executable could not be retrieved.
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#[must_use]
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pub fn cargo_clippy_path() -> PathBuf {
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let mut path = std::env::current_exe().expect("failed to get current executable name");
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path.set_file_name(CARGO_CLIPPY_EXE);
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path
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}
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/// Returns the path to the Clippy project directory
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///
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/// # Panics
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///
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/// Panics if the current directory could not be retrieved, there was an error reading any of the
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/// Cargo.toml files or ancestor directory is the clippy root directory
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#[must_use]
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pub fn clippy_project_root() -> PathBuf {
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let current_dir = std::env::current_dir().unwrap();
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for path in current_dir.ancestors() {
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let result = std::fs::read_to_string(path.join("Cargo.toml"));
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if let Err(err) = &result {
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if err.kind() == io::ErrorKind::NotFound {
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continue;
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}
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}
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let content = result.unwrap();
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if content.contains("[package]\nname = \"clippy\"") {
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return path.to_path_buf();
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}
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}
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panic!("error: Can't determine root of project. Please run inside a Clippy working dir.");
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}
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/// # Panics
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/// Panics if given command result was failed.
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pub fn exit_if_err(status: io::Result<ExitStatus>) {
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match status.expect("failed to run command").code() {
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Some(0) => {},
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Some(n) => process::exit(n),
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None => {
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eprintln!("Killed by signal");
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process::exit(1);
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},
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}
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}
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