+// Copyright 2014-2018 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
// error-pattern:yummy
#![feature(box_syntax)]
#![feature(rustc_private)]
-#![allow(unknown_lints, missing_docs_in_private_items)]
+#![feature(tool_lints)]
+#![feature(try_from)]
+#![allow(unknown_lints, clippy::missing_docs_in_private_items)]
+
+// FIXME: switch to something more ergonomic here, once available.
+// (currently there is no way to opt into sysroot crates w/o `extern crate`)
+#[allow(unused_extern_crates)]
+extern crate rustc_driver;
+#[allow(unused_extern_crates)]
+extern crate rustc_plugin;
+use self::rustc_driver::{driver::CompileController, Compilation};
-use rustc_driver::{self, driver::CompileController, Compilation};
-use rustc_plugin;
+use std::convert::TryInto;
+use std::path::Path;
use std::process::{exit, Command};
-#[allow(print_stdout)]
+#[allow(clippy::print_stdout)]
fn show_version() {
println!(env!("CARGO_PKG_VERSION"));
}
pub fn main() {
- use std::env;
-
- if std::env::args().any(|a| a == "--version" || a == "-V") {
- show_version();
- return;
- }
-
- let sys_root = option_env!("SYSROOT")
- .map(String::from)
- .or_else(|| std::env::var("SYSROOT").ok())
- .or_else(|| {
- let home = option_env!("RUSTUP_HOME").or(option_env!("MULTIRUST_HOME"));
- let toolchain = option_env!("RUSTUP_TOOLCHAIN").or(option_env!("MULTIRUST_TOOLCHAIN"));
- home.and_then(|home| toolchain.map(|toolchain| format!("{}/toolchains/{}", home, toolchain)))
- })
- .or_else(|| {
- Command::new("rustc")
- .arg("--print")
- .arg("sysroot")
- .output()
- .ok()
- .and_then(|out| String::from_utf8(out.stdout).ok())
- .map(|s| s.trim().to_owned())
- })
- .expect("need to specify SYSROOT env var during clippy compilation, or use rustup or multirust");
-
- // Setting RUSTC_WRAPPER causes Cargo to pass 'rustc' as the first argument.
- // We're invoking the compiler programmatically, so we ignore this/
- let mut orig_args: Vec<String> = env::args().collect();
- if orig_args.len() <= 1 {
- std::process::exit(1);
- }
- if orig_args[1] == "rustc" {
- // we still want to be able to invoke it normally though
- orig_args.remove(1);
- }
- // this conditional check for the --sysroot flag is there so users can call
- // `clippy_driver` directly
- // without having to pass --sysroot or anything
- let mut args: Vec<String> = if orig_args.iter().any(|s| s == "--sysroot") {
- orig_args.clone()
- } else {
- orig_args
- .clone()
- .into_iter()
- .chain(Some("--sysroot".to_owned()))
- .chain(Some(sys_root))
- .collect()
- };
-
- // this check ensures that dependencies are built but not linted and the final
- // crate is
- // linted but not built
- let clippy_enabled = env::var("CLIPPY_TESTS").ok().map_or(false, |val| val == "true")
- || orig_args.iter().any(|s| s == "--emit=dep-info,metadata");
-
- if clippy_enabled {
- args.extend_from_slice(&["--cfg".to_owned(), r#"feature="cargo-clippy""#.to_owned()]);
- if let Ok(extra_args) = env::var("CLIPPY_ARGS") {
- args.extend(
- extra_args
- .split("__CLIPPY_HACKERY__")
- .filter(|s| !s.is_empty())
- .map(str::to_owned),
- );
+ rustc_driver::init_rustc_env_logger();
+ exit(rustc_driver::run(move || {
+ use std::env;
+
+ if std::env::args().any(|a| a == "--version" || a == "-V") {
+ show_version();
+ exit(0);
}
- }
-
- let mut controller = CompileController::basic();
- if clippy_enabled {
- controller.after_parse.callback = Box::new(move |state| {
- let mut registry = rustc_plugin::registry::Registry::new(
- state.session,
- state
- .krate
- .as_ref()
- .expect(
- "at this compilation stage \
- the crate must be parsed",
- )
- .span,
- );
- registry.args_hidden = Some(Vec::new());
-
- let conf = clippy_lints::read_conf(®istry);
- clippy_lints::register_plugins(&mut registry, &conf);
-
- let rustc_plugin::registry::Registry {
- early_lint_passes,
- late_lint_passes,
- lint_groups,
- llvm_passes,
- attributes,
- ..
- } = registry;
- let sess = &state.session;
- let mut ls = sess.lint_store.borrow_mut();
- for pass in early_lint_passes {
- ls.register_early_pass(Some(sess), true, pass);
- }
- for pass in late_lint_passes {
- ls.register_late_pass(Some(sess), true, pass);
- }
- for (name, to) in lint_groups {
- ls.register_group(Some(sess), true, name, to);
+ let sys_root = option_env!("SYSROOT")
+ .map(String::from)
+ .or_else(|| std::env::var("SYSROOT").ok())
+ .or_else(|| {
+ let home = option_env!("RUSTUP_HOME").or(option_env!("MULTIRUST_HOME"));
+ let toolchain = option_env!("RUSTUP_TOOLCHAIN").or(option_env!("MULTIRUST_TOOLCHAIN"));
+ home.and_then(|home| toolchain.map(|toolchain| format!("{}/toolchains/{}", home, toolchain)))
+ })
+ .or_else(|| {
+ Command::new("rustc")
+ .arg("--print")
+ .arg("sysroot")
+ .output()
+ .ok()
+ .and_then(|out| String::from_utf8(out.stdout).ok())
+ .map(|s| s.trim().to_owned())
+ })
+ .expect("need to specify SYSROOT env var during clippy compilation, or use rustup or multirust");
+
+ // Setting RUSTC_WRAPPER causes Cargo to pass 'rustc' as the first argument.
+ // We're invoking the compiler programmatically, so we ignore this/
+ let mut orig_args: Vec<String> = env::args().collect();
+ if orig_args.len() <= 1 {
+ std::process::exit(1);
+ }
+ if Path::new(&orig_args[1]).file_stem() == Some("rustc".as_ref()) {
+ // we still want to be able to invoke it normally though
+ orig_args.remove(1);
+ }
+ // this conditional check for the --sysroot flag is there so users can call
+ // `clippy_driver` directly
+ // without having to pass --sysroot or anything
+ let mut args: Vec<String> = if orig_args.iter().any(|s| s == "--sysroot") {
+ orig_args.clone()
+ } else {
+ orig_args
+ .clone()
+ .into_iter()
+ .chain(Some("--sysroot".to_owned()))
+ .chain(Some(sys_root))
+ .collect()
+ };
+
+ // this check ensures that dependencies are built but not linted and the final
+ // crate is
+ // linted but not built
+ let clippy_enabled = env::var("CLIPPY_TESTS").ok().map_or(false, |val| val == "true")
+ || orig_args.iter().any(|s| s == "--emit=dep-info,metadata");
+
+ if clippy_enabled {
+ args.extend_from_slice(&["--cfg".to_owned(), r#"feature="cargo-clippy""#.to_owned()]);
+ if let Ok(extra_args) = env::var("CLIPPY_ARGS") {
+ args.extend(
+ extra_args
+ .split("__CLIPPY_HACKERY__")
+ .filter_map(|s| if s.is_empty() {
+ None
+ } else {
+ Some(s.to_string())
+ })
+ );
}
- clippy_lints::register_pre_expansion_lints(sess, &mut ls, &conf);
-
- sess.plugin_llvm_passes.borrow_mut().extend(llvm_passes);
- sess.plugin_attributes.borrow_mut().extend(attributes);
- });
- }
- controller.compilation_done.stop = Compilation::Stop;
-
- if rustc_driver::run_compiler(&args, Box::new(controller), None, None)
- .0
- .is_err()
- {
- exit(101);
- }
+ }
+
+ let mut controller = CompileController::basic();
+ if clippy_enabled {
+ controller.after_parse.callback = Box::new(move |state| {
+ let mut registry = rustc_plugin::registry::Registry::new(
+ state.session,
+ state
+ .krate
+ .as_ref()
+ .expect(
+ "at this compilation stage \
+ the crate must be parsed",
+ )
+ .span,
+ );
+ registry.args_hidden = Some(Vec::new());
+
+ let conf = clippy_lints::read_conf(®istry);
+ clippy_lints::register_plugins(&mut registry, &conf);
+
+ let rustc_plugin::registry::Registry {
+ early_lint_passes,
+ late_lint_passes,
+ lint_groups,
+ llvm_passes,
+ attributes,
+ ..
+ } = registry;
+ let sess = &state.session;
+ let mut ls = sess.lint_store.borrow_mut();
+ for pass in early_lint_passes {
+ ls.register_early_pass(Some(sess), true, pass);
+ }
+ for pass in late_lint_passes {
+ ls.register_late_pass(Some(sess), true, pass);
+ }
+
+ for (name, (to, deprecated_name)) in lint_groups {
+ ls.register_group(Some(sess), true, name, deprecated_name, to);
+ }
+ clippy_lints::register_pre_expansion_lints(sess, &mut ls, &conf);
+
+ sess.plugin_llvm_passes.borrow_mut().extend(llvm_passes);
+ sess.plugin_attributes.borrow_mut().extend(attributes);
+ });
+ }
+ controller.compilation_done.stop = Compilation::Stop;
+
+ let args = args;
+ rustc_driver::run_compiler(&args, Box::new(controller), None, None)
+ }).try_into().expect("exit code too large"))
}
projects / rust.git / blobdiff