Merge remote-tracking branch 'upstream/master' into rustup

Author: xFrednet

.github/deploy.sh

@@ -8,6 +8,7 @@ rm -rf out/master/ || exit 0
 echo "Making the docs for master"
 mkdir out/master/
 cp util/gh-pages/index.html out/master
+cp util/gh-pages/script.js out/master
 cp util/gh-pages/lints.json out/master
 
 if [[ -n $TAG_NAME ]]; then

CHANGELOG.md

@@ -67,9 +67,9 @@ and resolved paths.
 
 [`T-AST`] issues will generally need you to match against a predefined syntax structure.
 To figure out how this syntax structure is encoded in the AST, it is recommended to run
-`rustc -Z ast-json` on an example of the structure and compare with the [nodes in the AST docs].
+`rustc -Z unpretty=ast-tree` on an example of the structure and compare with the [nodes in the AST docs].
 Usually the lint will end up to be a nested series of matches and ifs, [like so][deep-nesting].
-But we can make it nest-less by using [if_chain] macro, [like this][nest-less].
+But we can make it nest-less by using [let chains], [like this][nest-less].
 
 [`E-medium`] issues are generally pretty easy too, though it's recommended you work on an [`good-first-issue`]
 first. Sometimes they are only somewhat involved code wise, but not difficult per-se.
@@ -87,9 +87,9 @@ an AST expression). `match_def_path()` in Clippy's `utils` module can also be us
 [`E-medium`]: https://github.com/rust-lang/rust-clippy/labels/E-medium
 [`ty`]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_middle/ty
 [nodes in the AST docs]: https://doc.rust-lang.org/nightly/nightly-rustc/rustc_ast/ast/
-[deep-nesting]: https://github.com/rust-lang/rust-clippy/blob/557f6848bd5b7183f55c1e1522a326e9e1df6030/clippy_lints/src/mem_forget.rs#L29-L43
-[if_chain]: https://docs.rs/if_chain/*/if_chain
-[nest-less]: https://github.com/rust-lang/rust-clippy/blob/557f6848bd5b7183f55c1e1522a326e9e1df6030/clippy_lints/src/bit_mask.rs#L124-L150
+[deep-nesting]: https://github.com/rust-lang/rust-clippy/blob/5e4f0922911536f80d9591180fa604229ac13939/clippy_lints/src/mem_forget.rs#L31-L45
+[let chains]: https://github.com/rust-lang/rust/pull/94927
+[nest-less]: https://github.com/rust-lang/rust-clippy/blob/5e4f0922911536f80d9591180fa604229ac13939/clippy_lints/src/bit_mask.rs#L133-L159
 
 ## Writing code
 

CONTRIBUTING.md

@@ -25,6 +25,7 @@ clippy_lints = { path = "clippy_lints" }
 semver = "1.0"
 rustc_tools_util = { path = "rustc_tools_util" }
 tempfile = { version = "3.2", optional = true }
+termize = "0.1"
 
 [dev-dependencies]
 compiletest_rs = { version = "0.7.1", features = ["tmp"] }

Cargo.toml

@@ -13,7 +13,7 @@ fn exit_if_err(status: io::Result<ExitStatus>) {
     }
 }
 
-pub fn run(path: &str) {
+pub fn run<'a>(path: &str, args: impl Iterator<Item = &'a str>) {
     let is_file = match fs::metadata(path) {
         Ok(metadata) => metadata.is_file(),
         Err(e) => {
@@ -30,6 +30,7 @@ pub fn run(path: &str) {
                 .args(["-Z", "no-codegen"])
                 .args(["--edition", "2021"])
                 .arg(path)
+                .args(args)
                 .status(),
         );
     } else {
@@ -42,6 +43,8 @@ pub fn run(path: &str) {
             .expect("failed to create tempdir");
 
         let status = Command::new(cargo_clippy_path())
+            .arg("clippy")
+            .args(args)
             .current_dir(path)
             .env("CARGO_TARGET_DIR", target.as_ref())
             .status();

clippy_dev/src/lint.rs

@@ -76,7 +76,8 @@ fn main() {
         },
         ("lint", Some(matches)) => {
             let path = matches.value_of("path").unwrap();
-            lint::run(path);
+            let args = matches.values_of("args").into_iter().flatten();
+            lint::run(path, args);
         },
         ("rename_lint", Some(matches)) => {
             let old_name = matches.value_of("old_name").unwrap();
@@ -123,7 +124,7 @@ fn get_clap_config<'a>() -> ArgMatches<'a> {
                  * the lint count in README.md is correct\n \
                  * the changelog contains markdown link references at the bottom\n \
                  * all lint groups include the correct lints\n \
-                 * lint modules in `clippy_lints/*` are visible in `src/lifb.rs` via `pub mod`\n \
+                 * lint modules in `clippy_lints/*` are visible in `src/lib.rs` via `pub mod`\n \
                  * all lints are registered in the lint store",
                 )
                 .arg(Arg::with_name("print-only").long("print-only").help(
@@ -278,11 +279,44 @@ fn get_clap_config<'a>() -> ArgMatches<'a> {
                         Lint a package directory:
                             cargo dev lint tests/ui-cargo/wildcard_dependencies/fail
                             cargo dev lint ~/my-project
+
+                        Run rustfix:
+                            cargo dev lint ~/my-project -- --fix
+
+                        Set lint levels:
+                            cargo dev lint file.rs -- -W clippy::pedantic
+                            cargo dev lint ~/my-project -- -- -W clippy::pedantic
                 "})
                 .arg(
                     Arg::with_name("path")
                         .required(true)
                         .help("The path to a file or package directory to lint"),
+                )
+                .arg(
+                    Arg::with_name("args")
+                        .multiple(true)
+                        .help("Pass extra arguments to cargo/clippy-driver"),
+                ),
+        )
+        .subcommand(
+            SubCommand::with_name("rename_lint")
+                .about("Renames the given lint")
+                .arg(
+                    Arg::with_name("old_name")
+                        .index(1)
+                        .required(true)
+                        .help("The name of the lint to rename"),
+                )
+                .arg(
+                    Arg::with_name("new_name")
+                        .index(2)
+                        .required_unless("uplift")
+                        .help("The new name of the lint"),
+                )
+                .arg(
+                    Arg::with_name("uplift")
+                        .long("uplift")
+                        .help("This lint will be uplifted into rustc"),
                 ),
         )
         .subcommand(

clippy_dev/src/main.rs

@@ -133,7 +133,7 @@ fn to_camel_case(name: &str) -> String {
         .collect()
 }
 
-fn get_stabilisation_version() -> String {
+fn get_stabilization_version() -> String {
     fn parse_manifest(contents: &str) -> Option<String> {
         let version = contents
             .lines()
@@ -199,7 +199,7 @@ fn get_lint_file_contents(lint: &LintData<'_>, enable_msrv: bool) -> String {
         },
     };
 
-    let version = get_stabilisation_version();
+    let version = get_stabilization_version();
     let lint_name = lint.name;
     let category = lint.category;
     let name_camel = to_camel_case(lint.name);

clippy_dev/src/new_lint.rs

@@ -17,7 +17,7 @@ const GENERATED_FILE_COMMENT: &str = "// This file was generated by `cargo dev u
 
 const DOCS_LINK: &str = "https://rust-lang.github.io/rust-clippy/master/index.html";
 
-#[derive(Clone, Copy, PartialEq)]
+#[derive(Clone, Copy, PartialEq, Eq)]
 pub enum UpdateMode {
     Check,
     Change,
@@ -66,8 +66,13 @@ fn generate_lint_files(
         |res| {
             for lint in usable_lints
                 .iter()
-                .map(|l| &l.name)
-                .chain(deprecated_lints.iter().map(|l| &l.name))
+                .map(|l| &*l.name)
+                .chain(deprecated_lints.iter().map(|l| &*l.name))
+                .chain(
+                    renamed_lints
+                        .iter()
+                        .map(|l| l.old_name.strip_prefix("clippy::").unwrap_or(&l.old_name)),
+                )
                 .sorted()
             {
                 writeln!(res, "[`{}`]: {}#{}", lint, DOCS_LINK, lint).unwrap();
@@ -372,7 +377,7 @@ fn exit_with_failure() {
 }
 
 /// Lint data parsed from the Clippy source code.
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 struct Lint {
     name: String,
     group: String,
@@ -414,7 +419,7 @@ impl Lint {
     }
 }
 
-#[derive(Clone, PartialEq, Debug)]
+#[derive(Clone, PartialEq, Eq, Debug)]
 struct DeprecatedLint {
     name: String,
     reason: String,

clippy_dev/src/update_lints.rs

@@ -87,9 +87,7 @@ impl ApproxConstant {
         let s = s.as_str();
         if s.parse::<f64>().is_ok() {
             for &(constant, name, min_digits, msrv) in &KNOWN_CONSTS {
-                if is_approx_const(constant, s, min_digits)
-                    && msrv.as_ref().map_or(true, |msrv| meets_msrv(self.msrv.as_ref(), msrv))
-                {
+                if is_approx_const(constant, s, min_digits) && msrv.map_or(true, |msrv| meets_msrv(self.msrv, msrv)) {
                     span_lint_and_help(
                         cx,
                         APPROX_CONSTANT,

clippy_lints/src/approx_const.rs

@@ -50,7 +50,7 @@ declare_clippy_lint! {
     /// ### Known problems
     /// Clippy cannot know for sure if `a op= a op b` should have
     /// been `a = a op a op b` or `a = a op b`/`a op= b`. Therefore, it suggests both.
-    /// If `a op= a op b` is really the correct behaviour it should be
+    /// If `a op= a op b` is really the correct behavior it should be
     /// written as `a = a op a op b` as it's less confusing.
     ///
     /// ### Example