Rewrite update-all-references bash scripts in Rust

[rust.git] / clippy_dev / src / lib.rs

diff --git a/clippy_dev/src/lib.rs b/clippy_dev/src/lib.rs
index 10056e8f03e0c139dfe6ad46e926e0e39e024767..17cc08ee10fea312f5b3d392991f61326be4f362 100644 (file)
--- a/clippy_dev/src/lib.rs
+++ b/clippy_dev/src/lib.rs
@@ -1,41 +1,48 @@
 #![cfg_attr(feature = "deny-warnings", deny(warnings))]
+#![feature(once_cell)]
 
 use itertools::Itertools;
-use lazy_static::lazy_static;
 use regex::Regex;
 use std::collections::HashMap;
 use std::ffi::OsStr;
 use std::fs;
+use std::lazy::SyncLazy;
 use std::path::{Path, PathBuf};
 use walkdir::WalkDir;
 
+pub mod bless;
 pub mod fmt;
 pub mod new_lint;
+pub mod ra_setup;
+pub mod serve;
 pub mod stderr_length_check;
 pub mod update_lints;
 
-lazy_static! {
-    static ref DEC_CLIPPY_LINT_RE: Regex = Regex::new(
+static DEC_CLIPPY_LINT_RE: SyncLazy<Regex> = SyncLazy::new(|| {
+    Regex::new(
         r#"(?x)
-        declare_clippy_lint!\s*[\{(]
-        (?:\s+///.*)*
-        \s+pub\s+(?P<name>[A-Z_][A-Z_0-9]*)\s*,\s*
-        (?P<cat>[a-z_]+)\s*,\s*
-        "(?P<desc>(?:[^"\\]+|\\(?s).(?-s))*)"\s*[})]
-    "#
+    declare_clippy_lint!\s*[\{(]
+    (?:\s+///.*)*
+    \s+pub\s+(?P<name>[A-Z_][A-Z_0-9]*)\s*,\s*
+    (?P<cat>[a-z_]+)\s*,\s*
+    "(?P<desc>(?:[^"\\]+|\\(?s).(?-s))*)"\s*[})]
+"#,
     )
-    .unwrap();
-    static ref DEC_DEPRECATED_LINT_RE: Regex = Regex::new(
+    .unwrap()
+});
+
+static DEC_DEPRECATED_LINT_RE: SyncLazy<Regex> = SyncLazy::new(|| {
+    Regex::new(
         r#"(?x)
-        declare_deprecated_lint!\s*[{(]\s*
-        (?:\s+///.*)*
-        \s+pub\s+(?P<name>[A-Z_][A-Z_0-9]*)\s*,\s*
-        "(?P<desc>(?:[^"\\]+|\\(?s).(?-s))*)"\s*[})]
-    "#
+    declare_deprecated_lint!\s*[{(]\s*
+    (?:\s+///.*)*
+    \s+pub\s+(?P<name>[A-Z_][A-Z_0-9]*)\s*,\s*
+    "(?P<desc>(?:[^"\\]+|\\(?s).(?-s))*)"\s*[})]
+"#,
     )
-    .unwrap();
-    static ref NL_ESCAPE_RE: Regex = Regex::new(r#"\\\n\s*"#).unwrap();
-}
+    .unwrap()
+});
+static NL_ESCAPE_RE: SyncLazy<Regex> = SyncLazy::new(|| Regex::new(r#"\\\n\s*"#).unwrap());
 
 pub static DOCS_LINK: &str = "https://rust-lang.github.io/rust-clippy/master/index.html";
 
@@ -105,7 +112,7 @@ pub fn gen_modules_list<'a>(lints: impl Iterator<Item = &'a Lint>) -> Vec<String
     lints
         .map(|l| &l.module)
         .unique()
-        .map(|module| format!("pub mod {};", module))
+        .map(|module| format!("mod {};", module))
         .sorted()
         .collect::<Vec<String>>()
 }
@@ -140,16 +147,30 @@ pub fn gen_deprecated<'a>(lints: impl Iterator<Item = &'a Lint>) -> Vec<String>
 }
 
 #[must_use]
-pub fn gen_register_lint_list<'a>(lints: impl Iterator<Item = &'a Lint>) -> Vec<String> {
-    let pre = "    store.register_lints(&[".to_string();
-    let post = "    ]);".to_string();
-    let mut inner = lints
+pub fn gen_register_lint_list<'a>(
+    internal_lints: impl Iterator<Item = &'a Lint>,
+    usable_lints: impl Iterator<Item = &'a Lint>,
+) -> Vec<String> {
+    let header = "    store.register_lints(&[".to_string();
+    let footer = "    ]);".to_string();
+    let internal_lints = internal_lints
+        .sorted_by_key(|l| format!("        &{}::{},", l.module, l.name.to_uppercase()))
+        .map(|l| {
+            format!(
+                "        #[cfg(feature = \"internal-lints\")]\n        &{}::{},",
+                l.module,
+                l.name.to_uppercase()
+            )
+        });
+    let other_lints = usable_lints
+        .sorted_by_key(|l| format!("        &{}::{},", l.module, l.name.to_uppercase()))
         .map(|l| format!("        &{}::{},", l.module, l.name.to_uppercase()))
-        .sorted()
-        .collect::<Vec<String>>();
-    inner.insert(0, pre);
-    inner.push(post);
-    inner
+        .sorted();
+    let mut lint_list = vec![header];
+    lint_list.extend(internal_lints);
+    lint_list.extend(other_lints);
+    lint_list.push(footer);
+    lint_list
 }
 
 /// Gathers all files in `src/clippy_lints` and gathers all lints inside
@@ -291,10 +312,11 @@ pub fn replace_region_in_text<F>(text: &str, start: &str, end: &str, replace_sta
     }
 
     if !found {
-        // This happens if the provided regex in `clippy_dev/src/main.rs` is not found in the
+        // This happens if the provided regex in `clippy_dev/src/main.rs` does not match in the
         // given text or file. Most likely this is an error on the programmer's side and the Regex
         // is incorrect.
-        eprintln!("error: regex `{:?}` not found. You may have to update it.", start);
+        eprintln!("error: regex \n{:?}\ndoesn't match. You may have to update it.", start);
+        std::process::exit(1);
     }
 
     let mut new_lines = new_lines.join("\n");
@@ -399,7 +421,7 @@ fn test_replace_region_no_changes() {
         changed: false,
         new_lines: "123\n456\n789".to_string(),
     };
-    let result = replace_region_in_text(text, r#"^\s*123$"#, r#"^\s*456"#, false, || vec![]);
+    let result = replace_region_in_text(text, r#"^\s*123$"#, r#"^\s*456"#, false, Vec::new);
     assert_eq!(expected, result);
 }
 
@@ -503,10 +525,7 @@ fn test_gen_modules_list() {
         Lint::new("should_assert_eq", "group1", "abc", None, "module_name"),
         Lint::new("incorrect_stuff", "group3", "abc", None, "another_module"),
     ];
-    let expected = vec![
-        "pub mod another_module;".to_string(),
-        "pub mod module_name;".to_string(),
-    ];
+    let expected = vec!["mod another_module;".to_string(), "mod module_name;".to_string()];
     assert_eq!(expected, gen_modules_list(lints.iter()));
 }