[pygrep_hooks] Check blanket ignores via file-level pragmas (PGH004)

crates/ruff_linter/resources/test/fixtures/pygrep_hooks/PGH004_2.py

@@ -0,0 +1 @@
+# ruff: noqa

crates/ruff_linter/resources/test/fixtures/pygrep_hooks/PGH004_3.py

@@ -0,0 +1 @@
+# flake8: noqa

crates/ruff_linter/src/checkers/noqa.rs

@@ -52,7 +52,7 @@ pub(crate) fn check_noqa(
         }
 
         match &exemption {
-            Some(FileExemption::All) => {
+            Some(FileExemption::All(_)) => {
                 // If the file is exempted, ignore all diagnostics.
                 ignored_diagnostics.push(index);
                 continue;
@@ -109,8 +109,8 @@ pub(crate) fn check_noqa(
     // suppressed.
     if settings.rules.enabled(Rule::UnusedNOQA)
         && analyze_directives
-        && !exemption.is_some_and(|exemption| match exemption {
-            FileExemption::All => true,
+        && !exemption.as_ref().is_some_and(|exemption| match exemption {
+            FileExemption::All(_) => true,
             FileExemption::Codes(codes) => codes.contains(&Rule::UnusedNOQA.noqa_code()),
         })
         && !per_file_ignores.contains(Rule::UnusedNOQA)
@@ -215,7 +215,13 @@ pub(crate) fn check_noqa(
     }
 
     if settings.rules.enabled(Rule::BlanketNOQA) {
-        pygrep_hooks::rules::blanket_noqa(diagnostics, &noqa_directives, locator);
+        pygrep_hooks::rules::blanket_noqa(
+            diagnostics,
+            &noqa_directives,
+            locator,
+            &exemption,
+            settings.preview,
+        );
     }
 
     if settings.rules.enabled(Rule::RedirectedNOQA) {

crates/ruff_linter/src/noqa.rs

@@ -279,7 +279,7 @@ pub(crate) fn rule_is_ignored(
 #[derive(Debug)]
 pub(crate) enum FileExemption {
     /// The file is exempt from all rules.
-    All,
+    All(All),
     /// The file is exempt from the given rules.
     Codes(Vec<NoqaCode>),
 }
@@ -315,7 +315,7 @@ impl FileExemption {
 
                     match exemption {
                         ParsedFileExemption::All => {
-                            return Some(Self::All);
+                            return Some(Self::All(All { range: *range }));
                         }
                         ParsedFileExemption::Codes(codes) => {
                             exempt_codes.extend(codes.into_iter().filter_map(|code| {
@@ -656,7 +656,7 @@ fn find_noqa_comments<'a>(
     // Mark any non-ignored diagnostics.
     for diagnostic in diagnostics {
         match &exemption {
-            Some(FileExemption::All) => {
+            Some(FileExemption::All(_)) => {
                 // If the file is exempted, don't add any noqa directives.
                 comments_by_line.push(None);
                 continue;

crates/ruff_linter/src/rules/pygrep_hooks/mod.rs

@@ -10,13 +10,16 @@ mod tests {
 
     use crate::registry::Rule;
 
+    use crate::settings::types::PreviewMode;
     use crate::test::test_path;
     use crate::{assert_messages, settings};
 
     #[test_case(Rule::BlanketTypeIgnore, Path::new("PGH003_0.py"))]
     #[test_case(Rule::BlanketTypeIgnore, Path::new("PGH003_1.py"))]
     #[test_case(Rule::BlanketNOQA, Path::new("PGH004_0.py"))]
     #[test_case(Rule::BlanketNOQA, Path::new("PGH004_1.py"))]
+    #[test_case(Rule::BlanketNOQA, Path::new("PGH004_2.py"))]
+    #[test_case(Rule::BlanketNOQA, Path::new("PGH004_3.py"))]
     #[test_case(Rule::InvalidMockAccess, Path::new("PGH005_0.py"))]
     fn rules(rule_code: Rule, path: &Path) -> Result<()> {
         let snapshot = format!("{}_{}", rule_code.noqa_code(), path.to_string_lossy());
@@ -27,4 +30,23 @@ mod tests {
         assert_messages!(snapshot, diagnostics);
         Ok(())
     }
+
+    #[test_case(Rule::BlanketNOQA, Path::new("PGH004_2.py"))]
+    #[test_case(Rule::BlanketNOQA, Path::new("PGH004_3.py"))]
+    fn preview_rules(rule_code: Rule, path: &Path) -> Result<()> {
+        let snapshot = format!(
+            "preview__{}_{}",
+            rule_code.noqa_code(),
+            path.to_string_lossy()
+        );
+        let diagnostics = test_path(
+            Path::new("pygrep_hooks").join(path).as_path(),
+            &settings::LinterSettings {
+                preview: PreviewMode::Enabled,
+                ..settings::LinterSettings::for_rule(rule_code)
+            },
+        )?;
+        assert_messages!(snapshot, diagnostics);
+        Ok(())
+    }
 }

crates/ruff_linter/src/rules/pygrep_hooks/rules/blanket_noqa.rs

@@ -4,7 +4,8 @@ use ruff_python_trivia::Cursor;
 use ruff_source_file::Locator;
 use ruff_text_size::{Ranged, TextRange};
 
-use crate::noqa::{Directive, NoqaDirectives};
+use crate::noqa::{Directive, FileExemption, NoqaDirectives};
+use crate::settings::types::PreviewMode;
 
 /// ## What it does
 /// Check for `noqa` annotations that suppress all diagnostics, as opposed to
@@ -85,7 +86,19 @@ pub(crate) fn blanket_noqa(
     diagnostics: &mut Vec<Diagnostic>,
     noqa_directives: &NoqaDirectives,
     locator: &Locator,
+    exemption: &Option<FileExemption>,
+    preview: PreviewMode,
 ) {
+    if let (Some(FileExemption::All(all)), PreviewMode::Enabled) = (exemption, preview) {
+        diagnostics.push(Diagnostic::new(
+            BlanketNOQA {
+                missing_colon: false,
+                space_before_colon: false,
+            },
+            all.range(),
+        ));
+    }
+
     for directive_line in noqa_directives.lines() {
         if let Directive::All(all) = &directive_line.directive {
             let line = locator.slice(directive_line);

crates/ruff_linter/src/rules/pygrep_hooks/snapshots/ruff_linter__rules__pygrep_hooks__tests__PGH004_PGH004_2.py.snap

@@ -0,0 +1,4 @@
+---
+source: crates/ruff_linter/src/rules/pygrep_hooks/mod.rs
+---
+

crates/ruff_linter/src/rules/pygrep_hooks/snapshots/ruff_linter__rules__pygrep_hooks__tests__PGH004_PGH004_3.py.snap

@@ -0,0 +1,4 @@
+---
+source: crates/ruff_linter/src/rules/pygrep_hooks/mod.rs
+---
+

crates/ruff_linter/src/rules/pygrep_hooks/snapshots/ruff_linter__rules__pygrep_hooks__tests__preview__PGH004_PGH004_2.py.snap

@@ -0,0 +1,8 @@
+---
+source: crates/ruff_linter/src/rules/pygrep_hooks/mod.rs
+---
+PGH004_2.py:1:1: PGH004 Use specific rule codes when using `noqa`
+  |
+1 | # ruff: noqa
+  | ^^^^^^^^^^^^ PGH004
+  |

crates/ruff_linter/src/rules/pygrep_hooks/snapshots/ruff_linter__rules__pygrep_hooks__tests__preview__PGH004_PGH004_3.py.snap

@@ -0,0 +1,8 @@
+---
+source: crates/ruff_linter/src/rules/pygrep_hooks/mod.rs
+---
+PGH004_3.py:1:1: PGH004 Use specific rule codes when using `noqa`
+  |
+1 | # flake8: noqa
+  | ^^^^^^^^^^^^^^ PGH004
+  |