feat(lint): Add checked files list to the JSON output(#26936)

Fixes #26930

cli/tools/lint/reporters.rs

@@ -175,6 +175,7 @@ struct JsonLintReporter {
   version: u8,
   diagnostics: Vec<JsonLintDiagnostic>,
   errors: Vec<LintError>,
+  checked_files: Vec<String>,
 }
 
 impl JsonLintReporter {
@@ -183,6 +184,7 @@ impl JsonLintReporter {
       version: JSON_SCHEMA_VERSION,
       diagnostics: Vec::new(),
       errors: Vec::new(),
+      checked_files: Vec::new(),
     }
   }
 }
@@ -209,6 +211,17 @@ impl LintReporter for JsonLintReporter {
       code: d.code().to_string(),
       hint: d.hint().map(|h| h.to_string()),
     });
+
+    let file_path = d
+      .specifier
+      .to_file_path()
+      .unwrap()
+      .to_string_lossy()
+      .to_string();
+
+    if !self.checked_files.contains(&file_path) {
+      self.checked_files.push(file_path);
+    }
   }
 
   fn visit_error(&mut self, file_path: &str, err: &AnyError) {
@@ -216,10 +229,15 @@ impl LintReporter for JsonLintReporter {
       file_path: file_path.to_string(),
       message: err.to_string(),
     });
+
+    if !self.checked_files.contains(&file_path.to_string()) {
+      self.checked_files.push(file_path.to_string());
+    }
   }
 
   fn close(&mut self, _check_count: usize) {
     sort_diagnostics(&mut self.diagnostics);
+    self.checked_files.sort();
     let json = serde_json::to_string_pretty(&self);
     #[allow(clippy::print_stdout)]
     {

tests/specs/lint/json/expected_json.out

@@ -61,5 +61,10 @@
       "file_path": "[WILDCARD]malformed.js",
       "message": "Expected '{', got 'B' at [WILDCARD]malformed.js:4:16\n\n  export class A B C\n                 ~"
     }
+  ],
+  "checked_files": [
+    "[WILDCARD]file1.js",
+    "[WILDCARD]file2.ts",
+    "[WILDCARD]malformed.js"
   ]
 }

tests/specs/lint/stdin_json/expected_from_stdin_json.out

@@ -20,5 +20,8 @@
       "hint": [WILDCARD]
     }
   ],
-  "errors": []
+  "errors": [],
+  "checked_files": [
+    "[WILDCARD]main.ts"
+  ]
 }

tests/specs/lint/with_report_config_override/with_report_config_override.out

@@ -38,5 +38,8 @@
       "hint": "If this is intentional, prefix it with an underscore like `_add`"
     }
   ],
-  "errors": []
+  "errors": [],
+  "checked_files": [
+    "[WILDCARD]a.ts"
+  ]
 }