[tools] Don't check license of generated Swift package

Author: loic-sharma

script/tool/lib/src/license_check_command.dart

@@ -43,6 +43,11 @@ const Set<String> _ignoredFullBasenameList = <String>{
   'resource.h', // Generated by VS.
 };
 
+// Path parts to ignore. Used to ignore entire subdirectories.
+const Set<String> _ignorePathPartList = <String>{
+  'FlutterGeneratedPluginSwiftPackage', // Generated by Flutter tool.
+};
+
 // Third-party packages where the code doesn't have file-level annotation, just
 // the package-level LICENSE file. Each entry must be a directory relative to
 // third_party/packages, as that is the only directory where this is allowed.
@@ -227,7 +232,7 @@ class LicenseCheckCommand extends PackageCommand {
     final List<File> unrecognizedThirdPartyFiles = <File>[];
 
     // Most code file types in the repository use '//' comments.
-    final String defaultFirstParyLicenseBlock = _generateLicenseBlock('// ');
+    final String defaultFirstPartyLicenseBlock = _generateLicenseBlock('// ');
     // A few file types have a different comment structure.
     final Map<String, String> firstPartyLicenseBlockByExtension =
         <String, String>{
@@ -258,19 +263,19 @@ class LicenseCheckCommand extends PackageCommand {
       // still pass since they will be converted back on commit.
       content = content.replaceAll('\r\n', '\n');
 
-      final String firstParyLicense =
+      final String firstPartyLicense =
           firstPartyLicenseBlockByExtension[p.extension(file.path)] ??
-              defaultFirstParyLicenseBlock;
+              defaultFirstPartyLicenseBlock;
       if (_isThirdParty(file)) {
         // Third-party directories allow either known third-party licenses, our
         // the first-party license, as there may be local additions.
         if (!_thirdPartyLicenseBlockRegexes
                 .any((RegExp regex) => regex.hasMatch(content)) &&
-            !content.contains(firstParyLicense)) {
+            !content.contains(firstPartyLicense)) {
           unrecognizedThirdPartyFiles.add(file);
         }
       } else {
-        if (!content.contains(firstParyLicense)) {
+        if (!content.contains(firstPartyLicense)) {
           incorrectFirstPartyFiles.add(file);
         }
       }
@@ -305,11 +310,24 @@ class LicenseCheckCommand extends PackageCommand {
   }
 
   bool _shouldIgnoreFile(File file) {
-    final String path = file.path;
-    return _ignoreBasenameList.contains(p.basenameWithoutExtension(path)) ||
-        _ignoreSuffixList.any((String suffix) =>
-            path.endsWith(suffix) ||
-            _ignoredFullBasenameList.contains(p.basename(path)));
+    if (_ignoreBasenameList.contains(p.basenameWithoutExtension(file.path))) {
+      return true;
+    }
+
+    if (_ignoreSuffixList.any(file.path.endsWith)) {
+      return true;
+    }
+
+    if (_ignoredFullBasenameList.contains(p.basename(file.path))) {
+      return true;
+    }
+
+    final List<String> parts = path.split(file.path);
+    if (parts.any(_ignorePathPartList.contains)) {
+      return true;
+    }
+
+    return false;
   }
 
   bool _isThirdParty(File file) {

script/tool/test/license_check_command_test.dart

@@ -162,6 +162,24 @@ void main() {
       }
     });
 
+    test('ignores FlutterGeneratedPluginSwiftPackage', () async {
+      final Directory packageDir = root
+          .childDirectory('FlutterGeneratedPluginSwiftPackage')
+        ..createSync();
+      packageDir.childFile('Package.swift').createSync();
+      packageDir
+          .childDirectory('Sources')
+          .childDirectory('FlutterGeneratedPluginSwiftPackage')
+          .childFile('FlutterGeneratedPluginSwiftPackage.swift')
+          .createSync(recursive: true);
+
+      final List<String> output =
+          await runCapturingPrint(runner, <String>['license-check']);
+
+      expect(output,
+          isNot(contains('Checking FlutterGeneratedPluginSwiftPackage')));
+    });
+
     test('passes if all checked files have license blocks', () async {
       final File checked = root.childFile('checked.cc');
       checked.createSync();