Update lints, require Dart 2.17, add dependabot

.github/dependabot.yml

@@ -0,0 +1,9 @@
+# Set update schedule for GitHub Actions
+
+version: 2
+updates:
+
+- package-ecosystem: "github-actions"
+  directory: "/"
+  schedule:
+    interval: "monthly"

.github/workflows/dart.yml

@@ -18,16 +18,17 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        sdk: [2.12.0, dev]
+        sdk: [2.17.0, dev]
     steps:
-      - uses: actions/checkout@v2
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: actions/checkout@93ea575cb5d8a053eaa0ac8fa3b40d7e05a33cc8
+      - uses: dart-lang/setup-dart@6a218f2413a3e78e9087f638a238f6b40893203d
         with:
           sdk: ${{ matrix.sdk }}
 
       - run: dart pub get
         id: install
 
+      - run: dart format --output=none --set-exit-if-changed .
       - run: dart analyze --fatal-infos
 
       - name: Run Xvfb 

CHANGELOG.md

@@ -1,3 +1,7 @@
+## 1.1.2-dev
+
+- Require Dart 2.17
+
 ## 1.1.1
 
 - Populate the pubspec `repository` field.

analysis_options.yaml

@@ -1,19 +1,55 @@
+# https://dart.dev/guides/language/analysis-options
 include: package:lints/recommended.yaml
 
 analyzer:
-  strong-mode:
-    implicit-casts: false
+  language:
+    strict-casts: true
+    strict-inference: true
+    strict-raw-types: true
 
 linter:
   rules:
     - always_declare_return_types
+    - avoid_bool_literals_in_conditional_expressions
+    - avoid_catching_errors
+    - avoid_classes_with_only_static_members
     - avoid_dynamic_calls
+    - avoid_private_typedef_functions
+    - avoid_redundant_argument_values
+    - avoid_returning_null_for_future
+    - avoid_returning_this
     - avoid_unused_constructor_parameters
+    - avoid_void_async
     - cancel_subscriptions
+    - comment_references
     - directives_ordering
+    - join_return_with_assignment
+    - lines_longer_than_80_chars
+    - literal_only_boolean_expressions
+    - missing_whitespace_between_adjacent_strings
+    - no_adjacent_strings_in_list
+    - no_runtimeType_toString
     - omit_local_variable_types
+    - only_throw_errors
     - package_api_docs
+    - prefer_asserts_in_initializer_lists
+    - prefer_const_constructors
+    - prefer_const_declarations
+    - prefer_expression_function_bodies
+    - prefer_final_locals
+    - prefer_relative_imports
     - prefer_single_quotes
+    - require_trailing_commas
+    - sort_pub_dependencies
     - test_types_in_equals
     - throw_in_finally
+    - type_annotate_public_apis
     - unawaited_futures
+    - unnecessary_lambdas
+    - unnecessary_parenthesis
+    - unnecessary_raw_strings
+    - unnecessary_statements
+    - use_if_null_to_convert_nulls_to_bools
+    - use_raw_strings
+    - use_string_buffers
+    - use_super_parameters

example/main.dart

@@ -10,7 +10,7 @@ Future<void> main() async {
   print('launched Chrome');
 
   // Pause briefly before opening Chrome with a debug port.
-  await Future.delayed(Duration(seconds: 3));
+  await Future<void>.delayed(const Duration(seconds: 3));
 
   // Launches a chrome browser open to [_googleUrl]. Since we are launching with
   // a debug port, we will use a variety of different launch configurations,
@@ -20,7 +20,7 @@ Future<void> main() async {
 
   // When running this dart code, observe that the browser stays open for 3
   // seconds before we close it.
-  await Future.delayed(Duration(seconds: 3));
+  await Future<void>.delayed(const Duration(seconds: 3));
 
   await chrome.close();
   print('closed Chrome');

lib/src/chrome.dart

@@ -30,11 +30,14 @@ String get _executable {
       Platform.environment['PROGRAMFILES(X86)']
     ];
     return p.join(
-      windowsPrefixes.firstWhere((prefix) {
-        if (prefix == null) return false;
-        final path = p.join(prefix, _windowsExecutable);
-        return File(path).existsSync();
-      }, orElse: () => '.')!,
+      windowsPrefixes.firstWhere(
+        (prefix) {
+          if (prefix == null) return false;
+          final path = p.join(prefix, _windowsExecutable);
+          return File(path).existsSync();
+        },
+        orElse: () => '.',
+      )!,
       _windowsExecutable,
     );
   }
@@ -114,28 +117,31 @@ class Chrome {
     final process = await _startProcess(urls, args: args);
 
     // Wait until the DevTools are listening before trying to connect.
-    var _errorLines = <String>[];
+    final errorLines = <String>[];
     try {
       await process.stderr
           .transform(utf8.decoder)
           .transform(const LineSplitter())
           .firstWhere((line) {
-        _errorLines.add(line);
+        errorLines.add(line);
         return line.startsWith('DevTools listening');
-      }).timeout(Duration(seconds: 60));
+      }).timeout(const Duration(seconds: 60));
     } catch (_) {
-      throw Exception('Unable to connect to Chrome DevTools.\n\n'
-              'Chrome STDERR:\n' +
-          _errorLines.join('\n'));
+      throw Exception(
+        'Unable to connect to Chrome DevTools.\n\n'
+        'Chrome STDERR:\n${errorLines.join('\n')}',
+      );
     }
 
-    return _connect(Chrome._(
-      port,
-      ChromeConnection('localhost', port),
-      process: process,
-      dataDir: dataDir,
-      deleteDataDir: userDataDir == null,
-    ));
+    return _connect(
+      Chrome._(
+        port,
+        ChromeConnection('localhost', port),
+        process: process,
+        dataDir: dataDir,
+        deleteDataDir: userDataDir == null,
+      ),
+    );
   }
 
   /// Starts Chrome with the given arguments.
@@ -144,9 +150,8 @@ class Chrome {
   static Future<Process> start(
     List<String> urls, {
     List<String> args = const [],
-  }) async {
-    return await _startProcess(urls, args: args);
-  }
+  }) async =>
+      await _startProcess(urls, args: args);
 
   static Future<Process> _startProcess(
     List<String> urls, {
@@ -164,7 +169,8 @@ class Chrome {
     } catch (e) {
       await chrome.close();
       throw ChromeError(
-          'Unable to connect to Chrome debug port: ${chrome.debugPort}\n $e');
+        'Unable to connect to Chrome debug port: ${chrome.debugPort}\n $e',
+      );
     }
     return chrome;
   }
@@ -178,7 +184,7 @@ class Chrome {
       // profile information. Give it some time before attempting to delete
       // the directory.
       if (deleteDataDir) {
-        await Future.delayed(Duration(milliseconds: 500));
+        await Future<void>.delayed(const Duration(milliseconds: 500));
         await _dataDir?.delete(recursive: true);
       }
     } catch (_) {

pubspec.yaml

@@ -1,15 +1,15 @@
 name: browser_launcher
-version: 1.1.1
+version: 1.1.2-dev
 description: Provides a standardized way to launch web browsers for testing and tools.
 repository: https://github.com/dart-lang/browser_launcher
 
 environment:
-  sdk: '>=2.12.0 <3.0.0'
+  sdk: '>=2.17.0 <3.0.0'
 
 dependencies:
   path: ^1.8.0
   webkit_inspection_protocol: ^1.0.0
 
 dev_dependencies:
-  lints: ^1.0.0
+  lints: ^2.0.0
   test: ^1.17.3

test/chrome_test.dart

@@ -14,7 +14,8 @@ void main() {
   Chrome? chrome;
 
   Future<WipConnection> connectToTab(String url) async {
-    var tab = await chrome!.chromeConnection.getTab((t) => t.url.contains(url));
+    final tab =
+        await chrome!.chromeConnection.getTab((t) => t.url.contains(url));
     expect(tab, isNotNull);
     return tab!.connect();
   }
@@ -23,10 +24,17 @@ void main() {
     await chrome!.chromeConnection.getUrl(_openTabUrl(url));
   }
 
-  Future<void> launchChromeWithDebugPort(
-      {int port = 0, String? userDataDir, bool signIn = false}) async {
-    chrome = await Chrome.startWithDebugPort([_googleUrl],
-        debugPort: port, userDataDir: userDataDir, signIn: signIn);
+  Future<void> launchChromeWithDebugPort({
+    int port = 0,
+    String? userDataDir,
+    bool signIn = false,
+  }) async {
+    chrome = await Chrome.startWithDebugPort(
+      [_googleUrl],
+      debugPort: port,
+      userDataDir: userDataDir,
+      signIn: signIn,
+    );
   }
 
   Future<void> launchChrome() async {
@@ -51,20 +59,23 @@ void main() {
 
     test('has a working debugger', () async {
       await launchChromeWithDebugPort();
-      var tabs = await chrome!.chromeConnection.getTabs();
+      final tabs = await chrome!.chromeConnection.getTabs();
       expect(
-          tabs,
-          contains(const TypeMatcher<ChromeTab>()
-              .having((t) => t.url, 'url', _googleUrl)));
+        tabs,
+        contains(
+          const TypeMatcher<ChromeTab>()
+              .having((t) => t.url, 'url', _googleUrl),
+        ),
+      );
     });
 
     test('uses open debug port if provided port is 0', () async {
-      await launchChromeWithDebugPort(port: 0);
+      await launchChromeWithDebugPort();
       expect(chrome!.debugPort, isNot(equals(0)));
     });
 
     test('can provide a specific debug port', () async {
-      var port = await findUnusedPort();
+      final port = await findUnusedPort();
       await launchChromeWithDebugPort(port: port);
       expect(chrome!.debugPort, port);
     });
@@ -87,7 +98,7 @@ void main() {
           while (true) {
             try {
               attempts++;
-              await Future.delayed(const Duration(milliseconds: 100));
+              await Future<void>.delayed(const Duration(milliseconds: 100));
               dataDir.deleteSync(recursive: true);
               break;
             } catch (_) {
@@ -98,28 +109,39 @@ void main() {
 
         test('can launch with debug port', () async {
           await launchChromeWithDebugPort(
-              userDataDir: dataDir.path, signIn: signIn);
+            userDataDir: dataDir.path,
+            signIn: signIn,
+          );
           expect(chrome, isNotNull);
         });
 
         test('has a working debugger', () async {
           await launchChromeWithDebugPort(
-              userDataDir: dataDir.path, signIn: signIn);
-          var tabs = await chrome!.chromeConnection.getTabs();
+            userDataDir: dataDir.path,
+            signIn: signIn,
+          );
+          final tabs = await chrome!.chromeConnection.getTabs();
           expect(
-              tabs,
-              contains(const TypeMatcher<ChromeTab>()
-                  .having((t) => t.url, 'url', _googleUrl)));
+            tabs,
+            contains(
+              const TypeMatcher<ChromeTab>()
+                  .having((t) => t.url, 'url', _googleUrl),
+            ),
+          );
         });
 
         test('has correct profile path', () async {
           await launchChromeWithDebugPort(
-              userDataDir: dataDir.path, signIn: signIn);
+            userDataDir: dataDir.path,
+            signIn: signIn,
+          );
           await openTab(_chromeVersionUrl);
 
-          var wipConnection = await connectToTab(_chromeVersionUrl);
-          var result = await _evaluateExpression(wipConnection.page,
-              "document.getElementById('profile_path').textContent");
+          final wipConnection = await connectToTab(_chromeVersionUrl);
+          final result = await _evaluateExpression(
+            wipConnection.page,
+            "document.getElementById('profile_path').textContent",
+          );
 
           expect(result, contains(_userDataDirName));
         });
@@ -133,13 +155,13 @@ String _openTabUrl(String url) => '/json/new?$url';
 Future<String> _evaluateExpression(WipPage page, String expression) async {
   var result = '';
   while (result.isEmpty) {
-    await Future.delayed(Duration(milliseconds: 100));
-    var wipResponse = await page.sendCommand(
+    await Future<void>.delayed(const Duration(milliseconds: 100));
+    final wipResponse = await page.sendCommand(
       'Runtime.evaluate',
       params: {'expression': expression},
     );
-    var response = wipResponse.json['result'] as Map<String, dynamic>;
-    var value = (response['result'] as Map<String, dynamic>)['value'];
+    final response = wipResponse.json['result'] as Map<String, dynamic>;
+    final value = (response['result'] as Map<String, dynamic>)['value'];
     result = (value != null && value is String) ? value : '';
   }
   return result;