Enable flutter_lints linting

analysis_options.yaml

@@ -1,3 +1,30 @@
+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/tools/linter-rules.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
 # https://dart.dev/tools/analysis
 formatter:
   page_width: 120

pubspec.lock

@@ -142,6 +142,14 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_lints:
+    dependency: "direct dev"
+    description:
+      name: flutter_lints
+      sha256: "5398f14efa795ffb7a33e9b6a08798b26a180edac4ad7db3f231e40f82ce11e1"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.0"
   flutter_oss_licenses:
     dependency: "direct dev"
     description:
@@ -264,6 +272,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.0.1"
+  lints:
+    dependency: transitive
+    description:
+      name: lints
+      sha256: c35bb79562d980e9a453fc715854e1ed39e24e7d0297a880ef54e17f9874a9d7
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.1.1"
   matcher:
     dependency: transitive
     description:

pubspec.yaml

@@ -42,6 +42,7 @@ dev_dependencies:
   flutter_test:
     sdk: flutter
   flutter_oss_licenses: ^3.0.4
+  flutter_lints: ^5.0.0
 
 # For information on the generic Dart part of this file, see the
 # following page: https://dart.dev/tools/pub/pubspec