Update license files and add copyright headers to all Dart files

CONTRIBUTING.md

@@ -0,0 +1,176 @@
+# Contributing | Firebase Admin Dart SDK
+
+Thank you for contributing to the Firebase community!
+
+ - [Have a usage question?](#question)
+ - [Think you found a bug?](#issue)
+ - [Have a feature request?](#feature)
+ - [Want to submit a pull request?](#submit)
+ - [Need to get set up locally?](#local-setup)
+
+
+## <a name="question"></a>Have a usage question?
+
+We get lots of those and we love helping you, but GitHub is not the best place for them. Issues
+which just ask about usage will be closed. Here are some resources to get help:
+
+- Go through the [guides](https://firebase.google.com/docs/admin/setup/)
+- Read the full [API reference](https://pub.dev/documentation/dart_firebase_admin/latest/)
+
+If the official documentation doesn't help, try asking a question on [Stack Overflow](https://stackoverflow.com/questions/tagged/firebase+dart).
+
+**Please avoid double posting across multiple channels!**
+
+
+## <a name="issue"></a>Think you found a bug?
+
+Yeah, we're definitely not perfect!
+
+Search through [old issues](https://github.com/firebase/firebase-admin-dart/issues) before
+submitting a new issue as your question may have already been answered.
+
+If your issue appears to be a bug, and hasn't been reported,
+[open a new issue](https://github.com/firebase/firebase-admin-dart/issues/new). Please use the
+provided bug report template and include a minimal repro.
+
+If you are up to the challenge, [submit a pull request](#submit) with a fix!
+
+
+## <a name="feature"></a>Have a feature request?
+
+Great, we love hearing how we can improve our products! Share you idea through our
+[feature request support channel](https://firebase.google.com/support/contact/bugs-features/).
+
+
+## <a name="submit"></a>Want to submit a pull request?
+
+Sweet, we'd love to accept your contribution!
+[Open a new pull request](https://github.com/firebase/firebase-admin-dart/pulls) and fill
+out the provided template.
+
+**If you want to implement a new feature, please open an issue with a proposal first so that we can
+figure out if the feature makes sense and how it will work.**
+
+Make sure your changes pass our linter and the tests all pass on your local machine. We've hooked
+up this repo with continuous integration to double check those things for you.
+
+Most non-trivial changes should include some extra test coverage. If you aren't sure how to add
+tests, feel free to submit regardless and ask us for some advice.
+
+Finally, you will need to sign our
+[Contributor License Agreement](https://cla.developers.google.com/about/google-individual),
+and go through our code review process before we can accept your pull request.
+
+### Contributor License Agreement
+
+Contributions to this project must be accompanied by a Contributor License
+Agreement. You (or your employer) retain the copyright to your contribution.
+This simply gives us permission to use and redistribute your contributions as
+part of the project. Head over to <https://cla.developers.google.com/> to see
+your current agreements on file or to sign a new one.
+
+You generally only need to submit a CLA once, so if you've already submitted one
+(even if it was for a different project), you probably don't need to do it
+again.
+
+### Code reviews
+
+All submissions, including submissions by project members, require review. We
+use GitHub pull requests for this purpose. Consult
+[GitHub Help](https://help.github.com/articles/about-pull-requests/) for more
+information on using pull requests.
+
+
+## <a name="local-setup"></a>Need to get set up locally?
+
+### Prerequisites
+
+1. [Dart SDK](https://dart.dev/get-dart) (Latest stable version recommended).
+2. [Melos](https://melos.invertase.dev/) (`dart pub global activate melos`).
+3. Google Cloud SDK ([`gcloud`](https://cloud.google.com/sdk/downloads) utility).
+
+### Initial Setup
+
+Run the following commands from the command line to get your local environment set up:
+
+```bash
+$ git clone https://github.com/firebase/firebase-admin-dart.git
+$ cd firebase-admin-dart    # go to the firebase-admin-dart directory
+$ melos bootstrap           # install dependencies and link packages
+```
+
+In order to run the integration tests, you also need to authorize the `gcloud` utility with
+Google application default credentials:
+
+```bash
+$ gcloud beta auth application-default login
+```
+
+### Running the Linter
+
+Source files are written in Dart and analyzed using the standard Dart analyzer. Run the following command to analyze the project:
+
+```bash
+$ melos run analyze
+# OR
+$ dart analyze .
+```
+
+### Running Tests
+
+There are two types of tests: unit and integration. The unit tests are intended to be run during
+development, and the integration tests are intended to be run validation against a real Environment or Emulator Suite.
+
+#### Unit Tests
+
+To run the unit tests for all packages:
+
+```bash
+$ melos exec -- dart test
+```
+
+Or for a specific package, navigate to the package directory and run `dart test`:
+
+```bash
+$ cd packages/dart_firebase_admin
+$ dart test
+```
+
+#### Integration Tests with Emulator Suite
+
+Some of the integration tests work with the Emulator Suite and you can run them
+without an actual Firebase project.
+
+First, make sure to [install Firebase CLI](https://firebase.google.com/docs/cli#install_the_firebase_cli).
+And then start the emulators:
+
+```bash
+$ firebase emulators:start --only firestore,auth
+```
+
+Then run the tests with the necessary environment variables:
+
+```bash
+$ export FIRESTORE_EMULATOR_HOST=localhost:8080
+$ export FIREBASE_AUTH_EMULATOR_HOST=localhost:9099
+$ dart test test/firestore/firestore_integration_test.dart
+```
+
+#### Integration Tests with an actual Firebase project
+
+Integration tests are executed against a real life Firebase project. If you do not already
+have one suitable for running the tests against, you can create a new project in the
+[Firebase Console](https://console.firebase.google.com) following the setup guide below.
+If you already have a Firebase project, you'll need to obtain credentials to communicate and
+authorize access to your Firebase project.
+
+See `packages/dart_firebase_admin/README.md` for more details on project setup if needed.
+
+### Repo Organization
+
+This repository is a monorepo managed by Melos.
+
+* `packages/` - Contains all the source packages.
+  * `dart_firebase_admin/` - The main Firebase Admin SDK package.
+  * `googleapis_firestore/` - Stand-alone Firestore package.
+  * `googleapis_storage/` - Stand-alone Google Cloud Storage package.

LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2020 Invertase Limited
+   Copyright 2026 Google LLC
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

gen-version.sh

@@ -1,4 +1,18 @@
 #!/bin/bash
+# Copyright 2026 Google LLC
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
 
 # Script to generate version.g.dart files for all packages
 # Finds all packages/*/pubspec.yaml files, extracts version, and writes to package/lib/version.g.dart
@@ -29,6 +43,20 @@ find "$SCRIPT_DIR/packages" -name "pubspec.yaml" -type f | while read -r pubspec
   # Write version.g.dart file
   version_file="$lib_dir/version.g.dart"
   cat > "$version_file" << EOF
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 // GENERATED CODE - DO NOT MODIFY BY HAND
 // This file is generated by gen-version.sh
 
@@ -39,4 +67,4 @@ EOF
   echo "Generated $version_file with version: $version"
 done
 
-echo "Version generation complete!"
+echo "Version generation complete!"

packages/dart_firebase_admin/LICENSE

@@ -186,7 +186,7 @@
       same "printed page" as the copyright notice for easier
       identification within third-party archives.
 
-   Copyright 2020 Invertase Limited
+   Copyright 2026 Google LLC
 
    Licensed under the Apache License, Version 2.0 (the "License");
    you may not use this file except in compliance with the License.

packages/dart_firebase_admin/example/example_functions_ts/src/index.ts

@@ -1,3 +1,19 @@
+/**
+ * Copyright 2026 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 /**
  * Import function triggers from their respective submodules:
  *

packages/dart_firebase_admin/example/lib/app_check_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/app_check.dart';
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 

packages/dart_firebase_admin/example/lib/auth_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/auth.dart';
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 

packages/dart_firebase_admin/example/lib/firestore_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'dart:async';
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 import 'package:google_cloud_firestore/google_cloud_firestore.dart';

packages/dart_firebase_admin/example/lib/functions_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 import 'package:dart_firebase_admin/functions.dart';
 

packages/dart_firebase_admin/example/lib/main.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 
 Future<void> main() async {

packages/dart_firebase_admin/example/lib/messaging_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 import 'package:dart_firebase_admin/messaging.dart';
 

packages/dart_firebase_admin/example/lib/security_rules_example.dart

@@ -1,3 +1,17 @@
+// Copyright 2025 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
 import 'package:dart_firebase_admin/dart_firebase_admin.dart';
 import 'package:dart_firebase_admin/security_rules.dart';