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Contributing to FlutterFire

Build Status

See also: Flutter's code of conduct

Things you will need

  • Linux, Mac OS X, or Windows.
  • git (used for source version control).
  • An ssh client (used to authenticate with GitHub).

Getting the code and configuring your environment

  • Ensure all the dependencies described in the previous section are installed.
  • Fork https://github.com/FirebaseExtended/flutterfire into your own GitHub account. If you already have a fork, and are now installing a development environment on a new machine, make sure you've updated your fork so that you don't use stale configuration options from long ago.
  • If you haven't configured your machine with an SSH key that's known to github, then follow GitHub's directions to generate an SSH key.
  • git clone git@github.com:<your_name_here>/flutterfire.git
  • cd plugins
  • git remote add upstream git@github.com:FirebaseExtended/flutterfire.git (So that you fetch from the master repository, not your clone, when running git fetch et al.)

Running the examples

To run an example with a prebuilt binary from the cloud, switch to that example's directory, run pub get to make sure its dependencies have been downloaded, and use flutter run. Make sure you have a device connected over USB and debugging enabled on that device.

  • cd packages/cloud_firestore/example
  • flutter run

Running the tests

Flutter plugins have both unit tests of their Dart API and integration tests that run on a virtual or actual device.

To run the unit tests:

flutter test test/<name_of_plugin>_test.dart

To run the integration tests:

cd example
flutter drive test/<name_of_plugin>.dart

Contributing code

We gladly accept contributions via GitHub pull requests.

Please peruse the Flutter style guide and design principles before working on anything non-trivial. These guidelines are intended to keep the code consistent and avoid common pitfalls.

To start working on a patch:

  • git fetch upstream
  • git checkout upstream/master -b <name_of_your_branch>
  • Hack away.
  • Verify changes with flutter_plugin_tools
pub global activate flutter_plugin_tools
pub global run flutter_plugin_tools format --plugins plugin_name
pub global run flutter_plugin_tools analyze --plugins plugin_name
pub global run flutter_plugin_tools test --plugins plugin_name
  • git commit -a -m "<your informative commit message>"
  • git push origin <name_of_your_branch>

To send us a pull request:

  • git pull-request (if you are using Hub) or go to https://github.com/FirebaseExtended/flutterfire and click the "Compare & pull request" button

Please make sure all your checkins have detailed commit messages explaining the patch.

For pull requests that affect only one Flutterfire plugin, use a title that starts with the name of the plugin in brackets (e.g. [cloud_firestore]).

Plugins tests are run automatically on contributions using Cirrus CI. However, due to cost constraints, pull requests from non-committers may not run all the tests automatically.

The plugins team prefers that unit tests are written using setMockMethodCallHandler rather than using mockito to mock out MethodChannel. For a list of the plugins that are still using the mockito testing style and need to be converted, see issue 34284. If you are contributing tests to an existing plugin that uses mockito MethodChannel, consider converting them to use setMockMethodCallHandler instead.

Once you've gotten an LGTM from a project maintainer and once your PR has received the green light from all our automated testing, wait for one the package maintainers to merge the pull request and pub submit any affected packages.

You must complete the Contributor License Agreement. You can do this online, and it only takes a minute. If you've never submitted code before, you must add your (or your organization's) name and contact info to the AUTHORS file.

The review process

  • This is a new process we are currently experimenting with, feedback on the process is welcomed at the Gitter contributors channel. *

Reviewing PRs often requires a non trivial amount of time. We prioritize issues, not PRs, so that we use our maintainers' time in the most impactful way. Issues pertaining to this repository are managed in the flutter/flutter issue tracker and are labeled with "plugin". Non trivial PRs should have an associated issue that will be used for prioritization. See the prioritization section in the Flutter wiki to understand how issues are prioritized.

Newly opened PRs first go through initial triage which results in one of:

  • Merging the PR - if the PR can be quickly reviewed and looks good.
  • Closing the PR - if the PR maintainer decides that the PR should not be merged.
  • Moving the PR to the backlog - if the review requires non trivial effort and the issue isn't a priority; in this case the maintainer will:
    • Make sure that the PR has an associated issue labeled with "plugin".
    • Add the "backlog" label to the issue.
    • Leave a comment on the PR explaining that the review is not trivial and that the issue will be looked at according to priority order.
  • Starting a non trivial review - if the review requires non trivial effort and the issue is a priority; in this case the maintainer will:
    • Add the "in review" label to the issue.
    • Self assign the PR.
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