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CONTRIBUTING.md

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Introduction

Thank you for considering contributing to Kluent! A lot of the assertions within this library come from the community, which is awesome!

Development Guide

We're looking for all kinds of contributions, may it be additional assertions, updates to the docs, better assertion failure messages or filing issues.

GitHub Workflow

  1. Fork this repository on GitHub.

  2. Clone your fork locally:

    $ git clone <url-to-your-fork>

  3. Add the official repository (upstream) as a remote repository:

    $ git remote add upstream https://github.com/MarkusAmshove/Kluent.git

  4. Build the project once to download all dependencies (or import it in your IDE):

    $ ./gradlew build

    This will download gradle if it isn't already on your machine and also download all dependencies of Kluent. Furthermore it'll build the project and execute all tests.

  5. Create a branch for your bugfix or feature based off the master branch:

    $ git checkout -b <name-bugfix-or-feature> master

  6. If the changes you make take a few days, be sure to occasionally pull the latest changes from upstream, to ensure that your local branch is up-to-date:

    $ git pull upstream master

  7. When your work is done, push your local branch to your fork:

    $ git push origin <name-of-bugfix-or-feature>

  8. Create a pull request on GitHub.

NOTE: When the build fails after your changes and you don't know why, don't hesitate to create a pull request anyway, we might be able to help you!

Building Kluent

All projects of Kluent are built with Gradle

The default gradlew build will only build the common and jvm module, to keep the build times as small as possible.

If you plan to submit a pull request, it is also fine if you just make sure it builds and tests against common and jvm (which gradlew build will make sure of), because the rest of the heavy work will be done by Travis and AppVeyor. That way you can keep your machine free from NodeJS and Kotlin Native :-)

To build the Android library, pass the parameter ANDROID to Gradle. This will build the common and android artifacts. To pass the parameter, type:

gradlew build -PANDROID

To also build the JS module, pass JS:

gradlew build -PJS

To build native, pass:

gradlew build -PNATIVE

In these cases, the JVM module will also be built, because it is our primary target and everything should pass on the JVM. To skip the JVM build, e.g. for testing only against Native or JS, pass SKIPVM:

gradlew build -PJS -PNATIVE -PSKIPJVM

This command will build common, js, native, but not jvm.

Where to put new features

If you plan to add a feature (e.g. an Assertion), it would be nice to first try adding it to the common module, as it would then be available to all platforms. If it uses specific APIs, like classes from the Java standard library, then it needs to go to the jvm module.

If you're unsure where to put a feature, or if you want to put something in the common module which needs platform specific implementations, you can have a look here (platformIsDigit or platformClassName) where a function in the common module calls a so called expect function, which is defined here in the common module and has specific JVM, JS and Native implementation.

If you're still unsure how to make something platform independent, we can have a look together inside the PR :-)

Coding Style

Our coding style is the default code style coming with IntelliJ.