# Community Contribution Guidelines

If you would like to become an active contributor to this project please read the following guidelines. Contributors are not only welcomed, they are wanted!

In general, if it's going to take a long time to review a PR, we'll likely request you break it up.


# Contributing to ngMetadata

We'd love for you to contribute to our source code and to make ngMetadata even better than it is
today! Here are the guidelines we'd like you to follow:

 - [Question or Problem?](#question)
 - [Issues and Bugs](#issue)
 - [Feature Requests](#feature)
 - [Submission Guidelines](#submit)
 - [Coding Rules](#rules)
 - [Commit Message Guidelines](#commit)
 - [Further Info](#info)

## <a name="question"></a> Got a Question or Problem?

If you have questions about how to use ngMetadata, please direct these to the [ngParty slack](https://ngparty.herokuapp.com)
ngMetadata channel or [StackOverflow][stackoverflow] or just ping us on [twitter](https://twitter.com/ngPartyCz) or so

## <a name="issue"></a> Found an Issue?
If you find a bug in the source code or a mistake in the documentation, you can help us by
submitting an issue to our [GitHub Repository][github]. Even better you can submit a Pull Request
with a fix. We would appreciate if you provide a [Plunker][plunker-4.x] with simulated bug that you've found


**Please see the Submission Guidelines below**.

## <a name="feature"></a> Want a Feature?
You can request a new feature by submitting an issue to our [GitHub Repository][github].  If you
would like to implement a new feature then consider what kind of change it is:

* **Major Changes** that you wish to contribute to the project should be discussed first on our
slack channel so that we can better coordinate our efforts, prevent
duplication of work, and help you to craft the change so that it is successfully accepted into the
project.
* **Small Changes** can be crafted and submitted to the [GitHub Repository][github] as a Pull Request.


## <a name="docs"></a> Want a Doc Fix?
If you want to help improve the docs, it's a good idea to let others know what you're working on to
minimize duplication of effort. 
Comment on an issue to let others know what you're working on, or create a new issue if your work
doesn't fit within the scope of any of the existing doc fix projects.

You should also make sure that your commit message
is labeled "docs:" and follows the **Git Commit Guidelines** outlined below.

If you're just making a small change, don't worry about filing an issue first. Use the friendly blue "Improve this doc" button at the top right of the doc page to fork the repository in-place and make a quick change on the fly. When naming the commit, it is advised to still label it according to the commit guidelines below, by starting the commit message with **docs** and referencing the filename. Since this is not obvious and some changes are made on the fly, this is not strictly necessary and we will understand if this isn't done the first few times.

## <a name="submit"></a> Submission Guidelines

### Submitting an Issue
Before you submit your issue search the archive, maybe your question was already answered.

If your issue appears to be a bug, and hasn't been reported, open a new issue.
Help us to maximize the effort we can spend fixing issues and adding new
features, by not reporting duplicate issues.  Providing the following information will increase the
chances of your issue being dealt with quickly:

* **Overview of the Issue** - if an error is being thrown a non-minified stack trace helps
* **Motivation for or Use Case** - explain why this is a bug for you
* **Angular/ngMetadata/Typescript Version(s)** - is it a regression?
* **Browsers and Operating System** - is this a problem with all browsers or only IE8?
* **Reproduce the Error** - provide a live example (using [Plunker][plunker-4.x] or an unambiguous set of steps.
* **Related Issues** - has a similar issue been reported before?
* **Suggest a Fix** - if you can't fix the bug yourself, perhaps you can point to what might be
  causing the problem (line of code or commit)

Here is a great example of a well defined issue: https://github.com/angular/angular.js/issues/5069

**If you get help, help others. Good karma rulez!**

### Submitting a Pull Request
Before you submit your pull request consider the following guidelines:

* Search [GitHub](https://github.com/ngParty/ng-metadata/pulls) for an open or closed Pull Request
  that relates to your submission. You don't want to duplicate effort.
* Make your changes in a new git branch:

     ```shell
     git checkout -b my-fix-branch master
     ```

* Create your patch, **including appropriate test cases**.
* Follow our [Coding Rules](#rules).
* Run the full ngMetadata test suite, by executing `npm test` and ensure that all tests pass.
* Commit your changes using a descriptive commit message that follows our
  [commit message conventions](#commit-message-format) and passes our commit message presubmit hook
  `validate-commit-msg.js`. Adherence to the [commit message conventions](#commit-message-format)
  is required because release notes are automatically generated from these messages.

     ```shell
     git commit -a
     ```
  Note: the optional commit `-a` command line option will automatically "add" and "rm" edited files.


* Push your branch to GitHub:

    ```shell
    git push origin my-fix-branch
    ```

* In GitHub, send a pull request to `ng-metadata:master`.
* If we suggest changes then:
  * Make the required updates.
  * Re-run the ngMetadata test suite to ensure tests are still passing.
  * Commit your changes to your branch (e.g. `my-fix-branch`).
  * Push the changes to your GitHub repository (this will update your Pull Request).

If the PR gets too outdated we may ask you to rebase and force push to update the PR:

    ```shell
    git rebase master -i
    git push origin my-fix-branch -f
    ```

*WARNING. Squashing or reverting commits and forced push thereafter may remove GitHub comments
on code that were previously made by you and others in your commits.*

That's it! Thank you for your contribution!

#### After your pull request is merged

After your pull request is merged, you can safely delete your branch and pull the changes
from the main (upstream) repository:

* Delete the remote branch on GitHub either through the GitHub web UI or your local shell as follows:

    ```shell
    git push origin --delete my-fix-branch
    ```

* Check out the master branch:

    ```shell
    git checkout master -f
    ```

* Delete the local branch:

    ```shell
    git branch -D my-fix-branch
    ```

* Update your master with the latest upstream version:

    ```shell
    git pull --ff upstream master
    ```

## <a name="rules"></a> Coding Rules
To ensure consistency throughout the source code, keep these rules in mind as you are working:

* All features or bug fixes **must be tested** by one or more specs. ( We don't need browser. so we are testing against NodeJS with Mocha)

## <a name="commit"></a> Git Commit Guidelines

We have very precise rules over how our git commit messages can be formatted.  This leads to **more
readable messages** that are easy to follow when looking through the **project history**.  But also,
we use the git commit messages to **generate the AngularJS change log**.

The commit message formatting can be added using a typical git workflow or through the use of a CLI wizard ([Commitizen](https://github.com/commitizen/cz-cli)). To use the wizard, run `npm run commit` in your terminal after staging your changes in git.

### Commit Message Format
Each commit message consists of a **header**, a **body** and a **footer**.  The header has a special
format that includes a **type**, a **scope** and a **subject**:

```
<type>(<scope>): <subject>
<BLANK LINE>
<body>
<BLANK LINE>
<footer>
```

The **header** is mandatory and the **scope** of the header is optional.

Any line of the commit message cannot be longer 120 characters! This allows the message to be easier
to read on GitHub as well as in various git tools.

### Revert
If the commit reverts a previous commit, it should begin with `revert: `, followed by the header of the reverted commit. In the body it should say: `This reverts commit <hash>.`, where the hash is the SHA of the commit being reverted.

### Type
Must be one of the following:

* **feat**: A new feature
* **fix**: A bug fix
* **docs**: Documentation only changes
* **style**: Changes that do not affect the meaning of the code (white-space, formatting, missing
  semi-colons, etc)
* **refactor**: A code change that neither fixes a bug nor adds a feature
* **perf**: A code change that improves performance
* **test**: Adding missing tests
* **chore**: Changes to the build process or auxiliary tools and libraries such as documentation
  generation

### Scope
The scope could be anything specifying place of the commit change. For example `$location`,
`$browser`, `$compile`, `$rootScope`, `ngHref`, `ngClick`, `ngView`, etc...

### Subject
The subject contains succinct description of the change:

* use the imperative, present tense: "change" not "changed" nor "changes"
* don't capitalize first letter
* no dot (.) at the end

### Body
Just as in the **subject**, use the imperative, present tense: "change" not "changed" nor "changes".
The body should include the motivation for the change and contrast this with previous behavior.

### Footer
The footer should contain any information about **Breaking Changes** and is also the place to
reference GitHub issues that this commit **Closes**.

**Breaking Changes** should start with the word `BREAKING CHANGE:` with a space or two newlines. The rest of the commit message is then used for this.

A detailed explanation can be found in this [document][commit-message-format].


## <a name="info"></a> Further Information
You can find out more detailed information about contributing in the
[AngularJS documentation][contributing].



[coc]: https://github.com/angular/code-of-conduct/blob/master/CODE_OF_CONDUCT.md
[commit-message-format]: https://docs.google.com/document/d/1QrDFcIiPjSLDn3EL15IJygNPiHORgU1_OOAqWjiDU5Y/edit#
[contribute]: http://docs.angularjs.org/misc/contribute
[contributing]: http://docs.angularjs.org/misc/contribute
[dev-doc]: https://docs.angularjs.org/guide
[github]: https://github.com/ngParty/ng-metadata
[groups]: https://groups.google.com/forum/?fromgroups#!forum/angular
[individual-cla]: http://code.google.com/legal/individual-cla-v1.0.html
[irc]: http://webchat.freenode.net/?channels=angularjs&uio=d4
[js-style-guide]: http://google-styleguide.googlecode.com/svn/trunk/javascriptguide.xml
[jsfiddle]: http://jsfiddle.net/
[list]: https://groups.google.com/forum/?fromgroups#!forum/angular
[ngDocs]: https://github.com/angular/angular.js/wiki/Writing-AngularJS-Documentation
[stackoverflow]: http://stackoverflow.com/questions/tagged/ngmetadata
[unit-testing]: https://docs.angularjs.org/guide/unit-testing
[plunker-1.x]: https://plnkr.co/edit/s2lYnI
[plunker-2.x]: https://plnkr.co/edit/7Fr7oO
[plunker-3.x]: https://plnkr.co/edit/Bds0Bk
[plunker-4.x]: https://plnkr.co/edit/hsz8KF