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# Contributing to Rspamd

:tada: First off, thanks for taking the time to contribute! :tada:

The following is a set of guidelines for contributing to Rspamd and its packages, which are hosted in
the [Rspamd Organization](https://github.com/rspamd) on GitHub. These are mostly guidelines, not rules. Use your best
judgment, and feel free to propose changes to this document in a pull request. This contribution policy is heavily
inspired by [Atom editor](https://github.com/atom/atom).

#### Table Of Contents

[I don't want to read this whole thing, I just have a question](#i-dont-want-to-read-this-whole-thing-i-just-have-a-question)

[How Can I Contribute?](#how-can-i-contribute)

* [Reporting Bugs](#reporting-bugs)

[Styleguides](#styleguides)

* [Git Commit Messages](#git-commit-messages)
* [Lua style guide](#lua-styleguide)

## I don't want to read this whole thing I just have a question

> **Note:** Please don't file an issue to ask a question. You'll get faster results by using the resources below.

We have an official site with a detailed FAQ and various community support resources.

* [Support channels explained](https://rspamd.com/support.html)
* [Rspamd FAQ](https://rspamd.com/doc/faq.html)

The best way to ask a question and to get a relevant reply is the mailing list:

* [Join Rspamd mailing lists](https://lists.rspamd.com/)

If chat is more your speed, you can join the Rspamd developers and users using Telegram or IRC:

* [Join Rspamd telegram channel](http://t.me/rspamd)
* [Join Rspamd IRC channel](https://oftc.net/):
    * server: ircs://irc.oftc.net:6697
    * channel: #rspamd

Please bear in mind that even though telegram/irc are chat services, sometimes it takes several hours for community
members to respond — please be patient!

## How Can I Contribute?

### Reporting Bugs

This section guides you through submitting a bug report for Rspamd. Following these guidelines helps maintainers and the
community understand your report :pencil:, reproduce the behavior :computer: :computer:, and find related reports :
mag_right:.

When you are creating a bug report, please [include as many details as possible](#how-do-i-submit-a-good-bug-report).
Fill out the required template, the information it asks for helps us resolve issues faster.

> **Note:** If you find a **Closed** issue that seems like it is the same thing that you're experiencing, open a new
> issue and include a link to the original issue in the body of your new one.

#### Before Submitting A Bug Report

* Read about bug reporting in general: https://rspamd.com/doc/faq.html#how-to-report-bugs-found-in-rspamd
* Enable relevant debugging logs: https://rspamd.com/doc/faq.html#how-to-debug-some-module-in-rspamd
* Check the FAQs about Core files in case of fatal
  crash: https://rspamd.com/doc/faq.html#how-to-figure-out-why-rspamd-process-crashed
* Check that your issue isn't already filed: https://github.com/issues?utf8=%E2%9C%93&q=is%3Aissue+user%3Arspamd
* Check that there is not already an experimental package or master branch

#### How Do I Submit A (Good) Bug Report?

Explain the problem and include additional details to help maintainers reproduce the problem:

* **Use a clear and descriptive title** for the issue to identify the problem.
* **Describe the exact steps which reproduce the problem** in as many details as possible. For example, start by
  explaining how you started Rspamd, e.g. which custom configuration are you using, or what message have you scanned.
  When listing steps, **don't just say what you did, but explain how you did it**.
* **Provide specific examples to demonstrate the steps**. Include links to files or GitHub projects, or copy/pasteable
  snippets, which you use in those examples. If you're providing snippets in the issue,
  use [Markdown code blocks](https://help.github.com/articles/markdown-basics/#multiple-lines).
* **Describe the behavior you observed after following the steps** and point out what exactly is the problem with that
  behavior.
* **Explain which behavior you expected to see instead and why.**
* **If you're reporting that Rspamd crashed**, include a crash report with a stack trace from the operating
  system: https://rspamd.com/doc/faq.html#how-to-figure-out-why-rspamd-process-crashed
* **If the problem wasn't triggered by a specific action**, describe what you were doing before the problem happened and
  share more information using the guidelines below.

Provide more context by answering these questions:

* **Did the problem start happening recently** (e.g. after updating to a new version of Rspamd) or was this always a
  problem?
* If the problem started happening recently, **can you reproduce the problem in an older version of Rspamd?** What's the
  most recent version in which the problem doesn't happen? You can download older versions of Rspamd
  from [the releases page](https://github.com/rspamd/rspamd/releases).
* **Can you reliably reproduce the issue?** If not, provide details about how often the problem happens and under which
  conditions it normally happens.
* If the problem is related to scanning messages, **does the problem happen for all messages or only some?**

Include details about your configuration and environment:

* **Which version of Rspamd are you using?** Use `rspamd --version` to get the detailed information about the version
  and the compile flags used.
* **What's the name and version of the OS you're using**?
* **What hardware are you using, including CPU generation**, e.g. Intel Haswell or ArmV7? If you have `gcc` installed,
  that could be achieved by the following command: `gcc -march=native -Q --help=target|grep march`. In Linux, you can
  also check `/proc/cpuinfo` file for the required details.

## Styleguides

### Git Commit Messages

* Use the present tense ("Add feature" not "Added feature")
* Use the imperative mood ("Move cursor to..." not "Moves cursor to...")
* Limit the first line to 72 characters or less (without tag)
* Reference issues and pull requests liberally after the first line
* Consider starting the commit message with an applicable tag:
    * [Minor] - minor issue/improvement not worth to mention in ChangeLog
    * [Feature] - a significant feature
    * [Fix] - bug fix
    * [CritFix] - critical bug fix worth a new version releasing
    * [Rework] - some significant logic rework
    * [Conf] - configuration change
    * [Rules] - rules change

### Lua styleguide

Please use the following [Lua style guide](lua_style.md) when contributing changes to Lua code. This guide is both
applicable for rules, libraries and plugins.