jiti-meet/CONTRIBUTING.md

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# How to contribute
We would love to have your help. Before you start working however, please read
and follow this short guide.
# Reporting Issues
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Provide as much information as possible. Mention the version of Jitsi Meet,
Jicofo and JVB you are using, and explain (as detailed as you can) how the
problem can be reproduced.
# Code contributions
Found a bug and know how to fix it? Great! Please read on.
## Contributor License Agreement
While the Jitsi projects are released under the
[Apache License 2.0](https://github.com/jitsi/jitsi-meet/blob/master/LICENSE), the copyright
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holder and principal creator is [8x8](https://www.8x8.com/). To
ensure that we can continue making these projects available under an Open Source license,
we need you to sign our Apache-based contributor
license agreement as either a [corporation](https://jitsi.org/ccla) or an
[individual](https://jitsi.org/icla). If you cannot accept the terms laid out
in the agreement, unfortunately, we cannot accept your contribution.
## Creating Pull Requests
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- Make sure your code passes the linter rules beforehand. The linter is executed
automatically when committing code.
- Perform **one** logical change per pull request.
- Maintain a clean list of commits, squash them if necessary.
- Rebase your topic branch on top of the master branch before creating the pull
request.
## Coding style
### Comments
* Comments documenting the source code are required.
* Comments from which documentation is automatically generated are **not**
subject to case-by-case decisions. Such comments are used, for example, on
types and their members. Examples of tools which automatically generate
documentation from such comments include JSDoc, Javadoc, Doxygen.
* Comments which are not automatically processed are strongly encouraged. They
are subject to case-by-case decisions. Such comments are often observed in
function bodies.
* Comments should be formatted as proper English sentences. Such formatting pays
attention to, for example, capitalization and punctuation.
### Duplication
* Don't copy-paste source code. Reuse it.
### Formatting
* Line length is limited to 120 characters.
* Sort by alphabetical order in order to make the addition of new entities as
easy as looking a word up in a dictionary. Otherwise, one risks duplicate
entries (with conflicting values in the cases of key-value pairs). For
example:
* Within an `import` of multiple names from a module, sort the names in
alphabetical order. (Of course, the default name stays first as required by
the `import` syntax.)
````javascript
import {
DOMINANT_SPEAKER_CHANGED,
JITSI_CLIENT_CONNECTED,
JITSI_CLIENT_CREATED,
JITSI_CLIENT_DISCONNECTED,
JITSI_CLIENT_ERROR,
JITSI_CONFERENCE_JOINED,
MODERATOR_CHANGED,
PEER_JOINED,
PEER_LEFT,
RTC_ERROR
} from './actionTypes';
````
* Within a group of imports (e.g. groups of imports delimited by an empty line
may be: third-party modules, then project modules, and eventually the
private files of a module), sort the module names in alphabetical order.
````javascript
import React, { Component } from 'react';
import { connect } from 'react-redux';
````
### Indentation
* Align `switch` and `case`/`default`. Don't indent the `case`/`default` more
than its `switch`.
````javascript
switch (i) {
case 0:
...
break;
default:
...
}
````
### Naming
* An abstraction should have one name within the project and across multiple
projects. For example:
* The instance of lib-jitsi-meet's `JitsiConnection` type should be named
`connection` or `jitsiConnection` in jitsi-meet, not `client`.
* The class `ReducerRegistry` should be defined in ReducerRegistry.js and its
imports in other files should use the same name. Don't define the class
`Registry` in ReducerRegistry.js and then import it as `Reducers` in other
files.
* The names of global constants (including ES6 module-global constants) should
be written in uppercase with underscores to separate words. For example,
`BACKGROUND_COLOR`.
* The underscore character at the beginning of a name signals that the
respective variable, function, property is non-public i.e. private, protected,
or internal. In contrast, the lack of an underscore at the beginning of a name
signals public API.