commons-lang/CONTRIBUTING.md

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The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
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Unless required by applicable law or agreed to in writing, software
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<!---
+======================================================================+
|**** ****|
|**** THIS FILE IS GENERATED BY THE COMMONS BUILD PLUGIN ****|
|**** DO NOT EDIT DIRECTLY ****|
|**** ****|
+======================================================================+
| TEMPLATE FILE: contributing-md-template.md |
| commons-build-plugin/trunk/src/main/resources/commons-xdoc-templates |
+======================================================================+
| |
| 1) Re-generate using: mvn commons-build:contributing-md |
| |
| 2) Set the following properties in the component's pom: |
| - commons.jira.id (required, alphabetic, upper case) |
| |
| 3) Example Properties |
| |
| <properties> |
| <commons.jira.id>MATH</commons.jira.id> |
| </properties> |
| |
+======================================================================+
--->
Contributing to Apache Commons Lang
======================
You have found a bug or you have an idea for a cool new feature? Contributing code is a great way to give something back to
the open source community. Before you dig right into the code there are a few guidelines that we need contributors to
follow so that we can have a chance of keeping on top of things.
Getting Started
---------------
+ Make sure you have a [JIRA account](https://issues.apache.org/jira/).
+ Make sure you have a [GitHub account](https://github.com/signup/free).
+ If you're planning to implement a new feature it makes sense to discuss your changes on the [dev list](https://commons.apache.org/mail-lists.html) first. This way you can make sure you're not wasting your time on something that isn't considered to be in Apache Commons Lang's scope.
+ Submit a [Jira Ticket][jira] for your issue, assuming one does not already exist.
+ Clearly describe the issue including steps to reproduce when it is a bug.
+ Make sure you fill in the earliest version that you know has the issue.
+ Find the corresponding [repository on GitHub](https://github.com/apache/?query=commons-),
[fork](https://docs.github.com/en/get-started/quickstart/fork-a-repo) and check out your forked repository.
Making Changes
--------------
+ Create a _topic branch_ for your isolated work.
* Usually you should base your branch on the `master` or `trunk` branch.
* A good topic branch name can be the JIRA bug id plus a keyword, e.g. `LANG-123-InputStream`.
* If you have submitted multiple JIRA issues, try to maintain separate branches and pull requests.
+ Make commits of logical units.
* Make sure your commit messages are meaningful and in the proper format. Your commit message should contain the key of the JIRA issue.
* e.g. `LANG-123: Close input stream earlier`
+ Respect the original code style:
+ Only use spaces for indentation.
+ Create minimal diffs - disable _On Save_ actions like _Reformat Source Code_ or _Organize Imports_. If you feel the source code should be reformatted create a separate PR for this change first.
+ Check for unnecessary whitespace with `git diff` -- check before committing.
+ Make sure you have added the necessary tests for your changes, typically in `src/test/java`.
+ Run all the tests with `mvn clean verify` to assure nothing else was accidentally broken.
Making Trivial Changes
----------------------
The JIRA tickets are used to generate the changelog for the next release.
For changes of a trivial nature to comments and documentation, it is not always necessary to create a new ticket in JIRA.
In this case, it is appropriate to start the first line of a commit with '(doc)' instead of a ticket number.
Submitting Changes
------------------
+ Sign and submit the Apache [Contributor License Agreement][cla] if you haven't already.
* Note that small patches & typical bug fixes do not require a CLA as
clause 5 of the [Apache License](https://www.apache.org/licenses/LICENSE-2.0.html#contributions)
covers them.
+ Push your changes to a topic branch in your fork of the repository.
+ Submit a _Pull Request_ to the corresponding repository in the `apache` organization.
* Verify _Files Changed_ shows only your intended changes and does not
include additional files like `target/*.class`
+ Update your JIRA ticket and include a link to the pull request in the ticket.
If you prefer to not use GitHub, then you can instead use
`git format-patch` (or `svn diff`) and attach the patch file to the JIRA issue.
Additional Resources
--------------------
+ [Contributing patches](https://commons.apache.org/patches.html)
+ [Apache Commons Lang JIRA project page][jira]
+ [Contributor License Agreement][cla]
+ [General GitHub documentation](https://docs.github.com/)
+ [GitHub pull request documentation](https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request)
+ [Apache Commons Twitter Account](https://twitter.com/ApacheCommons)
+ `#apache-commons` IRC channel on `irc.freenode.net`
[cla]:https://www.apache.org/licenses/#clas
[jira]:https://issues.apache.org/jira/browse/LANG