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CONTRIBUTING.md

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Contributing to NodeMCU

👍🎉 First off, thanks for taking the time to contribute! 🎉👍

The following is a set of guidelines for contributing to NodeMCU on GitHub. These are just guidelines, not rules, use your best judgment and feel free to propose changes to this document in a pull request.

It is appreciated but optional if you raise an issue before you start changing NodeMCU, discussing the proposed change; emphasising that the you are proposing to develop the patch yourself, and outling the strategy for implementation. This type of discussion is what we should be doing on the issues list and it is better to do this before or in parallel to developing the patch rather than having "you should have done it this way" type of feedback on the PR itself.

Table Of Contents

Development environment setup

Use the platform and tools you feel most comfortable with. There are no constraints imposed by this project. You have (at least) two options to set up the toolchain to build the NodeMCU firmware:

Working with Git and GitHub

Pull requests for new features and major fixes should be opened against the dev branch.

Avoid intermediate merge commits. Rebase your feature branch onto dev to pull updates and verify your local changes against them before placing the pull request.

General flow

  1. Fork the NodeMCU repo on GitHub.
  2. Create a branch in your fork on GitHub based on the dev branch.
  3. Clone the fork on your machine with git clone https://github.com/<your-account>/<nodemcu-fork>.git
  4. cd <nodemcu-fork> then run git remote add upstream https://github.com/nodemcu/nodemcu-firmware.git
  5. git checkout <branch-name>
  6. Make changes to the code base and commit them using e.g. git commit -a -m 'Look ma, I did it'
  7. When you're done:
  8. Squash your commits into one. There are several ways of doing this.
  9. Bring your fork up-to-date with the NodeMCU upstream repo (see below). Then rebase your branch on dev running git rebase dev.
  10. git push
  11. Create a pull request (PR) on GitHub.

This is just one way of doing things. If you're proficient in Git matters you're free to choose your own. If you want to read more then the GitHub chapter in the Git book is a way to start. GitHub's own documenation contains a wealth of information as well.

Keeping your fork in sync

You need to sync your fork with the NodeMCU upstream repository from time to time, latest before you rebase (see flow above).

  1. git fetch upstream
  2. git checkout dev but you may do this for master as well
  3. git merge upstream/dev

Commit messages

From: http://git-scm.com/book/ch5-2.html

Short (50 chars or less) summary of changes

More detailed explanatory text, if necessary.  Wrap it to about 72
characters or so.  In some contexts, the first line is treated as the
subject of an email and the rest of the text as the body.  The blank
line separating the summary from the body is critical (unless you omit
the body entirely); tools like rebase can get confused if you run the
two together.

Further paragraphs come after blank lines.

 - Bullet points are okay, too

 - Typically a hyphen or asterisk is used for the bullet, preceded by a
   single space, with blank lines in between, but conventions vary here

Don't forget to reference affected issues in the commit message to have them closed automatically on GitHub.

Amend your commit messages if necessary to make sure what the world sees on GitHub is as expressive and meaningful as possible.