I started to contribute code to the open source community and tested it. The method is as follows

Github believes that it has become a well-known code hosting tool, but after visiting a number of surrounding programming enthusiasts, I found that its use is limited to downloading the project source code and backing up the project source code. Today I will introduce a more important use. Scene contribution code

Take swoole as an example:

Fork project

First, you need to fork the project, enter the project page, and click the Fork button in the upper right corner
The swoole/swoole-src project will appear in your github account
Use the following command on your local computer (Linux): Get a swoole-src folder

git clone git@github.com:samt42/swoole-src.git

Get the original project code

Go to the swoole-src folder and add the remote address of swoole

git remote add upstream https://github.com/swoole/swoole-src.git

Get the latest source code of swoole

git pull upstream master

Now we're on the forked master branch, which is reserved for remote code tracking upstream...

create branch

Well, now we can start contributing our code.
According to international practice, we generally do not submit new code on master, but need to create a new branch for new features or fixbugs, and then merge into master, use the following code to create a branch
```
git checkout -b branch1
```
Now we can change the code on the branch
Assuming we have added some code, commit to the codebase
```
git commit -a -m "new commit"
```

Merge Modifications

A common problem is that the remote upstream (swoole/swoole-src) has a new update, which will cause conflicts when we submit Pull Requests, so we can submit the commits of other remote developers with us before submitting. The commit merge.
Switch to the master branch with the following code:
```
git checkout master
```
Use the following code to pull the latest code from the remote:
```
git pull upstream master
```

Switch back to branch1:

git checkout branch1

> 如果忘记自己之前建的分支名可以用 `git branch` 查看

Merge master's commit into branch1:
```
git rebase master
```
把更新代码提交到自己的 branch1 中:
```
git push origin branch1
```

Pull Request

提交 Pull Request
你可以在你的 github 代码仓库页面切换到 branches 页面点击 branch1 分支后点击 New pull request 按钮, 添加相关注释后提交.
OR
切换到 branch1 分支的代码仓库点击 Compare & pull request 按钮, 添加相关注释后提交.