Add a Github WordPress plugin to the wordpress.org repository

First. Get approved at wordpress.org.

Once the plugin team approves the plugin, you can get started. This lays out everything using the command line, you can fill in with your GUI of choice as desired.

Change to your plugins new home on your computer locally. This should be an empty directory.

Checkout the repository from .org (must use “https”!). You will need to accept the certificate the first time, (p) for permanently.
```
svn co https://plugins.svn.wordpress.org/sewn-in-xml-sitemap .
```
Change directory to the trunk
```
cd trunk
```

Clone the plugin files from Github

git clone git@github.com:jupitercow/sewn-in-xml-sitemap.git .

Change back to parent directory
```
cd ../
```
Check the SVN status, you will see git files listed, we need them to not be seen by SVN
```
svn status
```
Add SVN ignores to keep GIT out of your SVN repo on .org, the line break after `.git` is important
```
svn propset svn:ignore '.git
.gitignore
README.md' trunk
```

Add `.gitignore` file to keep SVN out of your repo on Github

*~
.DS_Store
.svn
.cvs
*.bak
*.swp
Thumbs.db
/.DS_Store
/.svn

Add everything to the SVN repo
```
svn add * --force
```
Remove things if something went wrong
```
svn revert [filename]
```
Create a tag to get started
```
svn copy trunk tags/1.0.4
```
Commit the SVN where the username and password are from `http://wordpress.org/plugins/`
```
svn --username [username] --password [password] commit -m 'initial commit'
```

Gist

https://gist.github.com/jupitercow/2c20dfc9cd870dde0e0d