30-04-2021



  1. Github Repository Admin
  2. Github Add Readme
Tutorial

Overview¶

Core projects are saved locally on your computer, and therefore if you want to move them between computers, or share the project file with someone else, you will need a way to upload them.

Core project files are actually quite small, so it is possible to just upload them to any cloud server. What using GitHub will allow you to do is synchronize changes to an online version, and keep a history of the changes. You can go back to an older version, back up your project, and collaborate with others on the same project.

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The Core Project File¶

Core project files, called Maps are stored in a different place from the Core Editor and Launcher.

There are two ways to find your project folder: the normal way you would find any file saved on your computer using the File Explorer, and directly from the Core Editor itself.

Open the Project File using the File Explorer¶

  1. Open My Documents
  2. Find and open the folder called My Games
  3. Inside, you should find a folder called Core (it may be CORE).
  4. Open the Saved folder
  5. Open the Maps folder
  6. In this folder, you should one folder for each saved project in the Core Editor.

Open the Project File from the Core Editor¶

  1. Open your project in the Core Editor.
  2. Click File in the top menu bar.
  3. Select Show Project in Explorer

GitHub Desktop¶

GitHub Desktop is a program that allows you to easily using Git and GitHub for saving changes to a project. It is not the only way to do so, but the most straight-forward to start out with.

Install GitHub Desktop¶

You can install GitHub Desktop using the link to download on their website.

Create a GitHub Account¶

Once GitHub Desktop has installed, it will prompt you to create an account. This redirects to the GitHub web page again, and then will log you on to GitHub desktop.

Once you have entered your GitHub credentials, you will also be asked to give a name and e-mail. The login is to check if you are the person who gets to change the file, and this second name and e-mail step is just to display who made the changes, and can be your name or something generic.

You can log in to a GitHub account, and change the name by clicking File and selecting Options.

Adding the Project¶

Projects saved using Git are called repositories.

Add the Project as a Repository¶

Click File and select Add local repository....

Note

The 'New repository...' option will not work for an existing project. Although the Menu option looks identical to the menu that you are redirected to you, the 'New repository...' choice will actually create a folder inside of your project, and only keep track of things that are inside that folder.

  1. In the Local path field, click Choose and navigate to your project folder.
  2. You will see a warning that says: This directory does not appear to be a Git repository
  3. Click the create a repository link.
  4. The Name field should match the project folder name. Do not change this.
  5. Make sure the Git ignore field is set to None.

You can add a license, which determines the ways other people are allowed to use your project, but this will only matter if you choose to make it public when it is uploaded. You can learn more about licensing your repository on GitHub's website.

Check out Your History¶

Once you have added the project, you can see all the files that got saved the first time by clicking thing History tab. The Changes tab shows files that have been changed but not saved using a commit, which you will learn how to do in the next section.

Saving Project Changes¶

Github Repository Readme

In the next step, we will talk about how to save (commit) your changes and upload (push) the changes to an online version of the project, a remote repository.

Ignore Files¶

The Core Editor does not need every file in the folder to open a project. Some are generated when the project opens, so you can save time and space by not uploading those files. This is what a .gitignore file does.

It is literally just a list of file and folder names that Git does not need to keep track of.

  1. In the top toolbar, select Repository and then Repository settings....

  2. In the menu that pops up, select the Ignore files tab.

  3. Copy and paste the text below into the text box:

Make a Commit¶

Once your Core Project has been added to GitHub desktop, any time you save changes to the project, the changed files should show up in the Changes tab.

Below the changed files, find the Summary field. Here is where you write a quick description of the changes made in this Commit.

What you write here will be your reference for the most recent changes made, so that if you needed to go back, you would know the state of the project at that point.

Uploading a Project¶

With a local git repository, you have a saved record of the different stages of a project. To back it up online, and to make it so that you can download the project onto different machines easily, you will need a remote repository, which will be another copy of the project files, and the record of the changes, hosted online.

Create a Remote Repository¶

Once you have committed all your changes, you will see an option suggesting that you publish your repository on GitHub.

Click the Publish repository button to open a dialogue to put the project on the GitHub website.

You can change the title, or keep the one from the local repository. Check the Keep this code private box if you do not want others to be able to copy the project.

Find the Project on GitHub¶

With a remote repository, you can see the files of the project, and the history of the changes made in each of your commits.

Press Ctrl+Shift+G, or select Repository in the top menu bar, and click View on GitHub to see the project page.

Add a README¶

Why Create a README¶

This step is optional, and probably not necessary if you made your code private. However, if you want other people to be able to see and use your code, a README will allow you to write an introduction to the project, where you can explain your goals, keep a record of changes, and post links to resources you are using.

Add the README from the GitHub page¶

Click the Add a README button at the bottom of the project.

This will open a new file that contains the title and description you created for your project. This is written in the Markdown language, which allows you to format text in document. Learn more about writing in Markdown here.

Commit the New README file¶

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Once you have added more to the description of the project, add a commit message, select Commit directly to the main branch and click Commit new file.

Pushing and Pulling Changes¶

Currently, we have a three step work-flow to back up the project to GitHub:

  1. Save changes to the project and scripts in Core.
  2. Commit a set of changes in GitHub Desktop.
  3. Push those changes to the remote GitHub repository.

However, if you added a new README, then currently there are changes on the remote repository that are not in your local repository. To get the readme on the local project, you will need to pull the changes

Pull Changes from the Remote Repository¶

Origin is how GitHub Desktop will refer to remote repository. To get those changes locally, click either of the Pull origin buttons that are displayed.

It is recommended that you close your current game before pulling, otherwise Core might not pick up all of the incoming changes!

Once the project is finished pulling the changes, click the History tab to confirm. You should see the commit message you made to add the README at the top.

Push New Changes¶

You do not need to immediately push after every commit, but it is a good idea to push all your changes whenever your stop working.

After committing your most recent changes, click the Push origin button to send all the commits made since your last push up to the remote version of the project.

Downloading a Project¶

If you want to download the project onto a different computer, or allow someone else to download and work on it, you can do this by cloning it.

Find or Fork a Remote Repository¶

You can clone a project from its page on GitHub. The top right of every project has a button that says Clone.

If you are using a project created by someone else, and want to be able to push your changes to GitHub, you should first fork the repository, which makes a separate copy on your GitHub account. You can test this with this Core Academy Sample Project. Click the Fork button to copy it to your own GitHub.

If your project is private, you can only see it if you are logged in to GitHub.

Clone with GitHub Desktop¶

When you click the Clone button on a GitHub repository, you will see the option to Open in Desktop. Click this to use GitHub desktop to clone.

Change the location to the Maps folder where your other Core projects are stored.

Check Core for the Project¶

If your project has been cloned into the Maps, it will automatically appear in the Create tab of Core. Open Core to confirm that the project was saved in the correct place.

Using Git for Collaboration¶

Git is also a tool for collaboration. It can allow you to work on the same project with someone else, and keep track of your individual changes.

Organize Your Project¶

The challenge with working on a project at the same time as someone else, is what should happen if you both change something. This creates a merge conflict, where it is unclear which set of changes should stay, and which should get tossed out.

The easiest way to avoid this is work on separate parts of the project. Folders created in Core create actually folders in the files for your project. You can use them to separate objects so that you and your collaborators do not change the same parts of the project.

Create a Branch¶

Up until now, you have only used the default branch, main. Branches allow you to separate your changes from the main project, and then integrate them back in when you are finished, by merging.

  1. Click the Current branch tab in the project, which is most likely on main.
  2. Select New branch, and give the branch the name of the feature that you will be creating on it.

Now, if you commit, it will be saved on the new branch, but not the main branch. You can also push those changes to a remote version of the branch.

Create a Pull Request¶

If you are collaborating with someone else, you should use a pull request when your changes are finished to integrate it into the main project. You can learn how to create a pull request on GitHub.

Merge a Branch Locally¶

If you are not collaborating, you can merge the changes on to your local main branch, and then push to GitHub.

  1. Change the current branch to main.
  2. Press Ctrl+Shift+M or click Branch in the top menu and select Merge into current branch.
  3. Select the branch whose changes you want to merge.

Using Templates¶

Creating templates is an easy way to have multiple contributors to a project, without having to use Git. See the Template Reference for more information on how to do this.

Version Control Terminology¶

GitA system for tracking changes in a project.
GitHubOne of several websites that allows cloud storage of Git projects
HistoryThe list of changes to files in a project
.gitignoreA special file that lists all the files and folders that do not need to be tracked with Git
RepositoryA project that is tracked with Git. Sometimes shortened to repo
Local RepositoryThe tracked version of a project saved on your computer
Remote RepositoryAn online version of the project, which can be shared and downloaded onto other computers
CommitA record of a set of changes
READMEA file in a repository that will be shown on the main repository page on GitHub
PushSend changes from a local repository to the remote repository
PullGet changes from a remote repository on a local repository
ForkMake a copy on your own GitHub of a project
CloneDownload a local copy of a project
BranchA way of separating changes from the main project
MergeThe way to move changes from one branch onto another
Merge ConflictThe result of changing the same file on different branches that must be resolved by choosing which changes to keep in each file.

Learn More¶

Github Add Readme

Template Reference | Complex Modeling | Publishing