What is GitHub submodule?

What is GitHub submodule?

Submodules are Git repositories nested inside a parent Git repository at a specific path in the parent repository’s working directory. A submodule can be located anywhere in a parent Git repository’s working directory and is configured via a . gitmodules file located at the root of the parent repository.

Is git submodule useful?

Its more accurate to say that git submodules are useful when you want to share code that you also need change along with the consumer of that code. If you’re not trying to change the shared code along with the consumer of that code, there are better options for sharing your code.

How do I add a submodule to GitHub?

How to create submodules in GitHub

1. Clone the parent or top-level repository.
2. In the root of the parent, issue a “git submodule add” command and provide the GitHub repository’s URL.
3. Issue a “git status” command to verify a .
4. Add the .
5. Push the GitHub submodule add commit back to the server.

What is git submodule sync?

git submodule sync synchronizes all submodules while git submodule sync — A synchronizes submodule “A” only. If –recursive is specified, this command will recurse into the registered submodules, and sync any nested submodules within.

What does git submodule do?

Git submodules allow you to keep a git repository as a subdirectory of another git repository. Git submodules are simply a reference to another repository at a particular snapshot in time. Git submodules enable a Git repository to incorporate and track version history of external code.

What does git submodule add do?

Submodules allow you to keep a Git repository as a subdirectory of another Git repository. This lets you clone another repository into your project and keep your commits separate.

How do I undo a submodule commit?

To change the commit that a submodule points to, you need to checkout that version in the submodule, then go back to the containing repo, add and commit that change. Or, if you want the submodule to be on the version the top repo points to, do git submodule update –recursive . Add –init if you’ve just cloned.

How do I add a submodule to a repository?

In order to add a Git submodule, use the “git submodule add” command and specify the URL of the Git remote repository to be included as a submodule. When adding a Git submodule, your submodule will be staged. As a consequence, you will need to commit your submodule by using the “git commit” command.

What is a submodule in Python?

How is this done? In my limited experience, modules with submodules are simply folders with a __init__.py file, while modules with functions/classes are actual python files.

Where does git store submodule commit?

It is stored in Git’s object database directly. The tree object for the directory where the submodule lives will have an entry for the submodule’s commit (this is the so-called “gitlink”).

How do I add a submodule to a project?

When to use Git submodule?

Git submodules are a way of linking to a repository inside another. For example, if your project needs to use someone else’s project that’s hosted on Github then you can use it as a submodule rather than including all the code from that project.

How do Git submodules work?

How Git Submodules Work. Git submodules are just other Git repositories that are cloned somewhere into your project’s working tree. Each submodule is registered in a special configuration file called .gitmodules in your project’s root directory, containing the remote repository URL and the path where it resides in your work tree.

How to pull submodules Git?

To pull a Git submodule, use the “git submodule update” command with the “-init” and the “-recursive” options. Going back to the example we described before : let’s pretend that we are in a complete new Git repository created by our colleague.

What is a Git submodule?

A submodule is a marker (commit) to another Git repository which is not bound by the main project development cycle: it (the “other” Git repo) can evolves independently. It is up to the main project to pick from that other repo whatever commit it needs.