{"id":18045,"date":"2020-06-06T13:12:50","date_gmt":"2020-06-06T20:12:50","guid":{"rendered":"https:\/\/careerkarma.com\/blog\/?p=18045"},"modified":"2023-12-01T03:20:51","modified_gmt":"2023-12-01T11:20:51","slug":"git-vs-svn","status":"publish","type":"post","link":"https:\/\/careerkarma.com\/blog\/git-vs-svn\/","title":{"rendered":"Git vs. SVN: Two Version Control Systems Compared"},"content":{"rendered":"\n

A version control system is a type of software tool that allows a development team to track how a project has evolved over time.
<\/p>\n\n\n\n

If you\u2019ve spent any time researching version control systems, you probably have heard of Git or SVN. These are examples of version control systems that allow you to track the history of a codebase.
<\/p>\n\n\n\n

But, what is the difference between these tools? How do they compare? To answer these questions, we will compare these two systems of version control like-for-like.
<\/p>\n\n\n\n

We\u2019ll start by discussing the basics of version control and how these two technologies work. Then we will compare them across a few different factors to help you understand the similarities and differences.
<\/p>\n\n\n\n

What Is Version Control?<\/h2>\n\n\n\n

Git and SVN are version control systems (VCS).
<\/p>\n\n\n\n

VCS software allows developers<\/a> to keep track of all the modifications made to a codebase. This allows you to see who has made what changes to a project and when. In addition, VCS software gives you the ability to turn back the clock and see a previous version of a repository, which you can then revert to if you want.
<\/p>\n\n\n\n

Because software developers often work in teams, having a single record of how a project has changed is essential. It helps to ensure the stability of a codebase as it evolves.<\/p>\n\n\n\n

What Is Git?<\/h2>\n\n\n\n

Git<\/a> was developed in 2005 by Linus Torvalds for development of the Linux kernel. It is a distributed version control system<\/strong>. This means that Git allows you to keep a record of all the changes made to a codebase. But, unlike other tools, Git is distributed, which means that the tool does not rely on having a single record of a repository\u2014the codebase for a project is distributed.
<\/p>\n\n\n\n

Using Git, developers can work on a codebase from anywhere. You can download a copy of a Git repository to your local computer and work on a project. When you are ready, you can push your changes to the main version of a codebase. This means that you are not dependent on a single codebase\u2014you can have multiple copies of your code across devices.
<\/p>\n\n\n\n

According to Stack Overflow\u2019s 2017 Developer Survey, more than 70 percent<\/a> of developers use Git. 
<\/p>\n\n\n\n

What Is SVN?<\/h2>\n\n\n\n

SVN, which is short for Subversion, is a centralized version control system. This means that Subversion allows you to store a record of the changes made to a project, but that history is stored on a central server.
<\/p>\n\n\n\n

Unlike Git, which is distributed, you need to have constant access to an SVN repository to push changes. These changes are saved as the developer implements them. <\/p>\n\n\n\n

In addition, instead of having a copy of a project\u2019s history on your local machine, you only have a copy of the code itself. In other words, to see how a project has evolved, you need to reference the central version of the codebase.<\/p>\n\n\n\n

Git vs. SVN: What\u2019s the Difference?<\/h2>\n\n\n\n

So far, we\u2019ve discussed the backgrounds of these technologies. Now we are ready to ask: What are the differences between these two systems of version control?
<\/p>\n\n\n\n

To make a fair comparison, we are going to discuss these tools in the context of four factors:
<\/p>\n\n\n\n

    \n
  • Architecture: Whether the version control system uses a distributed or centralized architecture.<\/li>\n\n\n\n
  • Learning Curve: How easy\u2014or how difficult\u2014it is to learn each VCL.<\/li>\n\n\n\n
  • Branching and Merging: How the branching system works for each VCL.<\/li>\n\n\n\n
  • Access Controls: How each system handles permissions.<\/li>\n<\/ul>\n\n\n\n

    Let\u2019s explore each of these factors individually.
    <\/p>\n\n\n\n

    Architecture<\/h3>\n\n\n\n

    The core difference between Git and SVN lies in the architecture.
    <\/p>\n\n\n\n

    Git\u2019s architecture is based on the distributed version control system. As a result, Git is installed on a workstation and is both a client and a server.
    <\/p>\n\n\n\n

    When a developer wants to work with a Git repository, they download a copy of that repository to their computer (in Git, “repository” just means “project”). This allows the developer to work on a project without having to be connected to a central repository all the time. Then, when they want to make changes to the main codebase, they push them to the main repository. 
    <\/p>\n\n\n\n

    SVN, on the other hand, uses a separate server and client. The only files stored on a developer\u2019s local machine are those to which they are making changes; the rest is stored on the SVN server. So, in order to make changes to an SVN repository, a developer must have constant access to the server.
    <\/p>\n\n\n\n

    The Git architecture is beneficial because it is lightweight, easy to use, and reduces dependency on a central system. However, for projects with larger files, Git can become more difficult to use.
    <\/p>\n\n\n\n

    This is because using Git involves creating copies of a repository on one\u2019s local machine. If a repository contains big files, it can be difficult to quickly and efficiently create a copy of a codebase. As a result, in projects with larger codebases, developers often favor SVN.<\/p>\n\n\n\n

    Learning Curve<\/h3>\n\n\n\n

    Both Git and SVN have similar learning curves.
    <\/p>\n\n\n\n

    The Git version control system may have an edge on account of its ubiquity. Because so many developers use Git, there is ample documentation out there to help beginners.
    <\/p>\n\n\n\n

    In addition, there is a wide developer ecosystem out there to support people learning this tool. After all, GitHub\u2014which millions of developers use to share their code\u2014supports Git.
    <\/p>\n\n\n\n

    However, Git does have a somewhat confusing syntax, which means newbies may struggle in the beginning. SVN, on the other hand, may not be so ubiquitous, but still uses a simple syntax and boasts a strong community of developers. 
    <\/p>\n\n\n\n

    Branching and Merging<\/h3>\n\n\n\n

    Git and SVN approach branching and merging differently.
    <\/p>\n\n\n\n

    SVN creates branches, tags, and trunks as a directory inside a repository. This means that, if you want to access a branch, tag, or a trunk, you need to navigate into a particular directory. Then, when you are ready to push a change to a branch, you commit it back to the trunk.
    <\/p>\n\n\n\n

    This structure can quickly grow and takes time to manage.
    <\/p>\n\n\n\n

    Git, on the other hand, uses a branch system that only references certain commits. You can create and update a branch at any time, without changing the commits that are on that branch. On Git, if you want to add a new feature to a project, you can easily create a new branch, add the feature, then merge it into master.
    <\/p>\n\n\n\n

    Most people consider the Git branching system, where branches only reference commits, to be easier to understand and manage at scale.
    <\/p>\n\n\n\n

    Access Controls<\/h3>\n\n\n\n

    When you\u2019re using SVN, you can specify different read and write access controls for each file and directory in a repository. Only people who have specific access permissions on the central repository can do this.
    <\/p>\n\n\n\n

    Git, on the other hand, makes the assumption that all contributors should have the same permissions. So, there is no central arbiter who controls access on a file-by-file basis\u2014everyone has the same permissions.
    <\/p>\n\n\n\n

    Neither system is necessarily better than the other, but for smaller projects that do not require specific access control, developers often choose Git.
    <\/p>\n\n\n\n

    The Bottom Line<\/h2>\n\n\n\n

    So then, which version control system should you learn? The answer is: It\u2019s completely up to you!
    <\/p>\n\n\n\n

    Git provides an easy-to-use version control system that is distributed and has a strong branching system that can help with source code management. In addition, Git also has a stronger following.
    <\/p>\n\n\n\n

    SVN, on the other hand, has a good access control system and a learning curve similar to that of Git. SVN a few architectural benefits too.
    <\/p>\n\n\n\n

    The version control system you learn to use should be the one that you think best suits your needs.
    <\/p>\n\n\n\n

    Do you plan on working on projects with massive files? Then, SVN could be the best choice. Or, do you know that you\u2019ll primarily be using Git at work? If so, Git may be a better investment.
    <\/p>\n\n\n\n

    Both version control systems have their own uses and applications, and knowing either one will give you a much clearer insight into how software projects are built.<\/p>\n","protected":false},"excerpt":{"rendered":"A version control system is a type of software tool that allows a development team to track how a project has evolved over time. If you\u2019ve spent any time researching version control systems, you probably have heard of Git or SVN. 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