Why Git integrates with CI/CD - Why It Works

Introduction

Git is a tool to save and track changes in code. CI/CD helps automatically test and deliver code. Connecting Git with CI/CD means every code change can be checked and sent out quickly without mistakes.

When you want to automatically test your code every time you save changes.

When you want to deliver new features to users faster and safer.

When you want to avoid manual errors in building and deploying your app.

When multiple people work on the same code and you want to keep it stable.

When you want to see if your code works well before sharing it with others.

Commands

This command starts a new Git project in your folder so you can track changes.

Terminal

git init

Expected Output

Initialized empty Git repository in /home/user/my-app/.git/

This command tells Git to watch all files in the folder for changes to include in the next save.

Terminal

git add .

Expected Output

No output (command runs silently)

This saves the current state of your files with a message describing the change.

Terminal

git commit -m "Initial commit"

Expected Output

[master (root-commit) abcdef1] Initial commit

 5 files changed, 100 insertions(+)

 create mode 100644 README.md

→

-m - Adds a message describing the commit

This sends your saved changes to a remote server where CI/CD can start testing and deploying.

Terminal

git push origin main

Expected Output

Enumerating objects: 5, done.

Counting objects: 100% (5/5), done.

Delta compression using up to 4 threads

Compressing objects: 100% (3/3), done.

Writing objects: 100% (5/5), 1.2 KiB | 1.2 MiB/s, done.

Total 5 (delta 0), reused 0 (delta 0)

To https://github.com/example/my-app.git

 * [new branch]      main -> main

Key Concept

If you remember nothing else from this pattern, remember: connecting Git to CI/CD lets your code changes automatically trigger tests and deployments to catch errors early and deliver faster.

Common Mistakes

Not pushing code to the remote repository after committing.

CI/CD systems only start when they see new code on the remote server, so no push means no automation.

Always run 'git push origin main' after committing to send changes to the remote repository.

Committing large or unnecessary files.

This slows down the CI/CD process and can cause failures or delays.

Use a .gitignore file to exclude files that don't need to be tracked or tested.

Summary

Initialize a Git repository to start tracking your project files.

Add and commit your changes locally with clear messages.

Push your commits to a remote repository to trigger CI/CD pipelines.

This integration helps automate testing and deployment for faster, safer code delivery.