Working Directory, Staging Area & Local Repository

These are the three main areas involved when saving changes in Git.

1. Working Directory

The Working Directory is where you actually create, edit, or delete project files.

Example: You modify Program.cs.

Program.cs → Modified

Git sees the change, but it has not been prepared for commit yet.

2. Staging Area

The Staging Area is an intermediate area where you select the changes that should be included in the next commit.

git add Program.cs

Or stage all changes:

git add .

Think of it as:

"These are the changes I want in my next commit."

3. Local Repository

The Local Repository stores your committed changes and history on your computer.

git commit -m "Updated Program.cs"

The staged changes are now saved as a commit in the local repository.

How They Work Together

Working Directory
   │
   │ git add
   ↓
Staging Area
   │
   │ git commit
   ↓
Local Repository
   │
   │ git push
   ↓
Remote Repository
(GitHub / Azure Repos)

Important Commands

git status                  # Check file status
git add .                   # Working → Staging
git commit -m "message"     # Staging → Local Repository
git push origin main        # Local → Remote

Key Points

• Working Directory → Where we modify files.
• Staging Area → Changes selected for the next commit.
• Local Repository → Stores committed history locally.
• git add → stages changes.
• git commit → saves staged changes locally.
• git push → sends commits to remote.

Interview Answer

The Working Directory is where we modify project files. The Staging Area contains changes selected for the next commit. The Local Repository stores committed changes and version history on our machine. We use git add to stage changes and git commit to save them locally.