01 - Implement APIs for git operations

[bakayu]

Current Behavior:
NONE

Desired Behavior:
Write APIs for all basic git operations:

1. Repository Setup & Configuration

   • git init — Initialize a new Git repository.
   • git clone — Clone an existing repository.

2. File Status & Inspection

   • git status — Show the working directory and staging area status.
   • git log — View commit history.
   • git diff — Show changes between commits, branches, or working directory and index.
   • git show — Display information about a specific commit.

3. Staging & Committing

   • git add — Stage changes for the next commit.
   • git reset — Unstage a file.
   • git commit -m "message" — Commit staged changes with a message.
   • git commit --amend — Modify the most recent commit.

4. Branching & Tagging

   • git branch — List, create, or delete branches.
   • git checkout / git switch — Switch branches.
   • git merge — Merge another branch into the current one.
   • git tag — List, create, or delete tags.

5. Remote Repositories

   • git remote — Manage set of tracked repositories.
   • git fetch — Download objects and refs from another repository.
   • git pull — Fetch and merge changes from a remote repository.
   • git push — Upload local commits to a remote repository.

6. File & History Management

   • git rm — Remove files from the working directory and staging area.
   • git mv — Move or rename a file.
   • git restore — Restore file contents from a commit or discard changes.
   • git revert — Create a new commit that undoes changes from a previous commit.
   • git stash — Temporarily save changes that are not ready to be committed.

7. Viewing and Navigating

   • git ls-files — Show information about files in the index and working tree.
   • git blame — Show what revision and author last modified each line of a file.