git.md

Git

Submodule

1. Basic Commands Overview

Command	Description
git submodule add <repo_url>	Add a submodule to your project
git submodule init	Initialize your submodules
git submodule update	Fetch and checkout submodule commits
git submodule status	Check the status of your submodules
git submodule foreach <command>	Run a command in each submodule
git clone --recurse-submodules	Clone a repository and its submodules
git submodule sync	Sync submodule URLs when they change
git push	Push changes in the main project and submodule (if updated)

1. Add a Git Submodule

   git submodule add <remote_url> <destination_folder>
   git commit -m "Added the submodule to the project."
   git push

2. Pull a Git Submodule

   git submodule update --init --recursive

3. Update a Git Submodule

   git submodule update --remote --merge

4. Fetch new submodule commits

   $ cd <repository>/<submodule>
   $ git fetch
   
   $ git log --oneline origin/master -3
   
   93360a2 (origin/master, origin/HEAD) Second commit
   88db523 First commit
   43d0813 (HEAD -> master) Initial commit
   
   $ git checkout -q 93360a2
   
   $ cd <repository>
   $ git add .
   $ git commit -m "Added new commits from the submodule repository"
   $ git push

5. Remove Git submodules

   $ git submodule deinit <submodule>
   $ git rm <submodule>

Add remote repo

1. Add

   git remote add origin <remote_url>
   git branch -M main
   git push -u origin main

2. Use

   git remote add upstream <remote_url>
   git fetch upstream
   git rebase upstream/main
   git push origin

3. Check

   git remote -v

4. Remove

   git remote rm <remote_name>

Git LFS

Install package

sudo apt install git-lfs -y

Initialize

1. Initialize Git LFS in a repository

   git lfs install

2. Track large files

   git lfs track "*.psd"
   
   git add .gitattributes
   git commit -m "Track PSD files using Git LFS"

3. Adding large files to Git

   git add large-file.psd
   git commit -m "Added large PSD file"

4. Cloning a repository with Git LFS

   git clone https://github.com/username/repo.git
   cd repo
   
   # Pull down all LFS files
   git lfs pull

5. Fetching and Pulling large files

   git lfs fetch
   git pull

6. Checking status of LFS files

   git push origin main

7. Untracking files

   git lfs untrack "*.psd"

8. Fetching Recent Files

   git lfs fetch --recent
   git lfs fetch --recent <n> # Fetches LFS objects for commits made in the last n days.
   git lfs fetch --recent --recent-refs-days <n>
   git lfs fetch --recent --recent-commits-days 7  # fetches commits from the last 7 days
   
   # Fetch Specific LFS Files by Pattern (-I and -X)
   # -I Option (Include specific files):
   git lfs fetch -I "path/to/file.txt"
   git lfs fetch -I "*.jpg"
   # -X Option (Exclude specific files):
   git lfs fetch -X "*.png"
   # Combined Example (-I and -X):
   git lfs fetch -I "*.jpg" -X "*.large.jpg"