Notes for git amd github

• Use for code changes, who make code changes, and coding collaborations.
• Git is a popular version control system (VCS), created by Linus Torvalds and been maintained by Junio Hamano.

• Development Branch

• Main Branch

• Release Branch

• Hotfix Branch

• Fork Branch

• git fetch

• git rm

• git stash

• git diff

• git revert

• git mv

• git show

• git rebase

• git help

• git init

• Will initialized a local repository in current directory.

git init

• git config

• Will setup the username and email throughout the whole machine. check how to setup git below.

• git add

• Will moved the files in youre working area into staging area.

git add .

• git status

• Will check if you have unstaged files and uncommited files.

git status

• git restore

• Will restore modified files into the last commit version of the file.

git restore .

• git commit

• Will moved the staged files into local repository to be saved permanently.

git commit -m <commitMessage> 

• git log

• Will see all the commit history

git log

• git clone

• Will clone a public repository in your local machine literally just downloading a project from github.

git clone <gitHubLink> 

• git push

• Will saved all the files in youre local repo into remote repo.

git push origin <remoteRepoDefaultBranchName>

• git pull

• Will pull the latest changes of code from remote repo into your local repo.

git pull origin <remoteRepoDefaultBranchName>

• git branch will list all available branch in your local repo

git branch

• git checkout

• Will switch into another branch.

git checkout <branchName>

• git merge

• Will merge the specified branch with the current branch

git merge <otherBranchToBeMergeInCurrentBranch>

• git remote

• Will connect to a remote repository

git remote add origin <gitHubLink> 

• Is a system that records changes to a file or set of files overtime. So that you can recall specific version later.

• It is a repository.

• It is the largest host of source code in the world.

• It is used to store/ maintain the source code of the project.

• Git Server Tools:

• GitHub(✅)

• BitBucket

• GitLab

• GitBlit

• Used to access the git server tools

• Can be dowloaded in [https://git-scm.com/download/win]

• Git Client Tools:

• Git Bash(✅)

• Git GUI

• Git CMD

• Github Desktop

• Working area: It is you're local project that the developer is working on.

• Stage area: This will be the bridge to your working area to local repository. Means that the files in staging area are candidate to be saved in local repository.

• Local Repository: Now that youre files is in local repository all files in here are candidate for moving into remote repository which is the git server like github.

• Install git from link above(Next, next no other config while installing)
• Open git bash(Anywhere directory in your machine)
• run this command

git config --global user.name <yourGithubUsername>

git config --global user.email <yourRegisteredEmailInGithub>

• Add the newly created in stage area by executing this command.

git add.

• Commit the staged files to be saved in local repository by executing this command.

git commit -m <commitMessage>

• Push the files in your local repository in remote repository.

git push origin <remoteRepoDefaultBranchName>

git branch --abort

• Just replace the .java inside " "

git ls-files | grep "\.java$" | xargs wc -l

git checkout <commitHash>

git branch -d <branchNameYouWantToDelete>

git checkout -b <branchName>

git pull origin <branchName> --allow-unrelated-histories

• Create Personal Access Token on GitHub From your GitHub account, go to Settings → Developer Settings → Personal Access Token → Tokens (classic) → Generate New Token (Classic) → Fillup the form (Check everything) → click Generate token → Copy the generated Token, it will be something like ghp_sFhFsSHhTzMDreGRLjmks4Tzuzgthdvfsrta.

$ git config credential.helper store
$ git push https://github.com/repo.git

Username for 'https://github.com': <USERNAME>
Password for 'https://[email protected]': <Personal Access Token You Created Above>

• This command contains git add . | git commit -m "Message" | git push origin main

git config --global alias.all '!f() { git add . && git commit -m "$1" && git push origin "$2" && git status; }; f'

• Initialize your repo with steroids (Only if you created the repo in github)

git config --global alias.start '!f() { git add . && git commit -m "$1" && git branch -M main && git remote add origin "$2" && git pull origin main --rebase && git push origin main; }; f'

• To use the command

git all "your commit message" your-branch-name

• Git submodule