03 - Local Repository - GIT

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GIT

  • What is VCS (Version Control System) :
    • Version Control is a system that documents changes made to a file or a set of files.
    • It allows multiple users to manage multiple revisions of the same unit of information.
    • It is a snapshot of your project over time
  • Git is free and open-source Distributed Version Control Systems (DVCS) which records changes made to the files laying emphasis on Speed, Data Integrity, Distributed Non-linear (Branching) workflows
  • 1 - Download GIT for different OS
    • Redhat/Centos based OS
      • yum install git
    • Debian based OS
      • apt-get install git
    • Windows-based
      • https://git-scm.com/download/win
  • Install and Configure GIT in Centos
    • vagrant ssh
    • sudo su -
    • hostnamectl set-hostname git.unixcloudfusion.in
    • bash
    • vi /etc/hosts
    • 192.168.33.14  git.unixcloudfusion.in
    • yum install git -y      ** download git with dependencies
    • git --version
      • git version 1.8.3.1
    • git config --global user.name "Ali M"
    • git config --global user.email "alim@yahoo.com"
    • mkdir infra-automation
    • cd infra-automation
    • git init       **** Git repository in /root/infra-automation/.git/
    • ls -ltra .git/
  • 3 - How to use GIT
    • vi README
      •    This project is for Infra automation
         We are going to create a configuration for Infra automation
    • git status ** View status of the un-tracking file
    • git add README ** Push file to the staging area
    • git status ** View status of the staging file
    • git commit -m "Added the readme file the project"
    • vi README
                           Added the new Lines
    • git diff ** Show changes in the committed and modified file
    • git add README ** Push move new update in the staging area
    • git commit -a -m "Add feature 1 and 2"
    • touch file1 file2 file3
    • get add file1
    • rm file1
    • git rm file1 or git rm -f file1
    • git rm --cached file1 ** remove from git but not removed from the system
  • 4 - How to ignore files in the repository
    • touch web.jar
    • touch app.war
    • touch app.jpg
    • touch video.mp4
    • ** git only track text file
    • ** never put binaries in staging and git
    • vi .gitignore
# mention all files to ignore
*.war
*.jar
*.jpg
*.mp4
  • 5 - View all committed 
      • git log
      • git log --online
      • git log --online --decorate --graph
  • 6 -  Add and delete Tag
      • git tag --a v1 -m "We are going to release this project"
      • git tag
      • get show v1
      • ** delete tag
      • git tag -d vi or git tag --delete v1

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