git add, commit

Using git in working directory

• When you enter the command to create a new Git repository, a Git repository is created based on the current directory.

  git init

Creating versions by adding and committing

• Stage files to be committed by moving them from working directory to staging area

  git add filename

• Stage multiple files

  git add filename1 filename2

• Stage all files

  git add .

• If you want to know about currently changed files and staged files, enter the command below

  git status

• If you want to remove files from staging area, enter the command below

  git restore --staged filename

• Move from staging area to repository

  git commit -m 'write commit message'

• If you want to see commit history at a glance, enter the command below

  # Show as text
  # After entering, if Vim editor opens, you can scroll up/down with j, k keys, and exit with q key
  git log

  # Show as graph
  # After entering, if Vim editor opens, you can scroll up/down with j, k keys, and exit with q key
  git log --graph

• Cancel commit

    # [Method 1] Cancel commit and preserve files in staged state in working directory
    git reset --soft HEAD^
  
    # [Method 2] Cancel commit and preserve files in unstaged state in working directory
    # Default option
    git reset --mixed HEAD^
    # Same as above
    git reset HEAD^
    # Cancel last 2 commits
    git reset HEAD~2
  
    # [Method 3] Cancel commit and delete files from working directory in unstaged state
    git reset --hard HEAD^
    git-cancel.html