Script to use for tutorial purposes on Git

inspect-git.sh

#!/bin/bash
# A script to inspect the current Git repository status and display relevant information.

file_name="files-in-git"
old_file="${file_name}_old.txt"
new_file="${file_name}.txt"

function generate_git_file_list() {
    ls -1 -R .git > $1
}

if [ -f "$new_file" ] && [ ! -f "$old_file" ]; then
    mv "$new_file" "$old_file"
    echo "File renamed from $new_file to $old_file"
elif [ ! -f "$new_file" ]; then
    echo "File $new_file does not exist"
    generate_git_file_list "$old_file"
fi

generate_git_file_list "$new_file"

git diff --no-index "$old_file" "$new_file"

Inspired on John Britton's presentation at https://www.youtube.com/watch?v=lG90LZotrpo&t=7s, entitled
Git Internals by John Britton of GitHub - CS50 Tech Talk