added git automation script

Author: PIYUSH-MISHRA-00

github.sh

@@ -0,0 +1,136 @@
+#! /bin/bash
+
+### Git automation script for automating git clone, push and pull ###
+### Created by PIYUSH-MISHRA-00 ###
+
+while :
+do
+echo
+echo "Which Git operation you want to perform ?"
+echo
+echo "GitHub username: $username"
+echo "Local repository name: $local_repo"
+echo "Remote repository name: $remote"
+echo "The default branch you want to work with: $branch"
+echo "GPG key value: $GPG"
+echo
+echo -e "\t(0) Configure (configures the script for continuous uses)"
+echo -e "\t(1) Clone"
+echo -e "\t(2) Pull"
+echo -e "\t(3) Push"
+echo -e "\t(4) Exit"
+echo -n "Enter your choice [0-4]: "
+
+read choice
+
+case $choice in
+
+ 0) echo "Enter the values for future use of the script..."
+    echo
+    echo "Enter GitHub username: "
+    read username
+    export username
+    echo "Your username is: $username"
+    echo
+    echo "Local repository name: "
+    read local_repo
+    export local_repo
+    echo "Your local repository name is: $local_repo"
+    echo 
+    echo "Remote repository name: "
+    read remote
+    export remote
+    echo "Remote repository name is: $remote"
+    echo
+    echo "The default branch you want to work with: "
+    read branch
+    export branch
+    echo "The default branch you want to work with: $branch"
+    echo
+    echo "GPG key value is: $GPG"
+    echo
+    echo "GPG key id for signed commits(leave blank if you don't want signed commits)"
+    read GPG
+    export GPG
+    echo "GPG key value is: $GPG"
+    echo
+   ;;
+
+ 1) echo "Cloning from GitHub"
+    echo
+    echo "Enter the repository https url: "
+    read clone_url
+    git clone $echo $clone_url;;
+
+ 2) echo "Pulling from GitHub"
+    echo
+    echo "Enter the repository https url: "
+    read pull_url
+    echo
+    echo $pull_url
+    echo
+    while :
+    do
+    echo "Which type of Git Pull you want ?"
+    echo -e "\t(1) Merge (the default strategy)"
+    echo -e "\t(2) Rebase"
+    echo -e "\t(3) Fast-forward only"
+    echo -e "\t(4) Return to main menu"
+    echo -n "Enter your choice [1-4]: "
+    read pull_choice
+    case $pull_choice in
+     1) 
+     git config pull.rebase false 
+     git pull $echo "$pull_url";;
+     2) 
+     git config pull.rebase true 
+     git pull $echo "$pull_url";;
+     3) 
+     git config pull.ff only 
+     git pull $echo "$pull_url";;
+     4)
+     break
+     ;;
+        *) 
+        echo "Invalid operation"
+        ;;
+    esac
+    done
+    ;;
+
+ 3) echo "Pushing to GitHub" 
+    declare -A map
+
+    map[$echo"$local_repo"] = $echo"$remote"
+
+    git config --global user.name $echo"$username" 
+    git config --global user.signingkey $echo$GPG 
+    git init
+    git add .
+    echo "Enter Commit message: "
+    read message
+    git commit -m $echo "$message"
+    echo "Enter Tag name: (Press enter if you want to skip the tag name)"
+    read tag
+    echo "Enter Tag message: (Press enter if you want to skip the tag message)"
+    read tag_message
+    git tag -a $echo$tag -m "$echo$tag_message"
+    git tag -n
+
+    for i in "${!map[@]}"
+      do
+      git remote add $i https://github.com/$echo$username/${map[$i]}.git 
+      git push -u $i $echo$branch 
+      done
+
+      git push;;
+
+ 4) echo "Quitting..."
+    exit
+    ;;
+
+ *) echo "Invalid operation"
+    ;;
+
+ esac
+ done