My simple manager for Termux of handing simple mundane tasks

info.md

My simple manager for Termux of handing simple mundane tasks

Feel free to use it for your self,

Features: Snapshot Maker, Restore Snaps, Login, Format Install

You can change debiab to what ever.

Requires:

• Termux from F-Droid
• proot-distro

Install Debian proot script: https://gist.github.com/cyberofficial/ff3ba83361f1a0f12b954f0706028a2c

Manager.sh

#!/bin/bash

SNAPSHOT_SUFFIX="_snapshot.tar"

main_menu() {
  while true; do
    echo ""
    echo "== Debian Manager =="
    echo " 1) Snapshot (Backup)"
    echo " 2) Restore"
    echo " 3) Login"
    echo " 4) Danger Zone"
    echo " 0) Exit"
    read -rp "Select an option: " main_choice

    case "$main_choice" in
      1) snapshot_menu ;;
      2) restore_menu ;;
      3) login_menu ;;
      4) danger_menu ;;
      0) echo "Goodbye."; exit 0 ;;
      *) echo "Invalid option." ;;
    esac
  done
}

snapshot_menu() {
  FILE="$(date +%b%d%Y%H%M%S)${SNAPSHOT_SUFFIX}"
  NOTEFILE="${FILE%.tar}.txt"

  echo "Snapshot filename will be: $FILE"

  while true; do
    echo "Enter a note for this snapshot (optional):"
    read -r note
    echo ""
    echo "Snapshot preview:"
    echo "Filename: $FILE"
    echo "Note    : $note"
    echo ""
    echo "Proceed?"
    select confirm in "Yes, make snapshot" "Redo note" "Cancel"; do
      case "$confirm" in
        "Yes, make snapshot")
          echo "Creating snapshot..."
          proot-distro backup debian --output "$FILE"
          echo "$note" > "$NOTEFILE"
          echo "Snapshot saved as $FILE"
          echo "Note saved to $NOTEFILE"
          return
          ;;
        "Redo note") break ;;
        "Cancel") echo "Snapshot canceled."; return ;;
        *) echo "Invalid option." ;;
      esac
    done
  done
}

restore_menu() {
  echo "Available snapshots:"
  mapfile -t files < <(ls *"$SNAPSHOT_SUFFIX" 2>/dev/null)

  if [[ ${#files[@]} -eq 0 ]]; then
    echo "No snapshots found."
    return
  fi

  echo " 0) Cancel"
  for i in "${!files[@]}"; do
    file="${files[$i]}"
    notefile="${file%.tar}.txt"
    if [[ -f "$notefile" ]]; then
      note=$(<"$notefile")
    else
      note="(No note)"
    fi
    printf " %d) %s  -  %s\n" "$((i + 1))" "$file" "$note"
  done

  read -rp "Enter the number of the snapshot to restore: " choice

  if [[ "$choice" == "0" ]]; then
    echo "Restore canceled."
    return
  fi

  index=$((choice - 1))
  if [[ $index -ge 0 && $index -lt ${#files[@]} ]]; then
    echo "Restoring from ${files[$index]}"
    proot-distro restore "${files[$index]}"
  else
    echo "Invalid choice."
  fi
}

login_menu() {
  echo "Login to Debian:"
  select opt in "Login as root" "Login as specific user" "Cancel"; do
    case "$opt" in
      "Login as root")
        echo "Logging in as root..."
        proot-distro login debian
        return
        ;;
      "Login as specific user")
        while true; do
          read -rp "Enter username (or leave blank to cancel): " username
          if [[ -z "$username" ]]; then
            echo "Cancelled."
            return
          fi
          echo "You entered: $username"
          read -rp "Proceed with login as '$username'? [y/N]: " confirm
          case "$confirm" in
            [yY][eE][sS]|[yY])
              echo "Logging in as user '$username'..."
              proot-distro login debian --user "$username"
              return
              ;;
            [nN][oO]|[nN]|"") echo "Let's try again." ;;
            *) echo "Invalid input. Please answer y or n." ;;
          esac
        done
        ;;
      "Cancel") echo "Login canceled."; return ;;
      *) echo "Invalid option." ;;
    esac
  done
}

danger_menu() {
  echo ""
  echo "!! DANGER ZONE !!"
  echo " 1) Factory Reset Debian (Restore from freshdebian.tar)"
  echo " 0) Cancel"
  read -rp "Select an option: " danger_choice

  case "$danger_choice" in
    1)
      if [[ ! -f "freshdebian.tar" ]]; then
        echo "Error: freshdebian.tar not found in current directory."
        return
      fi

      echo "Are you absolutely sure you want to restore Debian from freshdebian.tar?"
      read -rp "Type YES to continue: " confirm1
      if [[ "$confirm1" != "YES" ]]; then
        echo "Aborted."
        return
      fi

      read -rp "This will overwrite your current Debian environment. Type 'DELETE' to confirm again: " confirm2
      if [[ "$confirm2" != "DELETE" ]]; then
        echo "Aborted."
        return
      fi

      code=$(( RANDOM % 9000 + 1000 ))
      echo "Final step: To confirm, type the following number: $code"
      read -rp "Enter number: " usercode

      if [[ "$usercode" == "$code" ]]; then
        # Take a snapshot before resetting
        FILE="$(date +%b%d%Y%H%M%S)${SNAPSHOT_SUFFIX}"
        NOTEFILE="${FILE%.tar}.txt"
        echo "Creating automatic snapshot: $FILE"
        proot-distro backup debian --output "$FILE"
        echo "Before factory reset" > "$NOTEFILE"
        echo "Snapshot saved as $FILE"
        echo "Note saved to $NOTEFILE"

        # Proceed with restore
        echo "Restoring Debian from freshdebian.tar..."
        proot-distro restore freshdebian.tar
        echo "Debian has been reset to the fresh image."
      else
        echo "Incorrect code. Aborted."
      fi
      ;;
    0)
      echo "Canceled."
      ;;
    *)
      echo "Invalid option."
      ;;
  esac
}

main_menu