Add create_torrent.sh
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create_torrent.sh
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200
create_torrent.sh
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#!/bin/bash
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# Configuration
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SOURCE_DIR="/mnt/zpool0_nfs/cios_www"
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DEST_DIR="/home/paulmataruso/TORRENT_BACKUP_GOLD"
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TORRENT_WATCH_DIR="/home/paulmataruso/TORRENT_WATCH"
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TRACKER_URL="http://tracker.dhitechnical.com:6969/announce"
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# Colors for output
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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NC='\033[0m' # No Color
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# Function to print colored output
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print_status() {
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echo -e "${GREEN}[INFO]${NC} $1"
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}
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print_warning() {
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echo -e "${YELLOW}[WARNING]${NC} $1"
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}
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print_error() {
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echo -e "${RED}[ERROR]${NC} $1"
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}
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print_header() {
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echo -e "${BLUE}================================${NC}"
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echo -e "${BLUE}$1${NC}"
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echo -e "${BLUE}================================${NC}"
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}
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# Check if transmission-create is installed
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check_dependencies() {
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if ! command -v transmission-create &> /dev/null; then
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print_error "transmission-create is not installed. Please install transmission-cli package."
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print_status "On Ubuntu/Debian: sudo apt-get install transmission-cli"
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print_status "On CentOS/RHEL: sudo yum install transmission-cli"
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print_status "On Arch: sudo pacman -S transmission-cli"
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exit 1
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fi
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}
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# Validate destination directories exist
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check_dest_dirs() {
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if [ ! -d "$DEST_DIR" ]; then
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print_error "Destination directory does not exist: $DEST_DIR"
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exit 1
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fi
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if [ ! -d "$TORRENT_WATCH_DIR" ]; then
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print_error "Torrent watch directory does not exist: $TORRENT_WATCH_DIR"
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exit 1
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fi
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}
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# Calculate optimal piece size based on folder size
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calculate_piece_size() {
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local folder_path="$1"
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local size_bytes=$(du -sb "$folder_path" | cut -f1)
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# Convert to MB for easier comparison
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local size_mb=$((size_bytes / 1024 / 1024))
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# Piece size mapping based on folder size
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# < 100 MB: 16 KB pieces
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# 100 MB - 1 GB: 32 KB pieces
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# 1 GB - 10 GB: 64 KB pieces
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# 10 GB - 100 GB: 128 KB pieces
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# > 100 GB: 256 KB pieces
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if [ $size_mb -lt 100 ]; then
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echo "16"
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elif [ $size_mb -lt 1024 ]; then
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echo "32"
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elif [ $size_mb -lt 10240 ]; then
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echo "64"
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elif [ $size_mb -lt 102400 ]; then
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echo "128"
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else
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echo "256"
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fi
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}
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# Format size for display
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format_size() {
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local size_bytes="$1"
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if [ $size_bytes -gt 1073741824 ]; then
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echo "$(($size_bytes / 1073741824)) GB"
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elif [ $size_bytes -gt 1048576 ]; then
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echo "$(($size_bytes / 1048576)) MB"
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elif [ $size_bytes -gt 1024 ]; then
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echo "$(($size_bytes / 1024)) KB"
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else
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echo "$size_bytes bytes"
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fi
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}
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# Create torrent file for a single folder
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create_torrent() {
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local folder_path="$1"
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local folder_name=$(basename "$folder_path")
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local torrent_file="$DEST_DIR/${folder_name}.torrent"
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# Calculate folder size and optimal piece size
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local size_bytes=$(du -sb "$folder_path" | cut -f1)
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local size_formatted=$(format_size $size_bytes)
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local piece_size=$(calculate_piece_size "$folder_path")
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print_status "Creating torrent for: $folder_name (Size: $size_formatted, Piece size: ${piece_size}KB)"
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# Create torrent file
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transmission-create \
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--tracker "$TRACKER_URL" \
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--outfile "$torrent_file" \
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--piece-size "$piece_size" \
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--comment "Created by torrent creation script - Piece size: ${piece_size}KB" \
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"$folder_path"
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if [ $? -eq 0 ]; then
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print_status "✓ Torrent created: $torrent_file"
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# Copy torrent file to watch directory
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local watch_torrent_file="$TORRENT_WATCH_DIR/${folder_name}.torrent"
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cp "$torrent_file" "$watch_torrent_file"
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chown 1000:1000 "$watch_torrent_file"
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print_status "✓ Torrent copied to watch directory: $watch_torrent_file"
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# Extract magnet link
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local magnet_link=$(transmission-show --magnet "$torrent_file")
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if [ $? -eq 0 ]; then
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local magnet_file="$DEST_DIR/${folder_name}.magnet"
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echo "$magnet_link" > "$magnet_file"
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print_status "✓ Magnet link saved: $magnet_file"
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else
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print_warning "Could not extract magnet link for: $folder_name"
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fi
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else
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print_error "Failed to create torrent for: $folder_name"
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fi
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}
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# Main function
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main() {
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print_header "Torrent Creation Script"
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# Check dependencies
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check_dependencies
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# Validate source directory
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if [ ! -d "$SOURCE_DIR" ]; then
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print_error "Source directory does not exist: $SOURCE_DIR"
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exit 1
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fi
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print_status "Source directory: $SOURCE_DIR"
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print_status "Destination directory: $DEST_DIR"
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print_status "Torrent watch directory: $TORRENT_WATCH_DIR"
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print_status "Tracker URL: $TRACKER_URL"
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# Validate destination directories
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check_dest_dirs
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# Get list of folders in source directory
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local folders=($(find "$SOURCE_DIR" -maxdepth 1 -type d -not -name "$(basename "$SOURCE_DIR")"))
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if [ ${#folders[@]} -eq 0 ]; then
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print_warning "No folders found in source directory"
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exit 0
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fi
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print_status "Found ${#folders[@]} folders to process"
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# Process each folder
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local count=0
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for folder in "${folders[@]}"; do
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count=$((count + 1))
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print_status "Processing folder $count of ${#folders[@]}: $(basename "$folder")"
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create_torrent "$folder"
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echo
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done
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print_header "Summary"
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print_status "Processed ${#folders[@]} folders"
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print_status "Torrent files saved to: $DEST_DIR"
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print_status "Torrent files copied to: $TORRENT_WATCH_DIR"
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print_status "Magnet files saved to: $DEST_DIR"
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# List created files
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echo
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print_status "Created files:"
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ls -la "$DEST_DIR"/*.torrent 2>/dev/null | wc -l | xargs echo " Torrent files in backup:"
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ls -la "$TORRENT_WATCH_DIR"/*.torrent 2>/dev/null | wc -l | xargs echo " Torrent files in watch:"
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ls -la "$DEST_DIR"/*.magnet 2>/dev/null | wc -l | xargs echo " Magnet files:"
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}
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# Run main function
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main "$@"
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