setup_cron.sh

#!/bin/bash

# Script to set up cron job for automatic repository mirroring
# This will run the mirror script daily at midnight (00:00)

set -e

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
MIRROR_SCRIPT="$SCRIPT_DIR/mirror_repos.sh"
CRON_JOB="0 0 * * * $MIRROR_SCRIPT"

# Colors for output
GREEN='\033[0;32m'
YELLOW='\033[1;33m'
RED='\033[0;31m'
NC='\033[0m' # No Color

echo -e "${YELLOW}========================================${NC}"
echo -e "${YELLOW}GitHub Repository Mirror - Cron Setup${NC}"
echo -e "${YELLOW}========================================${NC}"
echo ""

# Check if mirror script exists and is executable
if [ ! -f "$MIRROR_SCRIPT" ]; then
    echo -e "${RED}Error: mirror_repos.sh not found at $MIRROR_SCRIPT${NC}"
    exit 1
fi

if [ ! -x "$MIRROR_SCRIPT" ]; then
    echo -e "${YELLOW}Making mirror_repos.sh executable...${NC}"
    chmod +x "$MIRROR_SCRIPT"
fi

# Check if cron job already exists
if crontab -l 2>/dev/null | grep -F "$MIRROR_SCRIPT" >/dev/null 2>&1; then
    echo -e "${YELLOW}Cron job already exists for mirror_repos.sh${NC}"
    echo ""
    echo "Current cron entry:"
    crontab -l | grep -F "$MIRROR_SCRIPT"
    echo ""
    read -p "Do you want to remove and re-add it? (y/n): " -n 1 -r
    echo
    if [[ $REPLY =~ ^[Yy]$ ]]; then
        # Remove existing cron job
        crontab -l | grep -v -F "$MIRROR_SCRIPT" | crontab -
        echo -e "${GREEN}Removed existing cron job${NC}"
    else
        echo "Keeping existing cron job. Exiting."
        exit 0
    fi
fi

# Add new cron job
(crontab -l 2>/dev/null || true; echo "$CRON_JOB") | crontab -

echo -e "${GREEN}✓ Cron job added successfully!${NC}"
echo ""
echo "Cron schedule: Daily at midnight (00:00)"
echo "Command: $MIRROR_SCRIPT"
echo ""
echo -e "${YELLOW}Current crontab:${NC}"
crontab -l
echo ""
echo -e "${GREEN}========================================${NC}"
echo -e "${GREEN}Setup complete!${NC}"
echo -e "${GREEN}========================================${NC}"
echo ""
echo "The backup script will now run automatically every day at midnight."
echo "You can also run it manually at any time: $MIRROR_SCRIPT"
echo ""
echo "To view cron logs, check your system logs:"
echo "  - Ubuntu/Debian: grep CRON /var/log/syslog"
echo "  - Other systems: journalctl -u cron"
echo ""
echo "To remove the cron job later, run:"
echo "  crontab -e"
echo "  (and delete the line containing mirror_repos.sh)"