r2.sh

#!/bin/bash

ENDPOINT_URL="https://<ACCOUNT_ID>.r2.cloudflarestorage.com"
CUSTOM_CDN_URL="https://<REPLACE_HERE>"

RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

show_usage() {
    echo -e "${BLUE}R2.sh${NC}"
    echo
    echo "Usage:"
    echo "  $0 <file_path> <bucket_name> <object_name>"
    echo
    echo "Arguments:"
    echo "  file_path    : Path to the file you want to upload"
    echo "  bucket_name  : Name of your R2 bucket"
    echo "  object_name  : Desired name for the object in the bucket"
    echo
    echo "Example:"
    echo "  $0 ./myfile.pdf my-bucket folder/myfile.pdf"
}

# Check if AWS CLI is installed
check_aws_cli() {
    if ! command -v aws &> /dev/null; then
        echo -e "${RED}Error: AWS CLI is not installed${NC}"
        echo "Please install AWS CLI first:"
        echo "  curl 'https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip' -o 'awscliv2.zip'"
        echo "  unzip awscliv2.zip"
        echo "  sudo ./aws/install"
        exit 1
    fi
}

validate_inputs() {
    if [ "$#" -lt 3 ]; then
        show_usage
        exit 1
    fi

    local file_path=$1
    local bucket_name=$2
    local object_name=$3

    if [ ! -f "$file_path" ]; then
        echo -e "${RED}Error: File '$file_path' does not exist${NC}"
        exit 1
    fi

    if [ ! -r "$file_path" ]; then
        echo -e "${RED}Error: File '$file_path' is not readable${NC}"
        exit 1
    fi

    if [[ ! $bucket_name =~ ^[a-z0-9][a-z0-9-]*[a-z0-9]$ ]]; then
        echo -e "${RED}Error: Invalid bucket name '$bucket_name'${NC}"
        echo "Bucket names must:"
        echo "- Contain only lowercase letters, numbers, and hyphens"
        echo "- Start and end with a letter or number"
        exit 1
    fi
}

calculate_sha256() {
    local file_path=$1
    sha256sum "$file_path" | awk '{ print $1 }'
}

main() {
    check_aws_cli
    validate_inputs "$@"

    local file_path=$1
    local bucket_name=$2
    local object_name=$3
    shift 3

    local file_size
    file_size=$(wc -c < "$file_path")
    
    local file_size_mb
    file_size_mb=$(bc <<< "scale=2; $file_size/1048576")

    local file_hash
    file_hash=$(calculate_sha256 "$file_path")

    echo -e "${BLUE}Starting upload:${NC}"
    echo "- File: $file_path"
    echo "- Size: ${file_size_mb}MB"
    echo "- Bucket: $bucket_name"
    echo "- Object: $object_name"
    echo "- SHA-256 Hash: $file_hash"
    echo

    if aws --endpoint-url "$ENDPOINT_URL" s3 cp "$file_path" "s3://$bucket_name/$object_name"; then
        echo -e "\n${GREEN}✓ Upload successful:${NC}"

        local encoded_object_name
        encoded_object_name=$(urlencode "$object_name")

        local object_url="$CUSTOM_CDN_URL/$encoded_object_name"
        echo "Object URL: $object_url"
    else
        echo -e "\n${RED}✗ Upload failed.${NC}"
        echo "Please check:"
        echo "- Your AWS credentials are correctly configured"
        echo "- You have proper permissions on the bucket"
        echo "- The bucket exists and is accessible"
        exit 1
    fi
}

main "$@"