install.sh

#!/bin/bash
#
# Devstrap installer script
# Usage: curl -fsSL https://raw.githubusercontent.com/codoworks/devstrap/main/install.sh | bash
#

set -e

REPO="codoworks/devstrap"
BINARY_NAME="devstrap"
INSTALL_DIR="${INSTALL_DIR:-/usr/local/bin}"

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

info() {
    echo -e "${GREEN}[INFO]${NC} $1"
}

warn() {
    echo -e "${YELLOW}[WARN]${NC} $1"
}

error() {
    echo -e "${RED}[ERROR]${NC} $1"
    exit 1
}

# Detect OS
detect_os() {
    case "$(uname -s)" in
        Darwin)
            echo "darwin"
            ;;
        Linux)
            echo "linux"
            ;;
        *)
            error "Unsupported operating system: $(uname -s)"
            ;;
    esac
}

# Detect architecture
detect_arch() {
    case "$(uname -m)" in
        x86_64|amd64)
            echo "amd64"
            ;;
        arm64|aarch64)
            echo "arm64"
            ;;
        *)
            error "Unsupported architecture: $(uname -m)"
            ;;
    esac
}

# Get the latest release version from GitHub
get_latest_version() {
    local latest_url="https://api.github.com/repos/${REPO}/releases/latest"
    local version

    if command -v curl &> /dev/null; then
        version=$(curl -fsSL "$latest_url" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/')
    elif command -v wget &> /dev/null; then
        version=$(wget -qO- "$latest_url" | grep '"tag_name"' | sed -E 's/.*"([^"]+)".*/\1/')
    else
        error "curl or wget is required to download devstrap"
    fi

    if [ -z "$version" ]; then
        error "Failed to get latest version from GitHub"
    fi

    echo "$version"
}

# Download and install the binary
install_binary() {
    local os="$1"
    local arch="$2"
    local version="$3"

    # Remove 'v' prefix if present for filename
    local version_num="${version#v}"

    local filename="${BINARY_NAME}_${version_num}_${os}_${arch}.tar.gz"
    local download_url="https://github.com/${REPO}/releases/download/${version}/${filename}"

    info "Downloading ${BINARY_NAME} ${version} for ${os}/${arch}..."

    local tmp_dir
    tmp_dir=$(mktemp -d)
    trap "rm -rf ${tmp_dir}" EXIT

    if command -v curl &> /dev/null; then
        curl -fsSL "$download_url" -o "${tmp_dir}/${filename}" || error "Failed to download from ${download_url}"
    else
        wget -q "$download_url" -O "${tmp_dir}/${filename}" || error "Failed to download from ${download_url}"
    fi

    info "Extracting..."
    tar -xzf "${tmp_dir}/${filename}" -C "${tmp_dir}"

    # Check if we need sudo
    if [ -w "$INSTALL_DIR" ]; then
        mv "${tmp_dir}/${BINARY_NAME}" "${INSTALL_DIR}/${BINARY_NAME}"
        chmod +x "${INSTALL_DIR}/${BINARY_NAME}"
    else
        info "Installing to ${INSTALL_DIR} (requires sudo)..."
        sudo mv "${tmp_dir}/${BINARY_NAME}" "${INSTALL_DIR}/${BINARY_NAME}"
        sudo chmod +x "${INSTALL_DIR}/${BINARY_NAME}"
    fi
}

# Verify installation
verify_installation() {
    if command -v "$BINARY_NAME" &> /dev/null; then
        info "Successfully installed ${BINARY_NAME}!"
        echo ""
        "$BINARY_NAME" --help
    else
        warn "${BINARY_NAME} was installed to ${INSTALL_DIR}/${BINARY_NAME}"
        warn "Make sure ${INSTALL_DIR} is in your PATH"
    fi
}

main() {
    echo ""
    echo "  Devstrap Installer"
    echo "  =================="
    echo ""

    local os
    local arch
    local version

    os=$(detect_os)
    arch=$(detect_arch)
    version=$(get_latest_version)

    info "Detected: ${os}/${arch}"
    info "Latest version: ${version}"

    install_binary "$os" "$arch" "$version"
    verify_installation

    echo ""
    info "Get started with: devstrap init"
    echo ""
}

main "$@"