silent install smartmontools on mac

#!/bin/bash
set -x

# Define variables
SMART_PATH="/usr/local/sbin"
SMARTCTL_PATH="$SMART_PATH/smartctl"
SMARTUPDATEDB_PATH="$SMART_PATH/update-smart-drivedb"
VERSION="7.4-1"
BASE_URL="https://sourceforge.net/projects/smartmontools/files/smartmontools/7.4"
DMG_FILE="smartmontools-${VERSION}.dmg"
MD5_FILE="smartmontools-${VERSION}.dmg.md5"
ASC_FILE="smartmontools-${VERSION}.dmg.asc"
GPG_KEY="0C9577FD2C4CFCB4B9A599640A30812EFF3AEFF5"
KEYSERVER="hkps://keys.openpgp.org"
KEY_URL="https://www.smartmontools.org/browser/trunk/www/SmartmontoolsSigningKey_2021.txt?format=txt"
KEY_DIR=$(dirname "$0")
GPG_KEYFILE="$KEY_DIR/smartmontools_key.txt"
DRIVE_DB="https://svn.code.sf.net/p/smartmontools/code/branches/RELEASE_7_3_DRIVEDB/smartmontools/drivedb.h"

# Ensure running as root
if [ "$(whoami)" != "root" ]; then
    echo "Error: This script must be run with superuser privileges."
    exit 1
fi

# Check if smartmontools is already installed
if command -v $SMARTCTL_PATH &> /dev/null; then
    # Define the version pattern
    PATTERN="sf-$VERSION"
    echo "Current smartmontools version: $VERSION"
    echo "Expected pattern: $PATTERN"

    # Extract the installed version number
    SMARTCTL_VERSION=$($SMARTCTL_PATH --version | head -1 | awk -F'[(|)]' '{print $2}')

    # Check if the version matches or indicates a local build
    if [[ $SMARTCTL_VERSION == *"local build"* ]]; then
        echo "Version indicates a local (Homebrew) installation."
        echo "Please uninstall using the appropriate package manager."
        exit 1
    elif [[ $SMARTCTL_VERSION == $PATTERN ]]; then
        echo "Installed version matches the target version. Updating drive database only."
        # Update drive database
        if ! $SMARTUPDATEDB_PATH; then
            echo "Failed to update drive database directly. Attempting to download updated version..."
            if ! curl -sSL "$DRIVE_DB" -o "/usr/local/share/smartmontools/drivedb.h"; then
                echo "Error: Failed to download updated drive database."
                exit 1
            fi
        fi
        echo "Drive database updated successfully."
        exit 0
    else
        echo "Installed version does not match the expected pattern and is not a Homebrew installation."
    fi
fi

# Function definitions for logging errors, importing GPG signatures, downloading files, and verifying downloads
log_error() {
    echo "$1" | logger -t smartmontools_installation_error
    exit 500
}

import_gpg_signature() {
    echo "Importing GPG signature..."
    curl -sSL "$1" -o "$GPG_KEYFILE" && gpg --import "$GPG_KEYFILE" || log_error "Failed to import GPG key."
}

download_file() {
    echo "Downloading $2..."
    curl -L "$1" -o "$2" || log_error "Failed to download $2."
}

verify_downloads() {
    # Verify MD5 checksum
    echo "Verifying MD5 checksum for $DMG_FILE..."
    local md5_check=$(md5 -q "$DMG_FILE")
    local expected_md5=$(cut -d ' ' -f1 "$MD5_FILE")
    if [ "$md5_check" != "$expected_md5" ]; then
        log_error "Checksum verification failed for $DMG_FILE."
    fi
    echo "MD5 checksum verified successfully."

    # Verify GPG signature
    if command -v gpg &> /dev/null; then
        echo "Verifying GPG signature for $DMG_FILE..."
        gpg --keyring "$GPG_KEYFILE" --verify "$ASC_FILE" "$DMG_FILE" &> /dev/null || log_error "GPG signature verification failed."
        echo "GPG signature verified successfully."
    fi
}


















# Main script
if [ -f "$DMG_FILE" ] && [ -f "$MD5_FILE" ] && [ -f "$ASC_FILE" ]; then
    # Check checksum and key before downloading
    verify_downloads
else
    # Download files
    download_file "${BASE_URL}/${DMG_FILE}/download" "$DMG_FILE"
    download_file "${BASE_URL}/${MD5_FILE}/download" "$MD5_FILE"
    download_file "${BASE_URL}/${ASC_FILE}/download" "$ASC_FILE"
    verify_downloads
fi

# Installation steps
# Attempt to attach the DMG file
if hdiutil attach "$DMG_FILE"; then
    echo "DMG file attached successfully"
else
    log_error "Failed to attach DMG file: $DMG_FILE"
fi

# Attempt to install the package
if installer -allowUntrusted -verbose -pkg "/Volumes/smartmontools/smartmontools-${VERSION}.pkg" -target /; then
    echo "Installation successful"
    purge 
    sleep 5
else
    log_error "Installation failed"
    hdiutil detach "/Volumes/smartmontools"
    sleep 5
fi

# Attempt to detach the DMG file
if hdiutil detach "/Volumes/smartmontools"; then
    echo "DMG file detached successfully"
else
    log_error "Failed to detach DMG file: $DMG_FILE"
fi

# Check if smartmontools is installed
if ! command -v smartctl &> /dev/null; then
    echo "Error: smartmontools is not installed. Please install it using Homebrew or another package manager."
    exit 1
fi

# Check if update-smart-drivedb is available
if ! command -v update-smart-drivedb &> /dev/null; then
    echo "Error: update-smart-drivedb is not available. Make sure smartmontools is properly installed."
    exit 1
fi

# Update drive database
echo "Updating smartmontools drive database..."
/usr/local/sbin/update-smart-drivedb 

# Check if the update was successful
if [ $? -ne 0 ]; then
    echo "Error: Failed to update smartmontools drive database."
    # Download the updated drivedb.h file
    echo "Downloading updated drivedb.h file..."
    curl -sSL "https://www.smartmontools.org/export/5597/branches/RELEASE_7_3_DRIVEDB/smartmontools/drivedb.h" -o "/usr/local/share/smartmontools/drivedb.h"

        # Check if the download was successful
        if [ $? -ne 0 ]; then
        echo "Error: Failed to download the updated drivedb.h file."
        exit 1
fi

echo "smartmontools drive database updated successfully."
fi

# Further instructions as necessary
echo "Run the test"
/usr/local/sbin/smartctl -t long /dev/disk0

echo "Get information on your drive"
/usr/local/sbin/smartctl -a /dev/disk0