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using System;
using System.Diagnostics.CodeAnalysis;
using System.IO;
using System.IO.Compression;
using System.Reflection;
using System.Threading;
namespace StardewModdingApi.Installer
{
/// <summary>The entry point for SMAPI's install and uninstall console app.</summary>
internal class Program
{
/*********
** Fields
*********/
/// <summary>The absolute path of the installer folder.</summary>
[SuppressMessage("ReSharper", "AssignNullToNotNullAttribute", Justification = "The assembly location is never null in this context.")]
private static readonly string InstallerPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)!;
/// <summary>The absolute path of the folder containing the unzipped installer files.</summary>
private static readonly string ExtractedBundlePath = Path.Combine(Path.GetTempPath(), $"SMAPI-installer-{Guid.NewGuid():N}");
/// <summary>The absolute path for referenced assemblies.</summary>
private static readonly string InternalFilesPath = Path.Combine(Program.ExtractedBundlePath, "smapi-internal");
/*********
** Public methods
*********/
/// <summary>Run the install or uninstall script.</summary>
/// <param name="args">The command line arguments.</param>
public static void Main(string[] args)
{
// find install bundle
FileInfo zipFile = new(Path.Combine(Program.InstallerPath, "install.dat"));
if (!zipFile.Exists)
{
Console.WriteLine($"Oops! Some of the installer files are missing; try re-downloading the installer. (Missing file: {zipFile.FullName})");
Console.ReadLine();
return;
}
// unzip bundle into temp folder
DirectoryInfo bundleDir = new(Program.ExtractedBundlePath);
Console.WriteLine("Extracting install files...");
ZipFile.ExtractToDirectory(zipFile.FullName, bundleDir.FullName);
// set up assembly resolution
AppDomain.CurrentDomain.AssemblyResolve += Program.CurrentDomain_AssemblyResolve;
// launch installer
var installer = new InteractiveInstaller(bundleDir.FullName);
try
{
installer.Run(args);
}
catch (Exception ex)
{
Program.PrintErrorAndExit($"The installer failed with an unexpected exception.\nIf you need help fixing this error, see https://smapi.io/help\n\n{ex}");
}
}
/*********
** Private methods
*********/
/// <summary>Method called when assembly resolution fails, which may return a manually resolved assembly.</summary>
/// <param name="sender">The event sender.</param>
/// <param name="e">The event arguments.</param>
private static Assembly? CurrentDomain_AssemblyResolve(object? sender, ResolveEventArgs e)
{
try
{
AssemblyName name = new(e.Name);
foreach (FileInfo dll in new DirectoryInfo(Program.InternalFilesPath).EnumerateFiles("*.dll"))
{
if (name.Name != null && name.Name.Equals(AssemblyName.GetAssemblyName(dll.FullName).Name, StringComparison.OrdinalIgnoreCase))
return Assembly.LoadFrom(dll.FullName);
}
return null;
}
catch (Exception ex)
{
Console.WriteLine($"Error resolving assembly: {ex}");
return null;
}
}
/// <summary>Write an error directly to the console and exit.</summary>
/// <param name="message">The error message to display.</param>
private static void PrintErrorAndExit(string message)
{
Console.ForegroundColor = ConsoleColor.Red;
Console.WriteLine(message);
Console.ResetColor();
Console.WriteLine("Game has ended. Press any key to exit.");
Thread.Sleep(100);
Console.ReadKey();
Environment.Exit(0);
}
}
}
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