VCST-1438: Fix 32/64 bit conflict when copying DLL files

VirtoCommerce.Platform.sln.DotSettings

@@ -1,6 +1,8 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=UI/@EntryIndexedValue">UI</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/PredefinedNamingRules/=PrivateStaticReadonly/@EntryIndexedValue">&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;</s:String>
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/UserRules/=15b5b1f1_002D457c_002D4ca6_002Db278_002D5615aedc07d3/@EntryIndexedValue">&lt;Policy&gt;&lt;Descriptor Staticness="Static" AccessRightKinds="Private" Description="Static readonly fields (private)"&gt;&lt;ElementKinds&gt;&lt;Kind Name="READONLY_FIELD" /&gt;&lt;/ElementKinds&gt;&lt;/Descriptor&gt;&lt;Policy Inspect="True" Prefix="_" Suffix="" Style="aaBb" /&gt;&lt;/Policy&gt;</s:String>
+	<s:Boolean x:Key="/Default/Environment/SettingsMigration/IsMigratorApplied/=JetBrains_002EReSharper_002EPsi_002ECSharp_002ECodeStyle_002ESettingsUpgrade_002EPredefinedNamingRulesToUserRulesUpgrade/@EntryIndexedValue">True</s:Boolean>
   <s:Boolean x:Key="/Default/UserDictionary/Words/=auditable/@EntryIndexedValue">True</s:Boolean>
   <s:Boolean x:Key="/Default/UserDictionary/Words/=hangfire/@EntryIndexedValue">True</s:Boolean>
   <s:Boolean x:Key="/Default/UserDictionary/Words/=postgre/@EntryIndexedValue">True</s:Boolean>

src/VirtoCommerce.Platform.Core/Modularity/FileCompareResult.cs

@@ -0,0 +1,16 @@
+namespace VirtoCommerce.Platform.Core.Modularity;
+
+public class FileCompareResult
+{
+    public bool NewFile { get; set; }
+    public bool NewDate { get; set; }
+
+    public bool SameVersion { get; set; }
+    public bool NewVersion { get; set; }
+    public bool SameOrNewVersion => SameVersion || NewVersion;
+
+    public bool CompatibleArchitecture { get; set; }
+    public bool SameArchitecture { get; set; }
+    public bool NewArchitecture { get; set; }
+    public bool SameOrNewArchitecture => SameArchitecture || NewArchitecture;
+}

src/VirtoCommerce.Platform.Core/Modularity/IFileCopyPolicy.cs

@@ -0,0 +1,8 @@
+using System.Runtime.InteropServices;
+
+namespace VirtoCommerce.Platform.Core.Modularity;
+
+public interface IFileCopyPolicy
+{
+    bool IsCopyRequired(Architecture environment, string sourceFilePath, string targetFilePath, out FileCompareResult result);
+}

src/VirtoCommerce.Platform.Core/Modularity/IFileMetadataProvider.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Runtime.InteropServices;
+
+namespace VirtoCommerce.Platform.Core.Modularity
+{
+    public interface IFileMetadataProvider
+    {
+        bool Exists(string filePath);
+        DateTime? GetDate(string filePath);
+        Version GetVersion(string filePath);
+        Architecture? GetArchitecture(string filePath);
+    }
+}

src/VirtoCommerce.Platform.Modules/Local/FileCopyPolicy.cs

@@ -0,0 +1,64 @@
+using System.Runtime.InteropServices;
+using VirtoCommerce.Platform.Core.Modularity;
+
+namespace VirtoCommerce.Platform.Modules.Local;
+
+public class FileCopyPolicy : IFileCopyPolicy
+{
+    private readonly IFileMetadataProvider _metadataProvider;
+
+    public FileCopyPolicy(IFileMetadataProvider metadataProvider)
+    {
+        _metadataProvider = metadataProvider;
+    }
+
+    public bool IsCopyRequired(Architecture environment, string sourceFilePath, string targetFilePath, out FileCompareResult result)
+    {
+        result = new FileCompareResult
+        {
+            NewFile = !_metadataProvider.Exists(targetFilePath),
+        };
+
+        CompareDates(sourceFilePath, targetFilePath, result);
+        CompareVersions(sourceFilePath, targetFilePath, result);
+        CompareArchitecture(sourceFilePath, targetFilePath, environment, result);
+
+        return result.NewFile && result.CompatibleArchitecture ||
+               result.NewVersion && result.SameOrNewArchitecture ||
+               result.NewArchitecture && result.SameOrNewVersion ||
+               result.NewDate && result.SameOrNewArchitecture && result.SameOrNewVersion;
+    }
+
+    private void CompareDates(string sourceFilePath, string targetFilePath, FileCompareResult result)
+    {
+        var sourceDate = _metadataProvider.GetDate(sourceFilePath);
+        var targetDate = _metadataProvider.GetDate(targetFilePath);
+
+        result.NewDate = sourceDate > targetDate;
+    }
+
+    private void CompareVersions(string sourceFilePath, string targetFilePath, FileCompareResult result)
+    {
+        var sourceVersion = _metadataProvider.GetVersion(sourceFilePath);
+        var targetVersion = _metadataProvider.GetVersion(targetFilePath);
+
+        result.SameVersion = sourceVersion == targetVersion;
+        result.NewVersion = targetVersion is not null && sourceVersion > targetVersion;
+    }
+
+    private void CompareArchitecture(string sourceFilePath, string targetFilePath, Architecture environment, FileCompareResult result)
+    {
+        var sourceArchitecture = _metadataProvider.GetArchitecture(sourceFilePath);
+        var targetArchitecture = _metadataProvider.GetArchitecture(targetFilePath);
+
+        result.CompatibleArchitecture = sourceArchitecture == targetArchitecture ||
+                                        sourceArchitecture == environment ||
+                                        sourceArchitecture == Architecture.X86 && environment == Architecture.X64;
+
+        if (result.CompatibleArchitecture)
+        {
+            result.SameArchitecture = sourceArchitecture == targetArchitecture;
+            result.NewArchitecture = sourceArchitecture == environment && targetArchitecture != environment;
+        }
+    }
+}

src/VirtoCommerce.Platform.Modules/Local/FileMetadataProvider.cs

@@ -0,0 +1,100 @@
+using System;
+using System.Diagnostics;
+using System.IO;
+using System.Linq;
+using System.Runtime.InteropServices;
+using Microsoft.Extensions.Options;
+using VirtoCommerce.Platform.Core.Modularity;
+
+namespace VirtoCommerce.Platform.Modules.Local;
+
+public class FileMetadataProvider : IFileMetadataProvider
+{
+    private readonly LocalStorageModuleCatalogOptions _options;
+
+    public FileMetadataProvider(IOptions<LocalStorageModuleCatalogOptions> options)
+    {
+        _options = options.Value;
+    }
+
+    public bool Exists(string filePath)
+    {
+        return File.Exists(filePath);
+    }
+
+    public DateTime? GetDate(string filePath)
+    {
+        if (!File.Exists(filePath))
+        {
+            return null;
+        }
+
+        var fileInfo = new FileInfo(filePath);
+
+        return fileInfo.LastWriteTimeUtc;
+    }
+
+    public Version GetVersion(string filePath)
+    {
+        if (!File.Exists(filePath))
+        {
+            return null;
+        }
+
+        var fileVersionInfo = FileVersionInfo.GetVersionInfo(filePath);
+
+        return new Version(
+            fileVersionInfo.FileMajorPart,
+            fileVersionInfo.FileMinorPart,
+            fileVersionInfo.FileBuildPart,
+            fileVersionInfo.FilePrivatePart);
+    }
+
+    public Architecture? GetArchitecture(string filePath)
+    {
+        if (!_options.AssemblyFileExtensions.Any(x => filePath.EndsWith(x, StringComparison.OrdinalIgnoreCase)))
+        {
+            return null;
+        }
+
+        const int startPosition = 0x3C;
+        const int peSignature = 0x00004550;
+
+        var fileInfo = new FileInfo(filePath);
+        if (!fileInfo.Exists || fileInfo.Length < startPosition + sizeof(uint))
+        {
+            return null;
+        }
+
+        using var stream = new FileStream(filePath, FileMode.Open, FileAccess.Read);
+        using var reader = new BinaryReader(stream);
+
+        stream.Seek(startPosition, SeekOrigin.Begin);
+        var peOffset = reader.ReadUInt32();
+
+        if (fileInfo.Length < peOffset + sizeof(uint) + sizeof(ushort))
+        {
+            return null;
+        }
+
+        stream.Seek(peOffset, SeekOrigin.Begin);
+        var peHead = reader.ReadUInt32();
+
+        if (peHead != peSignature)
+        {
+            return null;
+        }
+
+        var machineType = reader.ReadUInt16();
+
+        // https://stackoverflow.com/questions/480696/how-to-find-if-a-native-dll-file-is-compiled-as-x64-or-x86
+        return machineType switch
+        {
+            0x8664 => Architecture.X64,
+            0xAA64 => Architecture.Arm64,
+            0x1C0 => Architecture.Arm,
+            0x14C => Architecture.X86,
+            _ => null
+        };
+    }
+}