install: more directory power

ModpackUpdater.Manager/Extensions.vb

@@ -0,0 +1,35 @@
+Imports System.IO
+
+Public Module Extensions
+
+    Public Sub CopyDirectory(sourceDir As String, destinationDir As String, recursive As Boolean)
+        ' Get information about the source directory
+        Dim dir As New DirectoryInfo(sourceDir)
+
+        ' Check if the source directory exists
+        If Not dir.Exists Then
+            Throw New DirectoryNotFoundException($"Source directory not found: {dir.FullName}")
+        End If
+
+        ' Cache directories before we start copying
+        Dim dirs As DirectoryInfo() = dir.GetDirectories()
+
+        ' Create the destination directory
+        Directory.CreateDirectory(destinationDir)
+
+        ' Get the files in the source directory and copy to the destination directory
+        For Each file As FileInfo In dir.GetFiles()
+            Dim targetFilePath As String = Path.Combine(destinationDir, file.Name)
+            file.CopyTo(targetFilePath)
+        Next
+
+        ' If recursive and copying subdirectories, recursively call this method
+        If recursive Then
+            For Each subDir As DirectoryInfo In dirs
+                Dim newDestinationDir As String = Path.Combine(destinationDir, subDir.Name)
+                CopyDirectory(subDir.FullName, newDestinationDir, True)
+            Next
+        End If
+    End Sub
+
+End Module

ModpackUpdater.Manager/ModpackInstaller.vb

@@ -118,15 +118,27 @@ Public Class ModpackInstaller
                         End If
                     Case UpdateActionType.Copy
                         Dim srcFilePath As String = Path.Combine(localPath, uaction.SrcPath)
-                        If File.Exists(srcFilePath) Then
+                        If uaction.IsDirectory Then
-                            Directory.CreateDirectory(Path.GetDirectoryName(destFilePath))
+                            If Directory.Exists(srcFilePath) Then
-                            File.Copy(srcFilePath, destFilePath, True)
+                                CopyDirectory(srcFilePath, destFilePath, True)
+                            End If
+                        Else
+                            If File.Exists(srcFilePath) Then
+                                Directory.CreateDirectory(Path.GetDirectoryName(destFilePath))
+                                File.Copy(srcFilePath, destFilePath, True)
+                            End If
                         End If
                     Case UpdateActionType.Move
                         Dim srcFilePath As String = Path.Combine(localPath, uaction.SrcPath)
-                        If File.Exists(srcFilePath) Then
+                        If uaction.IsDirectory Then
-                            Directory.CreateDirectory(Path.GetDirectoryName(destFilePath))
+                            If Directory.Exists(srcFilePath) Then
-                            File.Move(srcFilePath, destFilePath, True)
+                                Directory.Move(srcFilePath, destFilePath)
+                            End If
+                        Else
+                            If File.Exists(srcFilePath) Then
+                                Directory.CreateDirectory(Path.GetDirectoryName(destFilePath))
+                                File.Move(srcFilePath, destFilePath, True)
+                            End If
                         End If
                 End Select
             Else
@@ -137,9 +149,11 @@ Public Class ModpackInstaller
             RaiseEvent InstallProgessUpdated(checkResult, processed)
         Next
 
+        'Save new modpack info
         modpackInfo.Version = checkResult.LatestVersion
         modpackInfo.Save(localPath)
 
+        'Delete cached zip files
         For Each task In localZipCache
             Directory.Delete(task.ExtractedZipPath, True)
         Next
@@ -150,6 +164,7 @@ Public Class ModpackInstaller
     Private Async Function InstallFile(destFilePath As String, sourceUrl As String, isZip As Boolean, zipPath As String, localZipCache As List(Of LocalZipCacheEntry)) As Task
         Directory.CreateDirectory(Path.GetDirectoryName(destFilePath))
 
+        'Download
         Dim fsDestinationPath As String = If(isZip, Path.Combine(Path.GetTempPath(), $"mc_update_file_{Date.Now.ToBinary}.zip"), destFilePath)
         Dim sRemote As Stream = Await httpClient.GetStreamAsync(sourceUrl)
         Dim fs As New FileStream(destFilePath, FileMode.Create, FileAccess.ReadWrite)
@@ -157,10 +172,17 @@ Public Class ModpackInstaller
         sRemote.Close()
         fs.Close()
 
+        'Handle zip file
         If isZip Then
+            'Extract
             Dim zipDir As String = $"{Path.GetFileNameWithoutExtension(fsDestinationPath)}_extracted"
             ZipFile.ExtractToDirectory(fsDestinationPath, zipDir)
-            '...
+
+            'Copy content
+            Dim zipSrc As String = Path.Combine(zipDir, zipPath)
+            CopyDirectory(zipSrc, destFilePath, True)
+
+            'Delete/cache temporary files
             File.Delete(fsDestinationPath)
             localZipCache?.Add(New LocalZipCacheEntry With {
                 .DownloadUrl = sourceUrl,