如何在 Google Cloud Storage 中合并 2 个 zip 文件

Question

是否可以在 Google Cloud Storage 中合并 2 个 zip 文件？我可以成功合并非zip文件，但是当我要合并zip文件时，即使文件在云端成功合并，但当我要下载并打开它时，出现文件夹无法正确压缩的错误。我的问题是什么，我做错了什么？你能帮助我吗？谢谢..

示例代码如下：

“SharpZipLib”版本=“1.4.2”

“Google.Cloud.Storage.V1”版本=“4.7.0”

        // total 10 files in this directory
        string filePath = "C:\\Users\\user\\Desktop\\ziptest"; 
        
        // chunked 5 files in each list
        IEnumerable<string[]> chunkedFilesNames = Directory.GetFiles(filePath).ToList().Chunk(5);
        
        // uploaded files list
        List<string> uploadedFiles = new List<string>(); 
        int i = 0;
        
        // chunked files list
        foreach (string[] fileNames in chunkedFilesNames) 
        {
            using (MemoryStream outputMemStream = new MemoryStream())
            {
                using (ZipOutputStream zipStream = new ZipOutputStream(outputMemStream))
                {
                    // each file in chunked files list
                    foreach (string fileName in fileNames) 
                    {
                        ZipEntry zipEntry = new ZipEntry(fileName)
                        {
                            DateTime = DateTime.Now
                        };

                        // put next entry to zip stream
                        await zipStream.PutNextEntryAsync(zipEntry); 

                        // read file bytes
                        byte[] bytes = await System.IO.File.ReadAllBytesAsync(fileName); 

                        using (MemoryStream inStream = new MemoryStream(bytes)) 
                        {
                            StreamUtils.Copy(inStream, zipStream, new byte[4096]);
                        }

                        // close entry
                        zipStream.CloseEntry(); 
                    }

                    // chunked zip file name example: test/0_0014b86930954475bb80c79094f690cf.zip
                    string chunkedZip = $"test/{i}_"+Guid.NewGuid().ToString("N")+".zip";
                    
                    // add uploaded file to list
                    uploadedFiles.Add(chunkedZip);
                    
                    zipStream.IsStreamOwner = false;
                    zipStream.Close();
                    
                    // upload zip file to cloud storage
                    await _cloudStorage.UploadMemoryStream(fileName: chunkedZip, contentType: "multipart/x-zip",  stream: outputMemStream);  
                    
                    i++;
                }
            }
        }

        // compose uploaded files
        await _cloudStorage.ComposeObjects(fileNames: uploadedFiles, uploadPath: "test/composed.zip", contentType: "multipart/x-zip");

Answer 1

文件格式

.gz

和

.tar.gz

实际上接受串联。为了获得想要的结果，您应该考虑将扩展名从

.zip

更改为

.tar.gz

；这将使 Compose 能够按预期运行。