update

998-常用脚本/b-镜像同步/imageSyncDownload.ps1

@@ -0,0 +1,69 @@
+function DownloadFileInChunks {
+    param (
+        [string]$url,
+        [string]$destinationFile,
+        [int]$chunkSizeGB = 1
+    )
+
+    # 将 GB 转换为字节
+    $chunkSize = $chunkSizeGB * 1024 * 1024 * 1024
+
+    # 获取文件的总大小
+    $response = Invoke-WebRequest -Uri $url -Method Head
+    $totalSize = [long]$response.Headers["Content-Length"]
+
+    # 计算分段数量
+    $chunks = [math]::Ceiling($totalSize / $chunkSize)
+
+    # 下载每一段
+    for ($i = 0; $i -lt $chunks; $i++) {
+        $start = $i * $chunkSize
+        $end = [math]::Min($start + $chunkSize - 1, $totalSize - 1)
+
+        $headers = @{
+            "Range" = "bytes=$start-$end"
+        }
+
+        $chunkResponse = Invoke-WebRequest -Uri $url -Headers $headers -Method Get
+        $chunkData = $chunkResponse.Content
+
+        # 以追加模式写入文件
+        [System.IO.File]::WriteAllBytes($destinationFile, $chunkData)
+    }
+
+    Write-Host "dowonload ok"
+}
+
+# 指定文件路径
+$filePath = "D:\CmiiDeployOffline\ZheJiangErJiPingTai\all-gzip-image-list.txt"
+# 指定下载的目标目录
+$destinationFolder = "D:\CmiiDeployOffline\ZheJiangErJiPingTai"
+
+$oss_prefix_url="https://oss.demo.uavcmlc.com/cmlc-installation/6.1.1/"
+
+# 创建目标目录（如果不存在）
+#if (-not (Test-Path $destinationFolder)) {
+#    New-Item -ItemType Directory -Path $destinationFolder
+#}
+
+#Write-Host "[DLTU] - 开始下载镜像压缩文件"
+Write-Host ""
+
+# 读取文件并下载每一行的 URL
+Get-Content $filePath | ForEach-Object {
+    $url = $_
+    Write-Host "start to download $oss_prefix_url$url"
+
+    $fileName = Join-Path $destinationFolder $url
+    Write-Host $fileName
+    DownloadFileInChunks -url $oss_prefix_url$url -destinationFile $fileName -chunkSizeGB 0.1
+    #    Invoke-WebRequest -Uri $oss_prefix_url$url -OutFile $fileName
+    Write-Host ""
+}
+
+
+
+
+
+
+