114 lines
3.9 KiB
C#
114 lines
3.9 KiB
C#
// Copyright (c) .NET Foundation and contributors. All rights reserved.
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// Licensed under the MIT license. See LICENSE file in the project root for full license information.
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using Microsoft.Build.Framework;
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using Microsoft.Build.Utilities;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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namespace Microsoft.DotNet.Cli.Build
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{
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public class CopyBlobsToLatest : Task
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{
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private AzurePublisher _azurePublisher;
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[Required]
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public string AccountName { get; set; }
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[Required]
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public string AccountKey { get; set; }
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[Required]
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public string Channel { get; set; }
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[Required]
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public string CommitHash { get; set; }
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[Required]
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public string ContainerName { get; set; }
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[Required]
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public string NugetVersion { get; set; }
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public bool Coherent { get; set; }
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private AzurePublisher AzurePublisherTool
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{
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get
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{
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if (_azurePublisher == null)
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{
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_azurePublisher = new AzurePublisher(AccountName, AccountKey, ContainerName);
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}
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return _azurePublisher;
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}
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}
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public override bool Execute()
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{
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string targetFolder = $"{AzurePublisher.Product.Sdk}/{Channel}";
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string targetVersionFile = $"{targetFolder}/{CommitHash}";
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string semaphoreBlob = $"{targetFolder}/publishSemaphore";
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AzurePublisherTool.CreateBlobIfNotExists(semaphoreBlob);
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string leaseId = AzurePublisherTool.AcquireLeaseOnBlob(semaphoreBlob);
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// Prevent race conditions by dropping a version hint of what version this is. If we see this file
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// and it is the same as our version then we know that a race happened where two+ builds finished
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// at the same time and someone already took care of publishing and we have no work to do.
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if (AzurePublisherTool.IsLatestSpecifiedVersion(targetVersionFile))
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{
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AzurePublisherTool.ReleaseLeaseOnBlob(semaphoreBlob, leaseId);
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return true;
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}
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else
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{
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Regex versionFileRegex = new Regex(@"(?<CommitHash>[\w\d]{40})");
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// Delete old version files
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AzurePublisherTool.ListBlobs(targetFolder)
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.Where(s => versionFileRegex.IsMatch(s))
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.ToList()
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.ForEach(f => AzurePublisherTool.TryDeleteBlob(f));
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// Drop the version file signaling such for any race-condition builds (see above comment).
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AzurePublisherTool.DropLatestSpecifiedVersion(targetVersionFile);
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}
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try
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{
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CopyBlobs(targetFolder);
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string cliVersion = Utils.GetVersionFileContent(CommitHash, NugetVersion);
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AzurePublisherTool.PublishStringToBlob($"{targetFolder}/latest.version", cliVersion);
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if (Coherent == true)
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{
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AzurePublisherTool.PublishStringToBlob($"{targetFolder}/latest.coherent.version", cliVersion);
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}
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}
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finally
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{
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AzurePublisherTool.ReleaseLeaseOnBlob(semaphoreBlob, leaseId);
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}
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return true;
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}
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private void CopyBlobs(string destinationFolder)
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{
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Log.LogMessage("Copying blobs to {0}/{1}", ContainerName, destinationFolder);
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foreach (string blob in AzurePublisherTool.ListBlobs(AzurePublisher.Product.Sdk, NugetVersion))
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{
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string targetName = Path.GetFileName(blob)
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.Replace(NugetVersion, "latest");
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string target = $"{destinationFolder}/{targetName}";
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AzurePublisherTool.CopyBlob(blob, target);
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}
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}
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}
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}
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