public async Task <bool> ExecuteAsync(CancellationToken ct)
{
if (Items.Length == 0)
{
Log.LogError("No items were provided for upload.");
return(false);
}
Log.LogMessage("Begin uploading blobs to Azure account {0} in container {1}.",
AccountName,
ContainerName);
try
{
AzureStorageUtils blobUtils = new AzureStorageUtils(AccountName, AccountKey, ContainerName);
List <Task> uploadTasks = new List <Task>();
foreach (var item in Items)
{
uploadTasks.Add(Task.Run(async() =>
{
string relativeBlobPath = item.GetMetadata("RelativeBlobPath");
if (string.IsNullOrEmpty(relativeBlobPath))
{
throw new Exception(string.Format("Metadata 'RelativeBlobPath' is missing for item '{0}'.", item.ItemSpec));
}
if (!File.Exists(item.ItemSpec))
{
throw new Exception(string.Format("The file '{0}' does not exist.", item.ItemSpec));
}
BlobClient blobReference = blobUtils.GetBlob(relativeBlobPath);
if (!Overwrite && await blobReference.ExistsAsync())
{
if (PassIfExistingItemIdentical)
{
if (await blobReference.IsFileIdenticalToBlobAsync(item.ItemSpec))
{
return;
}
}
throw new Exception(string.Format("The blob '{0}' already exists.", relativeBlobPath));
}
CancellationTokenSource timeoutTokenSource = new CancellationTokenSource(TimeSpan.FromMinutes(UploadTimeoutInMinutes));
using (Stream localFileStream = File.OpenRead(item.ItemSpec))
{
await blobReference.UploadAsync(localFileStream, timeoutTokenSource.Token);
}
}));
}
await Task.WhenAll(uploadTasks);
Log.LogMessage("Upload to Azure is complete, a total of {0} items were uploaded.", Items.Length);
}
catch (Exception e)
{
Log.LogErrorFromException(e, true);
}
return(!Log.HasLoggedErrors);
}
