Kenneth Skovhede
62ea2d23f5
This refactors a part of the database and adds a new "sync" command that reuses a lot of the backup logic to take a set of sources and apply them to a backend. Unlike the backup process, the sync copies files verbatim without any encryption.
59 lines
2.4 KiB
C#
59 lines
2.4 KiB
C#
using System.Threading;
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using System.Threading.Tasks;
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using Duplicati.Library.Interface;
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namespace Duplicati.Library.Main.Backend;
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#nullable enable
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partial class BackendManager
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{
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/// <summary>
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/// Represents a pending CREATEFOLDER operation. The backend is created bound to
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/// the operation's <see cref="PendingOperationBase.BackendUrlOverride"/> (or the
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/// base backend URL when null), and <see cref="IBackend.CreateFolderAsync"/> is
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/// invoked to create the folder at that URL. A <see cref="FolderAreadyExistedException"/>
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/// is treated as success (the folder already being present is the desired state).
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/// Used by sync to ensure a destination sub-folder exists before uploading a file
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/// into it (the backend manager points the backend at the sub-folder URL, so the
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/// folder gets created at the right location regardless of whether the backend is
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/// folder-enabled).
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/// </summary>
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/// <remarks>
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/// Creates a new CreateFolderOperation.
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/// </remarks>
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/// <param name="context">The execution context</param>
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/// <param name="cancelToken">The cancellation token</param>
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private class CreateFolderOperation(ExecuteContext context, CancellationToken cancelToken)
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: PendingOperation<bool>(context, true, cancelToken)
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{
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/// <summary>
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/// The operation type
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/// </summary>
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public override BackendActionType Operation => BackendActionType.CreateFolder;
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/// <summary>
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/// Executes the operation
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/// </summary>
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/// <param name="backend">The backend to create the folder on</param>
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/// <param name="cancelToken">The cancellation token</param>
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/// <returns>An awaitable task returning true when the folder exists after the call</returns>
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public override async Task<bool> ExecuteAsync(IBackend backend, CancellationToken cancelToken)
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{
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Context.Statwriter.SendEvent(BackendActionType.CreateFolder, BackendEventType.Started, null, 0);
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try
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{
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await backend.CreateFolderAsync(cancelToken).ConfigureAwait(false);
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}
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catch (FolderAreadyExistedException)
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{
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// The folder already exists, which is the desired outcome of "ensure".
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}
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Context.Statwriter.SendEvent(BackendActionType.CreateFolder, BackendEventType.Completed, null, 0);
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return true;
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}
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}
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}
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