774 lines
38 KiB
C#
774 lines
38 KiB
C#
// Copyright (C) 2025, The Duplicati Team
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// https://duplicati.com, hello@duplicati.com
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and associated documentation files (the "Software"),
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// to deal in the Software without restriction, including without limitation
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// the rights to use, copy, modify, merge, publish, distribute, sublicense,
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// and/or sell copies of the Software, and to permit persons to whom the
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// Software is furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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// DEALINGS IN THE SOFTWARE.
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using Duplicati.Library.Interface;
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using System;
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using System.Collections.Generic;
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using System.CommandLine;
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using System.CommandLine.Invocation;
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using System.IO;
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using System.Linq;
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using System.Threading;
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using System.Threading.Tasks;
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namespace RemoteSynchronization
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{
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/// <summary>
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/// Remote synchronization tool.
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/// </summary>
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public class Program
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{
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// Default values for the options
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private const bool DEFAULT_DRY_RUN = false;
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private const bool DEFAULT_VERIFY_CONTENTS = false;
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private const bool DEFAULT_VERIFY_GET_AFTER_PUT = false;
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private const int DEFAULT_RETRY = 3;
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private const bool DEFAULT_FORCE = false;
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private const bool DEFAULT_RETENTION = false;
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private const bool DEFAULT_CONFIRM = false;
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private const string DEFAULT_LOG_LEVEL = "Information";
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private const string DEFAULT_LOG_FILE = "";
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private const bool DEFAULT_PROGRESS = false;
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/// <summary>
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/// Global configuration for the tool. Should be set after parsing the commandline arguments.
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/// </summary>
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private class GlobalConfig
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{
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/// <summary>
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/// Whether the tool should not actually write or delete files. Defaults to false.
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/// </summary>
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internal static bool DryRun = DEFAULT_DRY_RUN;
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/// <summary>
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/// Whether the tool should force the synchronization. Defaults to false.
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/// </summary>
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internal static bool Force = DEFAULT_FORCE;
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/// <summary>
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/// The log level to use. Defaults to "Information".
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/// </summary>
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internal static string LogLevel = DEFAULT_LOG_LEVEL;
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/// <summary>
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/// The log file to write to. Defaults to an empty string.
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/// </summary>
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internal static string LogFile = DEFAULT_LOG_FILE;
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/// <summary>
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/// Whether the tool should print progress to STDOUT. Defaults to false.
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/// </summary>
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internal static bool Progress = DEFAULT_PROGRESS;
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/// <summary>
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/// Whether the tool should verify the contents of the files to decide whether the pre-existing destination files should be overwritten. Defaults to false.
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/// </summary>
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internal static bool VerifyContents = DEFAULT_VERIFY_CONTENTS;
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/// <summary>
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/// Whether the tool should verify the files after uploading them to ensure that they were uploaded correctly. Defaults to false.
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/// </summary>
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internal static bool VerifyGetAfterPut = DEFAULT_VERIFY_GET_AFTER_PUT;
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}
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/// <summary>
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/// The log tag for this tool.
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/// </summary>
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private static readonly string LOGTAG = Duplicati.Library.Logging.Log.LogTagFromType<Program>();
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/// <summary>
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/// Main entry point for the tool.
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/// </summary>
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/// <param name="args">The commandline arguments</param>
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/// <returns>0 on success, -1 on abort, and the number of errors encountered otherwise.</returns>
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public static async Task<int> Main(string[] args)
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{
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var src_arg = new Argument<string>(name: "backend_src", description: "The source backend string");
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var dst_arg = new Argument<string>(name: "backend_dst", description: "The destination backend string");
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var dry_run_opt = new Option<bool>(aliases: ["--dry-run", "-d"], description: "Do not actually write or delete files. If not set here, the global options will be checked", getDefaultValue: () => DEFAULT_DRY_RUN);
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var src_opts = OptionWithMultipleTokens(aliases: ["--src-options"], description: "Options for the source backend");
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var dst_opts = OptionWithMultipleTokens(aliases: ["--dst-options"], description: "Options for the destination backend");
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var verify_contents_opt = new Option<bool>(aliases: ["--verify-contents"], description: "Verify the contents of the files to decide whether the pre-existing destination files should be overwritten", getDefaultValue: () => DEFAULT_VERIFY_CONTENTS);
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var verify_get_after_put_opt = new Option<bool>(aliases: ["--verify-get-after-put"], description: "Verify the files after uploading them to ensure that they were uploaded correctly", getDefaultValue: () => DEFAULT_VERIFY_GET_AFTER_PUT);
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var retry_opt = new Option<int>(aliases: ["--retry"], description: "Number of times to retry on errors", getDefaultValue: () => DEFAULT_RETRY) { Arity = ArgumentArity.ExactlyOne };
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var force_opt = new Option<bool>(aliases: ["--force"], description: "Force the synchronization", getDefaultValue: () => DEFAULT_FORCE);
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var retention_opt = new Option<bool>(aliases: ["--retention"], description: "Toggles whether to keep old files. Any deletes will be renames instead", getDefaultValue: () => DEFAULT_RETENTION);
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var confirm_opt = new Option<bool>(aliases: ["--confirm"], description: "Automatically confirm the operation", getDefaultValue: () => DEFAULT_CONFIRM);
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var global_opts = OptionWithMultipleTokens(aliases: ["--global-options"], description: "Global options all backends. May be overridden by backend specific options (src-options, dst-options)");
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var log_level_opt = new Option<string>(aliases: ["--log-level"], description: "The log level to use. If not set here, global options will be checked", getDefaultValue: () => DEFAULT_LOG_LEVEL) { Arity = ArgumentArity.ExactlyOne };
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var log_file_opt = new Option<string>(aliases: ["--log-file"], description: "The log file to write to. If not set here, global options will be checked", getDefaultValue: () => DEFAULT_LOG_FILE) { Arity = ArgumentArity.ExactlyOne };
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var progress_opt = new Option<bool>(aliases: ["--progress"], description: "Print progress to STDOUT", getDefaultValue: () => DEFAULT_PROGRESS);
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var root_cmd = new RootCommand(@"Remote Synchronization Tool
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This tool synchronizes two remote backends. The tool assumes that the intent is
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to have the destination match the source.
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If the destination has files that are not in the source, they will be deleted
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(or renamed if the retention option is set).
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If the destination has files that are in the source but are different in size or
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has a newer timestamp, they will be overwritten by the source files.
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If the force option is set, the destination will be overwritten by the source,
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regardless of the state of the files. It will also skip the initial comparison,
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and delete (or rename) all files in the destination.
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If the verify option is set, the files will be downloaded and compared after
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uploading to ensure that the files are correct. Files that already exist in the
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destination will be verified before being overwritten (if they seemingly match).
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");
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root_cmd.AddArgument(src_arg);
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root_cmd.AddArgument(dst_arg);
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root_cmd.AddOption(dry_run_opt);
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root_cmd.AddOption(src_opts);
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root_cmd.AddOption(dst_opts);
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root_cmd.AddOption(verify_contents_opt);
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root_cmd.AddOption(verify_get_after_put_opt);
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root_cmd.AddOption(retry_opt);
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root_cmd.AddOption(force_opt);
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root_cmd.AddOption(retention_opt);
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root_cmd.AddOption(confirm_opt);
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root_cmd.AddOption(global_opts);
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root_cmd.AddOption(log_level_opt);
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root_cmd.AddOption(log_file_opt);
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root_cmd.AddOption(progress_opt);
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root_cmd.SetHandler((InvocationContext ctx) =>
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{
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var parsed = ctx.ParseResult;
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Dictionary<string, object?> options = parsed.CommandResult.Command.Options.ToDictionary(x => x.Name, x => parsed.GetValueForOption(x));
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Run(parsed.GetValueForArgument(src_arg), parsed.GetValueForArgument(dst_arg), options).Wait();
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});
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return await root_cmd.InvokeAsync(args);
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}
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/// <summary>
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/// The main logic of the tool.
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/// </summary>
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/// <param name="src">The connection string for the source backend.</param>
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/// <param name="dst">The connection string for the destination backend.</param>
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/// <param name="options">Various options for the tool</param>
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/// <returns>The return code for the main entry; 0 on success.</returns>
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private static async Task<int> Run(string src, string dst, Dictionary<string, object?> options)
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{
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// Parse the known options for this tool
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GlobalConfig.Force = options["force"] as bool? ?? DEFAULT_FORCE;
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GlobalConfig.DryRun = options["dry-run"] as bool? ?? DEFAULT_DRY_RUN;
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GlobalConfig.LogLevel = options["log-level"] as string ?? DEFAULT_LOG_LEVEL;
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GlobalConfig.LogFile = options["log-file"] as string ?? DEFAULT_LOG_FILE;
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GlobalConfig.VerifyContents = options["verify"] as bool? ?? DEFAULT_VERIFY_CONTENTS;
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GlobalConfig.VerifyGetAfterPut = options["verify-get-after-put"] as bool? ?? DEFAULT_VERIFY_GET_AFTER_PUT;
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var retries = options["retry"] as int? ?? DEFAULT_RETRY;
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var retention = options["retention"] as bool? ?? DEFAULT_RETENTION;
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var confirm = options["confirm"] as bool? ?? DEFAULT_CONFIRM;
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// Unpack and parse the multi token options
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Dictionary<string, string> global_options = (options["global-options"] as List<string>)
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?.Select(x => x.Split("="))
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.ToDictionary(x => x[0], x => x[1])
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?? [];
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// Parse the log level
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var log_level = options["log-level"] as string ?? DEFAULT_LOG_LEVEL;
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var log_level_parsed = Enum.TryParse<Duplicati.Library.Logging.LogMessageType>(log_level, true, out var log_level_enum);
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log_level_enum = log_level_parsed ? log_level_enum : Duplicati.Library.Logging.LogMessageType.Information;
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// Parse the log file
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var log_file = options["log-file"] as string ?? DEFAULT_LOG_FILE;
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var file_sink = (Duplicati.Library.Main.IMessageSink?)(log_file != "" ? new Duplicati.Library.Logging.StreamLogDestination(log_file) : null);
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var console_sink = new Duplicati.CommandLine.ConsoleOutput(Console.Out, global_options);
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Duplicati.Library.Main.IMessageSink[] sinks = file_sink is null ? [console_sink] : [file_sink, console_sink];
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var multi_sink = new Duplicati.Library.Main.MultiMessageSink(sinks);
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// Start the logging scope
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using var _ = Duplicati.Library.Logging.Log.StartScope(multi_sink, log_level_enum);
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Dictionary<string, string> src_opts = (options["src-options"] as List<string>)
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?.Select(x => x.Split("="))
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.ToDictionary(x => x[0], x => x[1])
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?? [];
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Dictionary<string, string> dst_opts = (options["dst-options"] as List<string>)
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?.Select(x => x.Split("="))
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.ToDictionary(x => x[0], x => x[1])
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?? [];
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// Merge the global options into the source and destination options
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foreach (var x in global_options)
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src_opts[x.Key] = dst_opts[x.Key] = x.Value;
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// Load the backends
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using var b1 = Duplicati.Library.DynamicLoader.BackendLoader.GetBackend(src, src_opts);
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var b1s = b1 as IStreamingBackend;
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System.Diagnostics.Debug.Assert(b1s != null);
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using var b2 = Duplicati.Library.DynamicLoader.BackendLoader.GetBackend(dst, dst_opts);
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var b2s = b2 as IStreamingBackend;
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System.Diagnostics.Debug.Assert(b2s != null);
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// Prepare the operations
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var (to_copy, to_delete, to_verify) = PrepareFileLists(b1s, b2s);
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// Verify the files if requested. If the files are not verified, they will be deleted and copied again.
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long verified = 0, failed_verify = 0;
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if (GlobalConfig.VerifyContents)
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{
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// As this is a potentially slow operation, ask for confirmation of the verification)
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if (!confirm)
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{
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Console.WriteLine($"This will verify {to_verify.Count()} files before copying them. Do you want to continue? [y/N]");
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var response = Console.ReadLine();
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if (!response?.Equals("y", StringComparison.CurrentCultureIgnoreCase) ?? true)
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{
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Aborted");
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return -1;
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}
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}
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var not_verified = await VerifyAsync(b1s, b2s, to_verify);
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failed_verify = not_verified.Count();
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verified = to_verify.Count() - failed_verify;
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if (not_verified.Any())
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{
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Duplicati.Library.Logging.Log.WriteWarningMessage(LOGTAG, "rsync", null, "{0} files failed verification. They will be deleted and copied again.", not_verified.Count());
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to_delete = to_delete.Concat(not_verified);
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to_copy = to_copy.Concat(not_verified);
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}
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}
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// As this is a potentially destructive operation, ask for confirmation
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if (!confirm)
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{
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var delete_rename = retention ? "Rename" : "Delete";
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Console.WriteLine($"This will perform the following actions (in order):");
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Console.WriteLine($" - {delete_rename} {to_delete.Count()} files from {dst}");
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Console.WriteLine($" - Copy {to_copy.Count()} files from {src} to {dst}");
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Console.WriteLine();
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Console.WriteLine("Do you want to continue? [y/N]");
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var response = Console.ReadLine();
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if (!response?.Equals("y", StringComparison.CurrentCultureIgnoreCase) ?? true)
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{
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Aborted");
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return -1;
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}
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}
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// Delete or rename the files that are not needed
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long renamed = 0, deleted = 0;
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if (retention)
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{
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renamed = await RenameAsync(b2, to_delete);
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Renamed {0} files in {1}", renamed, b2s.DisplayName);
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}
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else
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{
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deleted = await DeleteAsync(b2s, to_delete);
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Deleted {0} files from {1}", deleted, b2s.DisplayName);
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}
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// Copy the files
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var (copied, copy_errors) = await CopyAsync(b1s, b2s, to_copy);
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Copied {0} files from {1} to {2}", copied, b1s, b2s);
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// If there are still errors, retry a few times
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if (copy_errors.Any())
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{
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Duplicati.Library.Logging.Log.WriteWarningMessage(LOGTAG, "rsync", null, "Could not copy {0} files.", copy_errors.Count());
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if (retries > 0)
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{
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Retrying {0} more times to copy the {1} files that failed", retries, copy_errors.Count());
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for (int i = 0; i < retries; i++)
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{
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Thread.Sleep(5000); // Wait 5 seconds before retrying
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(copied, copy_errors) = await CopyAsync(b1s, b2s, copy_errors);
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Copied {0} files from {1} to {2}", copied, b1s, b2s);
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if (!copy_errors.Any())
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break;
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}
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}
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if (copy_errors.Any())
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{
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Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", null, "Could not copy {0} files. Not retrying any more.", copy_errors.Count());
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return copy_errors.Count();
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}
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}
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// Results reporting
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if (verified > 0)
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Verified {0} files in {1} that didn't need to be copied", verified, b2s.DisplayName);
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if (failed_verify > 0)
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Failed to verify {0} files in {1}, which were then attempted to be copied", failed_verify, b2s.DisplayName);
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if (copied > 0)
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Copied {0} files from {1} to {2}", copied, b1s.DisplayName, b2s.DisplayName);
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if (deleted > 0)
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Deleted {0} files from {1}", deleted, b2s.DisplayName);
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if (renamed > 0)
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Renamed {0} files in {1}", renamed, b2s.DisplayName);
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Duplicati.Library.Logging.Log.WriteInformationMessage(LOGTAG, "rsync", "Remote synchronization completed successfully");
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return 0;
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}
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// TODO have concurrency parameters: uploaders, downloaders
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// TODO low memory mode, where things aren't kept in memory. Maybe utilize SQLite?
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// TODO For convenience, have the option to launch a "duplicati test" on the destination backend after the synchronization
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// TODO Save hash to minimize redownload
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// TODO Duplicati Results
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/// <summary>
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/// Copies the files from one backend to another.
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/// The files are copied one by one, and each file is verified after uploading if the verify flag is set.
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/// </summary>
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/// <param name="b_src">The source backend.</param>
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/// <param name="b_dst">The destination backend.</param>
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/// <param name="files">The files that will be copied.</param>
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/// <param name="dry_run">Flag for whether destructive actions (writes) should be printed rather than performed. Downloads (reads) are still being performed.</param>
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/// <param name="verify">Flag for whether to verify each upload to the destination backend.</param>
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/// <returns>A tuple holding the number of succesful copies and a List of the files that failed.</returns>
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private static async Task<(long, IEnumerable<IFileEntry>)> CopyAsync(IStreamingBackend b_src, IStreamingBackend b_dst, IEnumerable<IFileEntry> files)
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{
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long successful_copies = 0;
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List<IFileEntry> errors = [];
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using var s_src = new MemoryStream();
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using var s_dst = new MemoryStream();
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long i = 0, n = files.Count();
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var sw_get_src = new System.Diagnostics.Stopwatch();
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var sw_put_dst = new System.Diagnostics.Stopwatch();
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var sw_get_dst = new System.Diagnostics.Stopwatch();
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var sw_get_cmp = new System.Diagnostics.Stopwatch();
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foreach (var f in files)
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{
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if (GlobalConfig.Progress)
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Console.Write($"\rCopying: {i}/{n}");
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try
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{
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sw_get_src.Start();
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await b_src.GetAsync(f.Name, s_src, CancellationToken.None);
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sw_get_src.Stop();
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if (GlobalConfig.DryRun)
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{
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Duplicati.Library.Logging.Log.WriteDryrunMessage(LOGTAG, "rsync", "Would write {0} bytes of {1} to {2}", s_src.Length, f.Name, b_dst.DisplayName);
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}
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else
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{
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sw_put_dst.Start();
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await b_dst.PutAsync(f.Name, s_src, CancellationToken.None);
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sw_put_dst.Stop();
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if (GlobalConfig.VerifyGetAfterPut)
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{
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sw_get_dst.Start();
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await b_dst.GetAsync(f.Name, s_dst, CancellationToken.None);
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sw_get_dst.Stop();
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sw_get_cmp.Start();
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string? err_string = null;
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if (s_src.Length != s_dst.Length)
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{
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err_string = $"The sizes of the files do not match: {s_src.Length} != {s_dst.Length}.";
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}
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if (!s_src.ToArray().SequenceEqual(s_dst.ToArray()))
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{
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err_string = (err_string is null ? "" : err_string + " ") + "The contents of the files do not match.";
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}
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sw_get_cmp.Stop();
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if (err_string is not null)
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{
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throw new Exception(err_string);
|
|
}
|
|
}
|
|
}
|
|
successful_copies++;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", e, "Error copying {0}: {1}", f.Name, e.Message);
|
|
errors.Add(f);
|
|
}
|
|
finally
|
|
{
|
|
s_src.SetLength(0);
|
|
s_dst.SetLength(0);
|
|
i++;
|
|
|
|
// Stop any running timers
|
|
sw_get_src.Stop();
|
|
sw_put_dst.Stop();
|
|
sw_get_dst.Stop();
|
|
sw_get_cmp.Stop();
|
|
}
|
|
}
|
|
|
|
if (GlobalConfig.Progress)
|
|
Console.WriteLine($"\rCopying: {n}/{n}");
|
|
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Copy | Get source: {0} ms, Put destination: {1} ms, Get destination: {2} ms, Get compare: {3} ms", sw_get_src.ElapsedMilliseconds, sw_put_dst.ElapsedMilliseconds, sw_get_dst.ElapsedMilliseconds, sw_get_cmp.ElapsedMilliseconds);
|
|
|
|
return (successful_copies, errors);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Deletes the files from a backend.
|
|
/// </summary>
|
|
/// <param name="b">The backend to delete the files from.</param>
|
|
/// <param name="files">The files to delete.</param>
|
|
/// <param name="dry_run">Flag for whether the deletion should be printed rather than performed.</param>
|
|
/// <returns>The number of successful deletions.</returns>
|
|
private static async Task<long> DeleteAsync(IStreamingBackend b, IEnumerable<IFileEntry> files)
|
|
{
|
|
long successful_deletes = 0;
|
|
long i = 0, n = files.Count();
|
|
var sw = new System.Diagnostics.Stopwatch();
|
|
sw.Restart();
|
|
|
|
foreach (var f in files)
|
|
{
|
|
if (n > 1)
|
|
{
|
|
Console.Write($"\rDeleting: {i}/{n}");
|
|
}
|
|
try
|
|
{
|
|
if (GlobalConfig.DryRun)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteDryrunMessage(LOGTAG, "rsync", "Would delete {0} from {1}", f.Name, b.DisplayName);
|
|
}
|
|
else
|
|
{
|
|
await b.DeleteAsync(f.Name, CancellationToken.None);
|
|
}
|
|
successful_deletes++;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", e, "Error deleting {0}: {1}", f.Name, e.Message);
|
|
}
|
|
i++;
|
|
}
|
|
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Delete: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
Console.WriteLine($"\rDeleting: {n}/{n}");
|
|
return successful_deletes;
|
|
}
|
|
|
|
/// <summary>
|
|
/// Creates an option that allows multiple tokens and multiple arguments per token.
|
|
/// </summary>
|
|
/// <param name="aliases">The aliases for the option.</param>
|
|
/// <param name="description">The description for the option.</param>
|
|
/// <returns>The created option.</returns>
|
|
private static Option<List<string>> OptionWithMultipleTokens(string[] aliases, string description)
|
|
{
|
|
return new Option<List<string>>(aliases: aliases, description: description)
|
|
{
|
|
Arity = ArgumentArity.OneOrMore,
|
|
AllowMultipleArgumentsPerToken = true
|
|
};
|
|
}
|
|
|
|
/// <summary>
|
|
/// Prepares the lists of files to copy, delete and verify.
|
|
/// The files to copy are the files that are not in the destination, have a different size or have a more recent modification date.
|
|
/// The files to delete are the files that are found in the destination but not found in the source.
|
|
/// The files to verify are the files that are found in both the source and the destination, and that have the same size and modification date.
|
|
/// </summary>
|
|
/// <param name="b_src">The source backend.</param>
|
|
/// <param name="b_dst">The destination backend.</param>
|
|
/// <param name="force">Flag for whether to force the synchronization.</param>
|
|
/// <returns>A tuple of Lists each holding the files to copy, delete and verify.</returns>
|
|
private static (IEnumerable<IFileEntry>, IEnumerable<IFileEntry>, IEnumerable<IFileEntry>) PrepareFileLists(IStreamingBackend b_src, IStreamingBackend b_dst)
|
|
{
|
|
var sw = new System.Diagnostics.Stopwatch();
|
|
|
|
sw.Restart();
|
|
var files_src = b_src.List();
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | List source: {0} ms", sw.ElapsedMilliseconds);
|
|
sw.Restart();
|
|
var files_dst = b_dst.List();
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | List destination: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
// Shortcut for force
|
|
if (GlobalConfig.Force)
|
|
{
|
|
return (files_src, files_dst, []);
|
|
}
|
|
|
|
// Shortcut for empty destination
|
|
if (!files_dst.Any())
|
|
{
|
|
return (files_src, [], []);
|
|
}
|
|
|
|
sw.Restart();
|
|
var lookup_src = files_src.ToDictionary(x => x.Name);
|
|
var lookup_dst = files_dst.ToDictionary(x => x.Name);
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | Build lookup for source and destination: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
var to_copy = new List<IFileEntry>();
|
|
var to_delete = new HashSet<string>();
|
|
var to_verify = new List<IFileEntry>();
|
|
|
|
// Find all of the files in src that are not in dst, have a different size or have a more recent modification date
|
|
sw.Restart();
|
|
foreach (var f_src in files_src)
|
|
{
|
|
if (lookup_dst.TryGetValue(f_src.Name, out var f_dst))
|
|
{
|
|
if (f_src.Size != f_dst.Size || f_src.LastModification > f_dst.LastModification)
|
|
{
|
|
// The file is different, so we need to copy it
|
|
to_copy.Add(f_src);
|
|
to_delete.Add(f_dst.Name);
|
|
}
|
|
else
|
|
{
|
|
// The file seems to be the same, so we need to verify it if the user wants to
|
|
to_verify.Add(f_src);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// The file is not in the destination, so we need to copy it
|
|
to_copy.Add(f_src);
|
|
}
|
|
}
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | Check the files that are present in source against destination: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
// Find all of the files in dst that are not in src
|
|
sw.Start();
|
|
foreach (var f_dst in files_dst)
|
|
{
|
|
if (to_delete.Contains(f_dst.Name))
|
|
continue;
|
|
|
|
if (!lookup_src.ContainsKey(f_dst.Name))
|
|
{
|
|
to_delete.Add(f_dst.Name);
|
|
}
|
|
}
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | Check the files that are present in destination against source: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
sw.Restart();
|
|
var to_delete_lookedup = to_delete.Select(x => lookup_dst[x]).ToList();
|
|
sw.Stop();
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Prepare | Lookup the files to delete: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
return (to_copy, to_delete_lookedup, to_verify);
|
|
}
|
|
|
|
/// <summary>
|
|
/// Renames the files in a backend.
|
|
/// The renaming is done by deleting the file and re-uploading it with a new name.
|
|
/// </summary>
|
|
/// <param name="b">The backend to rename the files in.</param>
|
|
/// <param name="files">The files to rename.</param>
|
|
/// <param name="dry_run">Flag for whether the renaming should be printed rather than performed.</param>
|
|
/// <returns>The number of successful renames.</returns>
|
|
private static async Task<long> RenameAsync(IBackend b, IEnumerable<IFileEntry> files)
|
|
{
|
|
long successful_renames = 0;
|
|
string suffix = $"{System.DateTime.Now:yyyyMMddHHmmss}.old";
|
|
using var downloaded = new MemoryStream();
|
|
long i = 0, n = files.Count();
|
|
|
|
switch (b)
|
|
{
|
|
case IStreamingBackend sb:
|
|
{
|
|
var sw_get_src = new System.Diagnostics.Stopwatch();
|
|
var sw_put_dst = new System.Diagnostics.Stopwatch();
|
|
var sw_del_src = new System.Diagnostics.Stopwatch();
|
|
|
|
foreach (var f in files)
|
|
{
|
|
if (GlobalConfig.Progress)
|
|
Console.Write($"\rRenaming: {i}/{n}");
|
|
|
|
try
|
|
{
|
|
sw_get_src.Start();
|
|
await sb.GetAsync(f.Name, downloaded, CancellationToken.None);
|
|
sw_get_src.Stop();
|
|
|
|
if (GlobalConfig.DryRun)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteDryrunMessage(LOGTAG, "rsync", "Would rename {0} to {0}.{1} by deleting and re-uploading {2} bytes to {3}", f.Name, suffix, downloaded.Length, sb.DisplayName);
|
|
}
|
|
else
|
|
{
|
|
sw_put_dst.Start();
|
|
await sb.PutAsync($"{f.Name}.{suffix}", downloaded, CancellationToken.None);
|
|
sw_put_dst.Stop();
|
|
sw_del_src.Start();
|
|
await sb.DeleteAsync(f.Name, CancellationToken.None);
|
|
sw_del_src.Stop();
|
|
}
|
|
successful_renames++;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", e, "Error renaming {0}: {1}", f.Name, e.Message);
|
|
}
|
|
finally
|
|
{
|
|
// Reset the stream
|
|
downloaded.SetLength(0);
|
|
|
|
// Stop any running timers
|
|
sw_get_src.Stop();
|
|
sw_put_dst.Stop();
|
|
sw_del_src.Stop();
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Rename | Get source: {0} ms, Put destination: {1} ms, Delete source: {2} ms", sw_get_src.ElapsedMilliseconds, sw_put_dst.ElapsedMilliseconds, sw_del_src.ElapsedMilliseconds);
|
|
|
|
if (GlobalConfig.Progress)
|
|
Console.WriteLine($"\rRenaming: {n}/{n}");
|
|
|
|
return successful_renames;
|
|
}
|
|
case IRenameEnabledBackend rb:
|
|
{
|
|
var sw = new System.Diagnostics.Stopwatch();
|
|
|
|
foreach (var f in files)
|
|
{
|
|
if (GlobalConfig.Progress)
|
|
Console.Write($"\rRenaming: {i}/{n}");
|
|
|
|
try
|
|
{
|
|
if (GlobalConfig.DryRun)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteDryrunMessage(LOGTAG, "rsync", "Would rename {0} to {0}.{1} by calling Rename on {2}", f.Name, suffix, rb.DisplayName);
|
|
}
|
|
else
|
|
{
|
|
sw.Start();
|
|
await rb.RenameAsync(f.Name, $"{f.Name}.{suffix}", CancellationToken.None);
|
|
sw.Stop();
|
|
}
|
|
successful_renames++;
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", e, "Error renaming {0}: {1}", f.Name, e.Message);
|
|
sw.Stop();
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Rename: {0} ms", sw.ElapsedMilliseconds);
|
|
|
|
if (GlobalConfig.Progress)
|
|
Console.WriteLine($"\rRenaming: {n}/{n}");
|
|
|
|
return successful_renames;
|
|
}
|
|
default:
|
|
throw new NotSupportedException("The backend does not support renaming");
|
|
}
|
|
}
|
|
|
|
/// <summary>
|
|
/// Verifies the files in the destination backend.
|
|
/// The verification is done by downloading the files from the destination backend and comparing them to the source files.
|
|
/// </summary>
|
|
/// <param name="b_src">The source backend.</param>
|
|
/// <param name="b_dst">The destination backend.</param>
|
|
/// <param name="files">The files to verify.</param>
|
|
/// <returns>A list of the files that failed verification.</returns>
|
|
private static async Task<IEnumerable<IFileEntry>> VerifyAsync(IStreamingBackend b_src, IStreamingBackend b_dst, IEnumerable<IFileEntry> files)
|
|
{
|
|
var errors = new List<IFileEntry>();
|
|
using var s_src = new MemoryStream();
|
|
using var s_dst = new MemoryStream();
|
|
long i = 0, n = files.Count();
|
|
var sw_get = new System.Diagnostics.Stopwatch();
|
|
var sw_cmp = new System.Diagnostics.Stopwatch();
|
|
|
|
foreach (var f in files)
|
|
{
|
|
if (GlobalConfig.Progress)
|
|
Console.Write($"\rVerifying: {i}/{n}");
|
|
|
|
try
|
|
{
|
|
// Get both files
|
|
sw_get.Start();
|
|
var fs = b_src.GetAsync(f.Name, s_src, CancellationToken.None);
|
|
var ds = b_dst.GetAsync(f.Name, s_dst, CancellationToken.None);
|
|
await Task.WhenAll(fs, ds);
|
|
sw_get.Stop();
|
|
|
|
// Compare the contents
|
|
sw_cmp.Start();
|
|
if (s_src.Length != s_dst.Length || !s_src.ToArray().SequenceEqual(s_dst.ToArray()))
|
|
{
|
|
errors.Add(f);
|
|
}
|
|
sw_cmp.Stop();
|
|
}
|
|
catch (Exception e)
|
|
{
|
|
errors.Add(f);
|
|
Duplicati.Library.Logging.Log.WriteErrorMessage(LOGTAG, "rsync", e, "Error during verification of {0}: {1}", f.Name, e.Message);
|
|
}
|
|
finally
|
|
{
|
|
// Reset the streams
|
|
s_src.SetLength(0);
|
|
s_dst.SetLength(0);
|
|
|
|
// Stop any running timers
|
|
sw_get.Stop();
|
|
sw_cmp.Stop();
|
|
}
|
|
|
|
i++;
|
|
}
|
|
|
|
Duplicati.Library.Logging.Log.WriteProfilingMessage(LOGTAG, "rsync", "Verify | Get: {0} ms, Compare: {1} ms", sw_get.ElapsedMilliseconds, sw_cmp.ElapsedMilliseconds);
|
|
|
|
if (GlobalConfig.Progress)
|
|
Console.WriteLine($"\rVerifying: {n}/{n}");
|
|
|
|
return errors;
|
|
}
|
|
|
|
}
|
|
}
|