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using System;
using System.IO;
using System.IO.Compression;
using System.Linq;
using StardewModdingAPI.Mods.SaveBackup.Framework;
using StardewValley;
namespace StardewModdingAPI.Mods.SaveBackup
{
/// <summary>The main entry point for the mod.</summary>
public class ModEntry : Mod
{
/*********
** Properties
*********/
/// <summary>The name of the save archive to create.</summary>
private readonly string FileName = $"{DateTime.UtcNow:yyyy-MM-dd} - SMAPI {Constants.ApiVersion} with Stardew Valley {Game1.version}.zip";
/*********
** Public methods
*********/
/// <summary>The mod entry point, called after the mod is first loaded.</summary>
/// <param name="helper">Provides simplified APIs for writing mods.</param>
public override void Entry(IModHelper helper)
{
try
{
ModConfig config = this.Helper.ReadConfig<ModConfig>();
// init backup folder
DirectoryInfo backupFolder = new DirectoryInfo(Path.Combine(this.Helper.DirectoryPath, "backups"));
backupFolder.Create();
// back up saves
this.CreateBackup(backupFolder);
this.PruneBackups(backupFolder, config.BackupsToKeep);
}
catch (Exception ex)
{
this.Monitor.Log($"Error backing up saves: {ex}");
}
}
/*********
** Private methods
*********/
/// <summary>Back up the current saves.</summary>
/// <param name="backupFolder">The folder containing save backups.</param>
private void CreateBackup(DirectoryInfo backupFolder)
{
FileInfo file = new FileInfo(Path.Combine(backupFolder.FullName, this.FileName));
if (!file.Exists)
{
this.Monitor.Log($"Adding {file.Name}...", LogLevel.Trace);
ZipFile.CreateFromDirectory(Constants.SavesPath, file.FullName, CompressionLevel.Fastest, includeBaseDirectory: false);
}
}
/// <summary>Remove old backups if we've exceeded the limit.</summary>
/// <param name="backupFolder">The folder containing save backups.</param>
/// <param name="backupsToKeep">The number of backups to keep.</param>
private void PruneBackups(DirectoryInfo backupFolder, int backupsToKeep)
{
var oldBackups = backupFolder
.GetFiles()
.OrderByDescending(p => p.CreationTimeUtc)
.Skip(backupsToKeep);
foreach (FileInfo file in oldBackups)
{
try
{
this.Monitor.Log($"Deleting {file.Name}...", LogLevel.Trace);
file.Delete();
}
catch (Exception ex)
{
this.Monitor.Log($"Error deleting old save backup '{file.Name}': {ex}");
}
}
}
}
}
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