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128 lines
3.9 KiB
128 lines
3.9 KiB
using System;
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using System.Collections.Generic;
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using System.Collections.Specialized;
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using System.IO;
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using System.Linq;
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using System.Text;
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namespace IPA.Patcher
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{
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/// <summary>
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/// A unit for backup. WIP.
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/// </summary>
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public class BackupUnit
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{
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public string Name { get; private set; }
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private DirectoryInfo _BackupPath;
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private PatchContext _Context;
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private List<string> _Files = new List<string>();
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public BackupUnit(PatchContext context) : this(context, DateTime.Now.ToString("yyyy-MM-dd_h-mm-ss"))
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{
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}
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private BackupUnit(PatchContext context, string name)
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{
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Name = name;
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_Context = context;
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_BackupPath = new DirectoryInfo(Path.Combine(_Context.BackupPath, Name));
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}
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public static BackupUnit FromDirectory(DirectoryInfo directory, PatchContext context)
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{
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var unit = new BackupUnit(context, directory.Name);
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// Parse directory
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foreach(var file in directory.GetFiles("*", SearchOption.AllDirectories)) {
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var relativePath = file.FullName.Substring(directory.FullName.Length + 1);
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unit._Files.Add(relativePath);
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}
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return unit;
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}
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public void Add(string file)
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{
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Add(new FileInfo(file));
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}
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internal void Delete()
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{
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_BackupPath.Delete(true);
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}
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/// <summary>
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/// Adds a file to the list of changed files and backups it.
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/// </summary>
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/// <param name="path"></param>
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public void Add(FileInfo file)
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{
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if(!file.FullName.StartsWith(_Context.ProjectRoot))
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{
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Console.Error.WriteLine("Invalid file path for backup! {0}", file);
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return;
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}
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var relativePath = file.FullName.Substring(_Context.ProjectRoot.Length + 1);
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var backupPath = new FileInfo(Path.Combine(_BackupPath.FullName, relativePath));
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if(_Files.Contains(relativePath))
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{
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Console.WriteLine("Skipping backup of {0}", relativePath);
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return;
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}
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// Copy over
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backupPath.Directory.Create();
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if (file.Exists)
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{
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file.CopyTo(backupPath.FullName);
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} else
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{
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// Make empty file
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backupPath.Create().Close();
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}
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// Add to list
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_Files.Add(relativePath);
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}
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/// <summary>
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/// Reverts the changes made in this unit.
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/// </summary>
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public void Restore()
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{
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foreach(var relativePath in _Files)
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{
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Console.WriteLine("Restoring {0}", relativePath);
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// Original version
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var backupFile = new FileInfo(Path.Combine(_BackupPath.FullName, relativePath));
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var target = new FileInfo(Path.Combine(_Context.ProjectRoot, relativePath));
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if (backupFile.Exists)
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{
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if (backupFile.Length > 0)
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{
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Console.WriteLine(" {0} => {1}", backupFile.FullName, target.FullName);
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target.Directory.Create();
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backupFile.CopyTo(target.FullName, true);
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} else
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{
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Console.WriteLine(" x {0}", target.FullName);
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if(target.Exists)
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{
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target.Delete();
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}
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}
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} else {
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Console.Error.WriteLine("Backup not found!");
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}
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}
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}
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}
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}
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