separated updater from main solution
This commit is contained in:
Shaun Walker
201
Oqtane.Updater/Program.cs
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201
Oqtane.Updater/Program.cs
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@ -0,0 +1,201 @@
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using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Compression;
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using System.Threading;
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namespace Oqtane.Updater
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{
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class Program
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{
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/// <summary>
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/// This console application is responsible for extracting the contents of a previously downloaded Oqtane Upgrade package
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/// </summary>
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/// <param name="args"></param>
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static void Main(string[] args)
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{
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// requires 2 arguments - the ContentRootPath and the WebRootPath of the site
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// for testing purposes set Oqtane.Upgrade as startup project and modify values below
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//Array.Resize(ref args, 2);
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//args[0] = @"C:\yourpath\oqtane.framework\Oqtane.Server";
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//args[1] = @"C:\yourpath\oqtane.framework\Oqtane.Server\wwwroot";
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if (args.Length == 2)
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{
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string contentrootfolder = args[0];
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string webrootfolder = args[1];
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string deployfolder = Path.Combine(contentrootfolder, "Packages");
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string backupfolder = Path.Combine(contentrootfolder, "Backup");
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if (Directory.Exists(deployfolder))
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{
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string packagename = "";
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string[] packages = Directory.GetFiles(deployfolder, "Oqtane.Upgrade.*.zip");
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if (packages.Length > 0)
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{
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packagename = packages[packages.Length - 1]; // use highest version
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}
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if (packagename != "")
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{
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// take the app offline
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if (File.Exists(Path.Combine(webrootfolder, "app_offline.bak")))
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{
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File.Copy(Path.Combine(webrootfolder, "app_offline.bak"), Path.Combine(contentrootfolder, "app_offline.htm"), true);
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}
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// get list of files in package with local paths
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List<string> files = new List<string>();
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using (ZipArchive archive = ZipFile.OpenRead(packagename))
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{
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foreach (ZipArchiveEntry entry in archive.Entries)
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{
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files.Add(Path.Combine(contentrootfolder, entry.FullName));
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}
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}
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// ensure files are not locked
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if (CanAccessFiles(files))
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{
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try
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{
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//clear out backup folder
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if (Directory.Exists(backupfolder))
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{
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Directory.Delete(backupfolder, true);
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}
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Directory.CreateDirectory(backupfolder);
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// backup files
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foreach (string file in files)
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{
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string filename = Path.Combine(backupfolder, file.Replace(contentrootfolder, ""));
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if (!Directory.Exists(Path.GetDirectoryName(filename)))
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{
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Directory.CreateDirectory(Path.GetDirectoryName(filename));
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}
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File.Copy(file, filename);
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}
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// extract files
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bool success = true;
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try
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{
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using (ZipArchive archive = ZipFile.OpenRead(packagename))
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{
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foreach (ZipArchiveEntry entry in archive.Entries)
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{
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string filename = Path.Combine(contentrootfolder, entry.FullName);
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if (!Directory.Exists(Path.GetDirectoryName(filename)))
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{
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Directory.CreateDirectory(Path.GetDirectoryName(filename));
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}
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entry.ExtractToFile(filename, true);
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}
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}
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}
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catch (Exception ex)
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{
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// an error occurred extracting a file
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success = false;
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Console.WriteLine("Update Not Successful: Error Extracting Files From Package - " + ex.Message);
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}
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if (success)
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{
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// clean up backup
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Directory.Delete(backupfolder, true);
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// delete package
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File.Delete(packagename);
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}
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else
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{
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// restore on failure
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foreach (string file in files)
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{
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string filename = Path.Combine(backupfolder, file.Replace(contentrootfolder, ""));
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File.Copy(filename, file);
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}
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// clean up backup
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Directory.Delete(backupfolder, true);
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}
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}
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catch (Exception ex)
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{
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Console.WriteLine("Upgrade Not Successful: " + ex.Message);
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}
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}
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else
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{
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Console.WriteLine("Upgrade Not Successful: Some Files Are Locked");
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}
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// bring the app back online
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if (File.Exists(Path.Combine(contentrootfolder, "app_offline.htm")))
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{
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File.Delete(Path.Combine(contentrootfolder, "app_offline.htm"));
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}
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}
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else
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{
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Console.WriteLine("Framework Upgrade Package Not Found");
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}
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}
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else
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{
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Console.WriteLine("Framework Upgrade Folder " + deployfolder + " Does Not Exist");
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}
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}
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else
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{
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Console.WriteLine("Missing ContentRootPath and WebRootPath Parameters");
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}
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}
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private static bool CanAccessFiles(List<string> files)
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{
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// ensure files are not locked by another process - the shutdownTimeLimit defines the duration for app shutdown
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bool canAccess = true;
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FileStream stream = null;
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int i = 0;
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while (i < (files.Count - 1) && canAccess)
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{
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string filepath = files[i];
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int attempts = 0;
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bool locked = true;
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// try up to 30 times
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while (attempts < 30 && locked)
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{
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try
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{
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if (File.Exists(filepath))
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{
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stream = File.Open(filepath, FileMode.Open, FileAccess.Read, FileShare.None);
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locked = false;
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}
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else
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{
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locked = false;
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}
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}
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catch // file is locked by another process
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{
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Thread.Sleep(1000); // wait 1 second
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}
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finally
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{
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stream?.Close();
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}
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attempts += 1;
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}
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if (locked)
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{
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canAccess = false;
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}
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i += 1;
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}
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return canAccess;
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}
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}
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}
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