Fix version null exception for FileSystemDocumentSource and Update document

docs/en/modules/docs.md

@@ -367,7 +367,7 @@ You can use [ABP](https://github.com/abpframework/abp/) GitHub documents to conf
 For `SQL` databases, you can use the below `T-SQL` command to insert the specified sample into your `DocsProjects` table:
 
 ```mssql
-INSERT [dbo].[DocsProjects] ([Id], [Name], [ShortName], [Format], [DefaultDocumentName], [NavigationDocumentName], [MinimumVersion], [DocumentStoreType], [ExtraProperties], [MainWebsiteUrl], [LatestVersionBranchName], [ParametersDocumentName], [ConcurrencyStamp]) VALUES (N'12f21123-e08e-4f15-bedb-ae0b2d939659', N'ABP (FileSystem)', N'abp', N'md', N'Index', N'docs-nav.json', NULL, N'FileSystem', N'{"Path":"C:\\Github\\abp\\docs"}', N'/', NULL, N'', N'12f21123e08e4f15bedbae0b2d939659')
+INSERT [dbo].[DocsProjects] ([Id], [Name], [ShortName], [Format], [DefaultDocumentName], [NavigationDocumentName], [MinimumVersion], [DocumentStoreType], [ExtraProperties], [MainWebsiteUrl], [LatestVersionBranchName], [ParametersDocumentName], [ConcurrencyStamp]) VALUES (N'12f21123-e08e-4f15-bedb-ae0b2d939659', N'ABP (GitHub)', N'abp', N'md', N'Index', N'docs-nav.json', NULL, N'GitHub', N'{"GitHubRootUrl":"https://github.com/abpframework/abp/tree/{version}/docs","GitHubAccessToken":"","GitHubUserAgent":""}', N'/', N'dev', N'', N'12f21123e08e4f15bedbae0b2d939659')
 ```
 
 Be aware that `GitHubAccessToken` is masked. It's a private token and you must get your own token and replace the `***` string.
@@ -407,7 +407,7 @@ You can use [ABP](https://github.com/abpframework/abp/) GitHub documents to conf
 For `SQL` databases, you can use the below `T-SQL` command to insert the specified sample into your `DocsProjects` table:
 
 ```mssql
-INSERT [dbo].[DocsProjects] ([Id], [Name], [ShortName], [Format], [DefaultDocumentName], [NavigationDocumentName], [MinimumVersion], [DocumentStoreType], [ExtraProperties], [MainWebsiteUrl], [LatestVersionBranchName], [ParametersDocumentName]) VALUES (N'12f21123-e08e-4f15-bedb-ae0b2d939659', N'ABP (FileSystem)', N'abp', N'md', N'Index', N'docs-nav.json', NULL, N'FileSystem', N'{"Path":"C:\\Github\\abp\\docs"}', N'/', NULL, N'')
+INSERT [dbo].[DocsProjects] ([Id], [Name], [ShortName], [Format], [DefaultDocumentName], [NavigationDocumentName], [MinimumVersion], [DocumentStoreType], [ExtraProperties], [MainWebsiteUrl], [LatestVersionBranchName], [ParametersDocumentName], [ConcurrencyStamp]) VALUES (N'12f21123-e08e-4f15-bedb-ae0b2d939659', N'ABP (FileSystem)', N'abp', N'md', N'Index', N'docs-nav.json', NULL, N'FileSystem', N'{"Path":"C:\\Github\\abp\\docs"}', N'/', NULL, N'', N'12f21123e08e4f15bedbae0b2d939659')
 ```
 
 Add one of the sample projects above and run the application. In the menu you will see `Documents` link, click the menu link to open the documents page. 

modules/docs/app/VoloDocs.Web/Program.cs

@@ -1,6 +1,9 @@
 using System;
 using System.IO;
+using System.Threading.Tasks;
+using Microsoft.AspNetCore.Builder;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;
 using Serilog;
 using Serilog.Events;
@@ -9,7 +12,7 @@ namespace VoloDocs.Web
 {
     public class Program
     {
-        public static int Main(string[] args)
+        public async static Task<int> Main(string[] args)
         {
             Log.Logger = new LoggerConfiguration()
                 .MinimumLevel.Debug() //TODO: Should be configurable!
@@ -22,7 +25,14 @@ public static int Main(string[] args)
             try
             {
                 Log.Information("Starting web host.");
-                CreateHostBuilder(args).Build().Run();
+                var builder = WebApplication.CreateBuilder(args);
+                builder.Host
+                    .UseAutofac()
+                    .UseSerilog();
+                await builder.AddApplicationAsync<VoloDocsWebModule>();
+                var app = builder.Build();
+                await app.InitializeApplicationAsync();
+                await app.RunAsync();
                 return 0;
             }
             catch (Exception ex)
@@ -32,17 +42,8 @@ public static int Main(string[] args)
             }
             finally
             {
-                Log.CloseAndFlush();
+                await Log.CloseAndFlushAsync();
             }
         }
-
-        internal static IHostBuilder CreateHostBuilder(string[] args) =>
-            Host.CreateDefaultBuilder(args)
-                .ConfigureWebHostDefaults(webBuilder =>
-                {
-                    webBuilder.UseStartup<Startup>();
-                })
-                .UseAutofac()
-                .UseSerilog();
     }
 }

modules/docs/app/VoloDocs.Web/Properties/launchSettings.json

@@ -3,8 +3,8 @@
     "windowsAuthentication": false,
     "anonymousAuthentication": true,
     "iisExpress": {
-      "applicationUrl": "https://localhost:44333/",
-      "sslPort": 0
+      "applicationUrl": "https://localhost:5001/",
+      "sslPort": 5001
     }
   },
   "profiles": {
@@ -21,7 +21,7 @@
       "environmentVariables": {
         "ASPNETCORE_ENVIRONMENT": "Development"
       },
-      "applicationUrl": "https://localhost:44333/"
+      "applicationUrl": "https://localhost:5001/"
     }
   }
 }

modules/docs/src/Volo.Docs.Domain/Volo/Docs/FileSystem/Documents/FileSystemDocumentSource.cs

@@ -32,6 +32,8 @@ public async Task<Document> GetDocumentAsync(Project project, string documentNam
                 localDirectory = documentName.Substring(0, documentName.LastIndexOf('/'));
             }
 
+            version = File.GetLastWriteTime(path).ToString("yyyyMMddHHmmss");
+
             return new Document(GuidGenerator.Create(),
                 project.Id,
                 documentName,