feat(back): Add backup service and run it when start.

5 files changed, 49 insertions, 0 deletions

diff --git a/Timeline/Configs/ApplicationConfiguration.cs b/Timeline/Configs/ApplicationConfiguration.cs
index c84327d7..64ab6f6c 100644
--- a/Timeline/Configs/ApplicationConfiguration.cs
+++ b/Timeline/Configs/ApplicationConfiguration.cs
@@ -5,6 +5,7 @@
         public const string WorkDirKey = "WorkDir";

         public const string DefaultWorkDir = "/timeline";

         public const string DatabaseFileName = "timeline.db";

+        public const string DatabaseBackupDirectoryName = "backup";

         public const string DisableFrontEndKey = "DisableFrontEnd";

         public const string FrontEndProxyOnlyKey = "FrontEndProxyOnly";

         public const string UseMockFrontEndKey = "UseMockFrontEnd";

diff --git a/Timeline/Program.cs b/Timeline/Program.cs
index c49f74b0..0540fbd1 100644
--- a/Timeline/Program.cs
+++ b/Timeline/Program.cs
@@ -5,6 +5,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Hosting;

 using System.Resources;

 using Timeline.Entities;

+using Timeline.Services;

 

 [assembly: NeutralResourcesLanguage("en")]

 

@@ -17,6 +18,10 @@ namespace Timeline
             var host = CreateWebHostBuilder(args).Build();

 

             var env = host.Services.GetRequiredService<IWebHostEnvironment>();

+

+            var databaseBackupService = host.Services.GetRequiredService<IDatabaseBackupService>();

+            databaseBackupService.BackupNow();

+

             if (env.IsProduction())

             {

                 using (var scope = host.Services.CreateScope())

diff --git a/Timeline/Services/DatabaseBackupService.cs b/Timeline/Services/DatabaseBackupService.cs
new file mode 100644
index 00000000..a76b2a0d
--- /dev/null
+++ b/Timeline/Services/DatabaseBackupService.cs
@@ -0,0 +1,35 @@
+using System.Globalization;

+using System.IO;

+

+namespace Timeline.Services

+{

+    public interface IDatabaseBackupService

+    {

+        void BackupNow();

+    }

+

+    public class DatabaseBackupService : IDatabaseBackupService

+    {

+        private readonly IPathProvider _pathProvider;

+        private readonly IClock _clock;

+

+        public DatabaseBackupService(IPathProvider pathProvider, IClock clock)

+        {

+            _pathProvider = pathProvider;

+            _clock = clock;

+        }

+

+        public void BackupNow()

+        {

+            var databasePath = _pathProvider.GetDatabaseFilePath();

+            if (File.Exists(databasePath))

+            {

+                var backupDirPath = _pathProvider.GetDatabaseBackupDirectory();

+                Directory.CreateDirectory(backupDirPath);

+                var fileName = _clock.GetCurrentTime().ToString("yyyy-MM-ddTHH-mm-ss", CultureInfo.InvariantCulture);

+                var path = Path.Combine(backupDirPath, fileName);

+                File.Copy(databasePath, path);

+            }

+        }

+    }

+}

diff --git a/Timeline/Services/PathProvider.cs b/Timeline/Services/PathProvider.cs
index ac7cd800..1baba5c0 100644
--- a/Timeline/Services/PathProvider.cs
+++ b/Timeline/Services/PathProvider.cs
@@ -8,6 +8,7 @@ namespace Timeline.Services
     {

         public string GetWorkingDirectory();

         public string GetDatabaseFilePath();

+        public string GetDatabaseBackupDirectory();

     }

 

     public class PathProvider : IPathProvider

@@ -32,5 +33,10 @@ namespace Timeline.Services
         {

             return Path.Combine(_workingDirectory, ApplicationConfiguration.DatabaseFileName);

         }

+

+        public string GetDatabaseBackupDirectory()

+        {

+            return Path.Combine(_workingDirectory, ApplicationConfiguration.DatabaseBackupDirectoryName);

+        }

     }

 }

diff --git a/Timeline/Startup.cs b/Timeline/Startup.cs
index 597fa4c3..a5eab4ad 100644
--- a/Timeline/Startup.cs
+++ b/Timeline/Startup.cs
@@ -64,6 +64,8 @@ namespace Timeline
 

             services.AddSingleton<IPathProvider, PathProvider>();

 

+            services.AddSingleton<IDatabaseBackupService, DatabaseBackupService>();

+

             services.AddAutoMapper(GetType().Assembly);

 

             services.AddTransient<IClock, Clock>();