Implement first pass at platform export tool

CHANGELOG.md

@@ -6,6 +6,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Changed
+
+- Add command to dump current platform DB to directory
+
 ## [8.1.1] - 2023-12-01
 
 ### Changed

Rdmp.Core/CommandExecution/AtomicCommands/ExecuteCommandExportDatabaseToDir.cs

@@ -0,0 +1,52 @@
+// Copyright (c) The University of Dundee 2018-2023
+// This file is part of the Research Data Management Platform (RDMP).
+// RDMP is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+// RDMP is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
+// You should have received a copy of the GNU General Public License along with RDMP. If not, see <https://www.gnu.org/licenses/>.
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Linq.Expressions;
+using Rdmp.Core.Curation.Data;
+using Rdmp.Core.Repositories;
+
+namespace Rdmp.Core.CommandExecution.AtomicCommands;
+
+// Dump all compatible objects from the current platform database(s) into a
+// YAML/JSON directory for SQL-free operation.
+public class ExecuteCommandExportDatabaseToDir : BasicCommandExecution
+{
+    private readonly IBasicActivateItems _activator;
+    private readonly DirectoryInfo _target;
+
+    public ExecuteCommandExportDatabaseToDir(IBasicActivateItems activator, [DemandsInitialization("Where the platform directory should be created")] string target)
+    {
+        _target = new DirectoryInfo(target);
+        _activator = activator;
+    }
+
+    private readonly List<string> ignoreList = new() { "Rdmp.Core.DataQualityEngine.Data.DQEGraphAnnotation", "Rdmp.Core.DataQualityEngine.Data.Evaluation" };
+
+    public override void Execute()
+    {
+        base.Execute();
+        var repo = new YamlRepository(_target);
+        foreach (var t in repo.GetCompatibleTypes())
+        {
+            if (ignoreList.Contains(t.FullName)) continue;
+            try
+            {
+                Console.WriteLine(t.FullName);
+                foreach (var o in _activator.GetRepositoryFor(t).GetAllObjects(t))
+                    repo.SaveToDatabase(o);
+            }
+            catch(Exception)
+            {
+                Console.WriteLine($"Unable to find repo for {t.FullName}");
+            }
+
+        }
+    }
+}