Adding missing file

src/ScriptCs/Repl.cs

@@ -0,0 +1,56 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.IO;
+using Common.Logging;
+using ScriptCs.Contracts;
+
+namespace ScriptCs
+{
+    public class Repl 
+    {
+        private static readonly string[] DefaultReferences = new[] { "System", "System.Core", "System.Data", "System.Data.DataSetExtensions", "System.Xml", "System.Xml.Linq" };
+        private static readonly string[] DefaultNamespaces = new[] { "System", "System.Collections.Generic", "System.Linq", "System.Text", "System.Threading.Tasks" };
+
+        private readonly IFileSystem _fileSystem;
+        private readonly IScriptEngine _scriptEngine;
+        private readonly ILog _logger;
+        private ScriptPackSession _scriptPackSession;
+        private IEnumerable<string> _references; 
+
+        public Repl(IFileSystem fileSystem, IScriptEngine scriptEngine, ILog logger)
+        {
+            _fileSystem = fileSystem;
+            _scriptEngine = scriptEngine;
+            _logger = logger;
+        }
+
+        public void Initialize(IEnumerable<string> paths, IEnumerable<IScriptPack> scriptPacks)
+        {
+            _references = DefaultReferences.Union(paths);
+            var bin = Path.Combine(_fileSystem.CurrentDirectory, "bin");
+
+            _scriptEngine.BaseDirectory = bin;
+
+            _logger.Debug("Initializing script packs");
+            var scriptPackSession = new ScriptPackSession(scriptPacks);
+
+            scriptPackSession.InitializePacks();
+            _scriptPackSession = scriptPackSession;
+
+        }
+
+        public void Terminate()
+        {
+            _logger.Debug("Terminating packs");
+            _scriptPackSession.TerminatePacks();
+        }
+
+        public void Execute(string script)
+        {
+            _scriptEngine.Execute(script, _references, DefaultNamespaces, _scriptPackSession);
+        }
+    }
+}