chore: import upstream snapshot with attribution

2026-07-13 13:02:50 +08:00
commit 0fc60fdcb1
5008 changed files with 910633 additions and 0 deletions
@@ -0,0 +1,66 @@
+/*
+ * QUANTCONNECT.COM - Democratizing Finance, Empowering Individuals.
+ * Lean Algorithmic Trading Engine v2.0. Copyright 2014 QuantConnect Corporation.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+*/
+
+using System;
+using System.Collections.Generic;
+using System.IO;
+using System.Threading.Tasks;
+using QuantConnect.Util;
+
+namespace QuantConnect.ToolBox
+{
+    /// <summary>
+    /// Helper method that provides and cleans given temporary paths
+    /// </summary>
+    public static class TemporaryPathProvider
+    {
+        private static readonly Queue<string> TemporaryPaths = new Queue<string>();
+
+        // Gets a new temporary path
+        public static string Get()
+        {
+            var newPath = Path.Combine(Path.GetTempPath(), Guid.NewGuid().ToStringInvariant(null));
+            lock (TemporaryPaths)
+            {
+                TemporaryPaths.Enqueue(newPath);
+            }
+            return newPath;
+        }
+
+        /// <summary>
+        /// Recursively deletes all the given temporary paths
+        /// </summary>
+        public static void Delete()
+        {
+            List<string> paths;
+            lock (TemporaryPaths)
+            {
+                paths = TemporaryPaths.ToList(s => s);
+                TemporaryPaths.Clear();
+            }
+            Parallel.ForEach(paths, path =>
+            {
+                try
+                {
+                    Directory.Delete(path, recursive: true);
+                }
+                catch
+                {
+                    // pass
+                }
+            });
+        }
+    }
+}