Added additional Pollination version check (#133)

LadybugTools_Engine/Compute/InstallPythonEnv_LBT.cs

@@ -39,9 +39,9 @@ public static PythonEnvironment InstallPythonEnv_LBT(bool run = false, bool rein
         {
             // check if referenced Python is installed
             string referencedExecutable = @"C:\Program Files\ladybug_tools\python\python.exe";
-            if (!File.Exists(referencedExecutable))
+
+            if (!Query.IsPollinationInstalled())
             {
-                Base.Compute.RecordError($"Could not find referenced python executable at {referencedExecutable}. Please install Pollination try again.");
                 return null;
             }
 

LadybugTools_Engine/Query/IsPollinationInstalled.cs

@@ -0,0 +1,75 @@
+/*
+ * This file is part of the Buildings and Habitats object Model (BHoM)
+ * Copyright (c) 2015 - 2023, the respective contributors. All rights reserved.
+ *
+ * Each contributor holds copyright over their respective contributions.
+ * The project versioning (Git) records all such contribution source information.
+ *
+ *
+ * The BHoM is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation, either version 3.0 of the License, or
+ * (at your option) any later version.
+ *
+ * The BHoM 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 Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this code. If not, see <https://www.gnu.org/licenses/lgpl-3.0.html>.
+ */
+
+using BH.oM.Base.Attributes;
+using BH.oM.LadybugTools;
+using System.Linq;
+using System.Collections.Generic;
+using System.ComponentModel;
+using BH.oM.Python;
+using System.IO;
+using System;
+using System.Diagnostics;
+
+namespace BH.Engine.LadybugTools
+{
+    public static partial class Query
+    {
+        [Description("Return True if Pollination is installed to the currently supported version.")]
+        [Input("targetPollinationVersion", "The target Pollination version that BHoM currently supports. Default is 1.35.14 which has an uninstaller ProductVersion of 1.38.104, which is the number that is checked against on the uninstaller that comes bundled with Pollincation.")]
+        [Input("includeBuildNumber", "If true, the build number (the third number in the X.X.X ProductVersion) will be included in the comparison.")]
+        [Output("bool", "True if Pollination is installed to the currently supported version.")]
+        public static bool IsPollinationInstalled(string targetPollinationVersion = "1.38.104", bool includeBuildNumber = false)
+        {
+            // check if referenced Python is installed
+            string referencedExecutable = @"C:\Program Files\ladybug_tools\python\python.exe";
+            if (!File.Exists(referencedExecutable))
+            {
+                Base.Compute.RecordError($"Could not find referenced python executable at {referencedExecutable}. Please install Pollination version {targetPollinationVersion} and try again.");
+                return false;
+            }
+
+            // obtain version of pollination installed
+            string referencedUninstaller = @"C:\Program Files\ladybug_tools\uninstall.exe";
+            FileVersionInfo versionInfo = FileVersionInfo.GetVersionInfo(referencedUninstaller);
+            if (includeBuildNumber && (versionInfo.ProductVersion != targetPollinationVersion))
+            {
+                Base.Compute.RecordError($"Pollination version installed ({versionInfo.ProductVersion}) is not the same as the version required for this code to function correctly ({targetPollinationVersion}).");
+                return false;
+            }
+
+            // check that version matches the target version
+            int major = int.Parse(targetPollinationVersion.Split('.')[0]);
+            int minor = int.Parse(targetPollinationVersion.Split('.')[1]);
+            if (versionInfo.ProductMajorPart != major || versionInfo.ProductMinorPart != minor)
+            {
+                if (versionInfo.ProductVersion != targetPollinationVersion)
+                {
+                    Base.Compute.RecordError($"Pollination version installed ({versionInfo.ProductVersion}) is not the same as the version required for this code to function correctly ({targetPollinationVersion}).");
+                    return false;
+                }
+            }
+
+            return true;
+        }
+    }
+}