init

DataPRO/Modules/InstallerCustomActions/.svn/pristine/86/865c0fecd9b7a0f1eda993eacfd8b82efc6eb7b4.svn-base

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+using System;
+using Common.Properties;
+using Microsoft.Win32;
+
+
+namespace Installer.Common
+{
+    public static class PreviousInstall
+    {
+        public static string GetMostRecentlyInstalledSubKeyName(Version installingVersion, out string mostRecentlyInstalledLowerVersion)
+        {
+            mostRecentlyInstalledLowerVersion = string.Empty;
+            var mostRecentlyInstalledSubKeyName = string.Empty;
+
+            var rk = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
+            var sk1 = rk.OpenSubKey(Settings.Default.RegistrySoftwareInstalledProducts);
+            var maxProductVersion = new Version(0, 0, 0);
+            if (sk1 == null) return string.Empty;
+            foreach (var productSubKeyName in sk1.GetSubKeyNames())
+            {
+                var newKey = sk1.OpenSubKey(productSubKeyName);
+                if (newKey == null) continue;
+                var newSubKey = newKey.OpenSubKey(Settings.Default.RegistryInstallProperties);
+                if (newSubKey == null) continue;
+                var val = newSubKey.GetValue(Settings.Default.RegistryDisplayName, -1, RegistryValueOptions.None).ToString();
+                if ((val == "-1") || (val != Settings.Default.RegistryDataPRO)) continue;
+                var strThisVersion = newSubKey.GetValue(Settings.Default.RegistryDisplayVersion, -1, RegistryValueOptions.None).ToString();
+                var thisVersion = new Version(strThisVersion);
+                if (thisVersion.IsGreaterThan(maxProductVersion) && thisVersion.IsLessThan(installingVersion))
+                {
+                    maxProductVersion = thisVersion;
+                    mostRecentlyInstalledLowerVersion = thisVersion.ToString();
+                    mostRecentlyInstalledSubKeyName = productSubKeyName;
+                }
+            }
+            return mostRecentlyInstalledSubKeyName;
+        }
+        public static bool IsGreaterThan(this Version leftString, Version rightString)
+        {
+            return leftString.CompareTo(rightString) > 0;
+        }
+        public static bool IsLessThan(this Version leftString, Version rightString)
+        {
+            return leftString.CompareTo(rightString) < 0;
+        }
+        public static string GetMostRecentlyInstalledPath(string mostRecentlyInstalledSubKeyName)
+        {
+            var log = new System.Diagnostics.EventLog();
+            log.Source = "DataPROInstaller";
+
+            var mostRecentlyInstalledPath = string.Empty;
+
+            var rk = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, RegistryView.Registry64);
+
+            //Look first in Products
+            var sk1 = rk.OpenSubKey(Settings.Default.RegistrySoftwareInstalledProducts);
+            if (sk1 != null)
+            {
+                log.WriteEntry("Looking in Products");
+                foreach (var productSubKeyName in sk1.GetSubKeyNames())
+                {
+                    if (productSubKeyName != mostRecentlyInstalledSubKeyName) continue;
+                    var newKey = sk1.OpenSubKey(productSubKeyName);
+                    if (newKey == null) continue;
+                    newKey = newKey.OpenSubKey(Settings.Default.RegistryInstallProperties);
+                    if (newKey == null) continue;
+                    var val = newKey.GetValue(Settings.Default.RegistryInstallLocation, -1, RegistryValueOptions.None).ToString();
+                    if ((val == "-1") || (string.IsNullOrWhiteSpace(val))) continue;
+                    mostRecentlyInstalledPath = val;
+                    if (mostRecentlyInstalledPath.Contains(Settings.Default.DTSSuite))
+                    {
+                        mostRecentlyInstalledPath += Settings.Default.RegistryDataPRO + "\\";
+                    }
+                    log.WriteEntry("GetMostRecentlyInstalledPath returned " + mostRecentlyInstalledPath + " from Products");
+                    return mostRecentlyInstalledPath;
+                }
+            }
+            //Look in Components
+            log.WriteEntry("Looking in Components");
+            sk1 = rk.OpenSubKey(Settings.Default.RegistrySoftwareInstalledComponents);
+            if (sk1 == null) return string.Empty;
+            foreach (var productSubKeyName in sk1.GetSubKeyNames())
+            {
+                var newKey = sk1.OpenSubKey(productSubKeyName);
+                if (newKey == null) continue;
+                var val = newKey.GetValue(mostRecentlyInstalledSubKeyName, -1, RegistryValueOptions.None).ToString();
+                if ((val == "-1") || (!val.EndsWith(Settings.Default.RegistryDataPROExeConfig))) continue;
+                mostRecentlyInstalledPath = val.Substring(0, val.Length - Settings.Default.RegistryDataPROExeConfig.Length);
+                if (mostRecentlyInstalledPath.Contains(Settings.Default.DTSSuite))
+                {
+                    mostRecentlyInstalledPath += Settings.Default.RegistryDataPRO + "\\";
+                }
+                log.WriteEntry("GetMostRecentlyInstalledPath returned " + mostRecentlyInstalledPath + " from Components");
+                return mostRecentlyInstalledPath;
+            }
+
+            log.WriteEntry("GetMostRecentlyInstalledPath returned " + mostRecentlyInstalledPath);
+            return mostRecentlyInstalledPath;
+        }
+    }
+}