Update Check

butterflow-ui.setup/Product.wxs

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <Wix xmlns="http://schemas.microsoft.com/wix/2006/wi">
-  <Product Id="*" Name="butterflow-ui" Language="1033" Version="1.0.2" Manufacturer="butterflow-ui @ github" UpgradeCode="bba9d512-377a-467e-920a-cbcf36ffc072">
+  <Product Id="*" Name="butterflow-ui" Language="1033" Version="1.0.3" Manufacturer="butterflow-ui @ github" UpgradeCode="bba9d512-377a-467e-920a-cbcf36ffc072">
     <Package Id="*" InstallerVersion="200" Compressed="yes" InstallScope="perMachine" />
 
     <MajorUpgrade DowngradeErrorMessage="A newer version of [ProductName] is already installed." />

butterflow-ui/AboutWindow.xaml

@@ -57,6 +57,7 @@
                 </StackPanel>
             </Grid>
             <Separator Margin="0,10" />
+            <TextBlock Text="{x:Static butterflow_ui:OctokitWrapper.CurrentVersionStatusDescription}" TextAlignment="Center" Margin="0,10" />
             <Button Name="btnOK" MaxWidth="50" Content="{x:Static loc:Localization.OKLabel}" Click="btnOK_Click"/>
         </StackPanel>
     </DockPanel>

butterflow-ui/Localization/Localization.Designer.cs

@@ -195,6 +195,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is behind the github repository and should be updated..
+        /// </summary>
+        public static string BehindVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("BehindVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to ButterflowUI Configuration File.
         /// </summary>
@@ -249,6 +258,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is up to date with the github repository..
+        /// </summary>
+        public static string CurrentVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("CurrentVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Custom Rate.
         /// </summary>
@@ -258,6 +276,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository..
+        /// </summary>
+        public static string CustomVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("CustomVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Developers and Contributors.
         /// </summary>
@@ -789,6 +816,15 @@ namespace butterflow_ui.Localization {
             }
         }
         
+        /// <summary>
+        ///   Looks up a localized string similar to Github failed to respond with the current version. This could be because of rate limits or a network failure..
+        /// </summary>
+        public static string UnknownVersionStatusDescription {
+            get {
+                return ResourceManager.GetString("UnknownVersionStatusDescription", resourceCulture);
+            }
+        }
+        
         /// <summary>
         ///   Looks up a localized string similar to Version.
         /// </summary>

butterflow-ui/Localization/Localization.resx

@@ -372,4 +372,16 @@
   <data name="SupportedFileTypesLabel" xml:space="preserve">
     <value>Supported File Types</value>
   </data>
+  <data name="BehindVersionStatusDescription" xml:space="preserve">
+    <value>The current version is behind the github repository and should be updated.</value>
+  </data>
+  <data name="CurrentVersionStatusDescription" xml:space="preserve">
+    <value>The current version is up to date with the github repository.</value>
+  </data>
+  <data name="CustomVersionStatusDescription" xml:space="preserve">
+    <value>The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository.</value>
+  </data>
+  <data name="UnknownVersionStatusDescription" xml:space="preserve">
+    <value>Github failed to respond with the current version. This could be because of rate limits or a network failure.</value>
+  </data>
 </root>

butterflow-ui/OctokitWrapper.cs

@@ -0,0 +1,139 @@
+using csmic;
+using Octokit;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Reflection;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace butterflow_ui
+{
+    /// <summary>
+    /// An wrapper for the Octokit.net class. This class is used to extract functionality for
+    /// checking github for updates to butterflow-ui installation.
+    /// </summary>
+    public static class OctokitWrapper
+    {
+        #region Members
+
+        /// <summary> The RegEx string for matching . </summary>
+        private const string REGEX_VERSION = @"(?<Major>\d+ ?)\.(?<Minor>\d+ ?)\.(?<Patch>\d+ ?)";
+
+        /// <summary> The version status of the current installation. </summary>
+        private static VersionStatus versionStatus = VersionStatus.unknown;
+
+        #endregion
+
+        #region Properties
+
+        /// <summary> Gets the current version status of this installation. </summary>
+        /// <value> The current version status of this installation. </value>
+        public static VersionStatus CurrentVersionStatus
+        {
+            get
+            {
+                return versionStatus;
+            }
+        }
+
+        /// <summary> Gets information describing the current version status. </summary>
+        /// <value> Information describing the current version status. </value>
+        public static string CurrentVersionStatusDescription
+        {
+            get
+            {
+                switch (CurrentVersionStatus)
+                {
+                    case VersionStatus.current:
+                        return Localization.Localization.CurrentVersionStatusDescription;
+                    case VersionStatus.behind:
+                        return Localization.Localization.BehindVersionStatusDescription;
+                    case VersionStatus.custom:
+                        return Localization.Localization.CustomVersionStatusDescription;
+                    case VersionStatus.unknown:
+                    default:
+                        return Localization.Localization.UnknownVersionStatusDescription;
+                }
+            }
+        }
+
+        #endregion
+
+        #region Constructor
+
+        /// <summary> Static constructor. </summary>
+        static OctokitWrapper()
+        {
+            versionStatus = GetVersionStatus();
+        }
+
+        #endregion
+
+        #region Methods
+
+        /// <summary> Gets version status from github. </summary>
+        /// <returns> The current version status. </returns>
+        private static VersionStatus GetVersionStatus()
+        {
+            var interpreter = new InputInterpreter();
+            var client = new GitHubClient(new ProductHeaderValue("butterflow-ui"));
+            var releases = client.Repository.Release.GetAll("wagesj45", "butterflow-ui").Result;
+
+            if (releases.Any())
+            {
+                var latest = releases.First();
+                decimal latestMajor = 0, latestMinor = 0, latestPatch = 0, currentMajor = 0, currentMinor = 0, currentPatch = 0;
+
+                var regex = new Regex(REGEX_VERSION);
+                foreach (Match match in regex.Matches(latest.TagName))
+                {
+                    latestMajor = interpreter.ComputeExpression(match.Groups["Major"].Value);
+                    latestMinor = interpreter.ComputeExpression(match.Groups["Minor"].Value);
+                    latestPatch = interpreter.ComputeExpression(match.Groups["Patch"].Value);
+                }
+
+                foreach (Match match in regex.Matches(Assembly.GetExecutingAssembly().GetName().Version.ToString()))
+                {
+                    currentMajor = interpreter.ComputeExpression(match.Groups["Major"].Value);
+                    currentMinor = interpreter.ComputeExpression(match.Groups["Minor"].Value);
+                    currentPatch = interpreter.ComputeExpression(match.Groups["Patch"].Value);
+                }
+
+                if (latestMajor == currentMajor && latestMinor == currentMinor && latestPatch == currentPatch)
+                {
+                    return VersionStatus.current;
+                }
+
+                if (latestMajor >= currentMajor && latestMinor >= currentMinor && latestPatch >= currentPatch)
+                {
+                    return VersionStatus.behind;
+                }
+
+                return VersionStatus.custom;
+            }
+
+            return VersionStatus.unknown;
+        }
+
+        #endregion
+
+        #region Subclasses
+
+        /// <summary> Values that represent version status of the current installation of butterflow-ui. </summary>
+        public enum VersionStatus
+        {
+            /// <summary> The current version is up to date with the github repository. </summary>
+            current,
+            /// <summary> The current version is behind the github repository and should be updated. </summary>
+            behind,
+            /// <summary> The current version is ahead of the github repository, or is a custom version of butterflow-ui that cannot be compared to the github repository. </summary>
+            custom,
+            /// <summary> Github failed to respond with the current version. This could be because of rate limits or a network failure. </summary>
+            unknown
+        }
+
+        #endregion
+    }
+}

butterflow-ui/Properties/AssemblyInfo.cs

@@ -51,5 +51,5 @@ using System.Windows;
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("1.0.2.*")]
+[assembly: AssemblyVersion("1.0.3.*")]
 [assembly: AssemblyFileVersion("1.0.0.0")]

butterflow-ui/butterflow-ui.csproj

@@ -45,6 +45,9 @@
     <Reference Include="Gu.Wpf.Media, Version=0.5.0.2, Culture=neutral, processorArchitecture=MSIL">
       <HintPath>packages\Gu.Wpf.Media.0.5.0.2\lib\net45\Gu.Wpf.Media.dll</HintPath>
     </Reference>
+    <Reference Include="Octokit, Version=0.31.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>packages\Octokit.0.31.0\lib\net45\Octokit.dll</HintPath>
+    </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data" />
     <Reference Include="System.Xml" />
@@ -72,6 +75,7 @@
     <Compile Include="FlowFilterType.cs" />
     <Compile Include="InverseBoolConverter.cs" />
     <Compile Include="InverseBoolVisibilityConverter.cs" />
+    <Compile Include="OctokitWrapper.cs" />
     <Compile Include="OptionsConfigurationFile.cs" />
     <Compile Include="OptionsWindow.xaml.cs">
       <DependentUpon>OptionsWindow.xaml</DependentUpon>

butterflow-ui/packages.config

@@ -2,4 +2,5 @@
 <packages>
   <package id="csmic" version="1.1.4" targetFramework="net471" />
   <package id="Gu.Wpf.Media" version="0.5.0.2" targetFramework="net471" />
+  <package id="Octokit" version="0.31.0" targetFramework="net471" />
 </packages>