add support for entry assembly version placeholder

Pilz/AssemblyAppVersion.cs

@@ -1,9 +1,20 @@
-namespace Pilz;
+using System.Reflection;
+
+namespace Pilz;
 
 [AttributeUsage(AttributeTargets.Assembly)]
-public class AssemblyAppVersionAttribute(string version, int build, AppChannel channel) : Attribute
+public class AssemblyAppVersionAttribute : Attribute
 {
-    public AppVersion Version { get; } = new(new Version(version), build, channel);
+    public const string EntryAssemblyVersionKey = "{EntryAssemblyVersion}";
+
+    public AppVersion Version { get; }
+
+    public AssemblyAppVersionAttribute(string version, int build, AppChannel channel)
+    {
+        if (version.Contains(EntryAssemblyVersionKey))
+            version = version.Replace(EntryAssemblyVersionKey, Assembly.GetEntryAssembly().GetName().Version.ToString());
+        Version = new(new Version(version), build, channel);
+    }
 
     public AssemblyAppVersionAttribute(string version) : this(version, 1)
     {

Pilz/Pilz.csproj

@@ -5,7 +5,7 @@
     <LangVersion>latest</LangVersion>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>annotations</Nullable>
-    <Version>2.3.4</Version>
+    <Version>2.3.5</Version>
   </PropertyGroup>
   
   <ItemGroup>