Ensure that version.txt is always read from repo root

filmor · BadSingleton · commit e5546cb5ce2e · 2022-07-18T11:35:34.000-04:00
Allows the project to be referenced in other .NET projects without adjusting its project file (#1853).
diff --git a/Directory.Build.props b/Directory.Build.props
@@ -6,7 +6,7 @@
     <AssemblyProduct>Python.NET</AssemblyProduct>
     <LangVersion>10.0</LangVersion>
     <IsPackable>false</IsPackable>
-    <FullVersion>$([System.IO.File]::ReadAllText("version.txt"))</FullVersion>
+    <FullVersion>$([System.IO.File]::ReadAllText($(MSBuildThisFileDirectory)version.txt))</FullVersion>
     <VersionPrefix>$(FullVersion.Split('-', 2)[0])</VersionPrefix>
     <VersionSuffix Condition="$(FullVersion.Contains('-'))">$(FullVersion.Split('-', 2)[1])</VersionSuffix>
   </PropertyGroup>
