BUTR/Bannerlord.BUTRLoader

<!--EXTERNAL_PROPERTIES: BANNERLORD_GAME_DIR;BANNERLORD_STABLE_DIR;BANNERLORD_BETA_DIR-->
<Project>

  <Target Name="WarningsForEnvs" BeforeTargets="BeforeCompile">
    <Warning Condition="$(BANNERLORD_GAME_DIR) == '' AND $(BANNERLORD_STABLE_DIR) == '' AND $(BANNERLORD_BETA_DIR) == ''" Text="Environment variable 'BANNERLORD_GAME_DIR' is not set!"></Warning>
    <Warning Condition="$(BANNERLORD_GAME_DIR) == '' AND $(BANNERLORD_STABLE_DIR) == ''" Text="Environment variable 'BANNERLORD_STABLE_DIR' is not set!"></Warning>
    <Warning Condition="$(BANNERLORD_GAME_DIR) == '' AND $(BANNERLORD_BETA_DIR) == ''" Text="Environment variable 'BANNERLORD_BETA_DIR' is not set!"></Warning>
  </Target>

  <UsingTask TaskName="GZip" TaskFactory="RoslynCodeTaskFactory" AssemblyFile="$(MSBuildToolsPath)\Microsoft.Build.Tasks.Core.dll">
    <ParameterGroup>
      <Files ParameterType="Microsoft.Build.Framework.ITaskItem[]"  Required="true" />
      <Result ParameterType="Microsoft.Build.Framework.ITaskItem[]" Output="true" />
    </ParameterGroup>
    <Task>
      <Using Namespace="System.IO" />
      <Using Namespace="System.IO.Compression" />
      <Code Type="Fragment" Language="cs">
        <![CDATA[
if (Files.Length > 0)
{
    Result = new TaskItem[Files.Length];
    for (var i = 0; i < Files.Length; i++)
    {
        ITaskItem item = Files[i];
        string sourcePath = item.GetMetadata("FullPath");
        string sourceLink = item.GetMetadata("Link");
        string sourceItemSpec = item.ItemSpec;
              
        string destinationSuffix = ".gz";
        string sourceDirectory = Path.GetDirectoryName(sourcePath);
        string destinationPath = Path.Combine(sourceDirectory, sourceLink + destinationSuffix);
        
        string destinationItemDirectory = Path.GetDirectoryName(sourceItemSpec);
        string destinationItemSpec = Path.Combine(destinationItemDirectory, sourceLink + destinationSuffix);

        Log.LogMessage(MessageImportance.Normal, $"EmbeddedResource Src: {sourceItemSpec}");
              
        using (var sourceStream = File.OpenRead(sourcePath))
        using (var destinationStream = File.OpenWrite(destinationPath))
        using (var destinationGZip = new GZipStream(destinationStream, CompressionLevel.Optimal))
        {
            sourceStream.CopyTo(destinationGZip);
        }
              
        var destinationItem = new TaskItem(destinationItemSpec);
        
        Log.LogMessage(MessageImportance.Normal, $"EmbeddedResource GZip: {destinationItem.ItemSpec}");
              
        Result[i] = destinationItem;
    }
}
  ]]>
      </Code>
    </Task>
  </UsingTask>

</Project>