ILRepack.Lib.MSBuild.Task

MSBuild task for ILRepack which is an open-source alternative to ILMerge.

Install via NuGet

  Install-Package ILRepack.Lib.MSBuild.Task

Supported build tools

• MSBuild

Usage

You need to install the NuGet package to merge all your project dependencies. If you want to customize the process, then you can create a file named ILRepack.targets in your project folder. You can create it like shown below.

Example "ILRepack.targets"

<?xml version="1.0" encoding="utf-8" ?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
    <!-- ILRepack -->
    <Target Name="ILRepacker" AfterTargets="Build" Condition="'$(Configuration)' == 'Release' and '$(IsCrossTargetingBuild)' != 'true'">
        <ItemGroup>
            <InputAssemblies Include="$(OutputPath)\ExampleAssemblyToMerge1.dll" />
            <InputAssemblies Include="$(OutputPath)\ExampleAssemblyToMerge2.dll" />
            <InputAssemblies Include="$(OutputPath)\ExampleAssemblyToMerge3.dll" />
        </ItemGroup>
    
        <ItemGroup>
            <!-- Must be a fully qualified name -->
            <DoNotInternalizeAssemblies Include="ExampleAssemblyToMerge3" />
        </ItemGroup>
    
        <ILRepack
            Parallel="true"
            Internalize="true"
            InternalizeExclude="@(DoNotInternalizeAssemblies)"
            InputAssemblies="@(InputAssemblies)"
            TargetKind="Dll"
            OutputFile="$(OutputPath)\$(AssemblyName).dll"
        />
    </Target>
    <!-- /ILRepack -->
</Project>

Configuration

You need to create the ILRepack.Config.props file in your project folder to configure the behavior of ILRepack.Lib.MSBuild.Task.

<?xml version="1.0" encoding="utf-8" ?>
<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
  </PropertyGroup>
</Project>

You can specify the following options inside the <PropertyGroup> element to configure the behavior of the ILRepack task.

Specify your custom Targets file path

If you don't want to add ILRepack.targets file in your project folder, then you can specify your custom targets file path as shown below.

<ILRepackTargetsFile>$(SolutionDir)ILRepack.targets</ILRepackTargetsFile>

Specify the Key File to use for signing

You can specify the path of the SNK file you want to use for signing your assembly as shown below. This configuration option only applies if you are using the default targets file provided in the NuGet package.

<KeyFile>$(ProjectDir)ILRepack.snk</KeyFile>

Specify whether to clear the directory after merging

If you are using the default targets file, then you may notice that it clears the Output directory after merging dependencies. You can turn this functionality off by setting ClearOutputDirectory to False as shown below.

<ClearOutputDirectory>False</ClearOutputDirectory>

Task options

Option	Description
AllowDuplicateResources	Allows duplicating resources in the output assembly.
AllowMultiple	Allows multiple attributes (if type allows).
AllowedDuplicateNamespaces	Allows the specified namespaces from being duplicated into input assemblies. Multiple namespaces are delimited by ",".
AttributeFile	Take assembly attributes from the given assembly file.
CopyAttributes	Copy assembly attributes.
DebugInfo	Enable/disable symbol file generation.
DelaySign	Set the key file, but don't sign the assembly.
ExcludeInternalizeSerializable	Do not internalize types marked as Serializable.
InputAssemblies	List of assemblies that will be merged.
Internalize	Set all types but the ones from the first assembly 'internal'.
InternalizeAssembly	Internalize only specific assemblies (list of assembly names without path or extension).
InternalizeExclude	If Internalize is set to true, any which match these regular expressions will not be internalized. If Internalize is false, then this property is ignored.
KeyContainer	Specifies a key container to use.
KeyFile	Specifies a key file to sign the output assembly.
LibraryPath	List of paths to use as "include directories" when attempting to merge assemblies.
LogFile	Specifies a log file to output log information.
MergeIlLinkerFiles	Merge IL Linker file XML resources from Microsoft assemblies (optional). Same-named XML resources ('ILLink.*.xml') will be combined during merging.
NoRepackRes	Does not add the embedded resource 'ILRepack.List' with all merged assembly names.
OutputFile	Output name for the merged assembly.
LineIndexation	Stores file:line debug information as type/method attributes (requires PDB).
Parallel	Use as many CPUs as possible to merge the assemblies.
PauseBeforeExit	Pause execution once completed (good for debugging).
RenameInternalized	Rename all internalized types (to be used when Internalize is enabled).
RepackDropAttribute	Name of an attribute (optional). Members in input assemblies marked with this attribute will be dropped during merging.
TargetKind	Target assembly kind (Exe|Dll|WinExe|SameAsPrimaryAssembly)
TargetPlatformDirectory	Path of Directory where the target platform is located.
TargetPlatformVersion	Target platform (v1, v1.1, v2, v4 supported).
Union	Merges types with identical names into one.
Verbose	Additional debug information during the merge that will be outputted to LogFile.
Wildcards	Allows (and resolves) file wildcards (e.g., *.dll) in input assemblies.
XmlDocumentation	Merge assembly XML documentation.
ZeroPeKind	Allows assemblies with Zero PeKind (but obviously only IL will get merged).