/// <summary>
/// Gets information about the assembly.
/// See comments in UninstallAssembly for specifying the assembly name.
/// </summary>
/// <param name="assemblyName"></param>
/// <returns></returns>
private static string QueryAssemblyInfo(String assemblyName)
{
if (assemblyName == null)
{
throw new ArgumentException("Invalid name", "assemblyName");
}
AssemblyInfo aInfo = new AssemblyInfo();
aInfo.cchBuf = 1024;
// Get a string with the desired length
aInfo.currentAssemblyPath = new string('\0', aInfo.cchBuf);
IAssemblyCache ac = null;
int hr = GacUtils.CreateAssemblyCache(out ac, 0);
if (hr >= 0)
{
hr = ac.QueryAssemblyInfo((int)QueryAssemblyInfoFlags.DEFAULT, assemblyName, ref aInfo);
}
if (hr == -2147024894) //File not found - This is a common error which need not be represented as an exception(ruins debug experience, also).
{
return(null);
}
else if (hr < 0)
{
GacUtils.ThrowMarshalledException(hr);
}
return(aInfo.currentAssemblyPath);
}
/// <summary>
/// Installs an assembly into the GAC. Adds a reference to the installing applicaiton.
/// </summary>
/// <param name="assemblyPath">The path to the assembly to be installed</param>
/// <param name="flags">see AssemblyCommitFlags</param>
internal static void InstallAssembly(String assemblyPath, AssemblyCommitFlags flags)
{
IAssemblyCache ac = null;
int hr = 0;
hr = GacUtils.CreateAssemblyCache(out ac, 0);
if (hr >= 0)
{
hr = ac.InstallAssembly((int)flags, assemblyPath, null);
}
if (hr < 0)
{
GacUtils.ThrowMarshalledException(hr);
}
}
/// <summary>
/// Uninstalls the assembly, using the application as a reference.
/// AssemblyName has to be fully specified name.
/// A.k.a, for v1.0/v1.1 assemblies, it should be "name, Version=xx, Culture=xx, PublicKeyToken=xx".
/// For v2.0 assemblies, it should be "name, Version=xx, Culture=xx, PublicKeyToken=xx, ProcessorArchitecture=xx".
/// If assemblyName is not fully specified, a random matching assembly will be uninstalled.
/// </summary>
/// <param name="assemblyName"></param>
private static AssemblyCacheUninstallDisposition UninstallAssemblyImplementation(String assemblyName)
{
AssemblyCacheUninstallDisposition dispResult = AssemblyCacheUninstallDisposition.Uninstalled;
IAssemblyCache ac = null;
int hr = GacUtils.CreateAssemblyCache(out ac, 0);
if (hr >= 0)
{
hr = ac.UninstallAssembly(0, assemblyName, null, out dispResult);
}
if (hr < 0)
{
GacUtils.ThrowMarshalledException(hr);
}
return(dispResult);
}
