public GetDocumentCommandWorker(GetDocumentCommandContext context)
{
_context = context ?? throw new ArgumentNullException(nameof(context));
_reporter = context.Reporter;
}
protected override int Execute()
{
var thisAssembly = typeof(GetDocumentCommand).Assembly;
var toolsDirectory = ToolsDirectory.Value();
var packagedAssemblies = Directory
.EnumerateFiles(toolsDirectory, "*.dll")
.Except(new[] { Path.GetFullPath(thisAssembly.Location) })
.ToDictionary(path => Path.GetFileNameWithoutExtension(path), path => new AssemblyInfo(path));
// Explicitly load all assemblies we need first to preserve target project as much as possible. This
// executable is always run in the target project's context (either through location or .deps.json file).
foreach (var keyValuePair in packagedAssemblies)
{
try
{
keyValuePair.Value.Assembly = Assembly.Load(new AssemblyName(keyValuePair.Key));
}
catch
{
// Ignore all failures because missing assemblies should be loadable from tools directory.
}
}
#if NETCOREAPP2_1
AssemblyLoadContext.Default.Resolving += (loadContext, assemblyName) =>
{
var name = assemblyName.Name;
if (!packagedAssemblies.TryGetValue(name, out var info))
{
return(null);
}
var assemblyPath = info.Path;
if (!File.Exists(assemblyPath))
{
throw new InvalidOperationException(
$"Referenced assembly '{name}' was not found in '{toolsDirectory}'.");
}
return(loadContext.LoadFromAssemblyPath(assemblyPath));
};
#elif NETFRAMEWORK
AppDomain.CurrentDomain.AssemblyResolve += (source, eventArgs) =>
{
var assemblyName = new AssemblyName(eventArgs.Name);
var name = assemblyName.Name;
if (!packagedAssemblies.TryGetValue(name, out var info))
{
return(null);
}
var assembly = info.Assembly;
if (assembly != null)
{
// Loaded already
return(assembly);
}
var assemblyPath = info.Path;
if (!File.Exists(assemblyPath))
{
throw new InvalidOperationException(
$"Referenced assembly '{name}' was not found in '{toolsDirectory}'.");
}
return(Assembly.LoadFile(assemblyPath));
};
#else
#error Target frameworks need to be updated.
#endif
// Now safe to reference the application's code.
try
{
var assemblyPath = AssemblyPath.Value();
var context = new GetDocumentCommandContext
{
AssemblyPath = assemblyPath,
AssemblyName = Path.GetFileNameWithoutExtension(assemblyPath),
FileListPath = _fileListPath.Value(),
OutputDirectory = _output.Value(),
ProjectName = ProjectName.Value(),
Reporter = Reporter,
};
return(new GetDocumentCommandWorker(context).Process());
}
catch (Exception ex)
{
Reporter.WriteError(ex.ToString());
return(2);
}
}
