/// <summary>
/// Constructor
/// </summary>
internal AssemblyFoldersFromConfigCache(AssemblyFoldersFromConfig assemblyFoldersFromConfig, FileExists fileExists)
{
AssemblyFoldersFromConfig = assemblyFoldersFromConfig;
_fileExists = fileExists;
if (Environment.GetEnvironmentVariable("MSBUILDDISABLEASSEMBLYFOLDERSEXCACHE") != null)
{
_useOriginalFileExists = true;
}
else
{
_filesInDirectories = assemblyFoldersFromConfig.AsParallel()
.Where(assemblyFolder => FileUtilities.DirectoryExistsNoThrow(assemblyFolder.DirectoryPath))
.SelectMany(
assemblyFolder =>
Directory.GetFiles(assemblyFolder.DirectoryPath, "*.*", SearchOption.TopDirectoryOnly))
.ToImmutableHashSet(StringComparer.OrdinalIgnoreCase);
}
}
/// <summary>
/// Initialize this class if it hasn't been initialized yet.
/// </summary>
private void LazyInitialize()
{
if (_isInitialized)
{
return;
}
_isInitialized = true;
// Crack the search path just one time.
Match match = s_crackAssemblyFoldersFromConfigSentinel.Value.Match(this.searchPathElement);
_wasMatch = false;
if (match.Success)
{
_targetRuntimeVersion = match.Groups["TARGETRUNTIMEVERSION"].Value.Trim();
_assemblyFolderConfigFile = match.Groups["ASSEMBLYFOLDERCONFIGFILE"].Value.Trim();
if (_targetRuntimeVersion.Length != 0)
{
// Tolerate version keys that don't begin with "v" as these could come from user input
if (!_targetRuntimeVersion.StartsWith("v", StringComparison.OrdinalIgnoreCase))
{
_targetRuntimeVersion = _targetRuntimeVersion.Insert(0, "v");
}
_wasMatch = true;
bool useCache = Environment.GetEnvironmentVariable("MSBUILDDISABLEASSEMBLYFOLDERSEXCACHE") == null;
string key = "6f7de854-47fe-4ae2-9cfe-9b33682abd91" + searchPathElement;
if (useCache && _buildEngine != null)
{
_assemblyFoldersCache = _buildEngine.GetRegisteredTaskObject(key, RegisteredTaskObjectLifetime.Build) as AssemblyFoldersFromConfigCache;
}
if (_assemblyFoldersCache == null)
{
// This should never happen. Microsoft.Common.CurrentVersion.targets will not specify a AssemblyFoldersFromConfig search path
// if the specified (or default) file is not found.
ErrorUtilities.VerifyThrow(File.Exists(_assemblyFolderConfigFile),
$"The AssemblyFolders config file specified does not exist: {_assemblyFolderConfigFile}");
try
{
AssemblyFoldersFromConfig assemblyFolders = new AssemblyFoldersFromConfig(_assemblyFolderConfigFile, _targetRuntimeVersion, targetProcessorArchitecture);
_assemblyFoldersCache = new AssemblyFoldersFromConfigCache(assemblyFolders, fileExists);
if (useCache)
{
_buildEngine?.RegisterTaskObject(key, _assemblyFoldersCache, RegisteredTaskObjectLifetime.Build, true /* dispose early ok*/);
}
}
catch (SerializationException e)
{
_taskLogger.LogError(ResourceUtilities.GetResourceString("ResolveAssemblyReference.AssemblyFoldersConfigFileMalformed"), _assemblyFolderConfigFile, e.Message);
return;
}
}
fileExists = _assemblyFoldersCache.FileExists;
}
}
}