private void DeleteFiles(string solutionPath, RoslynMethodLister methodLister, HashSet <string> files)
{
var workspace = Workspace.LoadSolution(solutionPath);
var projects = methodLister.GetProjects(workspace);
foreach (var project in projects)
{
foreach (var documentId in project.DocumentIds)
{
var document = workspace.CurrentSolution.GetDocument(documentId);
if (files.Contains(document.FilePath))
{
workspace.RemoveDocument(documentId);
File.Delete(document.FilePath);
// special processing for aspx/ ascx and other non-c# compilable files - they are not presented in project.DocumentIds
// so deleting file here and it needs to remove ref to the file from project manually
var mainFile = document.FilePath.TrimEndString(".cs"); // aspx or ascx
if (files.Contains(mainFile))
{
File.Delete(mainFile);
}
}
}
}
}
private void DeleteMethodsIfNeeded(
IEnumerable <string> typeMethods,
DeletionEvaluator deletionEvaluator,
IDocument document,
ref CompilationUnitSyntax newDocumentRoot,
RoslynMethodLister methodLister,
ref int methodsDeleted)
{
if (typeMethods == null || _options.Act == Act.DeleteWholeTypesOnly)
{
return;
}
foreach (var method in typeMethods)
{
bool needToDelete = deletionEvaluator.NeedToDeleteMethod(method);
if (needToDelete)
{
methodsDeleted++;
if (_options.Act == Act.Delete && !_options.DryRun)
{
// Transform the syntax tree of the document and get the root of the new tree
newDocumentRoot = DeleteMethod(newDocumentRoot ?? (CompilationUnitSyntax)document.GetSyntaxRoot(), methodLister, deletionEvaluator, method);
}
}
else if (!deletionEvaluator.MethodFoundInWeavedLibs(method) && _options.Verbose)
{
_logger.Log(string.Format("not found in dlls, skipping {0}", method), displayTime: false);
}
if (needToDelete || _options.Verbose)
{
_logger.Log(string.Format("{0} {1}", needToDelete ? "--" : "++", method), displayTime: false);
}
}
}
private static bool NeedToDeleteWholeProperty(RoslynMethodLister methooLister, DeletionEvaluator evaluator, SyntaxNodeWrapper currentMethodNodeFromNewRoot, MethodType methodType)
{
var prop = (PropertyDeclarationSyntax)currentMethodNodeFromNewRoot.Node;
if (prop.HasGetter() && prop.HasSetter())
{
MethodType otherAccessorType = methodType == MethodType.PropertyGetter ? MethodType.PropertySetter : MethodType.PropertyGetter;
var otherAccessorStr = methooLister.GetMethodDeclarationString(new SyntaxNodeWrapper {
MethodType = otherAccessorType, Node = currentMethodNodeFromNewRoot.Node
});
bool needToDelete = evaluator.NeedToDeleteMethod(otherAccessorStr);
return(needToDelete);
}
return(true);
}
public void RunCleanup()
{
int typeCount = 0;
int methodCount = 0;
int typesDeleted = 0;
int methodsDeleted = 0;
string action = _options.DryRun ? "to be deleted" : "deleted";
var methodLister = new RoslynMethodLister(_options.PathToSolution, _options.ProjectIncludeFilter, _options.ProjectExcludeFilter, _options.NamespaceFilter);
var deletionEvaluator = new DeletionEvaluator(new CodeCleanupRepository(msg => _logger.Log(msg)), new WeawingDataProvider(_options.WeavedLibsDir, msg => _logger.Log(msg)));
var filesToDelete = new HashSet <string>();
methodLister.ProcessCSharpSolutionDocuments(
(latestForkedSolution, document, root) =>
{
// don't perform deletion in designer files since their content depends on parent files (like dbml or aspx). Cleaner doesn't deal with dbml or aspx/ascx content, it processes only classes
if (document.FilePath.EndsWith(".designer.cs", StringComparison.OrdinalIgnoreCase))
{
return(null);
}
_logger.Log(string.Format("\r\n\r\nProcessing document {0} \r\n", document.FilePath));
if (_filesToExcludeBySubstring.Any(document.FilePath.ToLower().Contains))
{
_logger.Log(string.Format("Skipping processing (matches fileExcludeFilter) {0} \r\n", document.FilePath));
return(null);
}
var typeNames = GetDocumentClassesAndStructs(document);
var stringifiedMethods = methodLister.GetDocumentMethodStrings(document).ToArray();
methodCount += stringifiedMethods.Length;
var methodsGroupedByType = stringifiedMethods.GroupBy(Stringifier.GetTypePart).ToArray();
CompilationUnitSyntax newDocumentRoot = null;
int typesDeletedFromDocumentCount = 0;
foreach (var typeName in typeNames)
{
typeCount++;
var typeMethods = methodsGroupedByType.FirstOrDefault(g => g.Key == typeName);
if (deletionEvaluator.NeedToDeleteType(typeName))
{
DeleteType(typeName, action, document, ref newDocumentRoot, typeMethods, ref typesDeleted, ref methodsDeleted);
typesDeletedFromDocumentCount++;
}
else
{
DeleteMethodsIfNeeded(typeMethods, deletionEvaluator, document, ref newDocumentRoot, methodLister, ref methodsDeleted);
}
}
// 1. delete file and dependent files if no types left in this file (there can be types other than logged, e.g. enums)
// 2. for --dryRun the deletion is not actually performed so the condition must be another: number of scheduled for deletion types equals to the number of types in the document
var allDocumentTypesCount = GetAllDocumentTypesCount(newDocumentRoot ?? (CompilationUnitSyntax)document.GetSyntaxRoot());
if ((!_options.DryRun && allDocumentTypesCount == 0) ||
(_options.DryRun && typesDeletedFromDocumentCount == allDocumentTypesCount))
{
ScheduleFilesToDelete(filesToDelete, document);
}
// if the document was modified (types or methods deleted)
if (newDocumentRoot != null)
{
latestForkedSolution = latestForkedSolution.UpdateDocument(document.Id, newDocumentRoot);
return(latestForkedSolution);
}
return(null);
});
if (!_options.DryRun)
{
DeleteFiles(_options.PathToSolution, methodLister, filesToDelete);
}
_logger.Log(string.Format("\r\n\r\n\r\n\r\nPROCESSING COMPLETED. Total type count = {0}; Types {1} = {2};. Total method count = {3}; Methods {1} = {4};\r\n", typeCount, action, typesDeleted, methodCount, methodsDeleted));
}
private static CompilationUnitSyntax DeleteMethod(CompilationUnitSyntax originalRoot, RoslynMethodLister methodLister, DeletionEvaluator evaluator, string method)
{
// needs for second and subsequent deletions from one document (cuz the document allways different).
var currentMethodNodeFromNewRoot = methodLister.FindInDoc(originalRoot, method);
// property deletion - currently implemented only whole property deletion. Separate accessor deletion requires string manipulation since there is no separate syntax node for getter/setter (only AccessorList for both)
var methodType = currentMethodNodeFromNewRoot.MethodType;
if ((methodType == MethodType.PropertyGetter || methodType == MethodType.PropertySetter) &&
!NeedToDeleteWholeProperty(methodLister, evaluator, currentMethodNodeFromNewRoot, methodType))
{
return(originalRoot);
}
return(RemoveNode(originalRoot, currentMethodNodeFromNewRoot.Node));
}
