public static async Task<IEnumerable<ModifiedFileResponse>> GetFileChangesAsync(Solution newSolution, Solution oldSolution, string newFileDirectory, bool wantTextChanges)
{
var changes = new Dictionary<string, ModifiedFileResponse>();
var solutionChanges = newSolution.GetChanges(oldSolution);
foreach (var projectChange in solutionChanges.GetProjectChanges())
{
foreach (var changedDocumentId in projectChange.GetAddedDocuments())
{
var document = newSolution.GetDocument(changedDocumentId);
var source = await document.GetTextAsync();
var modifiedFileResponse = new ModifiedFileResponse(document.Name);
var change = new LinePositionSpanTextChange();
change.NewText = source.ToString();
var newPath = Path.Combine(newFileDirectory, document.Name);
modifiedFileResponse.FileName = newPath;
modifiedFileResponse.Changes = new[] { change };
changes[newPath] = modifiedFileResponse;
// This is a little weird. The added document doesn't have a filepath
// and we need one so that future operations on this document work
var id = DocumentId.CreateNewId(document.Project.Id);
var version = VersionStamp.Create();
var documentInfo = DocumentInfo.Create(id, document.Name, filePath: newPath, loader: TextLoader.From(TextAndVersion.Create(source, version)));
var workspace = newSolution.Workspace as OmnisharpWorkspace;
workspace.RemoveDocument(changedDocumentId);
workspace.AddDocument(documentInfo);
}
foreach (var changedDocumentId in projectChange.GetChangedDocuments())
{
var changedDocument = newSolution.GetDocument(changedDocumentId);
ModifiedFileResponse modifiedFileResponse;
var filePath = changedDocument.FilePath;
if (!changes.TryGetValue(filePath, out modifiedFileResponse))
{
modifiedFileResponse = new ModifiedFileResponse(filePath);
changes[filePath] = modifiedFileResponse;
}
if (!wantTextChanges)
{
var changedText = await changedDocument.GetTextAsync();
modifiedFileResponse.Buffer = changedText.ToString();
}
else
{
var originalDocument = oldSolution.GetDocument(changedDocumentId);
IEnumerable<TextChange> textChanges;
textChanges = await changedDocument.GetTextChangesAsync(originalDocument);
var linePositionSpanTextChanges = await LinePositionSpanTextChange.Convert(originalDocument, textChanges);
modifiedFileResponse.Changes = modifiedFileResponse.Changes != null
? modifiedFileResponse.Changes.Union(linePositionSpanTextChanges)
: linePositionSpanTextChanges;
}
}
}
return changes.Values;
}
public async Task<RenameResponse> Rename(RenameRequest request)
{
var response = new RenameResponse();
var document = _workspace.GetDocument(request.FileName);
if (document != null)
{
var sourceText = await document.GetTextAsync();
var position = sourceText.Lines.GetPosition(new LinePosition(request.Line - 1, request.Column - 1));
var symbol = await SymbolFinder.FindSymbolAtPositionAsync(document, position);
Solution solution = _workspace.CurrentSolution;
if (symbol != null)
{
try
{
solution = await Renamer.RenameSymbolAsync(solution, symbol, request.RenameTo, _workspace.Options);
}
catch (ArgumentException e)
{
response.ErrorMessage = e.Message;
}
}
var changes = new Dictionary<string, ModifiedFileResponse>();
var solutionChanges = solution.GetChanges(_workspace.CurrentSolution);
foreach (var projectChange in solutionChanges.GetProjectChanges())
{
foreach (var changedDocumentId in projectChange.GetChangedDocuments())
{
var changedDocument = solution.GetDocument(changedDocumentId);
ModifiedFileResponse modifiedFileResponse;
if (!changes.TryGetValue(changedDocument.FilePath, out modifiedFileResponse))
{
modifiedFileResponse = new ModifiedFileResponse(changedDocument.FilePath);
changes[changedDocument.FilePath] = modifiedFileResponse;
}
if (!request.WantsTextChanges)
{
var changedText = await changedDocument.GetTextAsync();
modifiedFileResponse.Buffer = changedText.ToString();
}
else
{
var originalDocument = _workspace.CurrentSolution.GetDocument(changedDocumentId);
var textChanges = await changedDocument.GetTextChangesAsync(originalDocument);
var linePositionSpanTextChanges = await LinePositionSpanTextChange.Convert(originalDocument, textChanges);
modifiedFileResponse.Changes = modifiedFileResponse.Changes != null
? modifiedFileResponse.Changes.Union(linePositionSpanTextChanges)
: linePositionSpanTextChanges;
}
}
}
if (request.ApplyTextChanges)
{
// Attempt to update the workspace
if (_workspace.TryApplyChanges(solution))
{
response.Changes = changes.Values;
}
}
else
{
response.Changes = changes.Values;
}
}
return response;
}
