protected async Task <Document> GetOrCreateSuppressionsDocumentAsync(CancellationToken c)
{
int index = 1;
var suppressionsFileName = s_globalSuppressionsFileName + Fixer.DefaultFileExtension;
var suppressionsFilePath = GetSuppressionsFilePath(suppressionsFileName);
Document suppressionsDoc = null;
while (suppressionsDoc == null)
{
var hasDocWithSuppressionsName = false;
foreach (var document in _project.Documents)
{
var filePath = document.FilePath;
var fullPath = !string.IsNullOrEmpty(filePath) ? Path.GetFullPath(filePath) : filePath;
if (fullPath == suppressionsFilePath)
{
// Existing global suppressions file, see if this file only has global assembly attributes.
hasDocWithSuppressionsName = true;
var t = await document.GetSyntaxTreeAsync(c).ConfigureAwait(false);
var r = await t.GetRootAsync(c).ConfigureAwait(false);
if (r.ChildNodes().All(n => Fixer.IsAttributeListWithAssemblyAttributes(n)))
{
suppressionsDoc = document;
break;
}
}
}
if (suppressionsDoc == null)
{
if (hasDocWithSuppressionsName || File.Exists(suppressionsFilePath))
{
index++;
suppressionsFileName = s_globalSuppressionsFileName + index.ToString() + Fixer.DefaultFileExtension;
suppressionsFilePath = GetSuppressionsFilePath(suppressionsFileName);
}
else
{
// Create an empty global suppressions file.
suppressionsDoc = _project.AddDocument(suppressionsFileName, string.Empty);
}
}
}
return(suppressionsDoc);
}