UpdateFiles(FileSetTarget fileSet)
{
Guard.NotNull(fileSet, nameof(fileSet));
// Get file specs from required list target(s)
// TODO Handle patterns not just paths
var patterns = Graph.RequiredBy(fileSet).OfType <ListTarget>().SelectMany(t => t.Values);
var paths = patterns.Select(p => Path.GetFullPath(p)).Where(p => File.Exists(p));
// Get current set of files
var newFiles = paths.Select(p => Graph.File(p)).ToList();
// Adjust dependencies
var toRemove = fileSet.Files.Except(newFiles).ToList();
var toAdd = newFiles.Except(fileSet.Files).ToList();
foreach (var file in toRemove)
{
Graph.RemoveDependency(file, fileSet);
}
foreach (var file in toAdd)
{
Graph.Dependency(file, fileSet);
}
// Update timestamp if the set of files has changed
var changed = toAdd.Any() || toRemove.Any();
if (changed)
{
fileSet.SetTimestamp(DateTime.Now);
}
}
UpdateTimestamp(FileSetTarget fileSet)
{
Guard.NotNull(fileSet, nameof(fileSet));
var newestDependencyTimestamp = Graph.RequiredBy(fileSet).Max(t => t.Timestamp);
if (fileSet.Timestamp == null)
{
fileSet.SetTimestamp(newestDependencyTimestamp ?? DateTime.Now);
}
else if (newestDependencyTimestamp.HasValue && newestDependencyTimestamp.Value > fileSet.Timestamp)
{
fileSet.SetTimestamp(newestDependencyTimestamp.Value);
}
}
