private FileSystemSnapshot BuildNewFileSystemSnapshot(IList <IProject> projects,
FileSystemSnapshot oldSnapshot, FullPathChanges pathChanges, CancellationToken cancellationToken)
{
using (new TimeElapsedLogger("Computing snapshot delta from list of file changes")) {
// file name factory
var fileNameFactory = _fileSystemNameFactory;
if (ReuseFileNameInstances)
{
if (oldSnapshot.ProjectRoots.Count > 0)
{
fileNameFactory = new FileSystemTreeSnapshotNameFactory(oldSnapshot, fileNameFactory);
}
}
// Compute new snapshot
var newSnapshot = _fileSystemSnapshotBuilder.Compute(
fileNameFactory,
oldSnapshot,
pathChanges,
projects,
Interlocked.Increment(ref _version),
cancellationToken);
// Monitor all project roots for file changes.
var newRoots = newSnapshot.ProjectRoots
.Select(entry => entry.Directory.DirectoryName.FullPath);
_directoryChangeWatcher.WatchDirectories(newRoots);
return(newSnapshot);
}
}
private void RecomputeGraph()
{
_snapshotOperationProcessor.Execute(new OperationInfo <SnapshotComputedEventArgs> {
OnBeforeExecute = args => OnSnapshotComputing(args),
OnAfterExecute = args => OnSnapshotComputed(args),
Execute = args => {
Logger.Log("Collecting list of files from file system.");
Logger.LogMemoryStats();
var sw = Stopwatch.StartNew();
var files = new List <FullPathName>();
lock (_lock) {
ValidateKnownFiles();
files.AddRange(_addedFiles);
}
IFileSystemNameFactory fileNameFactory = _fileSystemNameFactory;
if (ReuseFileNameInstances)
{
if (_fileSystemSnapshot.ProjectRoots.Count > 0)
{
fileNameFactory = new FileSystemTreeSnapshotNameFactory(_fileSystemSnapshot, fileNameFactory);
}
}
var newSnapshot = _fileSystemSnapshotBuilder.Compute(fileNameFactory, files, Interlocked.Increment(ref _version));
// Monitor all the Chromium directories for changes.
var newRoots = newSnapshot.ProjectRoots
.Select(entry => entry.Directory.DirectoryName);
_directoryChangeWatcher.WatchDirectories(newRoots);
// Update current tree atomically
FileSystemTreeSnapshot previousSnapshot;
lock (_lock) {
previousSnapshot = _fileSystemSnapshot;
_fileSystemSnapshot = newSnapshot;
}
sw.Stop();
Logger.Log(">>>>>>>> Done collecting list of files: {0:n0} files in {1:n0} directories collected in {2:n0} msec.",
newSnapshot.ProjectRoots.Aggregate(0, (acc, x) => acc + CountFileEntries(x.Directory)),
newSnapshot.ProjectRoots.Aggregate(0, (acc, x) => acc + CountDirectoryEntries(x.Directory)),
sw.ElapsedMilliseconds);
Logger.LogMemoryStats();
return(new SnapshotComputedEventArgs {
PreviousSnapshot = previousSnapshot,
NewSnapshot = newSnapshot
});
}
});
}
private FileSystemTreeSnapshot ComputeNewSnapshot(FileSystemTreeSnapshot oldSnapshot, FullPathChanges pathChanges)
{
using (new TimeElapsedLogger("Computing snapshot delta from list of file changes")) {
// Get list of currently registered files.
var rootFiles = new List <FullPath>();
lock (_lock) {
ValidateKnownFiles();
rootFiles.AddRange(_registeredFiles);
}
// file name factory
var fileNameFactory = _fileSystemNameFactory;
if (ReuseFileNameInstances)
{
if (_fileSystemSnapshot.ProjectRoots.Count > 0)
{
fileNameFactory = new FileSystemTreeSnapshotNameFactory(_fileSystemSnapshot, fileNameFactory);
}
}
// Compute new snapshot
var newSnapshot = _fileSystemSnapshotBuilder.Compute(
fileNameFactory,
oldSnapshot,
pathChanges,
rootFiles,
Interlocked.Increment(ref _version));
// Monitor all the Chromium directories for changes.
var newRoots = newSnapshot.ProjectRoots
.Select(entry => entry.Directory.DirectoryName.FullPath);
_directoryChangeWatcher.WatchDirectories(newRoots);
return(newSnapshot);
}
}
