예제 #1
0
        private Task ProcessFiles()
        {
            return(Task.Run(async() =>
            {
                var fileInfos = new DirectoryInfo(FilePath).GetFiles(FilePattern);

                foreach (var fileInfo in fileInfos)
                {
                    var newNumLines = await GetLineCount(fileInfo.FullName);
                    var oldFileInfoPair = FileLineMap.FirstOrDefault(fi => fi.Key.Name == fileInfo.Name);

                    if (!oldFileInfoPair.Equals(default(KeyValuePair <FileInfo, int>)) && oldFileInfoPair.Key.LastWriteTime != fileInfo.LastWriteTime)
                    {
                        // update the # of lines (other FileInfo properties will be refreshed in RemoveDeletedFiles)
                        if (FileLineMap.TryUpdate(oldFileInfoPair.Key, newNumLines, oldFileInfoPair.Value))
                        {
                            OutputFunction.Invoke($"Changed: {fileInfo.Name}, {newNumLines - oldFileInfoPair.Value}");
                        }
                    }
                    // new file
                    else
                    {
                        if (oldFileInfoPair.Key?.Name != fileInfo.Name && FileLineMap.TryAdd(fileInfo, newNumLines))
                        {
                            OutputFunction.Invoke($"Created: {fileInfo.Name}, {newNumLines}");
                        }
                    }
                }

                // no need to wait for this
                Task.Factory.StartNew(RemoveDeletedFiles, CancellationToken);
            },
                            CancellationToken));
        }