using System; using System.IO; namespace TweetLib.Core.Utils{ public static class FileUtils{ public static void CreateDirectoryForFile(string file){ string dir = Path.GetDirectoryName(file); if (dir == null){ throw new ArgumentException("Invalid file path: "+file); } else if (dir.Length > 0){ Directory.CreateDirectory(dir); } } public static bool CheckFolderWritePermission(string path){ string testFile = Path.Combine(path, ".test"); try{ Directory.CreateDirectory(path); using(File.Create(testFile)){} File.Delete(testFile); return true; }catch{ return false; } } public static bool FileExistsAndNotEmpty(string path){ try{ return new FileInfo(path).Length > 0; }catch{ return false; } } } }