Files
OneDriveArchiver/OneDriveArchiver/IoHelper.cs

70 lines
3.1 KiB
C#

#region Using Statements
using System;
using System.IO;
#endregion
namespace OneDriveArchiver
{
public static class IoHelper
{
/// <summary>
/// Archives a one drive file. It takes the file creation date and month,
/// creates the necessary folder structure (if necessary) i.e. Year\Month and
/// moves the file to the (new) target folder. The Sync engine of OneDrive then
/// will sync the changes being made back to the cloud. Base Path is the path where
/// the file was found. So the subfolder will start in the same directory.
/// </summary>
/// <param name="appName"></param>
/// <param name="filename">Filename</param>
public static void ArchiveOneDriveFile(string appName, string filename)
{
try
{
if (string.IsNullOrEmpty(filename)) throw new ArgumentException("filename cannot be null.");
// do a check if the file is empty...
var fi = new FileInfo(filename);
if (fi.Length == 0)
{
Console.WriteLine($"OneDriveArchiver: Deleting file {filename} as it has zero bytes content.");
File.Delete(filename);
return;
}
var dateModified = File.GetLastWriteTime(filename);
var fileMonth = dateModified.Month.ToString("D2");
var fileYear = dateModified.Year.ToString();
var basePath = Path.GetDirectoryName(filename);
var fileNameWithOutPath = Path.GetFileName(filename);
// check if we have to create either year or month folder...
// start with parent year folder...
var fullYearFolderPath = Path.Combine(basePath ?? throw new InvalidOperationException(), fileYear);
var fullMonthFolderPath = Path.Combine(Path.Combine(basePath, fileYear), fileMonth);
// create the directories if not existing...
if (!Directory.Exists(fullYearFolderPath)) Directory.CreateDirectory(fullYearFolderPath);
if (!Directory.Exists(fullMonthFolderPath)) Directory.CreateDirectory(fullMonthFolderPath);
var newFullFileName = Path.Combine(fullMonthFolderPath, fileNameWithOutPath);
// check if the file at the designated new archive location exists. If so, remove the existing file
// and replace it with the new copy.
if (File.Exists(newFullFileName))
{
Console.WriteLine($"{appName}: archive file exists at designated folder. Removing the old file for copying the new one instead.");
File.Delete(newFullFileName);
}
// then move the file...
File.Move(filename, newFullFileName);
}
catch (Exception ex)
{
Console.WriteLine(
$"Exception while backing up OneDrive file. Message = {ex.Message}, Stacktrace = {ex.StackTrace}");
}
}
}
}