Converting Picasa ini dates to directory dates

One issue I faced in the process of migrating from Picasa to Adobe Lightroom is that Picasa stores event dates in .picasa.ini files. I had spent many hours setting correct dates in my events (folders) and wanted to import them. So I wrote the following C# script (should work for Windows and OS X – I ran in via Mono).

Update: This code is on github @ https://github.com/DavidVeksler/EmbedPicasaProperties

The below will not be updated.

using System;
using System.IO;
 
namespace ConvertPicasaToFolderDates
{
	class MainClass
	{
		private const string IniFileName = @".picasa.ini";
 
		private static void Main(string[] args)
		{
			string startFolder = @"/Users/davidv/Pictures/";
 
			Console.WriteLine(startFolder);
 
			UpdateFoldersInPath(startFolder);
 
		}
 
		private static void UpdateFoldersInPath(string folder)
		{
			string[] directories = Directory.GetDirectories(folder);
 
			if (directories.Length > 0)
				Console.WriteLine("{0} folders in {1}", directories.Length, folder);
 
			foreach (string directory in directories)
			{
				try
				{
					string iniPath = Path.Combine(directory, IniFileName);
 
					if (File.Exists(iniPath))
					{
						Console.WriteLine("Parse " + iniPath);
 
						foreach (string line in File.ReadAllLines(iniPath))
						{
							// date=29586.603900
							if (!line.StartsWith("date=")) continue;
 
							string dateString = line.Substring(5);
 
							DateTime date = ConverPicasaDateToDateTime(dateString);
 
							DateTime originalTime = Directory.GetCreationTime(directory);
 
							if (originalTime != date && date.Year < 2010)
							{
								Console.WriteLine("{0} to {1}", originalTime, date);
								Directory.SetCreationTime(directory, date);
// (For Mono SetCreationTime did not work correctly, so use SetLastWriteTime.)
								Directory.SetLastWriteTime(directory,date);
							}
 
							break;
						}
					}
				}
				catch (Exception ex)
				{
					Console.WriteLine(ex);
				}
 
				try
				{
					UpdateFoldersInPath(directory);
				}
				catch (Exception ex)
				{
					Console.WriteLine(ex);
				}
			}
		}
 
		// convert =29586.603900 to date time format
		private static DateTime ConverPicasaDateToDateTime(string dateString)
		{
			var startDate = new DateTime(1900, 1, 1);
 
			DateTime date = startDate.AddDays(Convert.ToDouble(dateString) -2);
 
			Console.WriteLine("new date: " + date);
 
			return date;
		}
	}
}