LINQPad program to remove 'svn:mime-type' properties with 'application/octet-stream' value from '.cs' files.

SvnFixBinaryCsFiles.cs

void Main()
{
	var dir = "C:\\Code\\Repo\\";
	var onlyChanged = true;
	
	if (onlyChanged)
	{
		Console.WriteLine("Getting files from SVN... ");
		var changed = GetSvnStatus(dir)
			.Where(t => t.Item1 == 'A' || t.Item1 == 'M')
			.Select(t => t.Item2)
			.Select(p => { Console.WriteLine(" - {0}", p); return p; })
			.Where(p => Path.GetExtension(p) == ".cs")
			.Where(p => System.IO.File.Exists(p))
			.ToList();
		Console.WriteLine("Done!");
		
		Console.WriteLine("{0} .cs files changed or added, checking content type...", changed.Count);
		foreach(var changedPath in changed)
		{
			File(changedPath);
		}
		Console.WriteLine("Done!");
	}
	else
	{
		Dir(dir);
	}
}

void Dir(string path)
{
	foreach(var file in Directory.EnumerateFiles(path, "*.cs"))
	{
		File(file);
	}
	
	foreach(var dir in Directory.EnumerateDirectories(path))
	{
		Dir(dir);
	}
}

void File(string path)
{
	var prop = GetSvnProp("svn:mime-type", path);
	
	if (prop == "application/octet-stream")
	{
		Console.WriteLine(" - Fixing {0}", path);
		RemoveSvnProp("svn:mime-type", path);
	}
}

string GetSvnProp(string prop, string path)
{
	using (var process = SvnRun("propget", prop, path))
	{
		return process.StandardOutput.ReadToEnd().Trim();
	}
}

IEnumerable<Tuple<char, string>> GetSvnStatus(string dir)
{
	if (dir.EndsWith(Path.DirectorySeparatorChar.ToString())
		|| dir.EndsWith(Path.AltDirectorySeparatorChar.ToString()))
	{
		dir = dir.Substring(0, dir.Length-1);
	}

	var regex = new Regex(@"^(?<change>.)(\+|\s)+(?<file>.*)$");
	
	using (var process = SvnRun("status", dir))
	{
		string line;
		
		while((line = process.StandardOutput.ReadLine()) != null)
		{
			//Console.WriteLine("RAW: {0}", line);
			var m = regex.Match(line);
			if (!m.Success)
			{
				line.Dump("Regex failed to parse this svn status line");
			}
			else
			{
				yield return Tuple.Create(m.Groups["change"].Value[0], m.Groups["file"].Value);
			}
		}
	}
}

void RemoveSvnProp(string prop, string path)
{
	SvnRun("propdel", prop, path).Dispose();
}

Process SvnRun(params string[] args)
{
	return SvnRun((IEnumerable<string>)args);
}

Process SvnRun(IEnumerable<string> args)
{
	args = args.Select(a => '"' + a + '"');
	var argString = string.Join(" ", args);
	
	var psi = new System.Diagnostics.ProcessStartInfo(@"svn", argString)
	{
		RedirectStandardOutput = true,
		WindowStyle = ProcessWindowStyle.Hidden,
		CreateNoWindow = true,
		UseShellExecute = false,
	};
	
	return Process.Start(psi);
}