public static List <FileInfo> Find(string rootDirectory, FileFinderOptions options)
{
var result = new List <FileInfo>();
var directory = new DirectoryInfo(rootDirectory);
Scan(directory, options, result);
return(result);
}
private static void Scan(DirectoryInfo sourceDirectory, FileFinderOptions options, ICollection <FileInfo> result)
{
if (!sourceDirectory.Exists)
{
throw new Exception($"Source directory does not exist or could not be found: {sourceDirectory}");
}
var fileInfos = new List <FileInfo>();
foreach (var fileInfo in sourceDirectory.GetFiles())
{
var file = fileInfo;
if (options.Excludes.Any(pattern => Matches(pattern, file.FullName)))
{
continue;
}
fileInfos.Add(fileInfo);
}
var directoryInfos = sourceDirectory.GetDirectories();
if ((!fileInfos.Any() && !directoryInfos.Any()) || options.Excludes.Any(pattern => Matches(pattern, sourceDirectory.FullName)))
{
return;
}
foreach (var subDirectory in directoryInfos)
{
Scan(subDirectory, options, result);
}
foreach (var file in fileInfos)
{
try
{
var fileName = file.FullName;
if (options.Excludes.Any(pattern => Matches(pattern, fileName)))
{
continue;
}
if (options.Includes.Any(pattern => Matches(pattern, fileName)))
{
result.Add(file);
}
}
catch (Exception exception)
{
throw new Exception($"{file.FullName} failed to scan: {exception.Message}");
}
}
}