/// <summary>
/// Gets the paths.
/// </summary>
/// <param name="searchOptions">The search options to use.</param>
public static IEnumerable <string> GetPaths(PathSearchOptions searchOptions, CancellationToken cancellationToken)
{
if (!Directory.Exists(searchOptions.RootDirectory))
{
throw new System.IO.DirectoryNotFoundException($"The specified root directory '{searchOptions.RootDirectory}' does not exist. Please provide a valid directory.");
}
// If no Search Pattern was provided, then find everything.
if (string.IsNullOrEmpty(searchOptions.SearchPattern))
{
searchOptions.SearchPattern = "*";
}
// Get the paths according to the search parameters
var paths = GetPathsUsingAlphaFs(searchOptions);
// Return each of the paths, replacing the Root Directory if specified to do so.
foreach (var path in paths)
{
// If we've been asked to stop searching, just return.
if (cancellationToken.IsCancellationRequested)
{
yield break;
}
if (searchOptions.RootDirectoryReplacement == null)
{
yield return(path);
}
else
{
yield return(path.Replace(searchOptions.RootDirectory, searchOptions.RootDirectoryReplacement));
}
}
}
private static IEnumerable <string> GetPathsUsingAlphaFs(PathSearchOptions searchOptions)
{
DirectoryEnumerationOptions options = (DirectoryEnumerationOptions)searchOptions.TypesToGet |
DirectoryEnumerationOptions.ContinueOnException | DirectoryEnumerationOptions.SkipReparsePoints;
if (searchOptions.SearchOption == SearchOption.AllDirectories)
{
options |= DirectoryEnumerationOptions.Recursive;
}
var paths = Directory.EnumerateFileSystemEntries(searchOptions.RootDirectory, searchOptions.SearchPattern, options);
return(paths);
}
/// <summary>
/// Gets the paths.
/// </summary>
/// <param name="searchOptions">The search options to use.</param>
public static IEnumerable <string> GetPaths(PathSearchOptions searchOptions)
{
// If no Search Pattern was provided, then find everything.
if (string.IsNullOrEmpty(searchOptions.SearchPattern))
{
searchOptions.SearchPattern = "*";
}
// Get the paths according to the search parameters
var paths = new List <string>();
switch (searchOptions.TypesToGet)
{
case FileSystemTypes.All:
paths = Directory.GetFileSystemEntries(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption).ToList();
break;
case FileSystemTypes.Directories:
paths = Directory.GetDirectories(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption).ToList();
break;
case FileSystemTypes.Files:
paths = Directory.GetFiles(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption).ToList();
break;
}
// Return each of the paths, replacing the Root Directory if specified to do so.
foreach (var path in paths)
{
if (searchOptions.RootDirectoryReplacement == null)
{
yield return(path);
}
else
{
yield return(path.Replace(searchOptions.RootDirectory, searchOptions.RootDirectoryReplacement));
}
}
}
private static IEnumerable <string> GetPathsUsingSystemIo(PathSearchOptions searchOptions)
{
// Get the paths according to the search parameters
var paths = Enumerable.Empty <string>();
switch (searchOptions.TypesToGet)
{
default:
case FileSystemTypes.All:
paths = Directory.GetFileSystemEntries(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption);
break;
case FileSystemTypes.Directories:
paths = Directory.GetDirectories(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption);
break;
case FileSystemTypes.Files:
paths = Directory.GetFiles(searchOptions.RootDirectory, searchOptions.SearchPattern, searchOptions.SearchOption);
break;
}
return(paths);
}
