makeRunnerDir function
Make the runner directory and return the Directory object.
Handles cases where origin or dirPath ends with '/runner' or '/runner/'.
Implementation
Directory makeRunnerDir(String origin, [String? dirPath]) {
final basePath = dirPath ?? origin;
// Normalize the path to remove any trailing slashes
final normalizedPath = basePath.replaceAll(RegExp(r'[/\\]+$'), '');
// Check if the path already ends with 'runner'
final runnerDirPath =
normalizedPath.endsWith('/runner')
? normalizedPath
: '$normalizedPath/runner';
return Directory(runnerDirPath);
}