getDartFiles function
Returns all Dart files recursively from the rootDir.
Implementation
Iterable<File> getDartFiles(Directory rootDir, String ignore) {
var dartFilesGlob = Glob('**.dart');
var ignoreGlob = Glob(ignore, context: Context(current: rootDir.path));
var alwaysIgnoreGlob =
Glob(alwaysIgnore, context: Context(current: rootDir.path));
var dartFiles = dartFilesGlob
.listSync(root: rootDir.path, followLinks: false)
.whereType<File>()
.where((file) => !alwaysIgnoreGlob.matches(file.path))
.where((file) => !ignoreGlob.matches(file.path));
return dartFiles;
}