A generic file system abstraction for Dart.
Like dart:io, package:file supplies a rich Dart-idiomatic API for accessing
a file system.
Unlike dart:io, package:file:
- Can be used to implement custom file systems.
- Comes with an in-memory implementation out-of-the-box, making it super-easy to test code that works with the file system.
- Allows using multiple file systems simultaneously. A file system is a first-class object. Instantiate however many you want and use them all.
Implement your own custom file system:
import 'package:file/file.dart';
class FooBarFileSystem implements FileSystem { ... }Use the in-memory file system:
import 'package:file/memory.dart';
var fs = MemoryFileSystem();Use the local file system (requires dart:io access):
import 'package:file/local.dart';
var fs = const LocalFileSystem();