45 lines
1.2 KiB
Dart
45 lines
1.2 KiB
Dart
import 'dart:io';
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import 'package:flutter_cache_manager/flutter_cache_manager.dart';
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import 'package:path_provider/path_provider.dart';
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class CustomCacheManager {
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static const key = 'libCachedImageData';
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static final _repo = CacheObjectProvider(databaseName: key);
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static final instance = CacheManager(
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Config(
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key,
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stalePeriod: const Duration(days: 30),
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maxNrOfCacheObjects: 10000,
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repo: _repo,
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),
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);
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static Future<void> removeOrphanedCacheFiles() async {
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final tempDir = await getTemporaryDirectory();
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final cacheDir = Directory('${tempDir.path}/$key');
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if (!await cacheDir.exists()) {
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return;
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}
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final allFiles =
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cacheDir.listSync(recursive: true).whereType<File>().toList();
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await _repo.open();
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final cachedObjects = await _repo.getAllObjects();
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final dbFiles = cachedObjects.map((e) => e.relativePath).toSet();
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final orphanedFiles = allFiles.where((file) {
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final relativePath = file.path.replaceFirst('${cacheDir.path}/', '');
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return !dbFiles.contains(relativePath);
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}).toList();
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final deletions = orphanedFiles.map((file) => file.delete()).toList();
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try {
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await Future.wait(deletions);
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// ignore: empty_catches
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} catch (e) {}
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}
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}
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