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app_version.dart
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app_version.dart
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import 'dart:convert';
import 'package:flutter/foundation.dart';
import 'package:http/http.dart' as http;
import 'package:package_info_plus/package_info_plus.dart';
import 'package:pub_semver/pub_semver.dart' as semver;
import '../logs/logs.dart';
/// Check app versions.
class AppVersion {
final PackageInfo _packageInfo;
AppVersion(this._packageInfo);
/// The application version that is currently running.
///
/// Example: `1.0.0`.
String running() => _packageInfo.version;
Future<bool> updateAvailable() async {
final runningVersion = semver.Version.parse(_packageInfo.version);
final latestVersion = semver.Version.parse(await latest());
return (runningVersion < latestVersion) ? true : false;
}
/// Cached variable for `latest()`.
String _latest = '';
/// Gets the latest version from the GitHub tag.
Future<String> latest() async {
if (_latest != '') return _latest;
final uri = Uri.parse(
'https://api.github.com/repos/merrit/nyrna/releases',
);
final response = await http.get(
uri,
headers: {'Accept': 'application/vnd.github.v3+json'},
);
if (response.statusCode == 200) {
final json = jsonDecode(response.body) as List;
final data = List<Map>.from(json);
final tag = data.firstWhere((element) => element['prerelease'] == false);
final tagName = tag['tag_name'] as String;
_latest = parseVersionTag(tagName);
} else {
log.w('Issue getting latest version info from GitHub, '
'status code: ${response.statusCode}\n');
}
return _latest;
}
/// Returns the version number without the leading `v` or any postfix.
///
/// Examples:
/// `v1.2.3` becomes `1.2.3`.
/// `v1.2.3-beta` becomes `1.2.3`.
@visibleForTesting
String parseVersionTag(String tag) {
final version = tag.split('v').last.split('-').first;
return version;
}
}