blob: d689a22b3660e2203a1f0605e4e6cf2610da84d2 [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
import 'dart:async';
import 'package:pub_semver/pub_semver.dart';
import '../entrypoint.dart';
import '../validator.dart';
/// Validates that a package's flutter constraint doesn't contain an upper bound
class FlutterConstraintValidator extends Validator {
FlutterConstraintValidator(Entrypoint entrypoint) : super(entrypoint);
static const explanationUrl =
Future validate() async {
final environment = entrypoint.root.pubspec.fields['environment'];
if (environment is Map) {
final flutterConstraint = environment['flutter'];
if (flutterConstraint is String) {
final constraint = VersionConstraint.parse(flutterConstraint);
if (constraint is VersionRange && constraint.max != null) {
final replacement = constraint.min == null
? 'You can replace the constraint with `any`.'
: 'You can replace that with just the lower bound: `>=${constraint.min}`.';
The Flutter constraint should not have an upper bound.
In your pubspec.yaml the constraint is currently `$flutterConstraint`.
See $explanationUrl''');