[coverage] Switch from package:pubspec_parse to package:yaml (#2103)

pkgs/coverage/CHANGELOG.md

diff --git a/pkgs/coverage/CHANGELOG.md b/pkgs/coverage/CHANGELOG.md
index 2a680ad..98f8852 100644
--- a/pkgs/coverage/CHANGELOG.md
+++ b/pkgs/coverage/CHANGELOG.md
@@ -1,3 +1,7 @@
+## 1.14.1-wip
+
+- Remove dependency on `package:pubspec_parse`.
+
 ## 1.14.0
 
 - Require Dart ^3.6.0

pkgs/coverage/lib/src/util.dart

diff --git a/pkgs/coverage/lib/src/util.dart b/pkgs/coverage/lib/src/util.dart
index 74a1697..8ae1a4b 100644
--- a/pkgs/coverage/lib/src/util.dart
+++ b/pkgs/coverage/lib/src/util.dart
@@ -7,8 +7,8 @@
 import 'dart:io';
 
 import 'package:path/path.dart' as path;
-import 'package:pubspec_parse/pubspec_parse.dart';
 import 'package:vm_service/vm_service.dart';
+import 'package:yaml/yaml.dart';
 
 // TODO(cbracken) make generic
 /// Retries the specified function with the specified interval and returns
@@ -174,12 +174,16 @@
     _getAllWorkspaceNames(packageRoot, <String>[]);
 
 List<String> _getAllWorkspaceNames(String packageRoot, List<String> results) {
-  final pubspecPath = getPubspecPath(packageRoot);
-  final yaml = File(pubspecPath).readAsStringSync();
-  final pubspec = Pubspec.parse(yaml, sourceUrl: Uri.file(pubspecPath));
-  results.add(pubspec.name);
-  for (final workspace in pubspec.workspace ?? <String>[]) {
-    _getAllWorkspaceNames(path.join(packageRoot, workspace), results);
+  final pubspec = _loadPubspec(packageRoot);
+  results.add(pubspec['name'] as String);
+  for (final workspace in pubspec['workspace'] as YamlList? ?? []) {
+    _getAllWorkspaceNames(path.join(packageRoot, workspace as String), results);
   }
   return results;
 }
+
+YamlMap _loadPubspec(String packageRoot) {
+  final pubspecPath = getPubspecPath(packageRoot);
+  final yaml = File(pubspecPath).readAsStringSync();
+  return loadYaml(yaml, sourceUrl: Uri.file(pubspecPath)) as YamlMap;
+}

pkgs/coverage/pubspec.yaml

diff --git a/pkgs/coverage/pubspec.yaml b/pkgs/coverage/pubspec.yaml
index e4a229e..3228ab3 100644
--- a/pkgs/coverage/pubspec.yaml
+++ b/pkgs/coverage/pubspec.yaml
@@ -1,5 +1,5 @@
 name: coverage
-version: 1.14.0
+version: 1.14.1-wip
 description: Coverage data manipulation and formatting
 repository: https://github.com/dart-lang/tools/tree/main/pkgs/coverage
 issue_tracker: https://github.com/dart-lang/tools/issues?q=is%3Aissue+is%3Aopen+label%3Apackage%3Acoverage
@@ -15,10 +15,10 @@
   meta: ^1.0.2
   package_config: ^2.0.0
   path: ^1.8.0
-  pubspec_parse: ^1.5.0
   source_maps: ^0.10.10
   stack_trace: ^1.10.0
   vm_service: '>=12.0.0 <16.0.0'
+  yaml: ^3.1.3
 
 dev_dependencies:
   benchmark_harness: ^2.2.0