coverage: Allow specifying coverage flags via a yaml file

[Dhruv-Maradiya]

PR Description

Overview

• Fixes Allow specifying coverage flags via a yaml file #532
• Implemented functionality to specify coverage flags via a YAML file.
• Deprecated flags are ignored and not used from the YAML file.
• Functionality only allows specifying common flags.

Concerns

• parseArgs Handling:
  The parseArgs function is defined as private, preventing it from being imported into test files. As a workaround, I created a minimal version for testing purposes. I am wondering if there is a more efficient way to handle this.

• Test Coverage:
  I have added test cases to validate the new functionality. I'm unsure if I have organized the tests properly and would appreciate feedback on their coverage and structure.

---

• I’ve reviewed the contributor guide and applied the relevant portions to this PR.

[github-actions]

Package publishing

Package	Version	Status	Publish tag (post-merge)
package:coverage	1.11.2	ready to publish	coverage-v1.11.2
package:file_testing	3.1.0-wip	WIP (no publish necessary)
package:boolean_selector	2.1.2	already published at pub.dev
package:browser_launcher	1.1.3	already published at pub.dev
package:cli_config	0.2.1-wip	WIP (no publish necessary)
package:cli_util	0.4.2	already published at pub.dev
package:clock	1.1.2	already published at pub.dev
package:code_builder	4.10.1	already published at pub.dev
package:benchmark_harness	2.3.1	already published at pub.dev
package:csslib	1.0.2	already published at pub.dev
package:extension_discovery	2.1.0	already published at pub.dev
package:file	7.0.2-wip	WIP (no publish necessary)
package:bazel_worker	1.1.3-wip	WIP (no publish necessary)
package:graphs	2.3.3-wip	WIP (no publish necessary)
package:html	0.15.5	already published at pub.dev
package:io	1.0.5	already published at pub.dev
package:json_rpc_2	3.0.3	already published at pub.dev
package:mime	2.0.0	already published at pub.dev
package:oauth2	2.0.4-wip	WIP (no publish necessary)
package:package_config	2.1.1	already published at pub.dev
package:pool	1.5.2-wip	WIP (no publish necessary)
package:pub_semver	2.1.5	already published at pub.dev
package:pubspec_parse	1.5.0	already published at pub.dev
package:source_map_stack_trace	2.1.3-wip	WIP (no publish necessary)
package:yaml_edit	2.2.2	already published at pub.dev
package:source_span	1.10.1	already published at pub.dev
package:sse	4.1.7	already published at pub.dev
package:stack_trace	1.12.1	already published at pub.dev
package:stream_channel	2.1.4	already published at pub.dev
package:stream_transform	2.1.2-wip	WIP (no publish necessary)
package:string_scanner	1.4.1	already published at pub.dev
package:term_glyph	1.2.3-wip	WIP (no publish necessary)
package:test_reflective_loader	0.2.3	already published at pub.dev
package:timing	1.0.2	already published at pub.dev
package:unified_analytics	7.0.1	already published at pub.dev
package:watcher	1.1.1	already published at pub.dev
package:yaml	3.1.3	already published at pub.dev
package:source_maps	0.10.14-wip	WIP (no publish necessary)

Documentation at https://github.com/dart-lang/ecosystem/wiki/Publishing-automation.

[github-actions]

PR Health

Breaking changes ⚠️

Package	Change	Current Version	New Version	Needed Version	Looking good?
coverage	Non-Breaking	1.11.1	1.11.2	1.12.0 Got "1.11.2" expected >= "1.12.0" (non-breaking changes)	⚠️

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Changelog Entry ✔️

Package	Changed Files

Changes to files need to be accounted for in their respective changelogs.

Coverage ⚠️

File	Coverage
pkgs/coverage/bin/collect_coverage.dart	💔 Not covered
pkgs/coverage/bin/format_coverage.dart	💔 5 % ⬇️ 7 %
pkgs/coverage/bin/test_with_coverage.dart	💔 Not covered
pkgs/coverage/lib/src/coverage_options.dart	💚 100 %

This check for test coverage is informational (issues shown here will not fail the PR).

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API leaks ✔️

The following packages contain symbols visible in the public API, but not exported by the library. Export these symbols or remove them from your publicly visible API.

Package	Leaked API symbols

License Headers ⚠️

// Copyright (c) 2025, 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.

Files
pkgs/coverage/lib/src/coverage_options.dart
pkgs/coverage/test/collect_coverage_config_test.dart

All source files should start with a license header.

Unrelated files missing license headers

Files
pkgs/bazel_worker/benchmark/benchmark.dart
pkgs/bazel_worker/example/client.dart
pkgs/bazel_worker/example/worker.dart
pkgs/benchmark_harness/integration_test/perf_benchmark_test.dart
pkgs/boolean_selector/example/example.dart
pkgs/clock/lib/clock.dart
pkgs/clock/lib/src/clock.dart
pkgs/clock/lib/src/default.dart
pkgs/clock/lib/src/stopwatch.dart
pkgs/clock/lib/src/utils.dart
pkgs/clock/test/clock_test.dart
pkgs/clock/test/default_test.dart
pkgs/clock/test/stopwatch_test.dart
pkgs/clock/test/utils.dart
pkgs/html/example/main.dart
pkgs/html/lib/dom.dart
pkgs/html/lib/dom_parsing.dart
pkgs/html/lib/html_escape.dart
pkgs/html/lib/parser.dart
pkgs/html/lib/src/constants.dart
pkgs/html/lib/src/encoding_parser.dart
pkgs/html/lib/src/html_input_stream.dart
pkgs/html/lib/src/list_proxy.dart
pkgs/html/lib/src/query_selector.dart
pkgs/html/lib/src/token.dart
pkgs/html/lib/src/tokenizer.dart
pkgs/html/lib/src/treebuilder.dart
pkgs/html/lib/src/utils.dart
pkgs/html/test/dom_test.dart
pkgs/html/test/parser_feature_test.dart
pkgs/html/test/parser_test.dart
pkgs/html/test/query_selector_test.dart
pkgs/html/test/selectors/level1_baseline_test.dart
pkgs/html/test/selectors/level1_lib.dart
pkgs/html/test/selectors/selectors.dart
pkgs/html/test/support.dart
pkgs/html/test/tokenizer_test.dart
pkgs/pubspec_parse/test/git_uri_test.dart
pkgs/stack_trace/example/example.dart
pkgs/watcher/test/custom_watcher_factory_test.dart
pkgs/yaml_edit/example/example.dart

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