[native_assets_cli] Prevent non src imports from src

[dcharkes]

This PR removes all imports of the lib/foo.dart files in lib/src/**.dart.

These imports are unwanted as they are a blanket import. Instead, the file with the actual definitions in src/ should be imported.

Bug:

• [native_assets_cli] Reduce number of visible libraries in package #1805

Before we can address #999, we need to have an idea what the import structure should look like.

[github-actions]

PR Health

Breaking changes ✔️

Package	Change	Current Version	New Version	Needed Version	Looking good?
native_assets_builder	Non-Breaking	0.17.0	0.18.0-wip	0.17.1	✔️
native_assets_cli	Breaking	0.17.0	0.18.0-wip	0.18.0	✔️
native_toolchain_c	Non-Breaking	0.14.0	0.15.0-wip	0.14.1	✔️

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
no missing headers

All source files should start with a license header.

Unrelated files missing license headers

Files
pkgs/jni/lib/src/third_party/generated_bindings.dart
pkgs/objective_c/lib/src/ns_input_stream.dart

[coveralls]

coverage: 78.421%. remained the same
when pulling f0ec45c on organize-imports-3
into dcc6fc9 on main.

[HosseinYousefi]

Can you add tests for your lint rules as well?

[dcharkes]

Can you add tests for your lint rules as well?

Done. I can't add it in the same package though. (Custom lints apparently can't be applied to their own package.)

[HosseinYousefi]

LGTM!

[dcharkes]

Thanks @HosseinYousefi 🙏