`pub get` updates `pubspec.lock` timestamp without `package_config.json` resulting in prompts to run `pub get`

[DanTup]

I have some test failures in Dart-Code that are caused by unexpected prompts to run "pub get" when open test projects.

One of the tests we use to determine whether to prompt for running "dart pub get" is whether the pubspec.lock file is newer than the .dart_tool/package_config.json (this was noted here).

However there are cases where running dart pub get seems to touch the pubspec.lock file without touching the package_config.json which results in us showing this prompt on every load. For example:

PS D:\Dev\Dart-Code\Dart-Code\src\test\test_projects\hello_world\example> dart --version
Dart SDK version: 3.8.0 (stable) (Wed May 14 09:07:14 2025 -0700) on "windows_x64"

[DanTup]

@sigurdm btw, is this the right issue tracker for issues like this, or should they be in SDK tracker?

[sigurdm]

@DanTup this one is perfect for pub client issues as this is, the pub team monitors this one quite closely.

Don't worry too much though, we can transfer issues between the dart-lang repos.