pub: symlinks within the project confused it

[jmesserly]

I hit an interesting case where Pub's "packages" symlinks get confused. Consider this folder structure:

web_ui/
  example/
 
  test/data/input
    example -> ../../../example

In this case, you end up with a packages symlink like this:

web_ui
  example/
    packages -> ../../../../../../packages

Basically, the number of ".." gets doubled because it's taking into account the relative symlink in "test/data/input"

Probably, you need to normalize the directory path relative to the directory containing the pubspec, before computing the relative symlink path for "packages"

BTW: this is not high priority--I was already in the process of fixing web_ui to not require symlinks to itself for tests. So I can unblock us on the web_ui side.

[munificent]

Added this to the Later milestone.
Removed Priority-Medium label.
Added Priority-Low label.

[DartBot]

This comment was originally written by [email protected]

---

Added Community-StarterBug label.

[munificent]

Marked this as being blocked by #15103.

[munificent]

Set owner to @munificent.
Added Started label.

[munificent]

Added Fixed label.

[DartBot]

This issue has been moved to dart-lang/pub#492.