Fix pana fails with custom PUB_HOSTED_URL containing a path

[jakob-grabner]

FIXES #1521 pana fails with custom PUB_HOSTED_URL containing a path

When using a custom PUB_HOSTED_URL that includes a path (e.g., hosted on a custom Artifactory server), the pana command fails to analyze packages. The issue seems to occur because the pana package strips away the path component of the PUB_HOSTED_URL when resolving the API endpoint.

My local tests confirm that our custom pub repo can be used after the change.

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[sigurdm]

Does this work both with custom_repo.com/path and custom_repo.com/path/ ?

Maybe we need to add a final slash to the url if it is not already there...

main() {
  print(Uri.parse('https://pub.dartlang.org/abc').resolve('packages'));
  print(Uri.parse('https://pub.dartlang.org/abc/').resolve('packages'));
}

prints

https://pub.dartlang.org/packages
https://pub.dartlang.org/abc/packages

[jakob-grabner]

You are right, pub is also normalizing the url https://github.com/dart-lang/pub/blob/28791d3fefb708e6b2b69bee39d8fa12b5ab1541/lib/src/source/hosted.dart#L80

I'm now using the same strategy as pub to normalize trailing slashes.

[sigurdm]

Can you sign the CLA?