internal/frontend: serve error on nil queue

Requesting a package or module using a default branch like "@master"
causes the frontend to enqueue a request to the backend.

For cmd/pkgsite, there is no backend, so this behavior doesn't make
sense.

Prior to this CL, cmd/pkgsite panicked in this case because the
server's queue client was nil.

Here we serve an error instead.

Fixes golang/go#54478.

Change-Id: Id6f19ddd38b68b71286b5aaba9c83e676f4aa04c
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/425034
Run-TryBot: Jonathan Amsterdam <jba@google.com>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
1 file changed
tree: b1f3279c4fbcccf82feaad986ee8e0d8eabeef6b
  1. cmd/
  2. deploy/
  3. devtools/
  4. doc/
  5. internal/
  6. migrations/
  7. static/
  8. tests/
  9. third_party/
  10. .dockerignore
  11. .eslintignore
  12. .eslintrc.yaml
  13. .gitignore
  14. .prettierignore
  15. .prettierrc.yaml
  16. .stylelintignore
  17. .stylelintrc.yaml
  18. all.bash
  19. CONTRIBUTING.md
  20. go.mod
  21. go.sum
  22. jest.config.js
  23. LICENSE
  24. package-lock.json
  25. package.json
  26. PATENTS
  27. README.md
  28. tsconfig.json
README.md

Pkg.go.dev

Go Reference

A site for discovering Go packages

Pkg.go.dev is a website for discovering and evaluating Go packages and modules.

You can check it out at https://pkg.go.dev.

Requirements

Pkgsite requires Go 1.19 to run. The last commit that works with Go 1.18 is 9ffe8b928e4fbd3ff7dcf984254629a47f8b6e63. The last commit that works with Go 1.17 is 4d836c6a652cde92f433967680dfd6171a91ec12.

Issues

If you want to report a bug or have a feature suggestion, please first check the known issues to see if your issue is already being discussed. If an issue does not already exist, feel free to file an issue.

For answers to frequently asked questions, see pkg.go.dev/about.

You can also chat with us on the #pkgsite Slack channel on the Gophers Slack.

Contributing

We would love your help!

Our canonical Git repository is located at go.googlesource.com/pkgsite. There is a mirror of the repository at github.com/golang/pkgsite.

To contribute, please read our contributing guide.

License

Unless otherwise noted, the Go source files are distributed under the BSD-style license found in the LICENSE file.

Links