internal/frontend: add an interface for creating request caches

This change adds a new Cacher interface that is used to create
middlewares for caching requests. This abstracts away the use of redis
so that the frontend doesn't depend on redis. The tests still depend
on redis for the 404 page testing logic, but the 404 page logic will
be moved out into a different package so those tests will go too.

The Expirer and Middleware interfaces are not present on the Cache
function so that the interface can be defined in package
internal/frontend without needing the dependency on the Middleware
package.

For golang/go#61399

Change-Id: I6518b2ed1d772cb4deda3308c4190f0f1b8a35a0
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/514518
kokoro-CI: kokoro <noreply+kokoro@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Michael Matloob <matloob@golang.org>
7 files changed
tree: 17f6566721bb9d8cc3342151d3a812926e269560
  1. .github/
  2. cmd/
  3. deploy/
  4. devtools/
  5. doc/
  6. internal/
  7. migrations/
  8. static/
  9. tests/
  10. third_party/
  11. .dockerignore
  12. .eslintignore
  13. .eslintrc.yaml
  14. .gitignore
  15. .prettierignore
  16. .prettierrc.yaml
  17. .stylelintignore
  18. .stylelintrc.yaml
  19. all.bash
  20. CONTRIBUTING.md
  21. go.mod
  22. go.sum
  23. jest.config.js
  24. LICENSE
  25. package-lock.json
  26. package.json
  27. PATENTS
  28. README.md
  29. tsconfig.json
README.md

golang.org/x/pkgsite

This repository hosts the source code of the pkg.go.dev website, and pkgsite, a documentation server program.

Go Reference

pkg.go.dev: 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.

pkgsite: a documentation server

pkgsite program extracts and generates documentation for Go projects.

Example usage:

$ go install golang.org/x/pkgsite/cmd/pkgsite@latest
$ cd myproject
$ pkgsite -open .

For more information, see the pkgsite documentation.

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