feat(http/unstable): `unstable-file-server`

[iuioiua]

This new module is an updated version of @std/http/file-server that uses deno serve, which takes care of the heavy lifting of some argument parsing and can be run in parallel service workers thanks to --parallel. It directly relies on the exported symbols of @std/http/file-server and a few kinks need to be figured out.

Closes #5681

[codecov[bot]]

Codecov Report

Attention: Patch coverage is 53.33333% with 28 lines in your changes missing coverage. Please review.

Project coverage is 94.08%. Comparing base (9195573) to head (6ce9184).

Files with missing lines	Patch %	Lines
http/unstable_file_server.ts	53.33%	28 Missing :warning:

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6668      +/-   ##
==========================================
- Coverage   94.69%   94.08%   -0.62%     
==========================================
  Files         562      561       -1     
  Lines       46646    41661    -4985     
  Branches     6569     6558      -11     
==========================================
- Hits        44173    39197    -4976     
+ Misses       2430     2416      -14     
- Partials       43       48       +5     

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[kt3k]

The entrypoint name seems suggesting this will be merged to file-server in the future, but I don't think we can do that (this script only work with deno serve, not with deno run)

Maybe better to give a different name?

[iuioiua]

Yes, I should've clarified that my intention was that this was to replace the current @std/http/file-server. My reasoning is that it's worth the breakage thanks to deno serve doing the heavy lifting of CLI argument parsing and the ability to parallelise requests with deno serve --parallel. Though, I know I'm more liberal with breaking changes than most.

Alternatively, we can depend on https://github.com/denoland/deno/issues/29447 to be implemented as to minimise breaking changes and avoiding having to create a new endpoint.

[iuioiua]

I'll take another approach if https://github.com/denoland/deno/pull/29812 is merged.