chore(catalog): Add ability to trace HTTP requests

[dcarley]

Proposed Changes

So that we can debug the requests and responses to the catalog server because _FLOX_CATALOG_DUMP_RESPONSE_FILE only gives us the translated response body. TBD whether we'd keep both.

It looks like this in use:

% FLOX_FEATURES_USE_CATALOG=true _FLOX_CATALOG_TRACE_HTTP=true just flox show hello -vvvvv
…
2024-05-10T15:12:26.036380Z TRACE reqwest::connect::verbose: 4e6242c9 write: b"GET /api/v1/catalog/packages/hello?page=0&pageSize=10 HTTP/1.1\r\naccept: application/json\r\nhost: flox-catalog.flox.dev\r\n\r\n"
2024-05-10T15:12:26.036445Z DEBUG hyper::proto::h1::io: flushed 121 bytes
2024-05-10T15:12:26.036472Z TRACE hyper::proto::h1::conn: flushed({role=client}): State { reading: Init, writing: KeepAlive, keep_alive: Busy }
2024-05-10T15:12:26.599513Z TRACE hyper::proto::h1::conn: Conn::read_head
2024-05-10T15:12:26.599745Z TRACE reqwest::connect::verbose: 4e6242c9 read: b"HTTP/1.1 200 OK\r\nServer: nginx\r\nDate: Fri, 10 May 2024 15:12:26 GMT\r\nContent-Type: application/json\r\nContent-Length: 461\r\nConnection: keep-alive\r\nVary: Accept-Encoding\r\n\r\n{\"items\":[{\"attr_path\":\"hello\",\"name\":\"hello-2.12.1\",\"pname\":\"hello\",\"version\":\"2.12.1\",\"outputs\":[{\"name\":\"out\",\"store_path\":\"/nix/store/f96mbgrwdfx6116arpm2bzjak21wmmw6-hello-2.12.1\"}],\"outputs_to_install\":[\"out\"],\"description\":\"A program that produces a familiar, friendly greeting\",\"license\":\"GPL-3.0-or-later\",\"rev\":\"25865a40d14b3f9cf19f19b924e2ab4069b09588\",\"rev_count\":621993,\"rev_date\":\"2024-05-05T10:51:47Z\",\"system\":\"aarch64-darwin\"}],\"total_count\":1}"
…

This is nice in the respect that it gives us the request too, there's minimal plumbing, and we don't have to figure out how to represent multiple request/response cycles.

However the output is pretty noisy and requires some additional un-escaping such as:

pbpaste | sed 's/\\"/"/g' | jq .

Release Notes

N/A

[dcarley]

Closing in favour of #1468.