This adds an additional nar-bridge-pathinfo command.
It exposes a PathInfoService for a HTTP Binary Cache, ingesting data
into a BlobService/DirectoryService as it goes through the NAR file.
It does this whenever it receives a Get request for a specific output
path, and waits returning with the PathInfo response until it ingested
the data.
It does not do any sort of caching - this means it re-downloads NAR
files again whenever the PathInfo is requested again, so you most likely
do not want to use this currently.
It's one building component as soon as we have store composition (which
we currently don't, so don't use this).
It can be used as an alternative mechanism to ingest data (Blobs and
Directories) of a given store path from a binary cache into tvix-store.
```
❯ nix-build -A third_party.nixpkgs.hello
/nix/store/mdi7lvrn2mx7rfzv3fdq3v5yw8swiks6-hello-2.12.1
❯ nix hash to-sri --type sha1 mdi7lvrn2mx7rfzv3fdq3v5yw8swiks6
sha1-Rs/INeK+7IGbG/u7fHoVNm96Yqs=
❯ out=$(mg build //tvix/nar-bridge)
$out/bin/nar-bridge-pathinfo --log-level debug &
INFO[0000] Starting nar-bridge-pathinfosvc at [::]:8001
❯ mg run //tvix:store -- daemon &
[mg] building target //tvix:store
[mg] running target //tvix:store
2023-10-03T16:21:57.433739Z INFO tvix_store: tvix-store listening on [::]:8000
at src/bin/tvix-store.rs:229
❯ evans --host localhost --port 8001 -r repl
[…]
tvix.store.v1.PathInfoService@localhost:8001> call Get
✔ by_output_hash
by_output_hash (TYPE_BYTES) => Rs/INeK+7IGbG/u7fHoVNm96Yqs=
{
"narinfo": {
"narSha256": "sXrPtjqhSoc2u0YfM1HVZThknkSYuRuHdtKCB6wkDFo=",
"narSize": "226552",
"referenceNames": [
"aw2fw9ag10wr9pf0qk4nk5sxi0q0bn56-glibc-2.37-8",
"mdi7lvrn2mx7rfzv3fdq3v5yw8swiks6-hello-2.12.1"
],
"signatures": [
{
"data": "7guDbfaF2Q29HY0c5axhtuacfxN6uxuEqeUfncDiSvMSAWvfHVMppB89ILqV8FE58pEQ04tSbMnRhR3FGPV0AA==",
"name": "cache.nixos.org-1"
}
]
},
"node": {
"directory": {
"digest": "xvo6BYbYaDw76IibLu5sr+VZoj9iM0ET2RUuYSYLwKE=",
"name": "bWRpN2x2cm4ybXg3cmZ6djNmZHEzdjV5dzhzd2lrczYtaGVsbG8tMi4xMi4x",
"size": 141
}
},
"references": [
"ptgFMIhdl2nJxMDdlDkITyXuBFc=",
"Rs/INeK+7IGbG/u7fHoVNm96Yqs="
]
}
```
Change-Id: I50167d0ac081c91adf5cf2733bbc4dc0993bd46e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9539
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Reviewed-by: Brian Olsen <me@griff.name>
Rename the nar-bridge CLI to nar-bridge-http, because it's the one
spinning up an http server.
Change-Id: I0fb75c50e4299272a128dd5ecaa4be8f06fa3dbe
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9538
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
This provides a Nix HTTP Binary Cache interface in front of a tvix-store
that's reachable via gRPC.
TODOs:
- remove import command, move serve up to toplevel. We have nix-copy-
closure and tvix-store commands.
- loop into CI. We should be able to fetch the protos as a third-party
dependency.
- Check if we can test nar-bridge slightly easier in an integration
test.
- Ensure we support connecting to unix sockets and grpc+http at least,
using the same syntax as tvix-store.
- Don't buffer the entire blob when rendering NAR
Co-Authored-By: Connor Brewster <cbrewster@hey.com>
Co-Authored-By: Márton Boros <martonboros@gmail.com>
Co-Authored-By: Vo Minh Thu <noteed@gmail.com>
Change-Id: I6064474e49dfe78cea67676957462d9f28658d4a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9339
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
