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>
Use a genNarHandler() function accepting a boolean to construct the
HTTP handler.
Change-Id: I17c054826d91a9dbed8b1f53945a51f27fa60ace
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9537
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
This is only dealing with the HTTP interface.
Change-Id: I011b624fd9f11ea96231b92fea1166c118a219f2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9535
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
We can drop most of Hasher if we use a MultiWriter writing to the hash
function and a minimal CountingWriter.
This should make things a bit more understandable.
Change-Id: I37ee72d9a5c73f253aecc1ad761cb723389b89fc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9529
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
This aligns behaviour more with how it should be - it's the
responsibility of the callback functions to return digests of the things
they consume(d). It allows further cleaning up the hasher struct.
Change-Id: I9cbfc87e6abd4ff17fadf39eb6563ec3cb7fcc6f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9528
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Make the import function usable on any reader.
Change-Id: I84d2004cb73cdd7a11fe8efb0f2efb6335d5e6b0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9527
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
This is only called once.
Change-Id: I342443b8d04050929733fc84d5f36cd64060afe3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9525
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Defaulting to where `tvix-store daemon` listens to is a sane choice.
Change-Id: Ic52fa856c5708e0e1a8d51618f8c9ad1894fd28f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9452
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
nar_bridge is an odd name for the binary.
Change-Id: I761ec5f986bde2f7e50e5a0c0b6182164a6cdc7f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9451
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
More aligned with how it's called in other places
Change-Id: I759ac7ca3b5b69c1101d2d51a569d76c183a6330
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9362
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Create a pipe, pass the read end, and have a goroutine write to the
write end.
Change-Id: I301c273355705e60113b018e7e84b76972200e8c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9361
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Only keep the `serve` subcommand, and make it appear at the root.
Introduce a --log-level argument, and be a bit less noisy in normal
operation.
Change-Id: I86b8abde1869a5c0c947508bcc29f845222aac09
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9360
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
`nix copy` checks if NARs and NARInfo files are present, before
uploading them. That's not an error, but normal behaviour, so no need to
log with level info for these cases.
We only want to log if the error is not a 404, and log with Warn level.
Change-Id: I762de3b862d070a0f18bc62e324e94ca5c7c3693
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9359
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Let's make sure we don't end up blocking a client too much when
inserting very small blobs.
Change-Id: I640dda92efae538c70d32a40e6e85a23e9749e20
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9358
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Instead of creating one big BlobChunk containing all data, and creating
way too large proto messages, chunk blobs up to a reasonable (1MiB)
chunk size, and send them to the server like that.
Change-Id: Ia45a53956a6d7c0599cc59ac516ba37e9fb1b30e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9357
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Include the changes from cl/9351
Change-Id: Ie60c9dddcafaeee190439fa19fa7704917600fdb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9363
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
This change got lost in the rebases in cl/9348. There's unnecessary
`break`/`continues` that can be replaced by moving the conditional into
the for loop condition.
Change-Id: I559e21087630b05e483f768ab59f8067961a2eae
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9352
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Previously, nar-bridge, had a couple of bugs with tracking the current
directory when traversing a NAR file.
The included test case looks like:
```
/ (dir)
/test (dir)
/test/tested (file)
/tested (file)
```
Previously, we would do a string prefix match between the current node
and the top of the directory stack to determine if the node is in the
directory. In this case `/test` is a substring of `/tested`; however,
`/tested` is not in the `/test` directory. The fix is to append a `/` to
the directory name when doing the prefix match, so `/test/` is not a
prefix of `/tested`.
Additionally, when popping the stack, we need to continuously pop the
stack until the new node is in the directory at the top of the stack
(stopping before we pop the root directory)
Example:
```
/ (dir)
/a (dir)
/a/b (dir)
/a/b/c (file)
/z (file)
```
Previously, `z` would end up in directory `/a` because we only the pop
the stack once.
The included test case requires both of these issues to be fixed for it
to pass, so I think it is sufficient.
Change-Id: I22f601babf04d39d85535ba7ad585d3970757211
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9348
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: Connor Brewster <cbrewster@hey.com>
In some cases, Nix is not able to stream the NAR file fast enough. Bump the
timeouts for now. We might want to get a better understanding in what's
happening here long-term, and/or make the timeouts configurable.
Change-Id: Ieaa9c8f04bc73c6ce0679a058d07eaf87126634e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9340
Reviewed-by: tazjin <tazjin@tvl.su>
Tested-by: BuildkiteCI
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>
