Commit graph

152 commits

Author SHA1 Message Date
Florian Klink
c0e16059e6 feat(tvix/store): support RUST_LOG env var
This allows selectively increasing the log level for only parts of the
stack.

For example, the following RUST_LOG env var enables "tracing" level
logging for `tvix_store` and `tvix_castore`, while keeping it at "info"
for the rest of the stack:

export RUST_LOG='info,tvix_store=trace,tvix_castore=trace'

It only affects logs, not traces (if enabled).

Change-Id: Ib936bd132a405f216e75c843db83fbd71d20a18a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11182
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Connor Brewster <cbrewster@hey.com>
2024-03-18 16:10:05 +00:00
Florian Klink
dbf87f3057 chore(tvix): bump tonic to 0.11.0
This bumps tonic and surrounding crates to 0.11.x.

We added support for tonic 0.11.x into tokio-listener
(https://github.com/vi/tokio-listener/pull/4), so that's bumped as well.

Change-Id: Icfade5894403228299836fefb21b2f9ae59dbebb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11156
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2024-03-16 17:04:12 +00:00
Florian Klink
907ecff999 feat(nix-compat/wire): add low-level wire format primitives code
This brings some initial Nix wire format parsing code, used in the nix
daemon protocol, remote store/builder protocol, as well as the NAR
format itself (note we already have more specialized code for the last
one).

Thanks to embr, this code already exists, in
https://codeberg.org/gorgon/gorgon/src/branch/main/nix-daemon/src/wire.rs,
and we can vendor it into here, as EUPL is compatible with GPL (in that
direction).

The code uses the tokio::io Reader and Writer traits, not the ones from
the `futures` crate, as they provide some more convenient `read_u64_le`
functions.

More application-specific parsing code, as well as code to read strings,
or bytes are left out for now, as we want to be be more restrictive
w.r.t allowed max sizes, and need to parse bytes, not strings.

The code slightly diverges, as we have clippy looped into CI.
`Ok(…?)` can be turned into just the inner expression, and
some .and_then can be expressed in a simpler fashion.

Change-Id: Ie3adcb485e9d66786673b1962a08d4e5df3781d9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11148
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: picnoir picnoir <picnoir@alternativebit.fr>
2024-03-15 10:23:12 +00:00
Florian Klink
1c2db676a0 feat(tvix/castore/blobsvc): add object storage implementation
This uses the `object_store` crate to expose a tvix-castore BlobService
backed by object storage.

It's using FastCDC to chunk blobs into smaller chunks when writing to
it.

These are exposed at the .chunks() method.

Change-Id: I2858c403d4d6490cdca73ebef03c26290b2b3c8e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11076
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
Reviewed-by: Brian Olsen <me@griff.name>
2024-03-11 22:42:01 +00:00
Aspen Smith
54609e8c17 feat(tvix/glue): Add AsyncRead wrapper to decompress streams
Add a new AsyncRead wrapper, DecompressedReader, that wraps an
underlying AsyncRead, but sniffs the magic bytes at the start of the
stream to determine which compression format is being used out of the
three that are supported by builtins.fetchTarball, and switches to the
correct decompression algorithm adapter dynamically.

This will be used in the implementation of builtins.fetchTarball

Change-Id: I892a4683d5c93e67d4c173f3d21199bdc6605922
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11019
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2024-03-11 11:35:18 +00:00
Aspen Smith
de727bccf9 feat(tvix/glue): Implement builtins.fetchurl
Implement the fetchurl builtin, and lay the groundwork for implementing
the fetchTarball builtin (which works very similarly, and is implemented
using almost the same code in C++ nix).

An overview of how this works:

1. First, we check if the store path that *would* result from the
   download already exists in the store - if it does, we just return
   that
2. If we need to download the URL, TvixStoreIO has an `http_client:
   reqwest::Client` field now which we use to make the request
3. As we're downloading the blob, we hash the data incrementally into a
   SHA256 hasher
4. We compare the hash against the expected hash (if any) and bail out
   if it doesn't match
5. Finally, we put the blob in the store and return the store path

Since the logic is very similar, this commit also implements a *chunk*
of `fetchTarball` (though the actual implementation will likely include
a refactor to some of the code reuse here).

The main thing that's missing here is caching of downloaded blobs when
fetchurl is called without a hash - I've opened b/381 to track the TODO
there.

Adding the `SSL_CERT_FILE` here is necessary to teach reqwest how to
load it during tests - see 1c16dee20 (feat(tvix/store): use reqwests'
rustls-native-roots feature, 2024-03-03) for  more info.

Change-Id: I83c4abbc7c0c3bfe92461917e23d6d3430fbf137
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11017
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: aspen <root@gws.fyi>
2024-03-11 02:21:54 +00:00
Florian Klink
8f804f5d9c chore(tvix/nix-compat): bump zstd dependency
Otherwise this causes conflicts when adding a more recent zstd version
to another crate.

Change-Id: I02d1b1a37f18711c0969cb04e761e967fc4655dc
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11100
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: Connor Brewster <cbrewster@hey.com>
Tested-by: BuildkiteCI
2024-03-09 05:47:03 +00:00
Florian Klink
1c16dee207 feat(tvix/store): use reqwests' rustls-native-roots feature
This makes reqwest honor `SSL_CERT_FILE` - previously it was using the
chain bundled in webpki-roots.

`object_store` pulls in `reqwest` with this feature, and the cargo
solver will enable that feature globally as soon as we pull it in, as it
assumes features are additive.

This requires setting `SSL_CERT_FILE` when running tests, otherwise
they'll fail with the unhelpful "NotFound" error.

This was quite some fun to debug, why adding `object_store` to
tvix-castore suddenly made tvix-store tests fail!

Change-Id: I64fc82b4d994715480efdb1ffecb279716456ab9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11090
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-03-03 15:32:38 +00:00
Florian Klink
8383e9e02e feat(tvix/castore/digests): impl From digest::Output<_> for B3Digest
This allows calling .into() to get a B3Digest.

Change-Id: I6e63b496413cd00d84acfcd15c7de0f64c79721f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11086
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-03-03 15:18:19 +00:00
Padraic-O-Mhuiris
5c3065b43a feat(tvix/eval): implement builtins.hashString
Implements md5, sha1, sha256 and sha512 using the related crates from
the RustCrypto hashes project (https://github.com/RustCrypto/hashes)

Change-Id: I00730dea44ec9ef85309edc27addab0ae88814b8
Reviewed-on: https://cl.tvl.fyi/c/depot/+/11005
Tested-by: BuildkiteCI
Reviewed-by: aspen <root@gws.fyi>
2024-02-23 16:04:35 +00:00
Ryan Lahfa
7388078630 feat(tvix/eval): implement builtins.filterSource
We add a new set of builtins called `import_builtins`, which
will contain import-related builtins, such as `builtins.path` and
`builtins.filterSource`. Both can import paths into the store, with
various knobs to alter the result, e.g. filtering, renaming, expected
hashes.

We introduce `filtered_ingest` which will drive the filtered ingestion
via the Nix function via the generator machinery, and then we register
the root node to the path info service inside the store.

`builtins.filterSource` is very simple, `builtins.path` is a more
complicated model requiring the same logic albeit more sophisticated
with name customization, file ingestion method and expected SHA-256.

Change-Id: I1083f37808b35f7b37818c8ffb9543d9682b2de2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10654
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2024-02-20 14:16:36 +00:00
Florian Klink
43570bae11 refactor(tvix/store/proto): use bstr::ByteSlice
String::from_utf8_lossy simply discards invalid bytes, while bstr
replaces them with their replacement character.

Change-Id: Ib78ff36ca5faacc1ad60bc4ddde7b62773848c07
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10981
Tested-by: BuildkiteCI
Reviewed-by: Peter Kolloch <info@eigenvalue.net>
Reviewed-by: flokli <flokli@flokli.de>
2024-02-20 05:29:14 +00:00
Florian Klink
c6605992c0 feat(tvix/glue): drive builds on IO
That's one possible abstraction to drive builds.
Whenever IO into a store path is requested, we look up the root node,
and in case we don't have it in PathInfoService, but KnownPaths gives us
a Derivation for that output path, trigger a build and await the result.

This recursively might trigger builds for parent paths if they haven't
been built yet.

Another option would be to simply expose a PathInfoService interface for
a builder too, and loop all building into IO via PathInfoService
composition - but let's start with something.

Note tvix-cli doesn't have a configurable BuildService yet, it's plugged
to the DummyBuildService, so whenever it needs to do a build, it'll fail,
but that's how it can be provoked:

```
(builtins.readFile (import <nixpkgs> {}).hello.outPath + "/bin/hello")
[…]
error[E029]: I/O error: /nix/store/cg8a576pz2yfc1wbhxm1zy4x7lrk8pix-hello-2.12.1: builds are not supported with DummyBuildService
 --> [code]:1:2
  |
1 | (builtins.readFile (import <nixpkgs> {}).hello.outPath + "/bin/hello")
  |  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
```

Note how this fails, while pure output path calculation
(`(import <nixpkgs> {}).hello.outPath + "/bin/hello")`) still succeeds.

Change-Id: Id2075d8a2b18554d0dd608b4b29146a8cd411e7f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10793
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-02-18 08:59:49 +00:00
Florian Klink
d293304667 feat(tvix/cli): set up tracing[-subscriber]
No otlp yet, this simply gives us structured log output and a cli
argument for the log level.

Change-Id: Ifaa60bae419640e92baebb6ee59eedd775c769c2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10853
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
2024-02-17 08:06:42 +00:00
Florian Klink
44624284fd test(tvix/glue/known_paths): add tests
Change-Id: I02dc891c49ed650c66c403107767b11b6d5e2734
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10949
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: Peter Kolloch <info@eigenvalue.net>
Autosubmit: flokli <flokli@flokli.de>
2024-02-17 07:54:05 +00:00
Aspen Smith
201173afac fix(tvix): Represent strings as byte arrays
C++ nix uses C-style zero-terminated char pointers to represent strings
internally - however, up to this point, tvix has used Rust `String` and
`str` for string values. Since those are required to be valid utf-8, we
haven't been able to properly represent all the string values that Nix
supports.

To fix that, this change converts the internal representation of the
NixString struct from `Box<str>` to `BString`, from the `bstr` crate -
this is a wrapper around a `Vec<u8>` with extra functions for treating
that byte vector as a "morally string-like" value, which is basically
exactly what we need.

Since this changes a pretty fundamental assumption about a pretty core
type, there are a *lot* of changes in a lot of places to make this work,
but I've tried to keep the general philosophy and intent of most of the
code in most places intact. Most notably, there's nothing that's been
done to make the derivation stuff in //tvix/glue work with non-utf8
strings everywhere, instead opting to just convert to String/str when
passing things into that - there *might* be something to be done there,
but I don't know what the rules should be and I don't want to figure
them out in this change.

To deal with OS-native paths in a way that also works in WASM for
tvixbolt, this also adds a dependency on the "os_str_bytes" crate.

Fixes: b/189
Fixes: b/337
Change-Id: I5e6eb29c62f47dd91af954f5e12bfc3d186f5526
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10200
Reviewed-by: tazjin <tazjin@tvl.su>
Reviewed-by: flokli <flokli@flokli.de>
Reviewed-by: sterni <sternenseemann@systemli.org>
Autosubmit: aspen <root@gws.fyi>
Tested-by: BuildkiteCI
2024-01-31 14:51:49 +00:00
Florian Klink
501827db59 refactor(tvix/glue): add BuildService to TvixStoreIO
TvixStoreIO triggers builds whenever IO into a not-yet-built store path
is requested, if it knows how to build that path.

Change-Id: If30e9db6be2f2a30cbc9d0576f357f3ecfa0d35a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10645
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-01-18 14:30:23 +00:00
Ryan Lahfa
f71bb351d2 feat(tvix/glue): introduce test suite for context strings
This is an additional test suite on the top of the Nix ones
for context strings matters.

It already smoked out multiple mistakes and potential bugs and non-deterministic result from the evaluator.

It uses a similar technology as the one in the tvix-eval albeit we instantiate a fully fledged evaluator
with in-memory store.

We copy the files instead of symlinking them because crates are built in
isolation, so symlinks cannot work.

Change-Id: I63ae225ce4f83c6e2c8ccd60d779c2f8eb9d08fb
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10619
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2024-01-17 17:31:07 +00:00
Ryan Lahfa
75cc52ddb1 fix(tvix/eval): getContext merges underlying values
Previously, we were assembling very naively an attribute set composed of context we saw.

But it was forgetting that `"${drv}${drv.drvPath}"` would contain 2 contexts with the same key, but
with different values, one with `outputs = [ "out" ];` and `allOutputs = true;`.

Following this reasoning and comparing with what Nix does, we ought to merge underlying values systematically.

Hence, I bring `itertools` to perform a group by on the key and merge everything on the fly, it's not
beautiful but it's the best I could find, notice that I don't use
`group_by` but I talk about group by, that is, because `group_by` is a
`group_by_consecutive`, see
https://github.com/rust-itertools/itertools/issues/374.

Initially, I tried to do it without a `into_grouping_map_by`, it was akin to assemble the final `NixAttrs` directly,
it was less readable and harder to pull out because we don't have a lot of in-place mutable functions on
our data structures.

Change-Id: I9933c9bd88ffe04de50dda14f21879b60d8b8cd4
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10620
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2024-01-17 17:25:24 +00:00
Ryan Lahfa
bc8fb825c7 feat(tvix/eval): move away from test_generator to rstest
`test-generator` has not been updated in the past 2 years.
`rstest` has not been updated in the past 5 months.

This is an improvement in the maintenance state… I guess?
We get also new features, it changes the name of the tests with numbers too.

Change-Id: I5376104c7704f525dba7524da78daa09867cc669
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10623
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2024-01-17 07:34:02 +00:00
Florian Klink
f0a750bcb7 feat(tvix/build): add CLI entrypoint
This starts a BuildService as a separate process, currently defaulting
to the DummyBuildService.

Change-Id: Ic206f00831641d3ffebaa44883b7dc053700b9ca
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10631
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-01-15 18:54:35 +00:00
Florian Klink
170e0cdfad feat(tvix/build): add from_addr method
This allows constructing a BuildService from a URI, similar to how it's
done in tvix-[ca]store.

Change-Id: Ib962b329535c6c7e378ab7ac7f4dd254366497b3
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10630
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
2024-01-15 18:49:33 +00:00
Florian Klink
4fb4fc263d feat(tvix/build): add BuildService trait
Also provide a dummy implementation that just fails on any build that's
requested.

Change-Id: I0df743a730c5331ec9ce6e97a966abe18ce067f5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10627
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2024-01-15 18:25:19 +00:00
Florian Klink
d516ce56b1 feat(tvix/glue/derivationStrict): support __structuredAttrs
This adds support to handle the __structuredAttrs argument, which can be
passed to builtins.derivationStrict.

If __structuredAttrs is passed, and set to true, most of the arguments
passed to builtins.derivationStrict are not simply coerced to a string
and passed down to "environments", but instead kept in a more structured
fashion.

Inside ATerm, which is what's relevant as far as path calculation is
concerned, a virtual `__json` environment variable is present,
containing these structured values.

Inside Builds, these structured values are not made available as an
environment variable, but a JSON file (and source-able bash script).

This will need to be respected once we start emitting BuildRequests,
and for that we can probably just parse the `__json` key in
Derivation.environment again - or keep this additionally in
non-serialized form around during Evaluation.
No matter what, this is left for a followup CL.

The existing handle_derivation_parameters and populate_outputs helper
function were removed, as __structuredAttrs causes quite a change
in behaviour, and so handling both in the same place makes it more
readable.

There's some open questions w.r.t. string contexts for structured attrs
itself. A TODO is left for this, but at least path calculation for
individual structured attrs derivations are correct now.

Part of b/366.

Change-Id: Ic293822266ced6f8c4826d8ef0d2e098a4adccaa
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10604
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-01-12 22:25:35 +00:00
Florian Klink
986e9b73c3 feat(tvix/build): add BuildRequest validation
Change-Id: I8182e4c4a7e5694c1e6f1f56ce092751c22adf4c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10538
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2024-01-06 15:33:12 +00:00
Florian Klink
c9c95f4ef3 chore(tvix): bump itertools
Change-Id: I2c798a30d3e69789c7d9120422bfdd67b1560dd5
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10565
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-01-06 15:33:12 +00:00
Florian Klink
5a82736122 chore(tvix): bump test-case dep to 3.3.1
Change-Id: I643548d95a5fab84563c7cbe51ca2ce640c186a9
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10537
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
2024-01-05 16:43:34 +00:00
Florian Klink
802f374a90 feat(tvix/glue): handle passAsFile
This extends derivation_to_build_request to handle passAsFile the same
way Nix does, and adds a unit test for it.

I opted to making this function fallible (if passAsFile contains a
non-existent env var), rather than pushing all of this into the
Derivation validate function.

Change-Id: I75b635f1f6c0c78d72b9a8fc7824f77e97b69951
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10522
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-01-03 14:15:15 +00:00
Florian Klink
6b136dfd23 feat(tvix/glue): emit a warning in case of bad SRI hashes
And include a test to ensure we show the warning.

Change-Id: Ib6a436dbba2592b398b54e44f15a48d1aa345099
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10470
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-01-03 13:01:02 +00:00
Florian Klink
3307791855 feat(tvix/store): add opentelemetry
This is behind the otlp feature flag (currently enabled by default).

By default, this will try to push traces to a OTLP collector running at
https://localhost:4317.

You can make one available by running:

```
docker run -d --name jaeger \
  -e COLLECTOR_ZIPKIN_HOST_PORT=:9411 \
  -e COLLECTOR_OTLP_ENABLED=true \
  -p 6831:6831/udp \
  -p 6832:6832/udp \
  -p 5778:5778 \
  -p 16686:16686 \
  -p 4317:4317 \
  -p 4318:4318 \
  -p 14250:14250 \
  -p 14268:14268 \
  -p 14269:14269 \
  -p 9411:9411 --rm \
  jaegertracing/all-in-one:1.42
```

Started like that, jaeger brings a web interface at
http://localhost:16686/search

As documented in
https://docs.rs/opentelemetry-otlp/latest/opentelemetry_otlp/, you can
point this to another location by setting `OTEL_EXPORTER_OTLP_ENDPOINT`.

Change-Id: Id1dca367d70027b2ea98bb70bcf99a68363ec2be
Reviewed-on: https://cl.tvl.fyi/c/depot/+/8194
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: aaqaishtyaq <aaqaishtyaq@gmail.com>
2024-01-01 17:27:39 +00:00
Florian Klink
acbb613e61 chore(tvix): switch to upstream futures 0.3.30
The bugs have been fixed,
https://github.com/rust-lang/futures-rs/pull/2801 and
https://github.com/rust-lang/futures-rs/pull/2812 were merged and ended
up in that release.

Change-Id: Iefd990d2d1719b884504093343e54e9c5258e2e2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10414
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-12-24 21:45:04 +00:00
Florian Klink
8d86d2f409 refactor(tvix/castore): add RootNode impl for BTreeMap, mv fs tests
cl/10378 did already move store/fs to castore/fs, but we kept the tests
in tvix-store, as they were populating a PathInfoService to make nodes
appear in the mount root.

Update these tests to now just insert root nodes into a BTreeMap, and
ensure we can use that as a RootNodes too.

Change-Id: Iad7d1ee4f9423eb6e3a1da33f433842c9ae0de1f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10410
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
2023-12-24 15:44:30 +00:00
Florian Klink
a5167c508c chore(tvix): move store/fs to castore/fs
With the recent introduction of the RootNodes trait, there's nothing in
the fs module pulling in tvix-store dependencies, so it can live in
tvix-castore.

This allows other crates to make use of TvixStoreFS, without having to
pull in tvix-store.

For example, a tvix-build using a fuse mountpoint at /nix/store doesn't
need a PathInfoService to hold the root nodes that should be present,
but just a list.

tvix-store now has a pathinfoservice/fs module, which contains the
necessary glue logic to implement the RootNodes trait for a
PathInfoService.

To satisfy Rust orphan rules for trait implementations, we had to add a
small wrapper struct. It's mostly hidden away by the make_fs helper
function returning a TvixStoreFs.

It can't be entirely private, as its still leaking into the concrete
type of TvixStoreFS.

tvix-store still has `fuse` and `virtiofs` features, but they now simply
enable these features in the `tvix-castore` crate they depend on.

The tests for the fuse functionality stay in tvix-store for now, as
they populate the root nodes through a PathInfoService.

Once above mentioned "list of root nodes" implementation exists, we
might want to shuffle this around one more time.

Fixes b/341.

Change-Id: I989f664827a5a361b23b34368d242d10c157c756
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10378
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: sterni <sternenseemann@systemli.org>
2023-12-22 16:55:18 +00:00
Ryan Lahfa
0ae32d45f6 feat(tvix/castore): simple filesystem blob service
The simple filesystem `BlobService` enable a user to write blob store
on an existing filesystem using a prefix-style layout in the provided root directory,
e.g. the two first bytes of the blake3 hashes are used as directories prefixes.

Change-Id: I3451a688a6f39027b9c6517d853b95a87adb3a52
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10071
Autosubmit: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
2023-12-17 14:34:13 +00:00
Florian Klink
43ab1543e2 chore(tvix/store): switch back to fuse-backend-rs upstream
The fix mentioned in Cargo.toml did land in
https://github.com/cloud-hypervisor/fuse-backend-rs/pull/162.

Change-Id: I4451f910806f05400f7e0f83581ae786f170b9e2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10375
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-12-16 21:46:30 +00:00
Florian Klink
3cdde8ad5a feat(tvix/glue): add some import tests
This creates a directory with a .keep file inside, and uses
"${path/to/there}" to coerce it to a string (and import it into the
store), ensuring it calculates the same store paths as Nix does.

Change-Id: Ie14ae075104ce278bc4f2cce93aab5762a2734d1
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10343
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-12-13 13:41:44 +00:00
Florian Klink
8018313b68 feat(tvix/glue): add nixpkgs eval benchmark
This adds a criterion.rs-based testbench into tvix-glue.

It can be invoked by running `cargo bench` from inside the `tvix-glue`
crate.
`target/criterion/report/index.html` contains nice graphs.
It's able to diff against the previous run, so you can invoke `cargo
bench` before and after a certain change to reason about the impact in
evaluation performance.

Currently, we need to create a bunch of Evaluator resources inside the
benchmark loop itself, which is a bit annoying, as it leaks into the
things we benchmark.

This should become better with b/262.

Fixes b/322.

Change-Id: I91656a308887baa1d459ed54d58baae919a4aaf2
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10245
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-12 10:27:51 +00:00
Florian Klink
9748543f1c chore(tvix): drop sled compression support
It's been a while since the last sled release, and that one binds to a
pretty old version of zstd, requiring workarounds like cl/10090.

Upstream sled main branch currently has zstd halfway patched out (it's
a no-op, but the feature flag and options are still there), and it's in
that state for a year.

Rather than maintaining our own fork of sled, let's just stop using the
compression feature in sled, dropping the version pin to zstd that way,
removing the need for cl/10090.

This doesn't mean we won't reintroduce per-blob compression - but we
probably just won't let sled take care of the compression, but do it
ourselves - which is necessary for more chunked blob storage anyways.

Even though we do drop the feature flag, we still need to explicitly use
use_compression(false).

Change-Id: I0e4892d29e41c76653272dc1a3625180da6fee12
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10257
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2023-12-11 22:46:50 +00:00
Florian Klink
8486f87e3c feat(tvix/build): add derivation_to_build_request
This function converts from a nix_compat::derivation::Derivation to
a BuildRequest.

In addition to the Derivation itself, it needs two lookup functions to
map input paths to their castore nodes.

Change-Id: I0332982f0bc7933a5fda137fe39d5a850639d929
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10236
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-12-11 22:35:39 +00:00
Florian Klink
fd27d8ddc3 feat(tvix/build): init
This adds the tvix-build crate, currently only containing a
`tvix_build::proto` module, exposing the data structures defined in
tvix/build/protos.

Change-Id: I75f5d9196969ed0877b1fe640cacfecba0fb2e03
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10235
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2023-12-11 21:43:38 +00:00
Florian Klink
01a3c87a3a chore(tvix): bump criterion to 0.5
Change-Id: I28904ca23437b4bb745c0eb1f4eb9ae33e09eb5a
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10244
Reviewed-by: grfn <grfn@gws.fyi>
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-12-11 03:59:30 +00:00
Florian Klink
f11c6d610c chore(tvix/nix_cli): drop crate
The only thing this was doing was invoking nix-store --add, which is not
gonna help us populate the tvix-store at all (and we now have
`tvix-store import`).

This is also (rightfully) causing clippy warnings, because of some
fields being unused.

It's more of a skeleton, and rather than shelling out to Nix for some
usecases, we might introduce a "compatible" Nix CLI frontend for a
subset of commands.

Drop this for now, to decrease the noise and confusion.

Change-Id: I2fd399e9320260f08893b685561755af9c7c961c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10226
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: tazjin <tazjin@tvl.su>
2023-12-09 12:58:39 +00:00
Florian Klink
bb18556bf3 feat(tvix/nix-compat): add narinfo::Signature::verify
This adds support for verifying signatures found in NARInfo files.

This still needs to be hooked together with the nix+http[s] backend.

Change-Id: Ic1c8ddbdecfb05cefca2492808388b0f7f3f2637
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10081
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
Tested-by: BuildkiteCI
2023-11-19 22:06:07 +00:00
Florian Klink
be48ba75ab feat(tvix/store/pathinfoservice): implement NixHTTPPathInfoService
NixHTTPPathInfoService acts as a bridge in between the Nix HTTP Binary
cache protocol provided by Nix binary caches such as cache.nixos.org,
and the Tvix Store Model.
It implements the [PathInfoService] trait in an interesting way: Every
[PathInfoService::get] fetches the .narinfo and referred NAR file,
inserting components into a [BlobService] and [DirectoryService], then
returning a [PathInfo] struct with the root.
Due to this being quite a costly operation, clients are expected to
layer this service with store composition, so they're only ingested
once.
The client is expected to be (indirectly) using the same [BlobService]
and [DirectoryService], so able to fetch referred Directories and Blobs.
[PathInfoService::put] and [PathInfoService::nar] are not implemented
and return an error if called.

This behaves very similar to the nar-bridge-pathinfo code in nar-bridge,
except it's now in Rust.

Change-Id: Ia03d4fed9d0657965d100299af97cd917a03f2f0
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10069
Tested-by: BuildkiteCI
Autosubmit: flokli <flokli@flokli.de>
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-11-19 13:19:24 +00:00
edef
9ad7cc629e fix(tvix): patch futures::AsyncBufReadExt::fill_buf
This fixes EOF handling for buffered readers.

Link: https://github.com/rust-lang/futures-rs/pull/2801
Change-Id: Ie98ca6a3e1de38500b0195e9b62511501acb1d2c
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10086
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-11-19 08:35:38 +00:00
edef
479f26f46c chore(tvix): upgrade futures to 0.3.29
Change-Id: I8fd63be3cbec8766fd6d72cd9271989a19774816
Reviewed-on: https://cl.tvl.fyi/c/depot/+/10085
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-11-19 08:35:38 +00:00
edef
2997c1c304 feat(nix-compat/narinfo): turn flags into bitfields
Change-Id: I8b95723444013e97bc6ec8d282c7135b1aede114
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9987
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-11-10 19:05:36 +00:00
Vincent Ambo
f325456cba chore(tvix): bump proptest dependency
This *might* contain a fix for a clippy lint thrown by that crate.

Relates to b/321.

Change-Id: Ia7ebd3e26e0feb8bcc7a6c811b1e583f9016fd9e
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9966
Tested-by: BuildkiteCI
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: tazjin <tazjin@tvl.su>
2023-11-05 20:28:38 +00:00
Florian Klink
3196fe0143 refactor(tvix): move tvix glue code into glue crate
There's various bits and pieces in tvix-cli that use both the store and
evaluator, as well as nix-compat. For example, builtins.derivation, as
well as the reference scanning implementation.

This "glue code" currently isn't accessible from anywhere else, but it'd
be very useful if it were.

Move it out into a `glue` crate, and make `tvix-cli` a consumer of it.

All the KnownPaths setup and passing around, as well as NIX_PATH
handling is also something that should probably be moved into the glue
crate as well, but that's something left for a future CL.

Change-Id: I080ed3d1825ab23790666486840f301f00856277
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9908
Autosubmit: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-11-04 15:18:44 +00:00
edef
9253bf6632 feat(tvix/nix-compat): add narinfo parsing and serialisation
Change-Id: I72c63414794642ca8d85c3f635f49db888420c40
Reviewed-on: https://cl.tvl.fyi/c/depot/+/9852
Reviewed-by: flokli <flokli@flokli.de>
Tested-by: BuildkiteCI
2023-10-27 16:08:06 +00:00