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2024-06-12 r/8254 feat(tvix/glue): support builtin:fetchurlFlorian Klink1-0/+2
nixpkgs calls <nix/fetchurl.nix> during nixpkgs bootstrap. This produces a fake derivation with system = builtin and builder = builtin:fetchurl, and needs to download files from the internet. At the end of the Derivation construction, if we have such a derivation, also synthesize a `Fetch` struct, which we add to the known fetch paths. This will then cause these fetches to be picked up like all other fetches in TvixStoreIO. Change-Id: I72cbca4f85da106b25eda97693a6a6e59911cd57 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10975 Reviewed-by: Connor Brewster <cbrewster@hey.com> Tested-by: BuildkiteCI
2024-04-29 r/8026 refactor(tvix/glue): move decompression into fetchers/ subdirFlorian Klink1-1/+0
This is specifically used for the fetcher code (only). Moving it to there for now. Change-Id: I1e1d0541b85340ef4ff3a4c6b3fa99b51853f539 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11532 Reviewed-by: edef <edef@edef.eu> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2024-04-23 r/7993 refactor(tvix/glue): move Fetch[er] into its own types, fetch lazilyFlorian Klink1-0/+1
We actually want to delay fetching until we actually need the file. A simple evaluation asking for `.outPath` or `.drvPath` should work even in a pure offline environment. Before this CL, the fetching logic was quite distributed between tvix_store_io, and builtins/fetchers.rs. Rather than having various functions and conversions between structs, describe a Fetch as an enum type, with the fields describing the fetch. Define a store_path() function on top of `Fetch` which can be used to ask for the calculated store path (if the digest has been provided upfront). Have a `Fetcher` struct, and give it a `fetch_and_persist` function, taking a `Fetch` as well as a desired name, and have it deal with all the logic of persisting the PathInfos. It also returns a StorePathRef, similar to the `.store_path()` method on a `Fetch` struct. In a followup CL, we can extend KnownPaths to track fetches AND derivations, and then use `Fetcher` when we need to do IO into that store path. Change-Id: Ib39a96baeb661750a8706b461f8ba4abb342e777 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11500 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2024-03-11 r/7679 feat(tvix/glue): Add AsyncRead wrapper to decompress streamsAspen Smith1-0/+1
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
2024-01-18 r/7407 refactor(tvix/eval): generalize EvalIO containerFlorian Klink1-1/+4
Don't restrict to a Box<dyn EvalIO>. There's still one or two places where we do restrict, this will be solved by b/262. Change-Id: Ic8d927d6ea81fa12d90b1e4352f35ffaafbd1adf Reviewed-on: https://cl.tvl.fyi/c/depot/+/10639 Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2024-01-17 r/7404 feat(tvix/glue): introduce test suite for context stringsRyan Lahfa1-0/+3
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>
2023-12-21 r/7244 docs(tvix/glue): fix docstringFlorian Klink1-1/+1
This is not an unclosed <html> tag. Change-Id: I2bd2426fc600de2d96dbab47743f1c7bd5fed35e Reviewed-on: https://cl.tvl.fyi/c/depot/+/10398 Tested-by: BuildkiteCI Autosubmit: flokli <flokli@flokli.de> Reviewed-by: edef <edef@edef.eu>
2023-12-11 r/7154 feat(tvix/build): add derivation_to_build_requestFlorian Klink1-0/+1
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>
2023-11-04 r/6939 refactor(tvix/glue): move builtins into separate directoryFlorian Klink1-24/+1
Change-Id: I25b7197458dbfbde8623545dc0a0286eb2744f10 Reviewed-on: https://cl.tvl.fyi/c/depot/+/9911 Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI Reviewed-by: raitobezarius <tvl@lahfa.xyz>
2023-11-04 r/6938 refactor(tvix/glue): move nix_path handling to helper in tvix-glueFlorian Klink1-0/+10
Change-Id: I2327560c4cf0d3f90e253e3c2f47cb29c762461e Reviewed-on: https://cl.tvl.fyi/c/depot/+/9910 Reviewed-by: raitobezarius <tvl@lahfa.xyz> Autosubmit: flokli <flokli@flokli.de> Tested-by: BuildkiteCI
2023-11-04 r/6936 refactor(tvix): move tvix glue code into glue crateFlorian Klink1-0/+28
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>