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2024-04-24 r/8002 refactor(tvix/castore): add separate Error enum for archivesConnor Brewster1-0/+3
The `Error` enum for the `imports` crate has both filesystem and archive specific errors and was starting to get messy. This adds a separate `Error` enum for archive-specific errors and then keeps a single `Archive` variant in the top-level import `Error` for all archive errors. Change-Id: I4cd0746c864e5ec50b1aa68c0630ef9cd05176c7 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11498 Tested-by: BuildkiteCI Autosubmit: Connor Brewster <cbrewster@hey.com> Reviewed-by: flokli <flokli@flokli.de>
2024-04-23 r/7996 feat(tvix/glue/fetchers): support file:// URLsFlorian Klink1-1/+5
Nix supports file:// - URLs for `fetchurl` and `fetchTarball`. Convert the enums and function arguments to hold a URL type. reqwest::Url is a re-export of the url crate, but they don't re-export the parsing errors, and as we want to hold these in our Error types, add it to Cargo.toml explicitly. The Fetcher::download function now checks on the scheme, and either opens the file locally, or does do a HTTP request as before. Fetch gets its custom debug impl, removing potentially sensitive username and password out of URLs. Change-Id: I777db1fe487370e822cbfec4624034aca5e08045 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11504 Autosubmit: flokli <flokli@flokli.de> Reviewed-by: raitobezarius <tvl@lahfa.xyz> Tested-by: BuildkiteCI
2024-04-23 r/7993 refactor(tvix/glue): move Fetch[er] into its own types, fetch lazilyFlorian Klink1-8/+8
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
2024-04-01 r/7840 feat(tvix/eval): implement `builtins.path`Ryan Lahfa1-0/+16
Now, it supports almost everything except `recursive = false;`, i.e. `flat`-ingestion because we have no knob exposed in the tvix store import side to do it. This has been tested to work. Change-Id: I2e9da10ceccdfbf45b43c532077ed45d6306aa98 Reviewed-on: https://cl.tvl.fyi/c/depot/+/10597 Tested-by: BuildkiteCI Autosubmit: raitobezarius <tvl@lahfa.xyz> Reviewed-by: flokli <flokli@flokli.de>
2024-03-11 r/7678 feat(tvix/glue): Implement builtins.fetchurlAspen Smith1-1/+29
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>
2024-02-23 r/7596 refactor(tvix/glue): Make a single errors.rs moduleAspen Smith1-0/+27
To pave the way for adding a new error type for builtins in this crate, move DerivationError to a new builtins::errors module. Change-Id: I65fcad63e43ed40ad39c2c6540a2ab80fdd90fd4 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11016 Tested-by: BuildkiteCI Reviewed-by: flokli <flokli@flokli.de> Autosubmit: aspen <root@gws.fyi>