72b9a126b8
This one's relatively simple - we just check if the store path exists, and if it does we make a new contextful string containing the store path as its only context element. Automatic testing seems tricky for this (I think?) so I tested it manually: tvix-repl> builtins.storePath /nix/store/yn46i4xx5alh7gs6fpkxk430i34rp2q9-hello-2.12.1 => "/nix/store/yn46i4xx5alh7gs6fpkxk430i34rp2q9-hello-2.12.1" :: string Change-Id: I8a0d9726e4102ab872c53c2419679c2c855a5a18 Reviewed-on: https://cl.tvl.fyi/c/depot/+/11696 Tested-by: BuildkiteCI Autosubmit: aspen <root@gws.fyi> Reviewed-by: flokli <flokli@flokli.de>
80 lines
2.5 KiB
Rust
80 lines
2.5 KiB
Rust
//! Contains errors that can occur during evaluation of builtins in this crate
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use nix_compat::{
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nixhash::{self, NixHash},
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store_path::BuildStorePathError,
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};
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use reqwest::Url;
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use std::{path::PathBuf, rc::Rc};
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use thiserror::Error;
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use tvix_castore::import;
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/// Errors related to derivation construction
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#[derive(Debug, Error)]
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pub enum DerivationError {
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#[error("an output with the name '{0}' is already defined")]
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DuplicateOutput(String),
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#[error("fixed-output derivations can only have the default `out`-output")]
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ConflictingOutputTypes,
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#[error("the environment variable '{0}' has already been set in this derivation")]
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DuplicateEnvVar(String),
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#[error("invalid derivation parameters: {0}")]
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InvalidDerivation(#[from] nix_compat::derivation::DerivationError),
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#[error("invalid output hash: {0}")]
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InvalidOutputHash(#[from] nixhash::Error),
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#[error("invalid output hash mode: '{0}', only 'recursive' and 'flat` are supported")]
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InvalidOutputHashMode(String),
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}
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impl From<DerivationError> for tvix_eval::ErrorKind {
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fn from(err: DerivationError) -> Self {
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tvix_eval::ErrorKind::TvixError(Rc::new(err))
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}
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}
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#[derive(Debug, Error)]
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pub enum FetcherError {
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#[error("hash mismatch in file downloaded from {url}:\n wanted: {wanted}\n got: {got}")]
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HashMismatch {
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url: Url,
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wanted: NixHash,
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got: NixHash,
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},
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#[error("Invalid hash type '{0}' for fetcher")]
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InvalidHashType(&'static str),
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#[error("Unable to parse URL: {0}")]
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InvalidUrl(#[from] url::ParseError),
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#[error(transparent)]
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Http(#[from] reqwest::Error),
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#[error(transparent)]
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Io(#[from] std::io::Error),
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#[error(transparent)]
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Import(#[from] tvix_castore::import::IngestionError<import::archive::Error>),
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#[error("Error calculating store path for fetcher output: {0}")]
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StorePath(#[from] BuildStorePathError),
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}
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/// Errors related to `builtins.path` and `builtins.filterSource`,
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/// a.k.a. "importing" builtins.
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#[derive(Debug, Error)]
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pub enum ImportError {
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#[error("non-file '{0}' cannot be imported in 'flat' mode")]
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FlatImportOfNonFile(String),
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#[error("hash mismatch at ingestion of '{0}', expected: '{1}', got: '{2}'")]
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HashMismatch(String, NixHash, NixHash),
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#[error("path '{}' is not in the Nix store", .0.display())]
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PathNotInStore(PathBuf),
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}
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impl From<ImportError> for tvix_eval::ErrorKind {
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fn from(err: ImportError) -> Self {
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tvix_eval::ErrorKind::TvixError(Rc::new(err))
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}
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}
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