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use thiserror::Error;
use tvix_store::store_path::ParseStorePathError;
/// Errors that can occur during the validation of Derivation structs.
#[derive(Debug, Error, PartialEq)]
pub enum DerivationError {
// outputs
#[error("no outputs defined")]
NoOutputs(),
#[error("invalid output name: {0}")]
InvalidOutputName(String),
#[error("encountered fixed-output derivation, but more than 1 output in total")]
MoreThanOneOutputButFixed(),
#[error("invalid output name for fixed-output derivation: {0}")]
InvalidOutputNameForFixed(String),
#[error("unable to validate output {0}: {1}")]
InvalidOutput(String, OutputError),
// input derivation
#[error("unable to parse input derivation path {0}: {1}")]
InvalidInputDerivationPath(String, ParseStorePathError),
#[error("input derivation {0} doesn't end with .drv")]
InvalidInputDerivationPrefix(String),
#[error("input derivation {0} output names are empty")]
EmptyInputDerivationOutputNames(String),
#[error("input derivation {0} output name {1} is invalid")]
InvalidInputDerivationOutputName(String, String),
// input sources
#[error("unable to parse input sources path {0}: {1}")]
InvalidInputSourcesPath(String, ParseStorePathError),
// platform
#[error("invalid platform field: {0}")]
InvalidPlatform(String),
// builder
#[error("invalid builder field: {0}")]
InvalidBuilder(String),
// environment
#[error("invalid environment key {0}")]
InvalidEnvironmentKey(String),
}
/// Errors that can occur during the validation of a specific [Output] of a [Derviation].
#[derive(Debug, Error, PartialEq)]
pub enum OutputError {
#[error("Invalid ouput path {0}: {1}")]
InvalidOutputPath(String, ParseStorePathError),
#[error("Invalid hash encoding: {0}")]
InvalidHashEncoding(String, data_encoding::DecodeError),
#[error("Invalid hash algo: {0}")]
InvalidHashAlgo(String),
#[error("Invalid Digest size {0} for algo {1}")]
InvalidDigestSizeForAlgo(usize, String),
}
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