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use std::rc::Rc;
use thiserror::Error;
use tvix_derivation::DerivationError;
/// Errors related to derivation construction
#[derive(Debug, Error, PartialEq)]
pub enum Error {
#[error("an output with the name '{0}' is already defined")]
DuplicateOutput(String),
#[error("fixed-output derivations can only have the default `out`-output")]
ConflictingOutputTypes,
#[error("the environment variable '{0}' has already been set in this derivation")]
DuplicateEnvVar(String),
#[error("the environment variable '{0}' shadows the name of an output")]
ShadowedOutput(String),
#[error("invalid derivation parameters: {0}")]
InvalidDerivation(DerivationError),
#[error("invalid output hash mode: '{0}', only 'recursive' and 'flat` are supported")]
InvalidOutputHashMode(String),
#[error("unsupported sri algorithm: {0}, only sha1, sha256 or sha512 is supported")]
UnsupportedSRIAlgo(String),
#[error("invalid number of sri hashes in string ({0}), only one hash is supported")]
UnsupportedSRIMultiple(usize),
#[error("invalid sri digest: {0}")]
InvalidSRIDigest(data_encoding::DecodeError),
#[error("failed to parse SRI string: {0}")]
InvalidSRIString(String),
#[error("outputHashAlgo is set to {0}, but outputHash contains SRI with algo {1}")]
ConflictingSRIHashAlgo(String, String),
}
impl From<Error> for tvix_eval::ErrorKind {
fn from(err: Error) -> Self {
tvix_eval::ErrorKind::TvixError(Rc::new(err))
}
}
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