sanitize-engine 0.2.0

Deterministic one-way data sanitization engine
Documentation 
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//! Unified error types for the sanitization engine.
//!
//! All fallible operations in the crate return [`Result<T>`], which is an
//! alias for `std::result::Result<T, SanitizeError>`.
//!
//! Errors are categorised by subsystem (`IoError`, `SecretsError`,
//! `ArchiveError`, …) so callers can match on the variant to decide
//! whether to retry, skip, or abort. The [`thiserror`] derive keeps
//! display messages actionable and grep-friendly.

use thiserror::Error;

/// All errors that can occur within the sanitization engine.
#[derive(Debug, Error)]
#[non_exhaustive]
pub enum SanitizeError {
    #[error("replacement store capacity exceeded: {current} mappings (limit: {limit})")]
    CapacityExceeded { current: usize, limit: usize },

    #[error("invalid seed length: expected 32 bytes, got {0}")]
    InvalidSeedLength(usize),

    #[error("replacement generator error: {0}")]
    GeneratorError(String),

    #[error("I/O error: {0}")]
    IoError(String),

    #[error("parse error ({format}): {message}")]
    ParseError { format: String, message: String },

    #[error("recursion depth exceeded: {0}")]
    RecursionDepthExceeded(String),

    #[error("input too large: {size} bytes (limit: {limit})")]
    InputTooLarge { size: usize, limit: usize },

    #[error("pattern compilation error: {0}")]
    PatternCompileError(String),

    #[error("invalid configuration: {0}")]
    InvalidConfig(String),

    #[error("secrets error: {0}")]
    SecretsError(String),

    #[error("archive error: {0}")]
    ArchiveError(String),
}

impl From<std::io::Error> for SanitizeError {
    fn from(e: std::io::Error) -> Self {
        SanitizeError::IoError(e.to_string())
    }
}

pub type Result<T> = std::result::Result<T, SanitizeError>;