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use std::{borrow::Cow, result};
use thiserror::Error;
/// A type alias for handling errors related to Bottom.
pub type Result<T> = result::Result<T, BottomError>;
/// An error that can occur while Bottom runs.
#[derive(Debug, Error)]
pub enum BottomError {
/// An error when there is an IO exception.
#[error("IO exception, {0}")]
InvalidIO(String),
/// An error when the heim library encounters a problem.
#[error("Error caused by Heim, {0}")]
InvalidHeim(String),
/// An error when the Crossterm library encounters a problem.
#[error("Error caused by Crossterm, {0}")]
CrosstermError(String),
/// An error to represent generic errors.
#[error("Generic error, {0}")]
GenericError(String),
/// An error to represent errors with fern.
#[error("Fern error, {0}")]
FernError(String),
/// An error to represent errors with the config.
#[error("Configuration file error, {0}")]
ConfigError(String),
/// An error to represent errors with converting between data types.
#[error("Conversion error, {0}")]
ConversionError(String),
/// An error to represent errors with querying.
#[error("Query error, {0}")]
QueryError(Cow<'static, str>),
/// An error that just signifies something minor went wrong; no message.
#[error("Minor error.")]
MinorError,
}
impl From<std::io::Error> for BottomError {
fn from(err: std::io::Error) -> Self {
BottomError::InvalidIO(err.to_string())
}
}
#[cfg(not(any(target_arch = "aarch64", target_arch = "arm")))]
impl From<heim::Error> for BottomError {
fn from(err: heim::Error) -> Self {
BottomError::InvalidHeim(err.to_string())
}
}
impl From<crossterm::ErrorKind> for BottomError {
fn from(err: crossterm::ErrorKind) -> Self {
BottomError::CrosstermError(err.to_string())
}
}
impl From<std::num::ParseIntError> for BottomError {
fn from(err: std::num::ParseIntError) -> Self {
BottomError::ConfigError(err.to_string())
}
}
impl From<std::string::String> for BottomError {
fn from(err: std::string::String) -> Self {
BottomError::GenericError(err)
}
}
impl From<toml::de::Error> for BottomError {
fn from(err: toml::de::Error) -> Self {
BottomError::ConfigError(err.to_string())
}
}
#[cfg(feature = "fern")]
impl From<fern::InitError> for BottomError {
fn from(err: fern::InitError) -> Self {
BottomError::FernError(err.to_string())
}
}
impl From<std::str::Utf8Error> for BottomError {
fn from(err: std::str::Utf8Error) -> Self {
BottomError::ConversionError(err.to_string())
}
}
impl From<regex::Error> for BottomError {
fn from(err: regex::Error) -> Self {
// We only really want the last part of it... so we'll do it the ugly way:
let err_str = err.to_string();
let error = err_str.split('\n').map(|s| s.trim()).collect::<Vec<_>>();
BottomError::QueryError(
format!(
"Regex error: {}",
error.last().unwrap_or(&"".to_string().as_str())
)
.into(),
)
}
}
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