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use crate::ffi;
use derive_more::{Display, Error, From};
use std::{ffi::CStr, io};
pub type Result<T> = std::result::Result<T, Error>;
#[derive(Display, From, Error, Debug)]
#[non_exhaustive]
pub enum Error {
#[display(fmt = "Extraction error: '{}'", _0)]
Extraction(#[error(not(source))] String),
Io(io::Error),
#[cfg(feature = "tokio_support")]
JoinError(tokio::task::JoinError),
#[display(fmt = "Error to create the archive struct, is null")]
NullArchive,
#[display(fmt = "Unknown error")]
Unknown,
}
pub(crate) fn archive_result(value: i32, archive: *mut ffi::archive) -> Result<()> {
if value != ffi::ARCHIVE_OK {
return Err(Error::from(archive));
}
Ok(())
}
#[allow(clippy::not_unsafe_ptr_arg_deref)]
impl From<*mut ffi::archive> for Error {
fn from(input: *mut ffi::archive) -> Self {
unsafe {
let error_string = ffi::archive_error_string(input);
if !error_string.is_null() {
return Error::Extraction(
CStr::from_ptr(error_string).to_string_lossy().to_string(),
);
}
let errno = ffi::archive_errno(input);
if errno != 0 {
return io::Error::from_raw_os_error(errno).into();
}
}
Error::Unknown
}
}