use crate::{hash::Write as HashWrite, loose};use git_object::{borrowed, owned};use std::io; #[derive(thiserror::Error, Debug)]pub enum Error { #[error("reading of object failed")] Io(#[from] io::Error), #[error("Decoding of object failed")] Decode(#[from] super::decode::Error), #[error("Object expected to have id {desired}, but actual id was {actual}")] ChecksumMismatch { desired: owned::Id, actual: owned::Id },} impl loose::Object { pub fn verify_checksum(&mut self, desired: borrowed::Id<'_>) -> Result<(), Error> { let mut sink = HashWrite::new(io::sink(), desired.kind()); let (kind, size) = (self.kind, self.size); let mut reader = self.stream()?; loose::object::header::encode(kind, size as u64, &mut sink).expect("hash to always work"); io::copy(&mut reader, &mut sink)?; let actual = owned::Id::from(sink.hash.digest()); if desired != actual.to_borrowed() { return Err(Error::ChecksumMismatch { desired: desired.into(), actual, }); } Ok(()) }}
use crate::{hash::Write as HashWrite, loose};
use git_object::{borrowed, owned};
use std::io;
#[derive(thiserror::Error, Debug)]
pub enum Error {
#[error("reading of object failed")]
Io(#[from] io::Error),
#[error("Decoding of object failed")]
Decode(#[from] super::decode::Error),
#[error("Object expected to have id {desired}, but actual id was {actual}")]
ChecksumMismatch { desired: owned::Id, actual: owned::Id },
}
impl loose::Object {
pub fn verify_checksum(&mut self, desired: borrowed::Id<'_>) -> Result<(), Error> {
let mut sink = HashWrite::new(io::sink(), desired.kind());
let (kind, size) = (self.kind, self.size);
let mut reader = self.stream()?;
loose::object::header::encode(kind, size as u64, &mut sink).expect("hash to always work");
io::copy(&mut reader, &mut sink)?;
let actual = owned::Id::from(sink.hash.digest());
if desired != actual.to_borrowed() {
return Err(Error::ChecksumMismatch {
desired: desired.into(),
actual,
});
}
Ok(())
}
}