use crate::{hash::Write as HashWrite, loose};use git_object::{borrowed, owned};use quick_error::quick_error;use std::io; quick_error! { #[derive(Debug)] pub enum Error { Io(err: io::Error) { display("reading of object failed") from() source(err) } Decode(err: super::decode::Error) { display("Decoding of object failed") from() source(err) } ChecksumMismatch(desired: owned::Id, actual: owned::Id) { display("Object expected to have id {}, but actual id was {}", desired, actual) } }} 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_id = owned::Id::from(sink.hash.digest()); if desired != actual_id.to_borrowed() { return Err(Error::ChecksumMismatch(desired.into(), actual_id)); } Ok(()) }}
use crate::{hash::Write as HashWrite, loose};
use git_object::{borrowed, owned};
use quick_error::quick_error;
use std::io;
quick_error! {
#[derive(Debug)]
pub enum Error {
Io(err: io::Error) {
display("reading of object failed")
from()
source(err)
}
Decode(err: super::decode::Error) {
display("Decoding of object failed")
from()
source(err)
}
ChecksumMismatch(desired: owned::Id, actual: owned::Id) {
display("Object expected to have id {}, but actual id was {}", desired, actual)
}
}
}
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_id = owned::Id::from(sink.hash.digest());
if desired != actual_id.to_borrowed() {
return Err(Error::ChecksumMismatch(desired.into(), actual_id));
}
Ok(())
}
}