The very first version of complete pack writing (#67)

git-odb/src/pack/data/encode/write.rs

@@ -85,7 +85,13 @@ where
  written += std::io::copy(&mut &*entry.compressed_data, &mut self.output)? as u64;
  }
  }
- None => todo!("write footer and set is_done = true"),
+ None => {
+ let digest = self.output.hash.clone().digest();
+ self.output.write_all(&digest[..])?;
+ written += digest.len() as u64;
+ self.output.flush()?;
+ self.is_done = true;
+ }
  };
  Ok(written)
  }

git-odb/tests/odb/pack/data/encode.rs

@@ -18,7 +18,6 @@ mod entries {
  }
 
  #[test]
- #[should_panic]
  fn all_input_objects() {
  (|| -> crate::Result {
  let db = db(DbKind::AbunchOfRandomObjects)?;
@@ -48,7 +47,8 @@ mod entries {
  pack::data::Version::V2,
  git_hash::Kind::Sha1,
  );
- let n = pack_writer.next().expect("one entries bundle was written")?;
+ let mut n = pack_writer.next().expect("one entries bundle was written")?;
+ n += pack_writer.next().expect("the trailer was written")?;
  assert!(
  pack_writer.next().is_none(),
  "there is nothing more to iterate this time"
@@ -63,6 +63,7 @@ mod entries {
  pack_file.metadata()?.len(),
  "it reports the correct amount of written bytes"
  );
+ // TODO: verify the new pack
 
  Ok(())
  })()