Method save_change_bytes

atomic-repository/src/repository/changes.rs:106–121

Save a change using pre-serialized V3 bytes (hash-stable). This writes the exact V3 bytes to disk, ensuring the file hash matches the hash registered in the pristine graph. Without this, re-serializing the deserialized Change can produce a different hash (different hash table ordering, different chunk boundaries, etc.), causing "change not found" errors on push. # Arguments `hash` - The content

(
        &self,
        hash: &Hash,
        v3_bytes: &[u8],
        _change: &Change,
    )

    /// * `v3_bytes` - The exact V3 bytes to write to disk
    /// * `_change` - The deserialized Change (unused, kept for API compatibility)
    pub(crate) fn save_change_bytes(
        &self,
        hash: &Hash,
        v3_bytes: &[u8],
        _change: &Change,
    ) -> Result<Hash, RepositoryError> {
        // Write the exact V3 bytes to the file store (no re-serialization).
        // This ensures the hash in the filename matches the hash in the pristine.
        let change_path = self.change_store.change_path(hash);
        if let Some(parent) = change_path.parent() {
            std::fs::create_dir_all(parent)?;
        }
        std::fs::write(&change_path, v3_bytes)?;

        Ok(*hash)
    }

    /// Load a change from the repository.
    ///