Method update_data

crates/cache/src/lib.rs:264–308

(&self, hash: &str, serialized_data: &[u8])

    }

    fn update_data(&self, hash: &str, serialized_data: &[u8]) -> Option<()> {
        let mod_cache_path = self.root_path.join(hash);
        trace!("update_data() for path: {}", mod_cache_path.display());
        let compressed_data = zstd::encode_all(
            &serialized_data[..],
            self.cache.baseline_compression_level(),
        )
        .map_err(|err| warn!("Failed to compress cached code: {err}"))
        .ok()?;

        // Optimize syscalls: first, try writing to disk. It should succeed in most cases.
        // Otherwise, try creating the cache directory and retry writing to the file.
        if fs_write_atomic(&mod_cache_path, "mod", &compressed_data).is_ok() {
            return Some(());
        }

        debug!(
            "Attempting to create the cache directory, because \
             failed to write cached code to disk, path: {}",
            mod_cache_path.display(),
        );

        let cache_dir = mod_cache_path.parent().unwrap();
        fs::create_dir_all(cache_dir)
            .map_err(|err| {
                warn!(
                    "Failed to create cache directory, path: {}, message: {}",
                    cache_dir.display(),
                    err
                )
            })
            .ok()?;

        match fs_write_atomic(&mod_cache_path, "mod", &compressed_data) {
            Ok(_) => Some(()),
            Err(err) => {
                warn!(
                    "Failed to write file with rename, target path: {}, err: {}",
                    mod_cache_path.display(),
                    err
                );
                None
            }
        }
    }
}

impl Hasher for Sha256Hasher {