fn generate_identity_info()

in enclave_build/src/lib.rs [151:199]

• 42 lines of code
• 7 McCabe index (conditional complexity)

    fn generate_identity_info(&self) -> Result<EifIdentityInfo, Docker2EifError> {
        let docker_info = self
            .docker
            .inspect_image()
            .map_err(|e| Docker2EifError::MetadataError(format!("Docker inspect error: {e:?}")))?;

        let uri_split: Vec<&str> = self.docker_image.split(':').collect();
        if uri_split.is_empty() {
            return Err(Docker2EifError::MetadataError(
                "Wrong image name specified".to_string(),
            ));
        }

        // Image hash is used by default in case image version is not provided.
        // It's taken from JSON generated by `docker inspect` and a bit fragile.
        // May be later we should change it to fetching this data
        // from a specific struct and not JSON
        let img_hash = docker_info
            .get("Id")
            .and_then(|val| val.as_str())
            .and_then(|str| str.strip_prefix("sha256:"))
            .ok_or_else(|| {
                Docker2EifError::MetadataError(
                    "Image info must contain string Id field".to_string(),
                )
            })?;

        let img_name = self
            .img_name
            .clone()
            .unwrap_or_else(|| uri_split[0].to_string());
        let img_version = self
            .img_version
            .clone()
            .unwrap_or_else(|| img_hash.to_string());

        let mut custom_info = json!(null);
        if let Some(ref path) = self.metadata_path {
            custom_info = parse_custom_metadata(path).map_err(Docker2EifError::MetadataError)?
        }

        Ok(EifIdentityInfo {
            img_name,
            img_version,
            build_info: self.build_info.clone(),
            docker_info,
            custom_info,
        })
    }