def stage()

in src/buildstream_plugins/sources/cargo.py [0:0]

• 15 lines of code
• 3 McCabe index (conditional complexity)

    def stage(self, directory):
        try:
            mirror_file = self._get_mirror_file()
            with tarfile.open(mirror_file) as tar:
                tar.extractall(path=directory)
                members = tar.getmembers()

            if members:
                dirname = members[0].name.split("/")[0]
                package_dir = os.path.join(directory, dirname)
                checksum_file = os.path.join(package_dir, ".cargo-checksum.json")
                with open(checksum_file, "w", encoding="utf-8") as f:
                    checksum_data = {"package": self.sha, "files": {}}
                    json.dump(checksum_data, f)

        except (tarfile.TarError, OSError) as e:
            raise SourceError("{}: Error staging source: {}".format(self, e)) from e