def checksum_ver()

in lib/muchos/config/base.py [0:0]

• 56 lines of code
• 12 McCabe index (conditional complexity)

    def checksum_ver(self, software, version):
        if not isfile(self.checksums_path):
            exit(
                "ERROR - A checksums file does not exist at {}".format(
                    self.hosts_path
                )
            )

        if "SNAPSHOT" in version:
            return ""

        if not self.checksums_d:
            self.checksums_d = {}
            with open(self.checksums_path) as f:
                for line in f:
                    line = line.strip()
                    if line.startswith("#") or not line:
                        continue
                    args = line.split(":")
                    if len(args) == 3:
                        inferred_algo = self.infer_hash_algo(args[2])
                        if inferred_algo is not None:
                            self.checksums_d[
                                "{0}:{1}".format(args[0], args[1])
                            ] = "{0}:{1}".format(
                                self.infer_hash_algo(args[2]), args[2]
                            )
                        else:
                            exit(
                                "ERROR - Bad line {} in checksums {}".format(
                                    line, self.checksums_path
                                )
                            )

                    elif len(args) == 4:
                        if args[2] not in HASHLEN_ALGO_MAP.values():
                            exit(
                                "ERROR - Unsupported hash algorithm {} "
                                "in checksums {}".format(
                                    line, self.checksums_path
                                )
                            )
                        self.checksums_d[
                            "{0}:{1}".format(args[0], args[1])
                        ] = "{0}:{1}".format(args[2], args[3])
                    else:
                        exit(
                            "ERROR - Bad line {} in checksums {}".format(
                                line, self.checksums_path
                            )
                        )

        key = "{0}:{1}".format(software, version)
        if key not in self.checksums_d:
            exit(
                "ERROR - Failed to find checksums for {} {} in {}".format(
                    software, version, self.checksums_path
                )
            )
        return self.checksums_d[key]