View file File name : loader.py Content :import tuned.profiles.profile import tuned.profiles.variables from tuned.utils.config_parser import ConfigParser, Error import tuned.consts as consts import os.path import collections import tuned.logs import re from tuned.profiles.exceptions import InvalidProfileException log = tuned.logs.get() class Loader(object): """ Profiles loader. """ __slots__ = ["_profile_locator", "_profile_merger", "_profile_factory", "_global_config", "_variables"] def __init__(self, profile_locator, profile_factory, profile_merger, global_config, variables): self._profile_locator = profile_locator self._profile_factory = profile_factory self._profile_merger = profile_merger self._global_config = global_config self._variables = variables def _create_profile(self, profile_name, config): return tuned.profiles.profile.Profile(profile_name, config) @classmethod def safe_name(cls, profile_name): return re.match(r'^[a-zA-Z0-9_.-]+$', profile_name) @property def profile_locator(self): return self._profile_locator def load(self, profile_names): if type(profile_names) is not list: profile_names = profile_names.split() profile_names = list(filter(self.safe_name, profile_names)) if len(profile_names) == 0: raise InvalidProfileException("No profile or invalid profiles were specified.") if len(profile_names) > 1: log.info("loading profiles: %s" % ", ".join(profile_names)) else: log.info("loading profile: %s" % profile_names[0]) profiles = [] processed_files = [] self._load_profile(profile_names, profiles, processed_files) if len(profiles) > 1: final_profile = self._profile_merger.merge(profiles) else: final_profile = profiles[0] final_profile.name = " ".join(profile_names) if "variables" in final_profile.units: self._variables.add_from_cfg(final_profile.units["variables"].options) del(final_profile.units["variables"]) # FIXME hack, do all variable expansions in one place self._expand_vars_in_devices(final_profile) self._expand_vars_in_regexes(final_profile) return final_profile def _expand_vars_in_devices(self, profile): for unit in profile.units: profile.units[unit].devices = self._variables.expand(profile.units[unit].devices) def _expand_vars_in_regexes(self, profile): for unit in profile.units: profile.units[unit].cpuinfo_regex = self._variables.expand(profile.units[unit].cpuinfo_regex) profile.units[unit].uname_regex = self._variables.expand(profile.units[unit].uname_regex) def _load_profile(self, profile_names, profiles, processed_files): for name in profile_names: filename = self._profile_locator.get_config(name, processed_files) if filename == "": continue if filename is None: raise InvalidProfileException("Cannot find profile '%s' in '%s'." % (name, list(reversed(self._profile_locator._load_directories)))) processed_files.append(filename) config = self._load_config_data(filename) profile = self._profile_factory.create(name, config) if "include" in profile.options: include_names = re.split(r"\s*[,;]\s*", self._variables.expand(profile.options.pop("include"))) self._load_profile(include_names, profiles, processed_files) profiles.append(profile) def _expand_profile_dir(self, profile_dir, string): return re.sub(r'(?<!\\)\$\{i:PROFILE_DIR\}', profile_dir, string) def _load_config_data(self, file_name): try: config_obj = ConfigParser(delimiters=('='), inline_comment_prefixes=('#'), strict=False) config_obj.optionxform=str with open(file_name) as f: config_obj.read_file(f, file_name) except Error.__bases__ as e: raise InvalidProfileException("Cannot parse '%s'." % file_name, e) config = collections.OrderedDict() dir_name = os.path.dirname(file_name) for section in list(config_obj.sections()): config[section] = collections.OrderedDict() for option in config_obj.options(section): config[section][option] = config_obj.get(section, option, raw=True) config[section][option] = self._expand_profile_dir(dir_name, config[section][option]) if config[section].get("script") is not None: script_path = os.path.join(dir_name, config[section]["script"]) config[section]["script"] = [os.path.normpath(script_path)] return config