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from __future__ import print_function |
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import argparse |
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import sys |
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import os.path |
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from glob import glob |
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import ssg.build_yaml |
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class ResolvableProfile(ssg.build_yaml.Profile): |
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def __init__(self, * args, ** kwargs): |
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super(ResolvableProfile, self).__init__(* args, ** kwargs) |
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self.resolved = False |
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def resolve(self, all_profiles): |
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if self.resolved: |
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return |
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resolved_selections = set(self.selected) |
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if self.extends: |
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if self.extends not in all_profiles: |
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msg = ( |
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"Profile {name} extends profile {extended}, but" |
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"only profiles {known_profiles} are available for resolution." |
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.format(name=self.id_, extended=self.extends, |
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profiles=list(all_profiles.keys()))) |
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raise RuntimeError(msg) |
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extended_profile = all_profiles[self.extends] |
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extended_profile.resolve(all_profiles) |
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extended_selects = set(extended_profile.selected) |
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resolved_selections.update(extended_selects) |
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updated_variables = dict(extended_profile.variables) |
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updated_variables.update(self.variables) |
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self.variables = updated_variables |
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updated_refinements = dict(extended_profile.refine_rules) |
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updated_refinements.update(self.refine_rules) |
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self.refine_rules = updated_refinements |
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for uns in self.unselected: |
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resolved_selections.discard(uns) |
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self.unselected = [] |
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self.selected = sorted(resolved_selections) |
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self.resolved = True |
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def create_parser(): |
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parser = argparse.ArgumentParser() |
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parser.add_argument("profile_file", nargs="*") |
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parser.add_argument( |
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"--build-config-yaml", |
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help="YAML file with information about the build configuration. " |
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"e.g.: ~/scap-security-guide/build/build_config.yml " |
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"needed for autodetection of profile root" |
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) |
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parser.add_argument( |
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"--product-yaml", |
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help="YAML file with information about the product we are building. " |
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"e.g.: ~/scap-security-guide/rhel7/product.yml " |
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"needed for autodetection of profile root" |
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) |
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parser.add_argument( |
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"--output", "-o", default="{name}.profile", |
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help="The template for saving processed profile files." |
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) |
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return parser |
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def make_name_to_profile_mapping(profile_files): |
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name_to_profile = {} |
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for f in profile_files: |
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try: |
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p = ResolvableProfile.from_yaml(f) |
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name_to_profile[p.id_] = p |
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except Exception as exc: |
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# The profile is probably doc-incomplete |
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msg = "Not building profile from {fname}: {err}".format( |
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fname=f, err=str(exc)) |
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print(msg, file=sys.stderr) |
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return name_to_profile |
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def get_env_yaml(build_config_yaml, product_yaml): |
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if build_config_yaml is None or product_yaml is None: |
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return None |
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env_yaml = ssg.yaml.open_environment(build_config_yaml, product_yaml) |
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return env_yaml |
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def get_profile_files_from_root(env_yaml, product_yaml): |
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profile_files = [] |
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if env_yaml: |
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base_dir = os.path.dirname(product_yaml) |
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profiles_root = ssg.utils.required_key(env_yaml, "profiles_root") |
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profile_files = glob("{base_dir}/{profiles_root}/*.profile" |
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.format(profiles_root=profiles_root, base_dir=base_dir)) |
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return profile_files |
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105
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106
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def main(): |
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parser = create_parser() |
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args = parser.parse_args() |
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env_yaml = get_env_yaml(args.build_config_yaml, args.product_yaml) |
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profile_files = get_profile_files_from_root(env_yaml, args.product_yaml) |
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profile_files.extend(args.profile_file) |
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profiles = make_name_to_profile_mapping(profile_files) |
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for pname in profiles: |
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profiles[pname].resolve(profiles) |
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for name, p in profiles.items(): |
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p.dump_yaml(args.output.format(name=name)) |
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120
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121
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if __name__ == "__main__": |
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main() |
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ComplianceAsCode /
content
