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91 lines
3.5 KiB
91 lines
3.5 KiB
#!/usr/bin/env python3
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# Copyright (C) 2019 Simon Quigley <tsimonq2@lubuntu.me>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <https://www.gnu.org/licenses/>.
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import git
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from os import getenv
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from yaml import CLoader
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from yaml import load as yaml_load
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from shutil import rmtree
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from tempfile import mkdtemp
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class Generator:
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def clone_metadata(self):
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"""Clone the metadata repository using the values set in the env vars
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The METADATA_URL and METADATA_REPO_NAME env vars must be set to use
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this function.
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The repository must have a ci.conf file in YAML format.
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This uses Git to clone the given repository - other VCSes are not
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supported at this time.
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"""
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# Assuming this is ran inside Jenkins, this fetches the env vars set in
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# the job config. If those don't exist, we need to throw an error,
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# because otherwise we have no metadata to actually pull from
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metadata_url = getenv("METADATA_URL")
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metadata_repo_name = getenv("METADATA_REPO_NAME")
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if not metadata_url or metadata_url == "" or not metadata_repo_name \
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or metadata_repo_name == "":
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raise ValueError("METADATA_URL and METADATA_REPO_NAME must be set")
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# Create a temporary directory in the most secure manner possible and
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# clone the metadata, throwing the directory away when we're done
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try:
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metadata_loc = mkdtemp()
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git.Git(metadata_loc).clone(metadata_url)
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# Load ci.conf and parse it
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with open(metadata_loc + "/" + metadata_repo_name + "/ci.conf") \
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as metadata_conf_file:
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metadata_conf = yaml_load(metadata_conf_file, Loader=CLoader)
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finally:
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rmtree(metadata_loc)
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return metadata_conf
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def parse_metadata(self):
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"""Parse the data pulled from clone_metadata
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Allow the user to be able to set default key values, resulting in
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shorter and cleaner configuration files.
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"""
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metadata_conf = self.clone_metadata()
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metadata_req_keys = ["name", "packaging_url", "packaging_branch",
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"upload_target", "releases"]
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metadata_opt_keys = ["upstream_url", "upstream_branch"]
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for package in metadata_conf["repositories"]:
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# Load defaults in if they're not there, ignore the optional ones
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for mkey in metadata_req_keys:
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if not mkey in package and mkey in metadata_conf["default"]:
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package[mkey] = metadata_conf["default"][mkey]
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# Don't proceed if any of the keys in the config are invalid
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for mkey in package:
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if not mkey in metadata_req_keys and not mkey in \
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metadata_opt_keys:
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raise ValueError("Invalid key present:", mkey)
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return metadata_conf["repositories"]
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if __name__ == "__main__":
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generator = Generator()
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print(generator.parse_metadata())
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