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96 lines
2.9 KiB
Python
96 lines
2.9 KiB
Python
"""Retrieve collection detail."""
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from __future__ import (absolute_import, division, print_function)
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__metaclass__ = type
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import json
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import os
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import re
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import sys
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import yaml
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# See semantic versioning specification (https://semver.org/)
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NUMERIC_IDENTIFIER = r'(?:0|[1-9][0-9]*)'
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ALPHANUMERIC_IDENTIFIER = r'(?:[0-9]*[a-zA-Z-][a-zA-Z0-9-]*)'
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PRE_RELEASE_IDENTIFIER = r'(?:' + NUMERIC_IDENTIFIER + r'|' + ALPHANUMERIC_IDENTIFIER + r')'
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BUILD_IDENTIFIER = r'[a-zA-Z0-9-]+' # equivalent to r'(?:[0-9]+|' + ALPHANUMERIC_IDENTIFIER + r')'
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VERSION_CORE = NUMERIC_IDENTIFIER + r'\.' + NUMERIC_IDENTIFIER + r'\.' + NUMERIC_IDENTIFIER
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PRE_RELEASE = r'(?:-' + PRE_RELEASE_IDENTIFIER + r'(?:\.' + PRE_RELEASE_IDENTIFIER + r')*)?'
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BUILD = r'(?:\+' + BUILD_IDENTIFIER + r'(?:\.' + BUILD_IDENTIFIER + r')*)?'
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SEMVER_REGULAR_EXPRESSION = r'^' + VERSION_CORE + PRE_RELEASE + BUILD + r'$'
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def validate_version(version):
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"""Raise exception if the provided version is not None or a valid semantic version."""
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if version is None:
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return
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if not re.match(SEMVER_REGULAR_EXPRESSION, version):
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raise Exception('Invalid version number "{0}". Collection version numbers must '
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'follow semantic versioning (https://semver.org/).'.format(version))
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def read_manifest_json(collection_path):
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"""Return collection information from the MANIFEST.json file."""
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manifest_path = os.path.join(collection_path, 'MANIFEST.json')
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if not os.path.exists(manifest_path):
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return None
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try:
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with open(manifest_path) as manifest_file:
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manifest = json.load(manifest_file)
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collection_info = manifest.get('collection_info') or dict()
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result = dict(
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version=collection_info.get('version'),
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)
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validate_version(result['version'])
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except Exception as ex: # pylint: disable=broad-except
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raise Exception('{0}: {1}'.format(os.path.basename(manifest_path), ex))
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return result
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def read_galaxy_yml(collection_path):
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"""Return collection information from the galaxy.yml file."""
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galaxy_path = os.path.join(collection_path, 'galaxy.yml')
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if not os.path.exists(galaxy_path):
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return None
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try:
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with open(galaxy_path) as galaxy_file:
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galaxy = yaml.safe_load(galaxy_file)
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result = dict(
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version=galaxy.get('version'),
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)
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validate_version(result['version'])
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except Exception as ex: # pylint: disable=broad-except
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raise Exception('{0}: {1}'.format(os.path.basename(galaxy_path), ex))
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return result
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def main():
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"""Retrieve collection detail."""
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collection_path = sys.argv[1]
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try:
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result = read_manifest_json(collection_path) or read_galaxy_yml(collection_path) or dict()
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except Exception as ex: # pylint: disable=broad-except
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result = dict(
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error='{0}'.format(ex),
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)
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print(json.dumps(result))
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if __name__ == '__main__':
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main()
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