mirror of
https://github.com/weaveworks/scope.git
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94 lines
2.2 KiB
Python
Executable File
94 lines
2.2 KiB
Python
Executable File
#!/usr/bin/python
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# Generate the cross product of latest versions of Weave Net's dependencies:
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# - Go
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# - Docker
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# - Kubernetes
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#
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# Dependencies:
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# - python
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# - git
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# - list_versions.py
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#
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# Testing:
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# $ python -m doctest -v cross_versions.py
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from os import linesep
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from sys import argv, exit, stdout, stderr
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from getopt import getopt, GetoptError
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from list_versions import DEPS, get_versions_from, filter_versions
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from itertools import product
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# See also: /usr/include/sysexits.h
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_ERROR_RUNTIME=1
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_ERROR_ILLEGAL_ARGS=64
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def _usage(error_message=None):
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if error_message:
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stderr.write('ERROR: ' + error_message + linesep)
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stdout.write(linesep.join([
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'Usage:',
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' cross_versions.py [OPTION]...',
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'Examples:',
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' cross_versions.py',
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' cross_versions.py -r',
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' cross_versions.py --rc',
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' cross_versions.py -l',
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' cross_versions.py --latest',
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'Options:',
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'-l/--latest Include only the latest version of each major and minor versions sub-tree.',
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'-r/--rc Include release candidate versions.',
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'-h/--help Prints this!',
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''
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]))
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def _validate_input(argv):
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try:
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config = {
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'rc': False,
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'latest': False
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}
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opts, args = getopt(argv, 'hlr', ['help', 'latest', 'rc'])
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for opt, value in opts:
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if opt in ('-h', '--help'):
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_usage()
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exit()
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if opt in ('-l', '--latest'):
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config['latest'] = True
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if opt in ('-r', '--rc'):
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config['rc'] = True
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if len(args) != 0:
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raise ValueError('Unsupported argument(s): %s.' % args)
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return config
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except GetoptError as e:
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_usage(str(e))
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exit(_ERROR_ILLEGAL_ARGS)
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except ValueError as e:
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_usage(str(e))
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exit(_ERROR_ILLEGAL_ARGS)
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def _versions(dependency, config):
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return map(str,
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filter_versions(
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get_versions_from(DEPS[dependency]['url'], DEPS[dependency]['re']),
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DEPS[dependency]['min'],
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**config
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)
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)
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def cross_versions(config):
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docker_versions = _versions('docker', config)
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k8s_versions = _versions('kubernetes', config)
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return product(docker_versions, k8s_versions)
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def main(argv):
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try:
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config = _validate_input(argv)
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print(linesep.join('\t'.join(triple) for triple in cross_versions(config)))
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except Exception as e:
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print(str(e))
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exit(_ERROR_RUNTIME)
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if __name__ == '__main__':
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main(argv[1:])
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