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"""
Part of the BlackStar filesystem (bsfs) module.
A copy of the license is provided with the project.
Author: Matthias Baumgartner, 2022
"""
# imports
import argparse
import json
import sys
import typing
# bsfs imports
from bsfs.utils import errors
# exports
__all__: typing.Sequence[str] = (
'main',
)
## code ##
def init_sparql_store(user) -> typing.Any:
"""Initialize a SparqlStore backend. Returns a configuration to load it."""
# nothing to do for non-persistent store
# return config to storage
return {
'Graph': {
'user': user,
'backend': {
'SparqlStore': {},
},
}
}
def main(argv):
"""Create a new bsfs storage structure."""
parser = argparse.ArgumentParser(description=main.__doc__, prog='init')
# global arguments
parser.add_argument('--user', type=str, default='http://example.com/me',
help='Default user.')
parser.add_argument('--output', type=str, default=None,
help='Write the config to a file instead of standard output.')
#parser.add_argument('--schema', type=str, default=None,
# help='Initial schema.')
# storage selection
parser.add_argument('store', choices=('sparql', ),
help='Which storage to initialize.')
# storage args
# parse args
args = parser.parse_args(argv)
# initialize selected storage
if args.store == 'sparql':
config = init_sparql_store(args.user)
else:
raise errors.UnreachableError()
# print config
if args.output is not None:
with open(args.output, mode='wt', encoding='UTF-8') as ofile:
json.dump(config, ofile)
else:
json.dump(config, sys.stdout)
## main ##
if __name__ == '__main__':
main(sys.argv[1:])
## EOF ##
|
