openrefine-client/refine.py

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#!/usr/bin/env python
"""
Script to provide a command line interface to a Refine server.
Examples,
refine --list # show list of Refine projects, ID: name
refine --export 1234... > project.tsv
refine --export --output=project.xls 1234...
2011-05-27 02:56:18 +02:00
refine --apply trim.json 1234...
"""
# Copyright (c) 2011 Paul Makepeace, Real Programmers. All rights reserved.
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>
import optparse
import os
import sys
import time
from google.refine import refine
PARSER = optparse.OptionParser(
usage='usage: %prog [--help | OPTIONS] [project ID/URL]')
PARSER.add_option('-H', '--host', dest='host',
help='Google Refine hostname')
PARSER.add_option('-P', '--port', dest='port',
help='Google Refine port')
PARSER.add_option('-o', '--output', dest='output',
help='Output filename')
# Options that are more like commands
PARSER.add_option('-l', '--list', dest='list', action='store_true',
help='List projects')
PARSER.add_option('-E', '--export', dest='export', action='store_true',
help='Export project')
PARSER.add_option('-f', '--apply', dest='apply',
help='Apply a JSON commands file to a project')
def list_projects():
"""Query the Refine server and list projects by ID: name."""
projects = refine.Refine(refine.RefineServer()).list_projects().items()
def date_to_epoch(json_dt):
"Convert a JSON date time into seconds-since-epoch."
return time.mktime(time.strptime(json_dt, '%Y-%m-%dT%H:%M:%SZ'))
projects.sort(key=lambda v: date_to_epoch(v[1]['modified']), reverse=True)
for project_id, project_info in projects:
print('{0:>14}: {1}'.format(project_id, project_info['name']))
def export_project(project, options):
"""Dump a project to stdout or options.output file."""
export_format = 'tsv'
if options.output:
ext = os.path.splitext(options.output)[1][1:] # 'xls'
if ext:
export_format = ext.lower()
output = open(options.output, 'wb')
else:
output = sys.stdout
output.writelines(project.export(export_format=export_format))
output.close()
def main():
"Main."
options, args = PARSER.parse_args()
if options.host:
refine.REFINE_HOST = options.host
if options.port:
refine.REFINE_PORT = options.port
if not options.list and len(args) != 1:
PARSER.print_usage()
if options.list:
list_projects()
if args:
project = refine.RefineProject(args[0])
if options.apply:
response = project.apply_operations(options.apply)
if response != 'ok':
print >>sys.stderr, 'Failed to apply %s: %s' % (options.apply,
response)
if options.export:
export_project(project, options)
return project
if __name__ == '__main__':
# return project so that it's available interactively, python -i refine.py
project = main()