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#!/usr/bin/env python3
"""
Note: this is *not* the tool used to generate "official" metadata dumps; that
tool is written in rust and runs on the production infrastructure for speed.
These scripts are just a demonstration of how the API *could* be scraped
without permission by an third party.
"""
import sys
import json
import argparse
import fatcat_client
from fatcat_client.rest import ApiException
from fatcat_client import ReleaseEntity
from fatcat_tools import uuid2fcid, entity_from_json, entity_to_dict, \
release_to_elasticsearch, public_api
def run_export_releases(args):
api = args.api
for line in args.ident_file:
ident = uuid2fcid(line.split()[0])
release = api.get_release(ident=ident, expand="all")
args.json_output.write(
json.dumps(entity_to_dict(release)) + "\n")
def run_transform_releases(args):
for line in args.json_input:
line = line.strip()
if not line:
continue
release = entity_from_json(line, ReleaseEntity)
args.json_output.write(
json.dumps(release_to_elasticsearch(release)) + '\n')
def run_export_changelog(args):
api = args.api
end = args.end
if end is None:
latest = api.get_changelog(limit=1)[0]
end = latest.index
for i in range(args.start, end):
entry = api.get_changelog_entry(index=i)
args.json_output.write(
json.dumps(entity_to_dict(entry)) + "\n")
def main():
parser = argparse.ArgumentParser()
parser.add_argument('--debug',
action='store_true',
help="enable debugging interface")
parser.add_argument('--host-url',
default="http://localhost:9411/v0",
help="connect to this host/port")
subparsers = parser.add_subparsers()
sub_releases = subparsers.add_parser('releases')
sub_releases.set_defaults(func=run_export_releases)
sub_releases.add_argument('ident_file',
help="TSV list of fatcat release idents to dump",
default=sys.stdin, type=argparse.FileType('r'))
sub_releases.add_argument('json_output',
help="where to send output",
default=sys.stdout, type=argparse.FileType('w'))
sub_transform_releases = subparsers.add_parser('transform-releases')
sub_transform_releases.set_defaults(func=run_transform_releases)
sub_transform_releases.add_argument('json_input',
help="JSON-per-line of release entities",
default=sys.stdin, type=argparse.FileType('r'))
sub_transform_releases.add_argument('json_output',
help="where to send output",
default=sys.stdout, type=argparse.FileType('w'))
sub_changelog = subparsers.add_parser('changelog')
sub_changelog.set_defaults(func=run_export_changelog)
sub_changelog.add_argument('--start',
help="index to start dumping at",
default=1, type=int)
sub_changelog.add_argument('--end',
help="index to stop dumping at (else detect most recent)",
default=None, type=int)
sub_changelog.add_argument('json_output',
help="where to send output",
default=sys.stdout, type=argparse.FileType('w'))
args = parser.parse_args()
if not args.__dict__.get("func"):
print("tell me what to do!")
sys.exit(-1)
args.api = public_api(args.host_url)
args.func(args)
if __name__ == '__main__':
main()
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