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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 argparse
import json
import sys
from fatcat_tools import entity_to_dict, public_api, uuid2fcid
def run_export_releases(args: argparse.Namespace) -> None:
for line in args.ident_file:
ident = uuid2fcid(line.split()[0])
release = args.api.get_release(ident=ident, expand="all")
args.json_output.write(
json.dumps(entity_to_dict(release), api_client=args.api.api_client) + "\n"
)
def run_export_changelog(args: argparse.Namespace) -> None:
end = args.end
if end is None:
latest = args.api.get_changelog(limit=1)[0]
end = latest.index
for i in range(args.start, end):
entry = args.api.get_changelog_entry(index=i)
args.json_output.write(
json.dumps(entity_to_dict(entry, api_client=args.api.api_client)) + "\n"
)
def main() -> None:
parser = argparse.ArgumentParser(formatter_class=argparse.ArgumentDefaultsHelpFormatter)
parser.add_argument(
"--fatcat-api-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_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.fatcat_api_url)
args.func(args)
if __name__ == "__main__":
main()
|
