mirror of
https://github.com/graphql-python/graphene-django.git
synced 2024-11-22 17:47:12 +03:00
116 lines
3.6 KiB
Python
116 lines
3.6 KiB
Python
import os
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import importlib
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import json
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import functools
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from django.core.management.base import BaseCommand, CommandError
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from django.utils import autoreload
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from graphql import print_schema
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from graphene_django.settings import graphene_settings
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class CommandArguments(BaseCommand):
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def add_arguments(self, parser):
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parser.add_argument(
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"--schema",
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type=str,
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dest="schema",
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default=graphene_settings.SCHEMA,
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help="Django app containing schema to dump, e.g. myproject.core.schema.schema",
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)
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parser.add_argument(
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"--out",
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type=str,
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dest="out",
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default=graphene_settings.SCHEMA_OUTPUT,
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help="Output file, --out=- prints to stdout (default: schema.json)",
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)
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parser.add_argument(
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"--indent",
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type=int,
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dest="indent",
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default=graphene_settings.SCHEMA_INDENT,
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help="Output file indent (default: None)",
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)
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parser.add_argument(
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"--watch",
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dest="watch",
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default=False,
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action="store_true",
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help="Updates the schema on file changes (default: False)",
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)
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class Command(CommandArguments):
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help = "Dump Graphene schema as a JSON or GraphQL file"
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can_import_settings = True
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requires_system_checks = []
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def save_json_file(self, out, schema_dict, indent):
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with open(out, "w") as outfile:
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json.dump(schema_dict, outfile, indent=indent, sort_keys=True)
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def save_graphql_file(self, out, schema):
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with open(out, "w", encoding="utf-8") as outfile:
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outfile.write(print_schema(schema.graphql_schema))
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def get_schema(self, schema, out, indent):
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schema_dict = {"data": schema.introspect()}
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if out == "-" or out == "-.json":
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self.stdout.write(json.dumps(schema_dict, indent=indent, sort_keys=True))
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elif out == "-.graphql":
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self.stdout.write(print_schema(schema))
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else:
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# Determine format
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_, file_extension = os.path.splitext(out)
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if file_extension == ".graphql":
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self.save_graphql_file(out, schema)
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elif file_extension == ".json":
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self.save_json_file(out, schema_dict, indent)
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else:
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raise CommandError(
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'Unrecognised file format "{}"'.format(file_extension)
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)
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style = getattr(self, "style", None)
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success = getattr(style, "SUCCESS", lambda x: x)
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self.stdout.write(
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success("Successfully dumped GraphQL schema to {}".format(out))
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)
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def handle(self, *args, **options):
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options_schema = options.get("schema")
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if options_schema and type(options_schema) is str:
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module_str, schema_name = options_schema.rsplit(".", 1)
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mod = importlib.import_module(module_str)
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schema = getattr(mod, schema_name)
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elif options_schema:
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schema = options_schema
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else:
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schema = graphene_settings.SCHEMA
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out = options.get("out") or graphene_settings.SCHEMA_OUTPUT
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if not schema:
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raise CommandError(
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"Specify schema on GRAPHENE.SCHEMA setting or by using --schema"
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)
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indent = options.get("indent")
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watch = options.get("watch")
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if watch:
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autoreload.run_with_reloader(
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functools.partial(self.get_schema, schema, out, indent)
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)
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else:
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self.get_schema(schema, out, indent)
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