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import pathlib
from django.core.management.base import BaseCommand, CommandError
from strawberry import Schema
from strawberry.printer import print_schema
from strawberry.utils.importer import import_module_symbol
class Command(BaseCommand):
help = "Export the graphql schema"
def add_arguments(self, parser):
parser.add_argument("schema", nargs=1, type=str, help="The schema location")
parser.add_argument(
"--path",
nargs="?",
type=str,
help="Optional path to export",
)
def handle(self, *args, **options):
try:
schema_symbol = import_module_symbol(
options["schema"][0],
default_symbol_name="schema",
)
except (ImportError, AttributeError) as e:
raise CommandError(str(e)) from e
if not isinstance(schema_symbol, Schema):
raise CommandError("The `schema` must be an instance of strawberry.Schema")
schema_output = print_schema(schema_symbol)
path = options.get("path")
if path:
pathlib.Path(path).write_text(schema_output, encoding="utf-8")
else:
self.stdout.write(schema_output)
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