fix: lint + ci

RELEASE.md

@@ -0,0 +1,3 @@
+Release type: minor
+
+Adds a new flag to `export-schema` command, `--output`, which allows the user to specify the output file. If unset (current behavior), the command will continue to print to stdout.

strawberry/cli/commands/export_schema.py

@@ -30,7 +30,7 @@ def export_schema(
     schema_text = print_schema(schema_symbol)
 
     if output:
-        with open(output, "w") as file:
+        with Path.open(output, "w") as file:
             file.write(schema_text)
         typer.echo(f"Schema exported to {output}")
     else:

tests/cli/test_export_schema.py

@@ -67,3 +67,20 @@ def test_invalid_schema_instance(cli_app: Typer, cli_runner: CliRunner):
 
     assert result.exit_code == 2
     assert expected_error in result.stdout.replace("\n", "")
+
+def test_output_option(cli_app: Typer, cli_runner: CliRunner, tmp_path):
+    selector = "tests.fixtures.sample_package.sample_module:schema"
+    output = tmp_path / "schema.graphql"
+    result = cli_runner.invoke(cli_app, ["export-schema", selector, "--output", str(output)])
+
+    assert result.exit_code == 0
+    assert output.read_text() == (
+        "type Query {\n"
+        "  user: User!\n"
+        "}\n"
+        "\n"
+        "type User {\n"
+        "  name: String!\n"
+        "  age: Int!\n"
+        "}"
+    )