Modify export_schema cli to include an extra EOF newline when --output option is provided (#3896)

* Modify export_schema cli to include an extra EOF newline when --output option is provided.

* Update strawberry/cli/commands/export_schema.py

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>

---------

Co-authored-by: sourcery-ai[bot] <58596630+sourcery-ai[bot]@users.noreply.github.com>

Author: yunkaiz

RELEASE.md

@@ -0,0 +1,3 @@
+Release type: patch
+
+This release modifies export-schema cli to include an EOF newline if --output option is provided. This allows better review in github.com for the generated schema files.

strawberry/cli/commands/export_schema.py

@@ -32,7 +32,7 @@ def export_schema(
     schema_text = print_schema(schema_symbol)
 
     if output:
-        Path(output).write_text(schema_text)
+        Path(output).write_text(schema_text + "\n", encoding="utf-8")
         typer.echo(f"Schema exported to {output}")
     else:
         print(schema_text)  # noqa: T201

tests/cli/test_export_schema.py

@@ -94,5 +94,5 @@ def test_output_option(cli_app: Typer, cli_runner: CliRunner, tmp_path):
             "type User {\n"
             "  name: String!\n"
             "  age: Int!\n"
-            "}"
+            "}\n"
         )