chore: import upstream snapshot with attribution

libs/cli/langgraph_cli/util.py

@@ -0,0 +1,50 @@
+"""General-purpose utilities shared across the LangGraph CLI."""
+
+from collections.abc import Callable
+
+import click
+
+
+def clean_empty_lines(input_str: str):
+    return "\n".join(filter(None, input_str.splitlines()))
+
+
+def warn_non_wolfi_distro(
+    config_json: dict,
+    *,
+    emit: Callable[[str], None] | None = None,
+) -> None:
+    """Show warning if image_distro is not set to 'wolfi'.
+
+    When ``emit`` is provided, each warning line is sent through it (used by
+    callers that need JSON-aware output). Otherwise falls back to colored
+    ``click.secho`` output.
+    """
+    image_distro = config_json.get("image_distro", "debian")  # Default is debian
+    if image_distro == "wolfi":
+        return
+    if emit is not None:
+        emit(
+            "⚠️  Security Recommendation: Consider switching to Wolfi Linux for enhanced security."
+        )
+        emit(
+            "   Wolfi is a security-oriented, minimal Linux distribution designed for containers."
+        )
+        emit(
+            '   To switch, add \'"image_distro": "wolfi"\' to your langgraph.json config file.'
+        )
+        return
+    click.secho(
+        "⚠️  Security Recommendation: Consider switching to Wolfi Linux for enhanced security.",
+        fg="yellow",
+        bold=True,
+    )
+    click.secho(
+        "   Wolfi is a security-oriented, minimal Linux distribution designed for containers.",
+        fg="yellow",
+    )
+    click.secho(
+        '   To switch, add \'"image_distro": "wolfi"\' to your langgraph.json config file.',
+        fg="yellow",
+    )
+    click.secho("")  # Empty line for better readability