chore: import upstream snapshot with attribution

decoding/GAD/scripts/constraints/validate.py

@@ -0,0 +1,34 @@
+#!/usr/bin/env python3
+#
+# Copyright (c) Facebook, Inc. and its affiliates.
+#
+# This source code is licensed under the MIT license found in the
+# LICENSE file in the root directory of this source tree.
+
+import sys
+
+
+"""Reads in a fairseq output file, and verifies that the constraints
+(C- lines) are present in the output (the first H- line). Assumes that
+constraints are listed prior to the first hypothesis.
+"""
+
+constraints = []
+found = 0
+total = 0
+for line in sys.stdin:
+    if line.startswith("C-"):
+        constraints.append(line.rstrip().split("\t")[1])
+    elif line.startswith("H-"):
+        text = line.split("\t")[2]
+
+        for constraint in constraints:
+            total += 1
+            if constraint in text:
+                found += 1
+            else:
+                print(f"No {constraint} in {text}", file=sys.stderr)
+
+        constraints = []
+
+print(f"Found {found} / {total} = {100 * found / total:.1f}%")