chore: import upstream snapshot with attribution

decoding/GAD/scripts/sacrebleu.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+if [ $# -ne 4 ]; then
+    echo "usage: $0 TESTSET SRCLANG TGTLANG GEN"
+    exit 1
+fi
+
+TESTSET=$1
+SRCLANG=$2
+TGTLANG=$3
+
+GEN=$4
+
+if ! command -v sacremoses &> /dev/null
+then
+    echo "sacremoses could not be found, please install with: pip install sacremoses"
+    exit
+fi
+
+grep ^H $GEN \
+| sed 's/^H\-//' \
+| sort -n -k 1 \
+| cut -f 3 \
+| sacremoses detokenize \
+> $GEN.sorted.detok
+
+sacrebleu --test-set $TESTSET --language-pair "${SRCLANG}-${TGTLANG}" < $GEN.sorted.detok