Script: add UpdateCopyrightYear.sh

Source/Script/UpdateCopyrightYear.sh

@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -ex
+script_dir="$(dirname "$0")"
+toplvl_dir="$(realpath "$script_dir/../../")"
+
+curr_year=$(date "+%Y")
+prev_year=$(($curr_year - 1))
+
+dirs=(
+	"$toplvl_dir/Source/RMG-Core"
+	"$toplvl_dir/Source/RMG"
+	"$toplvl_dir/Source/RMG-Input"
+	"$toplvl_dir/Source/RMG-Audio"
+)
+
+for dir in ${dirs[@]}
+do
+	if [[ "$(git diff --name-only "$dir" | wc -l)" != "0" ]]
+	then
+		echo "$dir cannot contain uncommitted changes!"
+		exit 1
+	fi
+done
+
+for dir in ${dirs[@]}
+do
+	find "$dir" -type f \
+		-exec sed -i "s|Copyright (C) 2020-$prev_year|Copyright (C) 2020-$curr_year|g" {} +
+
+	if [[ "$(git diff --name-only "$dir" | wc -l)" != "0" ]]
+	then
+		git add -u "$dir"
+		git commit -m "$(basename "$dir"): update copyright year"
+	fi
+done