update-copyright.sh

#!/bin/bash
# Copyright (c) 2012-2021 Institut National des Sciences Appliquées de Lyon (INSA Lyon) and others
#
# This program and the accompanying materials are made available under the
# terms of the Eclipse Public License 2.0 which is available at
# http://www.eclipse.org/legal/epl-2.0.
#
# SPDX-License-Identifier: EPL-2.0

set -e

PROJECT_ROOT="$(dirname "$(realpath "$0")")"
COPYRIGHT_START='Copyright (c) 2012'

function change {
  local to="${1:?Give new year to use}"
  grep --null --recursive --fixed-regexp --files-with-match \
    --exclude-dir='\.git/' --exclude-dir='build' \
    "$COPYRIGHT_START" "$PROJECT_ROOT" \
    | xargs --null --max-lines=1 --verbose \
      sed -i "s/$COPYRIGHT_START-[0-9]\{4,4\}/$COPYRIGHT_START-$to/"
}

default_year=$(date +%Y)
change "${1:-$default_year}"