#!/bin/sh
#
# Copyright (C) 2014-2022 Free Software Foundation, Inc.
# This file is part of GNU Make.
#
# Update GNU make copyrights using gnulib update-copyright

EXCLUDE='^\(\.[a-z].*\|.*/\.[a-z].*\|.*COPYING\|src/hash\.[ch]\|ChangeLog.*\|.*/ChangeLog.*\|INSTALL\|doc/make\.texi\|bootstrap\)$'

update=${UPDATE_COPYRIGHT:-${GNULIB_SRCDIR:-../../gnulib}/build-aux/update-copyright}

die () { echo "$*"; exit 1; }

getfiles () {
    git ls-files | grep -v "$EXCLUDE"
}

run () {
    cmd=$(command -v "$update") || die "Cannot locate update-copyright ($update)"
    test -x "$cmd" || die "Cannot locate update-copyright ($update)"

    force=false

    case $1 in
        (-v) getfiles | sort; exit 0 ;;
        (-f) force=true ;;
        (--) : ;;
        (-*) echo "usage: $0 [-v]"; exit 1 ;;
    esac

    if $force; then
        : just do it
    elif test ! -f src/makeint.h; then
        die "Run in the root of the GNU make workspace"
    elif test -f configure; then
        die "Run in a clean workspace (git clean -fdX)"
    fi

    # We use intervals
    export UPDATE_COPYRIGHT_USE_INTERVALS=1

    "$cmd" $(getfiles)

    echo "*** Update doc/make.texi copyright by hand!"
    echo "*** Update src/main.c:print_version() copyright by hand!"

    exit 0
}

run "$@"

# GNU Make is free software; you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free Software
# Foundation; either version 3 of the License, or (at your option) any later
# version.
#
# GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along with
# this program.  If not, see <http://www.gnu.org/licenses/>.