#!/bin/bash
#
# Copyright (C) 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994,
#     1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
#     2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014,
#     2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022 Massachusetts
#     Institute of Technology
#
# This program 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 2 of the License, or (at
# your option) any later version.
#
# This program 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, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
# 02110-1301, USA.

# inputs: git source tree
# outputs: changelog, source tar

system_args ()
{
    (( ${#} <= 2 )) || usage
    DIST_TYPE=${1:-standard}
    GIT_BRANCH=${2:-master}
}
ARGS_FUNCTION=system_args

system_usage ()
{
    echo "usage: ${PROGRAM} TYPE [BRANCH]"
    standard_args_usage
    echo "  BRANCH is the git branch to use"
}
USAGE_FUNCTION=system_usage

. "$(dirname "${0}")"/shared.sh
reset_output_dir

GIT_REPO=https://git.savannah.gnu.org/git/"${PROJECT_NAME}".git

notify "Cloning the source tree"
run_command "${SRC_OUT}"-clone . git clone -b "${GIT_BRANCH}" "${GIT_REPO}"
if [[ -x /usr/lib/git-core/git-restore-mtime ]]; then
    run_command "${SRC_OUT}"-mtime "${PROJECT_NAME}" git restore-mtime
fi
cleanup_file "${PROJECT_NAME}"

generate_changelog ()
{
    my_rm_f ../"${CHANGELOG}"
    git log --name-status > ../"${CHANGELOG}"
    make_read_only ../"${CHANGELOG}"
}

notify "Creating the changelog"
run_command "${SRC_OUT}"-changelog "${PROJECT_NAME}" generate_changelog
my_rm_rf "${PROJECT_NAME}"/.git

notify "Setting release number"
set_release_vars "${PROJECT_NAME}"
my_mv "${PROJECT_NAME}" "${DIST_DIR}"
cleanup_file "${DIST_DIR}"

notify "Configuring the source tree"
run_command "${SRC_OUT}"-config "${DIST_DIR}"/src ./Setup.sh
run_command_append "${SRC_OUT}"-config "${DIST_DIR}"/doc ./bootstrap

notify "Creating archive file"
make_tar_file "${SRC_OUT}" "${DIST_DIR}"

notify "Cleaning up"
my_rm_rf "${PROJECT_NAME}"/"${DIST_DIR}"

cleanup_temp_files
notify_finished
