#!/bin/sh
# Fetch files maintained in other GNU repositories.

scriptversion=2018-03-24.21; # UTC

# Copyright © 2018 Mathieu Lirzin <mthl@gnu.org>
#
# 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, 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, see <https://www.gnu.org/licenses/>.

set -e

WGET=wget

# Git repositories on Savannah.
git_sv_host='git.savannah.gnu.org'

# Some repositories we sync files from.
sv_git_am="https://${git_sv_host}/gitweb/?p=automake.git;a=blob_plain;hb=HEAD;f="
sv_git_gl="https://${git_sv_host}/gitweb/?p=gnulib.git;a=blob_plain;hb=HEAD;f="

# Files that we fetch and which we compare against.
# Note that the 'lib/COPYING' file must still be synced by hand.
FETCHFILES="
  ${sv_git_am}contrib/test-driver.scm
  ${sv_git_gl}build-aux/gitlog-to-changelog
  ${sv_git_gl}build-aux/do-release-commit-and-tag
  ${sv_git_gl}build-aux/gnu-web-doc-update
  ${sv_git_gl}build-aux/gnupload
"

usage="Usage: $0

fetch files maintained in other GNU repositories
"

while test -n "$1"
do
  case $1 in
  -*)
    case $1 in
    --help)
      echo "$usage"
      exit $?
      ;;
    --version)
      echo "gnu-fetch $scriptversion"
      exit $?
      ;;
    --)
      shift
      break
      ;;
    -*)
      echo "$0: Unknown option '$1', try '$0 --help'" 1>&2
      exit 1
      ;;
    esac
    ;;
  esac
  shift
done

rm -rf Fetchdir
mkdir Fetchdir
for url in ${FETCHFILES}
do
  file=`printf '%s\n' "$url" | sed 's|^.*/||; s|^.*=||'`
  "$WGET" -nv "$url" -O "Fetchdir/$file" || exit 1
  if cmp "Fetchdir/$file" "$file" >/dev/null; then
      : Nothing to do
  else
    echo "$0: updating file $file"
    cp "Fetchdir/$file" "$file" || exit 1
  fi
done
rm -rf Fetchdir

exit 0

# Local variables:
# eval: (add-hook 'before-save-hook 'time-stamp)
# time-stamp-start: "scriptversion="
# time-stamp-format: "%:y-%02m-%02d.%02H"
# time-stamp-time-zone: "UTC0"
# time-stamp-end: "; # UTC"
# End: