#! /bin/sh

# Bootstrap this package from CVS.

# Copyright (C) 2003, 2004 Free Software Foundation, Inc.

# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

# Written by Paul Eggert.

package=diffutils

# Parse options.

for option
do
  case $option in
  --help)
    echo "$0: usage: $0 [--gnulib-srcdir=DIR] [--cvs-auth=AUTH-METHOD] [--cvs-user=USERNAME] [--skip-po]"
    exit;;
  --gnulib-srcdir=*)
    GNULIB_SRCDIR=`expr "$1" : '--gnulib-srcdir=\(.*\)'`;;
  --cvs-auth=*)
    CVS_AUTH=`expr "$1" : '--cvs-auth=\(.*\)'`;;
  --cvs-user=*)
    CVS_USER=`expr "$1" : '--cvs-user=\(.*\)'`;;
  --skip-po)
    SKIP_PO=t;;
  *)
    echo >&2 "$0: $option: unknown option"
    exit 1;;
  esac
done

echo "$0: Bootstrapping CVS $package..."

build_cvs_prefix() {
  CVS_PREFIX=:${1}:
  if [ "${2}" != - ]; then
    CVS_PREFIX=${CVS_PREFIX}${2}@
  fi
}

# Get gnulib files.

case ${GNULIB_SRCDIR--} in
-)
  if [ ! -d gnulib ]; then
    echo "$0: getting gnulib files..."

    trap exit 1 2 13 15
    trap 'rm -fr gnulib; exit 1' 0

    case "${CVS_AUTH--}" in
    -)       : ${CVS_RSH:?}
             CVS_PREFIX="";;
    pserver) build_cvs_prefix $CVS_AUTH ${CVS_USER:-anoncvs};;
    gserver|server)
             build_cvs_prefix $CVS_AUTH ${CVS_USER--};;
    ext)     : ${CVS_RSH:?}
             build_cvs_prefix $CVS_AUTH ${CVS_USER--};;
    *)       echo "$0: Unknown CVS access method" >&2
             exit 1;;
    esac
    if [ "${CVS_AUTH--}" = "pserver" ]; then
      cvs -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib login || exit
    fi
    cvs -q -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/gnulib co gnulib || exit

    trap 0
  fi
  GNULIB_SRCDIR=gnulib
esac

<$GNULIB_SRCDIR/gnulib-tool || exit

gnulib_modules='
c-stack
dirname
error
exclude
exit
exitfail
file-type
fnmatch-gnu
getopt
hard-locale
inttostr
mkstemp
posixver
regex
strcase
strftime
strtoumax
unlocked-io
version-etc
xalloc
xstrtoumax
'

previous_gnulib_modules=
while [ "$gnulib_modules" != "$previous_gnulib_modules" ]; do
  previous_gnulib_modules=$gnulib_modules
  gnulib_modules=`
    (echo "$gnulib_modules"
     for gnulib_module in $gnulib_modules; do
       $GNULIB_SRCDIR/gnulib-tool --extract-dependencies $gnulib_module
     done) | sort -u
  `
done

gnulib_files=`
  (for gnulib_module in $gnulib_modules; do
     $GNULIB_SRCDIR/gnulib-tool --extract-filelist $gnulib_module
   done) | sort -u
`

gnulib_dirs=`echo "$gnulib_files" | sed 's,/[^/]*$,,' | sort -u`
mkdir -p $gnulib_dirs || exit

for gnulib_file in $gnulib_files; do
  dest=$gnulib_file

  case $gnulib_file in
  m4/onceonly_2_57.m4) dest=m4/onceonly.m4;;
  esac

  rm -f $dest &&
  echo "$0: Copying file $GNULIB_SRCDIR/$gnulib_file" &&
  cp -p $GNULIB_SRCDIR/$gnulib_file $dest || exit
done


# Get translations.

case $SKIP_PO in
'')
  echo "$0: getting translations into po..."
  (cd po &&
   rm -f dummy `ls | sed -n '/\.gmo$/p; /\.po/p'` &&
   wget -nv -nd -r -l 1 -A .po -C off \
     http://www2.iro.umontreal.ca/~gnutra/po/maint/$package/ &&
   ls *.po | sed 's/\.po$//' >LINGUAS
  ) || exit;;
esac


# Reconfigure, getting other files.

echo "$0: autoreconf --verbose --install --force ..."
autoreconf --verbose --install --force || exit


# Generate autoconf and automake snippets.

(echo '# This file is generated automatically by "bootstrap".' &&
 echo 'AC_DEFUN([GNULIB_AUTOCONF_SNIPPET],[' &&
 $GNULIB_SRCDIR/gnulib-tool --extract-autoconf-snippet $gnulib_modules &&
 echo '])'
) >m4/gnulib.m4 || exit

(echo '# This file is generated automatically by "bootstrap".' &&
 $GNULIB_SRCDIR/gnulib-tool --extract-automake-snippet $gnulib_modules
) >lib/gnulib.mk || exit


echo "$0: done.  Now you can run './configure'."