#! /bin/sh

# Bootstrap 'tar' 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.

# URL of our text domain page in Translation Project
TP_URL="http://www2.iro.umontreal.ca/~gnutra/po/maint/tar/"

usage() {
 cat <<EOF
 usage: $0 [--gnulib-srcdir=DIR][--cvs-auth=AUTH-METHOD][--cvs-user=USERNAME][--no-po]
 Options are:
 --gnulib-srcdir=DIRNAME      Specify the local directory where gnulib
                              sources reside. Use this if you already
                              have gnulib sources on your machine, and
                              do not want to waste your bandwidth dowloading
                              them again.
 --cvs-auth=METHOD            Set the CVS access method used for downloading
                              gnulib files. METHOD is one of the keywords
                              accepted by cvs -d option (see info cvs
                              repository).
 --cvs-user=USERNAME          Set the CVS username to be used when accessing
                              the gnulib repository.
 --no-po                      Do not download po files.

Running without arguments will suffice in most cases. It is equivalent
to

    ./bootstrap --cvs-auth=ext --cvs-user=anoncvs

EOF
}

# Parse options.

DOWNLOAD_PO=yes
for option
do
  case $option in
  --help)
    usage
    exit;;
  --gnulib-srcdir=*)
    GNULIB_SRCDIR=`expr "$option" : '--gnulib-srcdir=\(.*\)'`;;
  --cvs-auth=*)
    CVS_AUTH=`expr "$option" : '--cvs-auth=\(.*\)'`;;
  --cvs-user=*)
    CVS_USER=`expr "$option" : '--cvs-user=\(.*\)'`;;
  --no-po)
    DOWNLOAD_PO=no;;
  *)
    echo >&2 "$0: $option: unknown option"
    exit 1;;
  esac
done

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

build_cvs_prefix() {
  CVS_PREFIX=:${1}:
  if [ "${2}" != - ]; then
    CVS_PREFIX=${CVS_PREFIX}${2}@
  fi
  if [ "$1" = "ext" ]; then
    if [ -z "${CVS_RSH}" ]; then
       CVS_RSH=ssh
       export CVS_RSH
    fi
  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
    -)       build_cvs_prefix ext anoncvs;;
    pserver) build_cvs_prefix $CVS_AUTH ${CVS_USER:-anoncvs};;
    gserver|server)
	     build_cvs_prefix $CVS_AUTH ${CVS_USER--};;
    ext)     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='
alloca
argmatch
backupfile
dirname
error
exclude
fileblocks
fnmatch-gnu
ftruncate
full-write
getdate
getline
getopt
gettext
gettime
hash
human
lchown
memset
modechange
obstack
quote
quotearg
rmdir
safe-read
save-cwd
savedir
stdbool
stpcpy
strtol
strtoul
timespec
unlocked-io
utime
xalloc
xgetcwd
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/codeset.m4) continue;;
  m4/intdiv0.m4) continue;;
  m4/inttypes-pri.m4) continue;;
  m4/isc-posix.m4) continue;;
  m4/lcmessage.m4) continue;;
  m4/onceonly_2_57.m4) dest=m4/onceonly.m4;;
  # These will be overwritten by autopoint, which still uses
  # old jm_.* macro names, so we have to keep both copies.
  m4/ulonglong.m4) dest=m4/ulonglong_gl.m4;;
  m4/inttypes_h.m4) dest=m4/inttypes_h_gl.m4;;
  m4/stdint_h.m4) dest=m4/stdint_h_gl.m4;;
  m4/uintmax_t.m4) dest=m4/uintmax_t_gl.m4;;
  esac

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

echo "$0: Creating m4/gnulib.m4"
(echo "# This file is generated automatically. Please, do not edit."
 echo "#"
 echo "AC_DEFUN([tar_GNULIB],["
 for gnulib_module in $gnulib_modules; do
    echo "# $gnulib_module"
    $GNULIB_SRCDIR/gnulib-tool --extract-autoconf-snippet $gnulib_module
 done | sed '/AM_GNU_GETTEXT/d'
 echo "])") > ./m4/gnulib.m4

echo "$0: Creating lib/Makefile.am"
(cat lib/Makefile.tmpl
 
 for gnulib_module in $gnulib_modules; do
    echo "# $gnulib_module"
    $GNULIB_SRCDIR/gnulib-tool --extract-automake-snippet $gnulib_module
 done | sed 's/lib_SOURCES/libtar_a_SOURCES/g' ) > lib/Makefile.am

# Get translations.

if test "$DOWNLOAD_PO" = "yes"; then
  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 $TP_URL &&
    ls *.po | sed 's/\.po$//' >LINGUAS
  ) || exit
fi

# Reconfigure, getting other files.

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


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