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#! /bin/sh

# Copyright (C) 2003, 2004, 2005 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 and Sergey Poznyakoff.

# URL of our text domain page in Translation Project
TP_URL="http://www.iro.umontreal.ca/translation/maint/cflow/"

# Ensure file names are sorted consistently across platforms;
# e.g., m4/ulonglong_gl.m4 should follow m4/ulonglong.m4.
LC_ALL=C
export LC_ALL

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.

The following two options are reserved for future use:
			      
 --no-po                      Do not download po files.
 --update-po[=LANG]           Update po file(s) and exit.

If the file \`.bootstrap' exists in the current working directory, its
contents is read, comments and empty lines removed, shell variables expanded
and the result is prepended to the command line options.

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

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

EOF
}

update_po() {
  if [ $# = 1 ]; then
    case $1 in
    *.po)  POFILE=$1;;
    *)     POFILE=${1}.po;;
    esac
    echo "$0: getting translation for $1..."
    (cd po;
     wget -r --cache=off -O $POFILE $TP_URL/$POFILE || exit
     LANG=`expr $POFILE : '\(.*\)\.po'`
     if ! grep -q $LANG LINGUAS; then
	mv LINGUAS LINGUAS.$$
	(echo $LANG; cat LINGUAS.$$) | sort > LINGUAS
     fi)
  else
    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 $TP_URL &&
      rm -f index.html index.html.[0-9]*
      ls *.po | sed 's/\.po$//' >LINGUAS
    ) || exit
  fi
}

# Read configuration file
if [ -r .bootstrap ]; then
  echo "$0: Reading configuration file .bootstrap"
  eval set -- "`sed 's/#.*$//;/^$/d' .bootstrap | tr '\n' ' '` $*"
fi

# Parse options.

DOWNLOAD_PO=no
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;;
  --update-po=*)
    DOWNLOAD_PO=`expr "$option" : '--update-po=\(.*\)'`;;
  --update-po)
    DOWNLOAD_PO=only;;
  *)
    echo >&2 "$0: $option: unknown option"
    exit 1;;
  esac
done

case $DOWNLOAD_PO in
only)	update_po
	exit 0
	;;
no|yes) ;;
*)	update_po $DOWNLOAD_PO
	exit 0
esac

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

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
}

# checkout package
checkout() {
  if [ ! -d $1 ]; then
    echo "$0: getting $1 files..."

    trap exit 1 2 13 15
    trap 'rm -fr $1; 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/$1 login || exit
    fi
    cvs -q -d ${CVS_PREFIX}subversions.gnu.org:/cvsroot/$1 co $1 || exit

    trap 0
  fi
}

# Prepare temporary module list
cat /dev/null > modlist.tmp
trap 'rm -f modlist.tmp' 0 1 2 13 15

get_modules() {
	sed '/^[ 	]*#/d;/^[ 	]*$/d' $* >> modlist.tmp
}

# copy_files srcdir dstdir
copy_files() {
  for file in `cat $1/DISTFILES`
  do
    case $file in
    "#*")  continue;;
    esac
    echo "$0: Copying file $1/$file"
    cp -p $1/$file $2/`expr $file : '.*/\(.*\)'`
  done
}

# Get gnulib files.

case ${GNULIB_SRCDIR--} in
-) checkout gnulib
   GNULIB_SRCDIR=gnulib
esac

<$GNULIB_SRCDIR/gnulib-tool || exit

get_modules build-aux/gnulib.modules

gnulib_modules=`sort -u modlist.tmp`
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 file in build-aux/*.m4; do
  dest=m4/`basename $file`

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

for gnulib_file in $gnulib_files; do
  case $gnulib_file in
  config/*) dest=`echo $gnulib_file | sed 's,config/,build-aux/,'`;;
  # These will be overwritten by autopoint, which still uses
  # old jm_.* macro names, so we have to keep both copies.
  m4/gettext.m4 | m4/glibc21.m4 | m4/inttypes_h.m4 | m4/lib-ld.m4 | \
  m4/lib-prefix.m4 | m4/po.m4 | m4/stdint_h.m4 | m4/uintmax_t.m4 | \
  m4/ulonglong.m4 | m4/longlong.m4)
           dest=`expr $gnulib_file : '\(.*\).m4'`_gl.m4;;
  *)       dest=$gnulib_file;;
  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([cflow_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"
(echo "# -*- buffer-read-only: t -*- vi: set ro:"
 echo "# This file is generated automatically from lib/Makefile.tmpl. Do not edit!"
 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/libcflow_a_SOURCES/g' ) > lib/Makefile.am

# Get translations.
if test "$DOWNLOAD_PO" = "yes"; then
  update_po
fi

# Reconfigure, getting other files.

echo "$0: autoreconf --verbose --install --force ..."
autoreconf --verbose --install --force || exit 1


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

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