#! /bin/sh
# $Id$
# This "reautoconf" script found at the root of the TeX Live source tree 
# runs aclocal and autoconf (from PATH) in all relevant directories.
#
# Copyright 2008 Karl Berry.
# Copyright 2005 Olaf Weber.
# Copyright 2004 - 2009 Peter Breitenlohner.
#
# 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 3 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, see <http://www.gnu.org/licenses/>.

unset CDPATH

usage="Usage: $0 [OPTION]... [DIR]...
  Run \`autoreconf --no-recursive' in the directories DIR...
  (default all) of the TeX Live source tree.

Options:
  -h, --help      display this help and exit successfully
  -n, --dry-run   don't run any commands; just print them
  -q, --quiet     don't echo commands
  -v, --verbose   verbosely report processing (default)

Environment variables:
  TL_AUTOCONF:   program to use instead of autoconf from PATH
  TL_AUTOHEADER: program to use instead of autoheader from PATH
  TL_AUTOMAKE:   program to use instead of automake from PATH
  TL_ACLOCAL:    program to use instead of aclocal from PATH"

do_cmd=eval
do_say=echo
verbose=-v

list=

for option
do
  case $option in
    -h | --help) echo "$usage"; exit 0
      ;;
    -n | --dry-run) do_cmd=:
      ;;
    -q | --quiet) do_say=:; verbose=
      ;;
    -v | --verbose) do_say=echo; verbose=-v
      ;;
    -*) echo "$0: *** unrecognized option \`$option'"
      echo "$usage"; exit 1
      ;;
    *) list="$list $option"
      ;;
  esac
done

[ "$do_cmd" = : ] && do_say=echo	# -n implies -v

[ -f ./m4/kpse-setup.m4 ] || {
	echo "$0: *** can't find ./m4/kpse-setup.m4 (from `pwd`)" >&2
	exit 1
}

: ${TL_AUTOCONF=autoconf}
echo "$0: using \"$TL_AUTOCONF\" = `$TL_AUTOCONF --version | sed 1q`"
: ${TL_AUTOHEADER=autoheader}
echo "$0: using \"$TL_AUTOHEADER\" = `$TL_AUTOHEADER --version | sed 1q`"
: ${TL_AUTOMAKE=automake}
echo "$0: using \"$TL_AUTOMAKE\" = `$TL_AUTOMAKE --version | sed 1q`"
: ${TL_ACLOCAL=aclocal}
echo "$0: using \"$TL_ACLOCAL\" = `$TL_ACLOCAL --version | sed 1q`"
echo "$0:       if you want to use different versions, set TL_AUTOCONF,"
echo "$0:               TL_AUTOHEADER, TL_AUTOMAKE, and/or TL_ACLOCAL."

# Give users a chance to quit here
# and set TL_AUTOCONF, TL_AUTOHEADER, TL_AUTOMAKE, and/or TL_ACLOCAL
$do_cmd sleep 5

AUTOCONF=$TL_AUTOCONF
AUTOHEADER=$TL_AUTOHEADER
AUTOMAKE=$TL_AUTOMAKE
ACLOCAL=$TL_ACLOCAL
export AUTOCONF AUTOHEADER AUTOMAKE ACLOCAL

do_it () {
  $do_say "$0: running \"$@\""
  $do_cmd "$@"
}

if test "x$list" = x; then
  list=". auxdir/auxsub libs utils texk `find libs utils texk -type d -name ac |
    sed 's,/ac\$,,'`"
fi

# Autoreconf in all directories
for dir in $list; do
  # Remove trailing slash from shell filename completion
  dir=`echo $dir | sed 's,/\$,,'`
  if test ! -d "$dir"; then
    echo "$0: $dir not a directory, skipping." >&2
    continue
  fi
  if test ! -f "$dir/configure.ac"; then
    echo "$0: $dir/configure.ac: no such file, skipping." >&2
    continue
  fi
  if test -f "$dir/ac/withenable.ac"; then
    extra_dirs=`grep 'dnl extra_dirs = ' $dir/ac/withenable.ac |
      sed 's,^.*= ,,'`
  else
    extra_dirs=
  fi
  do_it autoreconf $verbose --no-recursive $dir $extra_dirs
done

echo "$0: done."