#!/bin/sh
#
# setup-gettext - Provides compatibility with versions of gettext
#                 from the 0.10.x series and 0.11.x.
#
# Copyright (C) 2002 Christian Hammond.
#
# 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 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, write to the Free
# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA  02111-1307  USA
#

VERSION=0.1.3

VERBOSE=1

parse_gettext_version() {
	GETTEXT_VERSION=`$GETTEXT_TOOL --version | sed -n 's/^.*\([0-9]\+\)\.\([0-9]\+\)\.\([0-9]\+\).*$/\1.\2.\3/p'`
	GETTEXT_MAJOR_VERSION=`echo $GETTEXT_VERSION | sed -n 's/^\([0-9]\+\).*/\1/p'`
	GETTEXT_MINOR_VERSION=`echo $GETTEXT_VERSION | sed -n 's/^[0-9]\+\.\([0-9]\+\).*/\1/p'`
	GETTEXT_MICRO_VERSION=`echo $GETTEXT_VERSION | sed -n 's/^[0-9]\+\.[0-9]\+\.\([0-9]\+\).*/\1/p'`
}

find_gettext() {
	GETTEXT_TOOL=autopoint
	
	(autopoint --version) < /dev/null > /dev/null 2>&1 || {
		GETTEXT_TOOL=gettextize

		(gettextize --version) < /dev/null > /dev/null 2>&1 || {
			GETTEXT_TOOL=
		}
	}
}

install() {
	[ -f configure.in ] && {
		cp configure.in .tmp-configure.in
		sed -e 's/^AM_GNU_GETTEXT\(.*\)$/AM_GNU_GETTEXT\1\
AM_GNU_GETTEXT_VERSION(0.10.40)/' < .tmp-configure.in > configure.in
		rm .tmp-configure.in
	}

	[ -f configure.ac ] && {
		cp configure.ac .tmp-configure.ac
		sed -e 's/^AM_GNU_GETTEXT\(.*\)$/AM_GNU_GETTEXT\1\
AM_GNU_GETTEXT_VERSION(0.10.40)/' < .tmp-configure.ac > configure.ac
		rm .tmp-configure.ac
	}

	[ -f autogen.sh ] && {
		cp autogen.sh .tmp-autogen.sh
		sed -e 's/\(gettextize\|autopoint\) --version/.\/setup-gettext --gettext-tool/1' -e 's/^\(echo.*|[\t ]*\)\?\(gettextize\|autopoint\) -.*$/.\/setup-gettext/1' < .tmp-autogen.sh > autogen.sh
		rm .tmp-autogen.sh
	}

	echo 'AC_DEFUN([AM_GNU_GETTEXT_VERSION], [])' >> acinclude.m4
}

backup_m4() {
	[ -d m4 ] && mv m4 m4~
}

restore_m4() {
	[ -d m4~ ] && {
		rm -rf m4
		mv m4~ m4
	}
}

restore_files() {
	[ -f configure.in~ ] && mv -f configure.in~ configure.in
	[ -f configure.ac~ ] && mv -f configure.ac~ configure.ac
	[ -f Makefile.am~ ]  && mv -f Makefile.am~  Makefile.am
}

abort() {
	restore_files
	restore_m4

	exit 1
}

# Main code

find_gettext

# See if a version of gettext and its tools are installed.
if [ x$GETTEXT_TOOL = x ]; then
	echo
	echo "You do not have a version of gettext installed."
	echo "Please download one from your local package repository or"
	echo "from ftp://ftp.gnu.org/pub/gnu/gettext/"
	echo
	exit 1
fi

parse_gettext_version

NUMVAR=$#

if [ $NUMVAR -gt 0 ]; then
	if [ $NUMVAR -gt 1 ]; then
		echo "Only one option at a time!"
		exit 1

	elif [ $1 = "--gettext-tool" ]; then
		echo $GETTEXT_TOOL
		exit 0

	elif [ $1 = "--help" ]; then
		echo "setup-gettext v$VERSION"
		echo "Usage:"
		echo "   --gettext-tool           Returns gettextize or autopoint, depending"
		echo "                            on the version of gettext installed."
		echo "   --gettext-version        Returns the version of gettext installed."
		echo "   --gettext-major-version  Returns the major version of gettext installed."
		echo "   --gettext-minor-version  Returns the minor version of gettext installed."
		echo "   --gettext-micro-version  Returns the micro version of gettext installed."
		echo "   --help                   Displays this help screen."
		echo
		exit 0

	elif [ $1 = "--version" ]; then
		echo $VERSION
		exit 0

	elif [ $1 = "--gettext-version" ]; then
		echo $GETTEXT_VERSION
		exit 0

	elif [ $1 = "--gettext-major-version" ]; then
		echo $GETTEXT_MAJOR_VERSION
		exit 0

	elif [ $1 = "--gettext-minor-version" ]; then
		echo $GETTEXT_MINOR_VERSION
		exit 0

	elif [ $1 = "--gettext-micro-version" ]; then
		echo $GETTEXT_MICRO_VERSION
		exit 0
	
	elif [ $1 = "--install" ]; then
		install
		echo "setup-gettext installed."
		exit 0

	elif [ $1 = "--happy-url" ]; then
		echo http://gaim.sf.net/forkgettext.jpg
		exit 0
	
	elif [ $1 = "--verbose" ]; then
		VERBOSE=1

	else
		echo "Invalid option '$1'"
		exit 1
	fi
fi

# Okay, run the main stuff
if [ "$GETTEXT_TOOL" = "autopoint" ]; then
	backup_m4
	[ $VERBOSE -eq 1 ] && echo "  autopoint --force"
	echo n | autopoint --force || abort
	restore_m4
else
	if [ $GETTEXT_MINOR_VERSION -eq 11 ]; then
		backup_m4

		# Gettext is pure evil. It DEMANDS that we press Return no matter
		# what. This gets rid of their happy "feature" of doom.
		[ $VERBOSE -eq 1 ] && \
			echo "  gettextize --copy --force --intl --no-changelog"

		sed 's:read .*< /dev/tty::' `which gettextize` > .temp-gettextize
		chmod +x .temp-gettextize
		echo n | ./.temp-gettextize --copy --force --intl --no-changelog || abort
		rm .temp-gettextize

		restore_files
		restore_m4

		[ -f po/Makevars.template ] && mv po/Makevars.template po/Makevars
	else
		[ $VERBOSE -eq 1 ] && echo "  gettextize --copy --force --intl"
		echo n | gettextize --copy --force --intl || exit;
	fi
fi
