#!/bin/sh

#
# This script can be used to for checking out and updating
# a program with anonymous r/o CVS access.
#
# by Konstantin Klyagin <konst@konst.org.ua>
#
# $Id: motorsync,v 1.19 2004/07/08 14:39:39 konst Exp $
#

CROOT=":pserver:anonymous@cvs.thekonst.net:/home/konst/cvs/root"

PROG="motor"
MODULES="kktoolbox/kkstrtext kktoolbox/kksystr kktoolbox/kkconsui parser"
MAKEUPDATE=""
MONOLITE="1"

RETVAL=0
CVS="cvs -z9 -d $CROOT"

moduledir=""

checkutils() {
    for i in automake autoconf aclocal autoheader gettextize; do
	r=`which $i 2>&1`
	if test ! -f "$r"; then
	    echo "error: you must have $i installed to be able to use $0"
	    exit 1
	fi
    done

    vcvs=`cvs --version | grep System | gawk '{print $5}' | gawk -F . '{print $1 " " $2}'`
    if test "$vcvs" = "1 10"; then
	echo "CVS version 1.11 or later is needed in order to use $0"
	exit 1
    fi

    ver=1.4
    for i in automake aclocal; do
	r=`which $i-$ver 2>&1`
	eval $i=$i
	if test -f "$r"; then eval $i=$i-$ver; fi
    done

    ver=2.13
    for i in autoconf autoheader; do
	r=`which $i-$ver 2>&1`
	eval $i=$i
	if test -f "$r"; then eval $i=$i-$ver; fi
    done
}

preparedirs() {
    if test ! -d ${DEST}; then
	mkdir -p ${DEST};
    fi
}

getmoduledirname() {
    moduledir=`echo $1 | sed 's@^..*/\(..*\)$@\1@g'`
}

progsync() {
    preparedirs
    codir=$PROG
    dir=$prefix

    for module in $PROG $MODULES
    do
	if test $module != $PROG; then
	    getmoduledirname $module
	    dir=$DEST/$moduledir
	    codir="orig"
	fi

	mkdir -p $dir

	if test -d $dir; then
	    cd $dir

	    if test $1 = "checkout"; then
		$CVS co -d $codir $module
	    else
		cd $codir
		$CVS update -C -P -d
	    fi

	    RETVAL=$?
	    [ $RETVAL != 0 ] && return
	fi
    done

    find $DEST -name ".#*" -exec rm -f {} \;
}

makelinks() {
    echo -n "Creating symbolic links for sources of libraries.. "

    for module in $MODULES
    do
	getmoduledirname $module
	dir=$DEST/$moduledir/orig

	if test -d $dir; then
	    cd $dir

	    for fn in `find $dir -name "*.h" -o -name "*.cc" -o -name "*.c" -o -name "*.cpp" -o -name "*.C" -o -name "Makefile.am" -o -name "*.in"`
	    do
		srcfname=`echo $fn | sed 's@^..*/\(orig/..*\)$@\1@'`
		destdir=`dirname $fn | sed 's@/orig@@'`
		updirs=`echo $srcfname | sed 's/ /_/g;s/\// /g' | wc -w`
		updirs=`expr $updirs - 2`
		i=0

		while test $i -lt $updirs; do
		    srcfname="../"$srcfname
		    i=`expr $i + 1`
		done

		if test ! -d $destdir; then
		    mkdir -p $destdir
		fi

		if test ! -f $destdir/`basename $srcfname`; then
		    ln -sf $srcfname $destdir/
		fi
	    done
	fi
    done

    echo "ok"
}

updatemakepaths() {
    if test ! -z "$MAKEUPDATE"; then
	for fn in `find $DEST -name "Makefile.am"`
	do
	    sed $MAKEUPDATE $fn >.makefile.am
	    mv .makefile.am $fn
	done
    fi

    for m in $MODULES
    do
	getmoduledirname $m
	for fn in `find $DEST -name "configure.in"`
	do
	    smask="s/${moduledir}-[[:digit:].-][[:digit:].-]*/${moduledir}/g"

	    sed $smask $fn >.configure.in
	    mv .configure.in $fn
	done
    done

    MSUBDIRS=`cat $DEST/Makefile.am | egrep "^SUBDIRS" | sed 's/SUBDIRS[ =][ =]*//g'`
    
    for m in $MODULES
    do
	getmoduledirname $m
	onlist=`echo $MSUBDIRS | grep $moduledir`
	if test -z "$onlist"; then
	    MSUBDIRS="$moduledir $MSUBDIRS"
	fi
    done

    echo "SUBDIRS = $MSUBDIRS" >.makefile.am
    egrep -v "^SUBDIRS" $DEST/Makefile.am >>.makefile.am
    mv .makefile.am $DEST/Makefile.am
}

runautomake() {
    if test "$MONOLITE" != "0"
    then
	traverse="${DEST}/configure.in"
    else
	traverse=`find $DEST -name "configure.in" -print`
    fi

    for i in $traverse
    do
	cd `dirname $i`

	$aclocal
	headneeded=`grep AM_CONFIG_HEADER configure.in`
	if test ! -z "$headneeded"; then $autoheader; fi
	$autoconf
	$automake -a -c
    done

    cd $DEST
    if test ! -f intl/Makefile.in; then
	p="--no-changelog"
	while true; do
	    gettextize -f --intl $p
	    if test ! -z "$p"; then p=""; else break; fi
	done

	if test -f po/Makevars.template -a ! -f po/Makevars; then
	    mv po/Makevars.template po/Makevars
	fi

	if test -d m4; then
	    sed 's/^\s*SUBDIRS[         =]*m4[  =]*\(.*\)$/SUBDIRS = \1/g' <Makefile.am >11
	    grep -v "ACLOCAL_AMFLAGS = -I m4" 11 >Makefile.am
	    rm -rf m4 11
	    sed 's@intl/Makefile@@;s@po/Makefile.in@@;s@m4/Makefile @@' <configure.in >11
	    mv 11 configure.in
	fi

	aclocal
    fi
}

usage() {
    echo "
This is a script which can checkout and update $PROG from an
anonymous CVS repository.

script usage:
    $0 {update|checkout} <pathname>
"
}

finishmsg() {
    echo "
CVS operations finished sucessfully.

To build the updated stuff go to the ${DEST} directory
and issue the following commands:

./configure
make
make install
"
}

if test $# -lt 2; then
    usage
else
    checkutils

    if test ! -d $2; then
	echo "the location you specified does not exist: $2"
	exit
    else
	cd $2
	prefix=`pwd`
	DEST=${prefix}/$PROG
    fi

    if test $1 = "checkout" -o $1 = "update"; then
	progsync $1
    else
	usage
	exit
    fi

    if test $RETVAL != 0; then
	echo "$0 aborted, exit code = $RETVAL"
    else
	updatemakepaths
	makelinks
	runautomake
	finishmsg
    fi
fi

exit $RETVAL