#!/bin/csh -f
# Copyright(c)'1994-2011 by The Givaro group
# This file is part of Givaro.
# Givaro is governed by the CeCILL-B license under French law
# and abiding by the rules of distribution of free software.
# see the COPYRIGHT file for more details.


set conf = configure.ac
set mak  = src/Makefile.am
set ver  = src/kernel/system/givconfig.h
set mkf  = Makefile.am

#verbatim second argument of AC_INIT
set verb = `grep ^AC_INIT $conf | cut -d',' -f2`
#removes spaces and brackets
set vern = `echo "$verb" | sed 's/ //g;s/\[//;s/\]//'`

echo "Current version is $vern."

###################################
## INCREMENT THE LIBRARY VERSION ##
###################################

echo -n "Increment library version ? (y/n)"
set answ = $<
if ("$answ" == "y") then
	#gets the line
	set line = `grep -n  ^AC_INIT $conf  | cut -d':' -f1`
	#a version number is macro.minor.micro
    set macro = `echo "$vern" | cut -d'.' -f1`
    set minor = `echo "$vern" | cut -d'.' -f2`
	set micro = `echo "$vern" | cut -d'.' -f3`
    #make temp files for sed
	set tmpfile = `mktemp`
	set sedfile = `mktemp`
    #increment the revision numbers.
	set pmicro = `echo $micro`
    @ pmicro ++
	set pminor = `echo $minor`
    @ pminor ++
	set pmacro = `echo $macro`
    @ pmacro ++
    # talk to the user. This choice is very important here
	echo "Increment micro revision number ($vern -> $macro.$minor.$pmicro) ? press '0' "
	echo "Increment minor revision number ($vern -> $macro.$pminor.0) ? press '1' "
	echo -n "Increment macro revision number ($vern -> $pmacro.0.0) ? press '2' "
	set increm = $<
	switch ($increm)
		case 0:
			set newv = "[$macro.$minor.$pmicro]"
			breaksw
		case 1:
			set newv = "[$macro.$pminor.0]"
			breaksw
		case 2:
			set newv = "[$pmacro.0.0]"
			breaksw
		default:
			set newv = "$verb"
			echo "'$increm' was read. Not incrementing anything."
			breaksw
	endsw
	# replacing [ ] and . with escaped version for sed would understand them as 'operators'.
	# This line is important when the used left spaces or removed [].
	echo "$line s/$verb/$newv/" | sed 's/\./\\\./g;s/\[/\\\[/g;s/\]/\\\]/g' > $sedfile
	sed -f $sedfile $conf > $tmpfile
	# clean up
	\rm -f $sedfile
	# diff for changes
	diff -u0 $conf $tmpfile
	# if something was changed, confirm incrementation :
	# if not confirm, we restore and abort.
    if ("$newv" != "$verb") then
		echo -n "Confirmation of incrementation ? (yes/no)"
		set answ = $<
		set backupconf = $conf.back$$
		if ("$answ" == "yes") then
            \cp -p $conf $backupconf
            echo "Back-up of $conf made in $backupconf. Now overwriting $conf."
			\mv -f $tmpfile $conf
		else
			echo "'$answ' was read. Not incrementing anything."
			\rm -f $tmpfile
			exit 0
		endif

		#####################################
		## INCREMENT THE GIVCONFIG VERSION ##
		#####################################

		echo -n "Incrementing givconfig revision accordingly."
        set backupver = $ver.back$$
		set tmpfile = `mktemp`
		set sedfile = `mktemp`
		switch ($increm)
			case 0:
				echo "s/GIVARO_REVISION_VERSION.*/GIVARO_REVISION_VERSION $pmicro/" > $sedfile
                set decimalversion = `expr \( $macro \* 100 + $minor \) \* 100 + $pmicro`
				breaksw
			case 1:
				echo "s/GIVARO_MINOR_VERSION.*/GIVARO_MINOR_VERSION    $pminor/"    > $sedfile
				echo "s/GIVARO_REVISION_VERSION.*/GIVARO_REVISION_VERSION 0/"      >> $sedfile
                set decimalversion = `expr \( $macro \* 100 + $pminor \) \* 100`
				breaksw
			case 2:
				echo "s/GIVARO_MAJOR_VERSION.*/GIVARO_MAJOR_VERSION    $pmacro/"    > $sedfile
				echo "s/GIVARO_REVISION_VERSION.*/GIVARO_REVISION_VERSION 0/"      >> $sedfile
				echo "s/GIVARO_MINOR_VERSION.*/GIVARO_MINOR_VERSION    0/"         >> $sedfile
                set decimalversion = `expr $pmacro \* 10000`
				breaksw
			default:
				echo "Something abnormal happened"
				exit 1
				breaksw
		endsw
		echo "s/GIVARO_VERSION.*/GIVARO_VERSION          $decimalversion/" >> $sedfile
		sed -f $sedfile $ver > $tmpfile
		\rm -f $sedfile
		diff -u0 $ver $tmpfile
		echo -n "Confirmation of incrementation ? (yes/no) "
		set answ = $<
		if ("$answ" == "yes") then
            \cp -p $ver $backupver
			\mv -f $tmpfile $ver
		else
			echo "'$answ' was read. Not incrementing anything."
			echo " your old $conf is restored..."
			\rm -f $tmpfile
			\mv -f $backupconf $conf
			exit 0
		endif

		#####################################
		## INCREMENT THE MAKEFILE VERSION ##
		#####################################

		echo "Incrementing Makefile.am version."
		set tmpfile = `mktemp` #tempfile
		set sedfile = `mktemp` #tempfile
		switch ($increm)
			case 0:
				echo -n "s/VERSION.*/VERSION=$macro.$minor.$pmicro/"  >> $sedfile
				breaksw
			case 1:
				echo "s/VERSION.*/VERSION=$macro.$pminor.0/"  > $sedfile
				breaksw
			case 2:
				echo "s/VERSION.*/VERSION=$pmacro.0.0/"  > $sedfile
				breaksw
			default:
				echo "Something abnormal happened"
				exit 1
				breaksw
		endsw
		sed -f $sedfile $mkf > $tmpfile
		\rm -f $sedfile
		diff -u0 $mkf $tmpfile
		echo -n "Confirmation of incrementation ? (yes/no) "
		set backupmkf = $mkf.back$$
		set answ = $<
		if ("$answ" == "yes") then
			\cp -p $mkf $backupmkf
			\mv -f $tmpfile $mkf
		else
			echo "'$answ' read. Not incrementing anything."
			echo " your old $conf and $ver are restored..."
			\rm -f $tmpfile
			\mv -f $backupconf $conf
			\mv -f $backupver $ver
			exit 0
		endif


		##################################
		## INCREMENT THE SONAME VERSION ##
		##################################

		echo "Incrementing soname version now."
        set backupmake = $mak.back$$
		set infostring = `grep "libgivaro_la_LDFLAGS.*version-info" $mak | awk  '{print $NF}'`
		set cur = `echo $infostring | cut -d':' -f1`
		set rev = `echo $infostring | cut -d':' -f2`
		set age = `echo $infostring | cut -d':' -f3`
		set pcur = `echo $cur`
        @ pcur ++
		set prev = `echo $rev`
        @ prev ++
		set page = `echo $age`
        @ page ++
		set tmpfile = `mktemp`
		set sedfile = `mktemp`
		switch ($increm)
			case 0:
				echo "s/${infostring}/${cur}:${prev}:${age}/" > $sedfile
				breaksw
			case 1:
				echo "s/${infostring}/${pcur}:0:${page}/"     > $sedfile
				breaksw
			case 2:
				echo "s/${infostring}/${pcur}:0:0/"           > $sedfile
				breaksw
			default:
				echo "Something enourmously abnormal happened"
				exit 1
				breaksw
		endsw
		sed -f $sedfile $mak > $tmpfile
		\rm -f $sedfile
		diff -u0 $mak $tmpfile
		echo -n "Confirmation of incrementation ? (yes/no) "
		set answ = $<
		if ("$answ" == "yes") then
            \cp -p $mak $backupmake
			\mv -f $tmpfile $mak
             echo -n "Removing back-up for $conf, $mkf, $mak and $ver ? (y/n)"
             set remo = $<
             if ("$remo" == "y") then
					 \rm -f $backupconf
					 \rm -f $backupver
					 \rm -f $backupmake
					 \rm -f $backupmkf
             else
				 echo "You can find them in $backupconf, $backupmkf, $backupver and $backupmake."
			 endif
		else
			echo "'$answ' was read. Not incrementing anything."
			echo " your old $conf and $ver are restored..."
			\rm -f $tmpfile
			\mv -f $backupconf $conf
			\mv -f $backupver  $ver
			\mv -f $backupmkf  $mkf
			exit 0
		endif

	endif
else
	echo "'$answ' was read. Not incrementing anything."
	exit 0
endif

exit 0

# how to unset set variables ?