# This file is part of the src2pkg program:
# Copyright 2005-2008 Gilbert Ashley <amigo@ibilio.org>
# src2pkg is released under the GNU General Public License Version 2

# This method installs all files into a 'false root' directory, the PKG_DIR.
# This usually works when using DESTDIR is not supported by the Makefiles and
# is less intrusive than installing to the real root directory, backing up 
# overwritten files and then restoring them

install_to_jail_root() {
echo $BLUE"Installing in jail root - "$NORMAL"Using: '$INSTALL_COMMAND $INSTALL_RULE'"$NORMAL
if [ $PKG_DIR != "" ] ; then
	! [ $INSTALLSENTRY_ROOT_DIR ] && INSTALLSENTRY_ROOT_DIR=${PKG_DIR}
fi
export INSTALLSENTRY_ROOT_DIR

# The libsentry variable is INSTW_ROOTPATH
# We give it a second name  since INSTW_ROOTPATH gets unset

# This is supposed to have been done already
mkdir -p $INSTALLSENTRY_ROOT_DIR

# make sure all these are unset
unset INSTW_ROOTPATH
unset INSTW_TRANSL
unset INSTW_BACKUP
unset INSTW_LOGFILE
unset INSTW_DBGFILE
unset INSTW_DBGLVL
unset INSTW_EXCLUDE

# This method installs the files in PKG_DIR/TRANSL
INSTW_ROOTPATH="${INSTALLSENTRY_ROOT_DIR}"
export INSTW_ROOTPATH

if [ $DEBUG_FILELISTS ] ; then
	INSTW_LOGFILE="${CWD}/FILELIST.tmp"
	INSTW_DBGFILE="${CWD}/libsentry.debug"
	INSTW_DBGLVL=2
	if cat /dev/null >"${INSTW_LOGFILE}" ; then
		true
	else
		echo $RED"FAILED! - "$NORMAL "Unable to prepare $INSTW_LOGFILE"
		exit 1
	fi
	if cat /dev/null >"${INSTW_DBGFILE}" ; then
		true
	else
		echo $RED"FAILED! - "$NORMAL "Unable to prepare $INSTW_DBGFILE"
		exit 1
	fi
fi

export INSTW_LOGFILE
export INSTW_DBGFILE
export INSTW_DBGLVL

# turn the backup feature off
INSTW_BACKUP=0
export INSTW_BACKUP
# turn the translation fetaure on
INSTW_TRANSL=1
export INSTW_TRANSL

# this doesn't seem to work any other way
INSTW_EXCLUDE="/dev,/proc,/tmp,/var/tmp,${INSTW_EXCLUDE}"
OIFS="$IFS"
IFS=','
INSTW_EXCLUDE=$(for name in $INSTW_EXCLUDE; do
	echo $name
	done | sort -u |
	while read elem; do
		echo -n "$elem,"
	done)
export INSTW_EXCLUDE
IFS="$OIFS"
	
# 
LD_PRELOAD="/usr/libexec/src2pkg/lib/libsentry.so"
export LD_PRELOAD
	
trap trap_int 2
( cd $OBJ_DIR;
if [[ $QUIET = "YES" ]] ; then
	$INSTALL_COMMAND $INSTALL_RULE &> /dev/null
else
	$INSTALL_COMMAND $INSTALL_RULE
fi
)

RETVAL=$?

if [ $RETVAL -eq 0 -o $RETVAL -gt 1 ] ; then
	
	unset INSTW_ROOTPATH
	unset LD_PRELOAD
	
	# libsentry tracks the writing of its' own logfile so a 'shadow' directory of
	# the current working directory gets created which must be removed
	# *Carefully* remove the shadow CWD from the INSTALLSENTRY_ROOT_DIR
	# strip off the leading '/'
	SHADOW_CWD=${CWD:1}
	# strip off the trainling subdirs to get the main base dir name
	SHADOW_CWD_BASE=${SHADOW_CWD%%/*}
	# cd into the BACKUP and then rm -rf
	( cd $INSTALLSENTRY_ROOT_DIR/TRANSL && rm -rf $SHADOW_CWD_BASE )
	# also remove the META directory
	( cd $INSTALLSENTRY_ROOT_DIR && rm -rf META )
	
	if [[ $(find ${INSTALLSENTRY_ROOT_DIR}/TRANSL -type f) != "" ]] ; then
		if [ $DEBUG ] && [ $RETVAL -gt 1 ] ; then
			echo $CYAN"NOTICE - "$NORMAL"Possible error($RETVAL) running '$INSTALL_LINE'"
			echo "         This may be a false error since some files have been installed."
			echo "         But you should check the package content just to be sure."
		fi
		# echo "Must have been a false error as files were found."
		# now move the installed content into the main PKG_DIR
		( cd ${INSTALLSENTRY_ROOT_DIR}/TRANSL && mv ./* $PKG_DIR/ )
		# then remove the TRANSL directory
		( cd ${INSTALLSENTRY_ROOT_DIR} && rm -rf TRANSL )
	
		echo $BLUE"Safe installation - "$GREEN"Successful!"$NORMAL
		echo $BLUE"Processing package content:"$NORMAL
	else
		echo $RED"FATAL! "$NORMAL"Running '$INSTALL_LINE' has failed with error: $? "
		echo "Try using INSTALL_LINE 'make -i install'  "$RED"Exiting..."$NORMAL
		FAILED="make_install"
	fi
else
	
	# make install itself returned a possible  error
	# try to do a generic installation
	unset INSTW_ROOTPATH
	unset LD_PRELOAD
	
	# libsentry tracks the writing of its' own logfile so a 'shadow' directory of
	# the current working directory gets created which must be removed
	# *Carefully* remove the shadow CWD from the INSTALLSENTRY_ROOT_DIR
	SHADOW_CWD=${CWD:1}
	SHADOW_CWD_BASE=${SHADOW_CWD%%/*}
	( cd $INSTALLSENTRY_ROOT_DIR/TRANSL && rm -rf $SHADOW_CWD_BASE )
	# also remove the META directory
	( cd $INSTALLSENTRY_ROOT_DIR && rm -rf META )
	
	
	if [[ $(find ${INSTALLSENTRY_ROOT_DIR}/TRANSL -type f) != "" ]] ; then
		echo $CYAN"Notice - "$NORMAL"Possible error running '$INSTALL_LINE'"
		echo "         This is probably a false error since files have been installed."
		echo "         But you should check the package content just to be sure."
		# echo "Must have been a false error as files were found."
		( cd ${INSTALLSENTRY_ROOT_DIR}/TRANSL && mv ./* .. )
		( cd ${INSTALLSENTRY_ROOT_DIR} && rm -rf TRANSL )
	elif [[ -x $OBJ_DIR/$NAME ]] || [[ -x $OBJ_DIR/$ORIG_NAME ]]; then
		echo $CYAN"Notice - "$NORMAL"Running '$INSTALL_LINE' has failed."
		echo "But, there seems to be a matching executable in the SRC_DIR."
		echo $BLUE"Doing generic install - "$NORMAL
		mkdir -p $PKG_DIR/$PRE_FIX/bin
		[[ -x $OBJ_DIR/$NAME ]] && cp -a $OBJ_DIR/$NAME $PKG_DIR/$PRE_FIX/bin
		[[ -x $OBJ_DIR/$ORIG_NAME ]] && cp -a $OBJ_DIR/$ORIG_NAME $PKG_DIR/$PRE_FIX/bin
		if [[ -e $OBJ_DIR/$NAME.1 ]] || [[ -e $OBJ_DIR/$NAME.man ]] ; then
			echo $BLUE"Found man-page - "$NORMAL"Copying into PKG_DIR"
			mkdir -p $PKG_DIR/usr/man/man1
			[[ -e $OBJ_DIR/$NAME.1 ]] && cp -a $OBJ_DIR/$NAME.1 $PKG_DIR/usr/man/man1/$NAME.1
			[[ -e $OBJ_DIR/$NAME.man ]] && cp -a $OBJ_DIR/$NAME.man $PKG_DIR/usr/man/man1/$NAME.1
		fi
	else
		echo $RED"FATAL! "$NORMAL"Running '$INSTALL_LINE' has failed with error: $? "
		echo "Try using INSTALL_LINE 'make -i install'  "$RED"Exiting..."$NORMAL
		FAILED="make_install"
	fi
fi
}