##!/bin/bash --debug
#!/bin/bash

#FUNCTIONS.
################################################################

####
####
# For testing purposes.
####
####

function BUGPAUSE 
{
echo " "
echo "-----------------------------------------------------------"
echo "			  MANUAL BUG CHECK!"
echo "      Is the program doing what you expect?  Please "
echo "   review preceeding output for correctness.  Thank you."
echo "-----------------------------------------------------------"
echo " "
ask "Continue? [Y/n]"
if [ $? -ne 0 ]; then 
	{
	exit 100
	}
fi
}





####
####
# Error Handler.
####
####


function ERROR 
{
clear
echo "----------------"
echo "| ABEND: Code $1 |"
echo "-------------------------------------------------------------------------"
echo " Bummer!  An error occurred!"
echo " Don't you just hate it when..."
echo "${2}?"
echo "=========================="
echo " Maybe this will help...."
echo "=========================="
SYNTAX
ask "Would you like to exit at this point? [y/N]"
if [ $? -eq 0 ]; then 
	exit $1
fi
}



####
####
# Displays syntax, usage information, other comments.
####
####


function SYNTAX
{
echo " "
echo "-------------------------------------------------------------------------"
echo "This installer needs to be run from /root/bin/."
echo ""
echo "NOTE:"
echo "There is a part of this program for Debian and Debian-like distros "
echo "and another for those using RPM-based distributions.  Please use ONLY"
echo "the approrpiate code."
echo " "
echo "Much of the code is hard-wired to expect the source files to be in"
echo "/root/bin/ since this is likely to be inaccessible to Joe User, and"
echo "therefore relatively inviolate.  This is a safety feature, since many"
echo "of the utilities and programs that make up the KludgeKollection can be"
echo "potentially lethal."
echo "-------------------------------------------------------------------------"
}


####
####
# APT_GETTER
# Checks to see if the package is already installed.  If they are not, 
# APT_GETTER calls APT_INSTALLER to install the requested package.
####
####
function APT_GETTER

{

clear
if ! [ -z /etc/debian_version ]; then
#VALIDATE APT SOURCES LIST
	{	
	ask "Shall I validate your apt sources list first? [Y/n]"
	if [ $? -eq 0 ]; then
		{
		echo "Validating /etc/apt/sources.list."
		apt-get update
		}
	fi
	clear
# MAKE SURE THAT debian_package_list IS IN THE CURRENT DIRECTORY.
	if  ! [ -f ./debian_package_list ]; then 
		ERROR 4 "debian_package_list is not in the current directory"
	fi
#	for PACKAGE in `cat ./debian_package_list | cut -d/ -f1`; do
# FOR EACH PACKAGE IN debian_package_list DO THIS PROCESS.
	for PACKAGE in `cat ./debian_package_list`; do
		{
		PACK=`echo $PACKAGE | cut -d/ -f1`
		dpkg -L  $PACK > nul
		if [ $? -eq 0 ]; then
			{
			echo "Package $PACKAGE is already installed."
			}
		else
			{
			echo "Preparing to install package $PACKAGE"
			ask "Would you like to install $PACKAGE? [Y/n]"
			if [ $? -eq 0 ]; then
				{
				apt-get install $PACKAGE
				if [ -$? -ne 0 ]; then
					{
					ERROR $? "packages like $PACKAGE fail to install"
					}
				else
					{
					echo "Skipped package $PACKAGE."
					}
				fi
				}
			fi
			}
		fi
		}
	done
	}
fi
}


####
####
# LOCAL_RPM uses INSTALL_PACKAGE to install some locally provided RPMS for
# those who wish to use them (and are using RPM-based distros.)
####
####

function LOCAL_RPM
{
echo "We will now install some packages from local storage."
if ! [ -f ./rpm_package_list ]; then
	ERROR 5 "The rpm_package_list file is not in the current directory"
fi
for i in `cat rpm_package_list`; do
	{
	clear
	echo "Would you like to install the following package?"
	ask "$i [Y/n]"
	if [ $? -eq 0 ]; then
		{
		rpm -ivh $i
		}
	else
		echo "Package $i was skipped."
	fi
	}
done
}





####
####
# VERSION just gives the version number.  D'oh!
####
####
function VERSION
{
echo "  KludgeKollection Installer/Patcher, Version 10302k3-a"
}

####
####
#
# KLUDGEINSTALL--Installs the KludgeKollection Scripts.
#
####
####

function KLUDGEINSTALL ()
{
echo "Doing main install of the KludgeKollection."
for i in `cat /root/bin/kludgelist`; do
	{
	echo "Installing $i in /usr/bin..."
	chmod 755 $i
	scp $i /usr/bin
	}
done
echo "==========================================================="
echo "Installing patched MOSRUN scripts...."
echo "==========================================================="
echo "New versions of openMosix user utility kits expect to "
echo "find mosrun (and mosctl) in /bin, rather than /usr/bin."
echo "However, the tools provided in the kits do not always"
echo "reflect this change, and erroniously look for "
echo "/usr/bin/mosrun and /usr/bin/mosctl."
echo " "
echo "The KludgeKollection provides a replacement set of scripts,"
echo "which have been modified to correctly locate the required "
echo "programs in /bin."
echo " "
echo "In addition, a replacement runon is (somewhat pointlessly)"
echo "provided for your convenience."
echo "============================================================"
ask "Do you want to replace the existing copies of these utilities?" n
if [ $? -eq 0 ]; then
	{
	for i in cpujob iojob runon nomig runhome nodecay slowdecay fastdecay; do
		{
		echo "Installing replacement $i..."
		cp /root/bin/$i /usr/bin
		cp /root/bin/$i /bin
		}
	done
	}
else
	{
	for i in cpujob iojob runon nomig runhome nodecay slowdecay fastdecay; do
		rm /usr/bin/$i
	done
	echo "No replacements were made.  The original versions remain in /bin."
	}
fi
}




########################## End Functions ######################






###############################################################
########################## MAIN ###############################
###############################################################


echo "========================================================"
VERSION
echo "  KLUDGEKOLLECTION openMosix Utilities Installer Script "
echo "  For RedHat 7.x +, Mandrake 9.1, and ClusterKNOPPIX 3.3"
echo "  September 24, 2003 release.  Should also work with    "
echo "  standard Debian installs (though I've not yet tried it)"
echo "======================================================="

if ! [ -d /root/bin ]; then
	mkdir -p /root/bin/
fi
if [ ! -z $1 ]; then
	{
	VERSION
	exit 0
	}
fi
for i in newscript newscript_template; do
	echo "Locking down $i...."
	chmod 555 /usr/bin/$i
done
echo "Locking down the SNAPBACK Backup utility."
chmod 744 /usr/bin/snapback
chmod 644 /usr/bin/backup_exclude
chmod 644 /usr/bin/snapback_hostkey

	

# BASIC UTILITIES--the core KludgeKollection.

KLUDGEINSTALL

ln -s /usr/bin/vncviewer /usr/bin/vnc

echo " "
echo "Installing some Samba stuff"
scp /root/bin/smbadduser /usr/bin/smbadduser

echo " "
echo "Installing setistart.sh"
scp /root/bin/setistart.sh /usr/bin/setistart

echo "Configuring SSSH (from Linux Server Hacks (Rob Flickenger/O'Reilly))"
ask "Is /usr/bin/do_ssh_hosts updated to reflect the hosts on *YOUR* network?"
if [ $? -eq 0 ]; then
	for i in `cat do_ssh_hosts`; do 
		ln -s /usr/bin/sssh /usr/bin/$i
		if [ $? -ne 0 ]; then
			ERROR 102 "we fail to create a symlink for $i"
		else
			echo "$i link created."
		fi
	done
else
	echo "Edit do_ssh_hosts to list the hosts on your network"
	echo "Then, execute a command similar to the following"
	echo 'for i in `cat do_ssh_hosts`; do ln -s /usr/bin/sssh /usr/bin/$i; done'
fi	



# KERNEL SOURCE PACKAGE
echo "============================================================="
echo "Shall we install the openMosix kernel sources"
echo "so you can roll your own kernel?"
echo "NOTE: The Kernel source is quite large, so it is not included "
echo "with the KludgeKollection or the KludgeKlump tarball."
echo "You should download the current version from "
echo "Wim Vandermissen's site, www.bofh.be/clusterknoppix. and "
echo "place it in /root/bin along with this install program."
echo "You will then need to edit the following dpkg command to "
echo "reflect the proper filename."
echo " "
ask "--->Is the Kernel source file locally placed and ready to install?"
if [ $? -ne 0 ]; then
	echo "Aborting Kernel Source install at your request."
else
	dpkg -i kernel-source-2.4.22-openmosix-1_10.00.Custom_all.deb
	echo " "
	echo "Remember:  These 'install' a .tar.bz2 file in /usr/src."
	echo "We recommend moving this tar-ball to your home directory and"
	echo "unpacking/decompressing it there, and then doing all your "
	echo "kernel voodoo there, rather than in /usr/src, where there are"
	echo "'usually incomplete' header libraries that might result in the"
	echo "compilation of a corrupt kernel."
fi



# USER PACKAGES for DEBIAN or RPM
ask "Is this a DEBIAN-based distro?"
if [ $? -eq 0 ]; then
	{
	echo "Running package installations for DEBIAN."
	APT_GETTER
	}
else
	{
	ask "Is this an RPM-based distro such as RedHat, SuSE or Mandrake?"
	if [ $? -eq 0 ]; then
		{
		echo "Running package installations for RPM-based distros."
		LOCAL_RPM
		}
	else
		{
		echo "Sorry.  This installer doesn't support Windows!"
		echo "Just kidding.  Didn't mean to insult you, buddy."
		echo "Seriously, though, this installer only works with"
		echo "DEBIAN-based distros and RPM-based distros."
		echo " "
		echo "So no packages were installed."
		}
	fi
	}
fi






#PATCHING/FIXING (Mostly for hd-install of ClusterKNOPPIX and Debian.)
echo "--------------------------------"
echo "Removing some spurious symlinks."
echo "--------------------------------"

rm /usr/share/man/man1/ctags1.gz
rm /usr/share/man/man1/emacs.1.gz
rm /usr/share/man/man1/etags.1.gz


echo "------------------------------------------------"
echo " Adding /mfs directory so we can use oMFS/DFSA."
echo "------------------------------------------------"


if ! [ -d /mnt/o/mfs ]; then
	mkdir -p /mnt/o/mfs
	if [ $? -eq 0 ]; then
		ln -s /mnt/o/mfs /mfs
		echo 'Made /mfs directory for oMFS/DFSA.'
		echo 'Also made /mfs symlink for /mnt/o/mfs so it appears that'
	else
		ERROR 103 "when we can't make /mnt/o/mfs"
	fi
else
	echo '/mfs directory exists already.'
fi
cat /etc/fstab >hosts.unties



clear
echo " "
echo "============================================================"
echo "Installing slightly patched openmosix script in /etc/init.d."
echo "============================================================"
echo "The stock version of /etc/init.d/openmosix does _NOT_ check "
echo "for root privileges before attempting to start.  Indeed, it "
echo "will appear to run correctly when run by someone other than "
echo "root, but, in actuality, openMosix does NOT get started.  "
echo "Obviously, this can lead to problems, so I've added a small "
echo "patch to the stock script (as supplied with ClusterKNOPPIX "
echo "version 3.3, Sept 24, 2003 release), and presumably as "
echo "supplied generally with the current version of openMosix."
echo "The patch is a simple test that uses the \"id\" command to "
echo "check that the user running /etc/init.d/openmosix is really"
echo "root.  If the user is NOT, openMosix will abort with an"
echo "appropriate error message.  Otherwise, it starts normally."
echo " "
ask "Would you like to install this patched version of openMosix?"
if [ $? -eq 0 ]; then 
	{
	scp /root/bin/openmosix /etc/init.d/openmosix
	echo  "Patched version of openmosix script has been installed."
	}
else
	{
	echo "Installation aborted at your request."
	}
fi


echo "============================="
echo "END KludgeKollection Install."
echo "============================="