#!/bin/sh 
# BuildSBO script v0.2 2007-07-02
# by Chess Griffin {chess at chessgriffin dot com}
#
# This script is intended to be used with the Slackbuilds.org
# repository of Slackware build scripts.  The script can rsync with a
# Slackbuilds.org repository and also build one or more packages
# from the mirrored slackbuilds.  The build process includes downloading
# the source code, checking the MD5SUM, and then running the appropriate
# slackbuild script.  Since this script calls the slackbuild process, 
# this script needs to be run as root. 
#
# Example 1:  ./buildsbo -l /home/user/sbo -r
#
# This will rsync with Slackbuilds.org into the local mirror directory
# of /home/user/sbo and then exit.  The -l is optional as you can set
# the local mirror directory in the "Configurable Options" section
# below.
# 
# Example 2:  ./buildsbo foo foo2
#
# This will fetch and build foo and foo2 in that order from your local
# Slackbuilds.org repository.
# 
# Changelog:
# v0.1	2007-06-22	Initial release
# v0.2	2007-07-02	Updated for Slackware 12; can now use with 
#			different versions of Slackbuilds.org repos;
#			added ability to create the local mirror dir;
#			added ability to build more than 1 package
#			at a time.


# Start Configurable Options
#
# This is the location of your local Slackbuilds.org mirror.
# This can be overridden with the -l option
LOCALMIRROR=/home/sbo/

# This is the version of Slackware Slackbuilds.org scripts
# you wish to use.  A command line option to change Slackware version
# will probably be in an updated version of this script.
SLACKRELEASE=12.0
# 
# End Configurable Options - No changes should be necessary below.


# BuildSBO version number
VER=0.2

# Usage
while getopts ":hl:r" OPT
do
  case $OPT in
    h ) echo "BuildSBO v$VER by Chess Griffin"
	echo "Usage: $0 [OPTIONS] <packagename(s)>"
	echo "Options are:"
	echo "  -h		Display this help message."
	echo "  -l localdir	Location of local Slackbuilds.org mirror."
	echo "  		This is currently set to"
	echo "  		$LOCALMIRROR."
	echo "  -r		Rsync the Slackbuilds.org respository with"
	echo "  		the local mirror and then quit."
	exit
	;;
    l ) LOCALMIRROR=${OPTARG}
	;;
    r ) RSY=1
	;;
    * )	echo "No options given.  Run '$0 -h' for help.  Exiting."
	exit
        ;;
  esac
done

# End of option parsing.
shift $(($OPTIND - 1))

# Check to make sure $LOCALMIRROR exists and if not, offer to make it 
if [ ! -e "$LOCALMIRROR" ];
	then echo "The local mirror directory at $LOCALMIRROR does not
exist.  Do you want to create it?  [y/N]"
	read -s -n 1 ANSWER
	if [ "$ANSWER" == "y" ] || [ "$ANSWER" == "Y" ]; then
		mkdir -p $LOCALMIRROR
		echo "$LOCALMIRROR created.  Exiting."
	elif [ "$ANSWER" == "n" ] || [ "$ANSWER" == "N" ]; then
		echo "$LOCALMIRROR not created.  Exiting."
		exit
	else exit
	fi
fi

CWD=$PWD
cd $LOCALMIRROR

# Do rsync of Slackbuilds.org into $LOCALMIRROR if -r is used, and then exit
if [ -n "$RSY" ];
	then echo "Rsyncing with Slackbuilds.org repository into $LOCALMIRROR."
	/usr/bin/rsync -avz slackbuilds.org::slackbuilds/$SLACKRELEASE/ $LOCALMIRROR/$SLACKRELEASE/
	echo "Done."
	exit
fi

# Start a loop for each package name
for PKGSTEP in $*; do
# Additional variables for this section
PKG=$PKGSTEP
PKGPATH=`find -name $PKG`  
PKGNAME=`echo $PKG | sed 's/.*\///'`
DNLD=`grep DOWNLOAD $PKGPATH/$PKG.info | sed -e s/DOWNLOAD=//`
SRCNAME=`echo $DNLD | sed 's/.*\///'`
MD5=`grep MD5SUM $PKGPATH/$PKG.info | sed -e s/MD5SUM=//`
# Search for package name and exit if not found
if [ ! `find -name "$PKG"` ];
	then echo "Slackbuild script for $PKG not found.  Exiting."
	exit
fi
# Start fetching and building
echo "Building $PKG"
cd $PKGPATH
if [ ! -e "$SRCNAME" ]; 
	then echo "Downloading source code for "$SRCNAME"..."
	wget $DNLD || exit 1
fi
echo "Checking MD5SUM for "$SRCNAME"..."
MD5CHK=`md5sum $SRCNAME | sed -e 's/ .*$//'`
if [ "$MD5CHK" == $MD5 ]; 
	then echo "OK"
	else echo "MD5SUM check failed.  Exiting." exit
fi
echo "Building Slackware package for "$SRCNAME"..."
sh $PKG.SlackBuild
echo "Done building $PKG."
cd $LOCALMIRROR
done
# end of loop

cd $CWD
echo "All done."
exit