pacman/scripts/gensync

#!/bin/bash
# 
#   gensync
#  
#   Copyright (c) 2002-2003 by Judd Vinet <jvinet@zeroflux.org>
#  
#   This program is free software; you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation; either version 2 of the License, or
#   (at your option) any later version.
# 
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#  
#   You should have received a copy of the GNU General Public License
#   along with this program; if not, write to the Free Software
#   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 
#   USA.
#

myver='2.6'

usage() {
  echo "gensync $myver"
  echo "usage: $0 <root> <destfile>"
	echo
	echo "gensync will generate a sync database by reading all PKGBUILD files"
	echo "from <root>.  gensync builds the database in /tmp/.gensync and then"
	echo "compresses it to <destfile>."
	echo
	echo "note: The <destfile> name is important.  It must be of the form"
	echo "      {treename}.db.tar.gz where {treename} is the name of the custom"
	echo "      package repository you configured in /etc/pacman.conf.  The"
	echo "      generated database must reside in the same directory as your"
	echo "      custom packages (also configured in /etc/pacman.conf)"
	echo
	echo "example:  gensync /usr/abs/local /home/mypkgs/custom.db.tar.gz"
	echo
  echo
  exit 0
}

db_write_entry()
{
	unset pkgname pkgver pkgrel pkgdesc
	unset groups replaces provides depends conflicts
	source $1 || return 1
	cd /tmp/.gensync
	mkdir $pkgname-$pkgver-$pkgrel
	cd $pkgname-$pkgver-$pkgrel
	# desc
	: >desc
	echo "%NAME%" >>desc
	echo "$pkgname" >>desc
	echo "" >>desc
	echo "%VERSION%" >>desc
	echo "$pkgver-$pkgrel" >>desc
	echo "" >>desc
	echo "%DESC%" >>desc
	echo "$pkgdesc" >>desc
	echo "" >>desc
	if [ ${#groups[*]} -gt 0 ]; then
		echo "%GROUPS%" >>desc
		for it in "${groups[@]}"; do
			echo "$it" >>desc
		done
		echo "" >>desc
	fi
	if [ ${#replaces[*]} -gt 0 ]; then
		echo "%REPLACES%" >>desc
		for it in "${replaces[@]}"; do
			echo "$it" >>desc
		done
		echo "" >>desc
	fi
	# depends
	: >depends
	if [ ${#depends[*]} -gt 0 ]; then
		echo "%DEPENDS%" >>depends
		for it in "${depends[@]}"; do
		  echo "$it" >>depends
		done
		echo "" >>depends
	fi
	if [ ${#conflicts[*]} -gt 0 ]; then
		echo "%CONFLICTS%" >>depends
		for it in "${conflicts[@]}"; do
		  echo "$it" >>depends
		done
		echo "" >>depends
	fi
	if [ ${#provides[*]} -gt 0 ]; then
		echo "%PROVIDES%" >>depends
		for it in "${provides[@]}"; do
		  echo "$it" >>depends
		done
		echo "" >>depends
	fi
}

if [ $# -lt 2 ]; then
	usage
	exit 0
fi

if [ "$1" = "-h" -o "$1" = "--help" ]; then
	usage
	exit 0
fi

d=`dirname $1`
rootdir=`cd $d && pwd`
rootdir="$rootdir/`basename $1`"
d=`dirname $2`
destfile=`cd $d && pwd`
destfile="$destfile/`basename $2`"

rm -rf /tmp/.gensync || exit 1
mkdir -p /tmp/.gensync || exit 1

if [ ! -d $rootdir ]; then
	echo "gensync: invalid root dir: $rootdir" >&2
	rm -rf /tmp/.gensync
	exit 1
fi

echo "gensync: building database entries..." >&2
#for category in `find $rootdir/* -type d -maxdepth 0`; do
for file in `find $rootdir/* -name PKGBUILD`; do
	db_write_entry $file
	if [ $? -gt 0 ]; then
		echo "gensync: error writing entry for $file" >&2
		rm -rf /tmp/.gensync
		exit 1
	fi
done

echo "gensync: compressing to $destfile..." >&2
cd /tmp/.gensync
tar c * | gzip -9 >$destfile
if [ $? -gt 0 ]; then
	echo "gensync: error writing to $destfile" >&2
	rm -rf /tmp/.gensync
	exit 1
fi

rm -rf /tmp/.gensync

exit 0