pacman/scripts/gensync

#!/bin/bash
# 
#   gensync
#  
#   Copyright (c) 2002-2006 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='3.0.0'

usage() {
	echo "gensync $myver"
	echo "usage: $0 <root> <destfile> [package_directory]"
	echo
	echo "gensync will generate a sync database by reading all PKGBUILD files"
	echo "from <root>.  gensync builds the database in a temporary directory"
	echo "and then compresses it to <destfile>."
	echo
	echo "gensync will calculate md5sums of packages in the same directory as"
	echo "<destfile>, unless an alternate [package_directory] is specified."
	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 /var/abs/local /home/mypkgs/custom.db.tar.gz"
	echo
	echo
	exit 0
}

BUILDSCRIPT="PKGBUILD"
PKGEXT="pkg.tar.gz" 

source /etc/makepkg.conf

error () {
	echo "==> ERROR: $*" >&2
}

die () {
	error $*
	exit 1
}

check_force () {
	local i
	for i in ${options[@]}; do
		local lc=$(echo $i | tr [:upper:] [:lower:])
		if [ "$lc" = "force" ]; then
			true
		fi
	done
	false
}

if [ $# -lt 2 ]; then
	usage
	exit 1
fi

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

d=$(dirname $1)
rootdir="$(cd $d && pwd)/$(basename $1)"
d="$(dirname $2)"
destdir="$(cd $d && pwd)"
destfile="$destdir/$(basename $2)"
pkgdir=""
if [ "$3" != "" ]; then
	pkgdir="$3"
fi

[ ! -d "$rootdir" ] && die "invalid root dir: $rootdir"

echo "gensync: building database entries, generating md5sums..." >&2
cd "$destdir"

pkgs=""
forcepkgs=""

for file in $(find "$rootdir"/* -name "$BUILDSCRIPT"); do
	unset pkgname pkgver pkgrel options

	source $file || die "failed to parse parse $file"
	if [ "$pkgdir" != "" ]; then
		pkgfile="$pkgdir/$pkgname-$pkgver-$pkgrel-$CARCH.$PKGEXT"
	else
		pkgfile="$destdir/$pkgname-$pkgver-$pkgrel-$CARCH.$PKGEXT"
	fi

	if [ ! -f "$pkgfile" ]; then
		error "could not find $pkgname-$pkgver-$pkgrel-$CARCH.$PKGEXT - skipping"
	else
		if check_force; then
			forcepkgs="$forcepkgs $pkgfile"
		else
			pkgs="$pkgs $pkgfile"
		fi
	fi
done

echo "creating repo DB..."

# we'll trim the output just a tad, as gensync may be used on large repos
repo-add $destfile $pkgs --force $force_pkgs \
		| grep -e "package" -e "database"

# vim: set ts=2 sw=2 noet: