#!/bin/bash

REPO=$HOME/cfo-repo/
RAWHIDE_YUM_CONF_64=$HOME/lib/repoc/conf/rawhide-x86_64.conf
RAWHIDE_YUM_CONF_32=$HOME/lib/repoc/conf/rawhide-i686.conf
BRANCHED_YUM_CONF_64=$HOME/lib/repoc/conf/branched-x86_64.conf
BRANCHED_YUM_CONF_32=$HOME/lib/repoc/conf/branched-i686.conf
ARCHLIST_64=x86_64,noarch
ARCHLIST_32=i386,i686,noarch

export http_proxy=http://yum.intra.city-fan.org:3128/
export ftp_proxy=http://yum.intra.city-fan.org:3128/

cd $REPO

grok_build_deps () {
	YUM_CONF="$1"
	ARCHLIST="$2"
	REPO_TOP="$3"
	REQUIRED_ITEMS=/tmp/required-items.$$
	REQUIRED_PKGS=/tmp/required-pkgs.$$
	(
		# Buildroot package list
		yum -c $YUM_CONF -q groupinfo buildsys-build | grep '^   ' | tr -d ' '

		# SRPM buildreqs
		for pkg in $(cfo-srpm-list $YUM_CONF)
		do
			rpm -qp --requires $pkg
		done
	) | sort -u > $REQUIRED_ITEMS

	# Figure out what packages provide these requirements
	repoquery -c $YUM_CONF --archlist $ARCHLIST --qf='%{NAME}' --whatprovides $(cat $REQUIRED_ITEMS) |
	sort -u > $REQUIRED_PKGS

	# Figure out what packages are pulled in by these requirements
	repoquery -c $YUM_CONF --archlist $ARCHLIST --output=ascii-tree --requires $(cat $REQUIRED_PKGS) |
	sed -e 's/\[.*//' | awk '{print $NF}' | sed -e 's/-[^-]*-[^-]*$//; s/^[0-9]*://' | sort -u | awk '{ printf "\t%s\n", $1 }'

	rm -f $REQUIRED_ITEMS $REQUIRED_PKGS
}

grok_build_deps $RAWHIDE_YUM_CONF_64 $ARCHLIST_64 $REPO > $HOME/lib/rawhide-pkgs-x86_64.conf
grok_build_deps $RAWHIDE_YUM_CONF_32 $ARCHLIST_32 $REPO > $HOME/lib/rawhide-pkgs-x86_32.conf

grok_build_deps $BRANCHED_YUM_CONF_64 $ARCHLIST_64 $REPO > $HOME/lib/branched-pkgs-x86_64.conf
grok_build_deps $BRANCHED_YUM_CONF_32 $ARCHLIST_32 $REPO > $HOME/lib/branched-pkgs-x86_32.conf