#!/bin/sh
#
# Extract packages needed for full install,
# by reading the group info of the repository
#

yum_conf=/tmp/g$$.yum.conf
cat << 'EOF' > $yum_conf
[main]
cachedir=/var/cache/yum/$basearch/$releasever
keepcache=0
debuglevel=2
logfile=/var/log/yum.log
exactarch=1
obsoletes=1
gpgcheck=0
plugins=1
installonly_limit=5
bugtracker_url=http://bugs.centos.org/set_project.php?project_id=23&ref=http://bugs.centos.org/bug_report_page.php?category=yum
distroverpkg=centos-release

reposdir=
[c7-media]
name=CentOS-$releasever - Media
baseurl=file:///media/cdrom
gpgcheck=0
enabled=1
EOF

trap 'rm /tmp/g'"$$"'.*; trap - 0 1 2 15; exit' 0 1 2 15

set -x

# available groups, extracted by "repoquery -g -a" and filtered out unwanted groups
#grep -v anaconda-tools
repoquery -c $yum_conf -g -a | awk '{print $1}' |
	grep -v '^conflicts-' > /tmp/g$$.g
#echo "Available groups:"
#cat /tmp/g$$.g

# extract individual packages in specified groups
repoquery -c $yum_conf --grouppkgs=all -g -l `< /tmp/g$$.g` | sort -u > /tmp/g$$.1

# recursive resolve dependent packages for each package
while read i; do
	repoquery -c $yum_conf --qf '%{NAME}' --requires --resolve --recursive $i >> /tmp/g$$.2
done < /tmp/g$$.1

# collect language packs
#    <match install="autocorr-%s" name="autocorr-en"/> -> autocorr-*
sed -ne 's/^[ 	]*<match install="\([^%]*\)-%s" .*/\1-*/p' /media/cdrom/repodata/*comps*.xml |
	xargs repoquery -c $yum_conf --qf="%{NAME}" | grep -v -- '-devel$' > /tmp/g$$.3

# sort and collect packages
sort -u /tmp/g$$.1 /tmp/g$$.2 /tmp/g$$.3 > /tmp/g$$.5

#xxx output only package basenames
#cat /tmp/g$$.5; exit

# convert into "cp *.rpm ${DESTDIR}"
#while read i; do
#	repoquery -c $yum_conf --qf 'cp -p %{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}.rpm ${DESTDIR}' >> /tmp/g$$.9
#done < /tmp/g$$.5
repoquery -c $yum_conf --qf 'cp -p %{NAME}-%{VERSION}-%{RELEASE}.%{ARCH}.rpm ${DESTDIR}' `< /tmp/g$$.5` >> /tmp/g$$.9

cat /tmp/g$$.9

#trap rm /tmp/g$$.*