usage()

{

cat << EOF

usage: $0 [-t <tag(s)>]

This script generate mash repo from all SIG tags.

OPTIONS:

   -d          mash repo destination : default to $MASH_DEST

   -f          koji instance fqdn : default to $KOJI_FQDN

   -t          tag(s) : storage7-release, storage7-testing etc...

EOF

}

# Global config

# koji binary

KOJI="/usr/bin/koji"

# mash binary

MASH="/usr/bin/mash"

# default fqdn

KOJI_FQDN="cbs.centos.org"

# mash config containing mash.conf

MASH_CONF="/etc/mash"

# repos destination

MASH_DEST="/mnt/kojishare/repos"

#cache

MASH_CACHE="/var/cache/cbs-mash"

# log directory

LOG_DIR="/var/log/mash"

# End Global

optiond=false

optionf=false

optiont=false

optionv=false

while getopts ":hvd:f:t:" OPTION

do

	case ${OPTION} in

    h)

             usage

             exit 0

             ;;

	t)

             optiont=true

             TAGS="${OPTARG}"

             ;;

	d)

             optiond=true

             MASH_DEST="${OPTARG}"

             ;;

	f)

             optionf=true

             KOJI_FQDN="${OPTARG}"

             ;;

	v)

	         optionv=true

	         ;;

    ?)

             exit 0

             ;;

    :)

             echo "Option -${OPTARG} requires an argument."

             exit 1

             ;;

    esac

done

shift $((${OPTIND} - 1))

# Repoviewurl in mash config

MASH_VIEWURL="http://$KOJI_FQDN/repos"

# Check if user is allowed to send command to koji and has 'admin' permission

PERMS=`${KOJI} list-permissions --mine`

for P in $PERMS

do

    [[ $P == 'admin' ]] && ADMIN=true && break

done

if [ "$ADMIN" != true ]

then

	echo "[ERROR] Koji misconfigure/missing admin privilege for creating SIG tags"

	exit 1

fi

if ( ! ${optiont} )

then

	CANDIDATE_TAGS=`${KOJI} list-tags | grep "\-candidate"`

	TEST_TAGS=`${KOJI} list-tags | grep "\-testing"`

	RELEASE_TAGS=`${KOJI} list-tags | grep "\-release"`

	PENDING_TAGS=`${KOJI} list-tags | grep "\-pending"`

	TAGS="${CANDIDATE_TAGS} ${TEST_TAGS} ${RELEASE_TAGS} ${PENDING_TAGS}"

fi

print_mash_template()

{

	local tag=$1

	local arches=$2

cat << EOF

[${tag}]

rpm_path = ${MASH_DEST}/${tag}/%(arch)s/os/Packages

repodata_path = ${MASH_DEST}/${tag}/%(arch)s/os/

source_path = source/SRPMS

debuginfo = True

multilib = False

multilib_method = devel

tag = ${tag}

inherit = False

strict_keys = False

repoviewurl = ${MASH_VIEWURL}/${tag}/%(arch)s/os/

repoviewtitle = "${tag^^}"

arches = ${arches}

delta = True

EOF

}

mash_prepare ()

{

	local tag=$1

	local log=$2

	local arches=$3

	local conf=`mktemp`

	( $optionv ) && echo "* Checking ${tag} mash config..."

	# config mash already ok 

	( $optionv ) && echo " -> [INFO] creating mash config: ${tag}.mash..."

	print_mash_template "${tag}" "${arches}" > $conf 

	[ -f ${MASH_CONF}/${tag}.mash ] && diff ${MASH_CONF}/${tag}.mash $conf &>> $log

	if [ $? -gt 0 ]

	then

		( $optionv ) && echo " -> [INFO] updating mash config ${tag}.mash"

		mv $conf ${MASH_CONF}/${tag}.mash

		( $optionv ) && echo " -> [INFO] cleaning mash cache ${tag}.buildlist"

        [ -f $MASH_CACHE/${tag}.buildlist ] && rm $MASH_CACHE/${tag}.buildlist

	else

		rm $conf

	fi

}

mash_run () {

	local tag=$1

	local log=$2

	${MASH} -p ${MASH_DEST}/ -o ${MASH_DEST}/ ${tag} &> ${log}

	if [ $? -gt 0 ] 

	then

		echo " -> [ERROR] mash run failed ${log}"

		[ -f ${MASH_CACHE}/${tag}.buildlist ] && rm -rf $MASH_CACHE/${tag}.buildlist

	fi

	( $optionv ) && echo " -> [INFO] mash run succeeded ${log}"

}

# Ensure the cache directory is available

[ ! -d $MASH_CACHE ] && mkdir -p $MASH_CACHE

if ( ! ${optiont} )

then

	# Ensure we do not have parallel runs

	pidfile=/var/tmp/mash-run.pid

	if [ -e $pidfile ]; then

		pid=`cat $pidfile`

		if kill -0 &> /dev/null $pid; then

			( $optionv ) && echo "Mash is already running PID:$pid"

			exit 1

		else

			rm $pidfile &>/dev/null

		fi

	fi

	echo $$ > $pidfile

fi

# Cache target list as it cannot include unknown tag at this point

TARGETS=`mktemp`

${KOJI} list-targets --quiet > $TARGETS

for TAG in ${TAGS}

do

	( $optionv ) && echo "Checking $TAG ..."

	ARCHES=""

	BUILDTAG=""

	LOG="${LOG_DIR}/mash.${TAG}.log"

	FAKETAG=${TAG/testing/candidate}

	FAKETAG=${FAKETAG/release/candidate}

	BUILDTAG=`grep ${FAKETAG} ${TARGETS} | awk '{print $2}'`

	[ ! -z "$BUILDTAG" ] && ARCHES=`${KOJI} taginfo ${BUILDTAG} | grep Arches | cut -d ":" -f 2-`

	[ -z "$ARCHES" ] && ARCHES="x86_64"

	# Mash not happy with i686 wants i386

	ARCHES=${ARCHES/i686/i386}

	mash_prepare "${TAG}" "${LOG}" "${ARCHES}"

	if [ ! -f $MASH_CACHE/$TAG.buildlist ]

	then

        	${KOJI} list-tagged $TAG > $MASH_CACHE/$TAG.buildlist

	else

        	BUILDLIST=`mktemp`

        	${KOJI} list-tagged $TAG > $BUILDLIST

		diff $BUILDLIST $MASH_CACHE/$TAG.buildlist &>> $LOG

		if [ $? -eq 0 ]

		then

			echo " -> skipping. No new build in $TAG" &>> $LOG

			[ -f $BUILDLIST ] &&  rm -rf $BUILDLIST

			continue

		else

               		echo " -> updating cache for $TAG" &>> $LOG

			cp $BUILDLIST $MASH_CACHE/$TAG.buildlist

       		fi

		[ -f $BUILDLIST ] &&  rm -rf $BUILDLIST

	fi

	mash_run "${TAG}" "${LOG}" &

done

wait

rm $pidfile

exit 0