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#!/bin/bash
# Distributed under the terms of the GNU General Public License v2
# $Header: $
ATOM=
CAT=
PN=
ACTION=
PRETEND=
CMD="emerge -Cav"
WEBAPP_DIR="/usr/share/webapps"
WEBAPP_CONFIG=
[[ -z ${RC_GOT_FUNCTIONS} ]] && source /etc/init.d/functions.sh
function help() {
echo "Remove obsolete and unused versions of web applications"
echo
echo "Usage:"
echo " $0 [options] [action] app_name"
echo
echo "Options:"
echo " -p, --pretend"
echo " Instead of cleaning, simply show the commands to be executed"
echo
echo "Actions:"
echo " -P, --prune"
echo " Removes all but the latest version of a package. Similar to"
echo " emerge --prune"
echo
echo " -C, --clean-unused"
echo " Removes all versions of a web application that have not been"
echo " installed into a virtual host"
echo
echo " -h, --help"
echo " Displays this help message"
echo
echo "If multiple actions are given, only the action specified last will"
echo "be executed"
}
function sanity_checks() {
WEBAPP_CONFIG=$(which webapp-config)
if [ "${WEBAPP_CONFIG}x" == "x" ]; then
eerror "webapp-config not found"
exit 1
fi
if [[ -z "${ACTION}" ]]; then
eerror "Please specify a valid action"
exit 1
fi
if [[ -z ${PN} && ${ACTION} != "help" ]]; then
eerror "Please specify a web application to be cleaned"
exit 1
fi
if [[ "${CAT}x" == "x" || "${PN}x" == "x" ]]; then
eerror "Package name must be in the form CATEGORY/PN"
exit 1
fi
if [[ ! -d "${WEBAPP_DIR}/${CAT}/${PN}" && ! -d "${WEBAPP_DIR}/${PN}" ]]; then
eerror "${PN} not found"
exit 1
fi
}
function prune() {
if [[ $(ls -1 "${WEBAPP_DIR}/${PN}" | wc -l) == "1" ]]; then
einfo "Nothing to clean"
return
else
local BEST_VERSION=$(ls ${WEBAPP_DIR}/${PN} | sort -nr | head -n 1)
for x in $(ls ${WEBAPP_DIR}/${PN}); do
if [[ ${BEST_VERSION} != ${x} ]]; then
CMD="${CMD} =${PN}-${x}"
fi
done
einfo "Multiple versions of ${PN} detected."
if [[ -z ${PRETEND} ]]; then
einfo "Running ${CMD}"
${CMD}
else
einfo "To prune, run the following command:"
einfo "${CMD}"
fi
fi
}
function clean_unused() {
local output=$(${WEBAPP_CONFIG} --lui ${PN})
if [[ -z ${output} ]] ; then
einfo "Nothing to clean"
return
else
CMD="${CMD} =${output}"
einfo "Unused versions of ${PN} detected."
if [[ -z ${PRETEND} ]]; then
einfo "Running ${CMD}"
${CMD}
else
einfo "To clean, run the following command:"
einfo "${CMD}"
fi
fi
}
function process_opts() {
if [[ -z $1 ]]; then
help
exit 0
fi
while [ "$1+" != "+" ]; do
case "$1" in
-p|--pretend)
PRETEND="yes"
;;
-P|--prune)
ACTION="prune"
;;
-C|--clean-unused)
ACTION="clean_unused"
;;
-h|--help)
ACTION="help"
;;
*)
ATOM="${1}"
parse_atom
;;
esac
shift
done
}
parse_atom() {
local pos=$(expr index "${ATOM}" "/")
CAT=${ATOM:0:$pos - 1}
PN=${ATOM:$pos}
}
process_opts $@
sanity_checks
${ACTION}
|
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