[dev-db/postgresql] add from pr with improved init script
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204
dev-db/postgresql/files/postgresql.init-9.3-r1
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204
dev-db/postgresql/files/postgresql.init-9.3-r1
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#!/sbin/openrc-run
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# Copyright 1999-2023 Gentoo Foundation
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# Distributed under the terms of the GNU General Public License v2
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extra_started_commands="reload promote"
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PG_CTL="/usr/@LIBDIR@/postgresql-@SLOT@/bin/pg_ctl"
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PG_CONTROLDATA="/usr/@LIBDIR@/postgresql-@SLOT@/bin/pg_controldata"
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description="PostgreSQL @SLOT@ -- the world's most advanced open source database --
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${RC_SERVICE} is a wrapper around pg_ctl with additional administrative checks
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and convenience"
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# pid is read by fscanf(3) with the first argument which should be integer,
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# so this multiple line pidfile can be used.
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PIDFILE="${DATA_DIR%/}/postmaster.pid"
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get_config() {
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[ -f "${PGDATA%/}/postgresql.conf" ] || return 1
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eval echo $(sed -e 's:#.*::' "${PGDATA%/}/postgresql.conf" \
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| awk '$1 == "'$1'" { print ($2 == "=" ? $3 : $2) }')
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}
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depend() {
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use net
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provide postgresql
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if [ "$(get_config log_destination)" = "syslog" ] ; then
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use logger
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fi
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}
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configured_port=${PGPORT}
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config_port() {
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local port=$(get_config port)
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[ -z ${port} ] || configured_port=${port}
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}
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checkconfig() {
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# Check that DATA_DIR has been set
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if [ -z "${DATA_DIR}" ] ; then
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eerror "DATA_DIR not set"
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eerror "HINT: Perhaps you need to update /etc/conf.d/postgresql-@SLOT@"
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return 1
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fi
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# Check that DATA_DIR exists
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if [ ! -d "${DATA_DIR}" ] ; then
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eerror "Directory not found: ${DATA_DIR}"
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eerror "HINT: Ensure that DATA_DIR points to the right path."
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eerror "HINT: Or perhaps you need to create the database cluster:"
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eerror " emerge --config dev-db/postgresql:@SLOT@"
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return 1
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fi
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# Check for the existence of PostgreSQL's config files, and set the
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# proper mode and ownership.
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# Only three files should be checked as potentially other files
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# may be in PGDATA that should not be touched.
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local file
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for file in postgresql pg_hba pg_ident ; do
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file="${PGDATA%/}/${file}.conf"
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if [ -f "${file}" ] ; then
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checkpath -f -m 0600 -o postgres:postgres "${file}"
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else
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eerror "${file} not found"
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eerror "HINT: mv ${DATA_DIR%/}/*.conf ${PGDATA}"
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return 1
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fi
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done
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# Set the proper permission for the socket paths and create it if
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# it doesn't exist.
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set -f
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local IFS=',' s
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for s in ${PG_SOCKET_DIRECTORIES}; do
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checkpath -d -m 1775 -o root:postgres "${s}"
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if [ -e "${s%/}/.s.PGSQL.${configured_port}" ] ; then
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eerror "Socket conflict."
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eerror "A server is already listening on:"
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eerror " ${s%/}/.s.PGSQL.${configured_port}"
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eerror "HINT: Change PGPORT to listen on a different socket."
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return 1
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fi
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done
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set +f
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}
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start() {
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config_port
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checkconfig || return 1
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ebegin "Starting PostgreSQL @SLOT@"
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rm -f "${DATA_DIR%/}/postmaster.pid"
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export PGPORT=${configured_port}
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eval "${PG_EXTRA_ENV:+export} ${PG_EXTRA_ENV}"
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start-stop-daemon --start --user postgres:postgres \
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--pidfile "${PIDFILE}" \
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--exec "${PG_CTL}" -- \
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start \
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-s -w -t ${START_TIMEOUT} -l "${DATA_DIR%/}/postmaster.log" \
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-D "${PGDATA}" \
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-o "-c data_directory=\"${DATA_DIR}\" \
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-c unix_socket_directories=\"${PG_SOCKET_DIRECTORIES}\" \
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${PGOPTS}"
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local retval=$?
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if [ ${retval} -ne 0 ] ; then
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eerror "Check the log for a possible explanation of the above error."
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eerror "The log may be located at:"
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eerror " ${DATA_DIR%/}/postmaster.log"
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eerror "Or wherever you configured PostgreSQL @SLOT@ to log."
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fi
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eend ${retval}
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}
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stop() {
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: "${NICE_TIMEOUT:=5}"
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: "${RUDE_TIMEOUT:=5}"
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: "${FORCE_TIMEOUT:=5}"
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# The SIGTERM is the default signal for s-s-d, and corresponds to the
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# default stop mode 'smart' of postgres.
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local retry="SIGTERM/${NICE_TIMEOUT}"
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local seconds=${NICE_TIMEOUT}
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if yesno RUDE_QUIT; then
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# retry fast stop mode after NICE_TIMEOUT
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retry="${retry}/SIGINT/${RUDE_TIMEOUT}"
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seconds=$(( ${seconds} + ${RUDE_TIMEOUT} ))
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fi
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if yesno FORCE_QUIT; then
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# retry immediate stop mode after RUDE_TIMEOUT
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retry="${retry}/SIGQUIT/${FORCE_TIMEOUT}"
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seconds=$(( ${seconds} + ${FORCE_TIMEOUT} ))
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fi
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ebegin "Stopping PostgreSQL @SLOT@ (this can take up to ${seconds} seconds)"
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start-stop-daemon --stop --retry ${retry} --pidfile ${PIDFILE}
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local retval=$?
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if [ ${retval} -eq 0 ] ; then
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# clean up remaining socket files for the case which postgres has crashed before stopping
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config_port
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local IFS=',' s
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for s in ${PG_SOCKET_DIRECTORIES}; do
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if ls -1 "${s%/}/.s.PGSQL.${configured_port}"* >/dev/null 2>&1; then
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ewarn "cleaning up remaining socket files in '$s'"
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rm -vf "${s%/}/.s.PGSQL.${configured_port}"*
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fi
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done
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fi
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eend ${retval}
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}
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status() {
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default_status
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local retval=$?
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local postopts_file="${DATA_DIR%/}/postmaster.opts"
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if [ $retval -eq 0 -a -r "${postopts_file}" ] ; then
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einfo "opts: $(cat ${postopts_file})"
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fi
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}
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description_reload="Simply sends the postgres process a SIGHUP signal, causing
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it to reread its configuration files (postgresql.conf, pg_hba.conf,
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etc.). This allows changing of configuration-file options that do not
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require a complete restart to take effect."
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reload() {
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ebegin "Reloading PostgreSQL @SLOT@ configuration"
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start-stop-daemon \
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--signal SIGHUP \
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--user postgres:postgres \
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--pidfile "${PIDFILE}"
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eend $?
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}
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description_promote="If the server is in standby, it is commanded to exit
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recovery and begin read-write operations."
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promote() {
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ebegin "Promoting PostgreSQL @SLOT@"
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local retval=1
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if "${PG_CONTROLDATA}" -D "${DATA_DIR}" 2>/dev/null \
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| grep 'in archive recovery' >/dev/null 2>&1; then
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local promotefile="${DATA_DIR%/}/promote"
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checkpath -q -f -m 644 -o postgres:postgres "${promotefile}" && \
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start-stop-daemon \
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--signal SIGUSR1 \
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--user postgres:postgres \
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--pidfile "${PIDFILE}"
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retval=$?
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if [ ${retval} -ne 0 ] ; then
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rm -f "${promotefile}"
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fi
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else
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eerror "server is not in standby mode"
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fi
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eend ${retval}
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}
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