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#!/sbin/openrc-run

#
# We support both slot-agnostic and slotted versions of the init
# script. The slotted versions would be named something like
# php-fpm-php7.1, and PHP_SLOT below would be set to "php7.1". But we
# also support a general init script named "php-fpm" that uses
# whatever the currently-eselected fpm implementation is. In that
# case, PHP_SLOT winds up set to "php-fpm" and we need to get the
# actual slot by querying eselect.
#
# An open question is, what should we do if the user has both a
# slot-agnostic and slotted init script, which happen to point to the
# same slot? In other words, if the user has a php-fpm init script and
# slot php7.1 eselected, but also a php-fpm-php7.1 init script. Should
# they manage the same instance? I think so...
#
PHP_SLOT="${SVCNAME#php-fpm-}"
if [ "${PHP_SLOT}" = "php-fpm" ] ; then
    PHP_SLOT="$(eselect php show fpm)"
fi

PHP_FPM_CONF="@SYSCONFDIR@/php/fpm-${PHP_SLOT}/php-fpm.conf"

command="@LIBDIR@/${PHP_SLOT}/bin/php-fpm"
pidfile="/run/php-fpm-${PHP_SLOT}.pid"

# Force the daemon into the background and make it use our pid file,
# regardless of what the config file says.
command_args="--fpm-config ${PHP_FPM_CONF} --pid ${pidfile} --daemonize"
extra_started_commands="reload"
extra_commands="configtest"

# Wait five seconds after starting for the pidfile to show up.
start_stop_daemon_args="--wait 5000 ${PHP_FPM_UMASK:+--umask ${PHP_FPM_UMASK}}"

configtest() {
    ebegin "Testing PHP FastCGI Process Manager configuration"

    # Hide the "test is successful" message (which goes to stderr) if
    # the test passed, but show the entire output if the test failed
    # because it may contain hints about the problem.
    OUTPUT=$( ${command} ${command_args} --test 2>&1 )

    # Save this so `echo` doesn't clobber it.
    local exit_code=$?
    [ $exit_code -ne 0 ] && echo "${OUTPUT}" >&2
    eend $exit_code
}

start_pre() {
    configtest || return $?
}

reload() {
    configtest || return $?
    ebegin "Reloading PHP FastCGI Process Manager"
    start-stop-daemon --signal USR2 --pidfile "${pidfile}"
    eend $?
}