define-alpine/modules/socklog.lua

add_packages({ "socklog" })
-- Thanks to https://github.com/void-linux/socklog-void

modules.runit.add_service("socklog-unix",
[[#!/bin/sh
exec chpst -U nobody:nogroup socklog unix /dev/log 2>&1]],
[[#!/bin/sh
exec svlogd -ttt /var/log/socklog/*]])
modules.data.add_data_dir("/data/socklog/", "/var/log/socklog", "root", "root")
add_file("/etc/socklog/everything", [[!syslog-stripdate
-auth.*
-authpriv.*]])
modules.data.add_data_link("/etc/socklog/everything", "/var/log/socklog/everything/config")

-- TODO: package
add_file("/usr/local/bin/svlogtail", [[#!/bin/sh

usage () {
	cat <<-'EOF'
	svlogtail [-f] [LOG...] - show svlogd logs conveniently
	Without arguments, show current logs of all services, uniquely.
	With arguments, show all logs of mentioned services
	
	With -f, follow log output.
	EOF
}

globexist() {
	[ -f "$1" ]
}

IFS='
'

fflag=false
if [ "$1" = -f ]; then
	shift
	fflag=true
fi

if [ $# = 0 ]; then
	cat /var/log/socklog/*/current | sort -u
	if $fflag; then
		tail -Fq -n0 /var/log/socklog/*/current | uniq
	fi
else
	old=
	cur=
	for log; do
		case "$log" in
			-*) usage; exit 1;;
		esac
		if [ -d /var/log/socklog/$log ]; then
			if globexist /var/log/socklog/$log/*.[us]; then
				old="$old$IFS/var/log/socklog/$log/*.[us]"
			fi
			cur="$cur$IFS/var/log/socklog/$log/current"
		else
			echo "no logs for $log" 1>&2
                        exit 1
		fi
	done
	cat $old $cur | sort
	if $fflag; then
		tail -Fq -n0 $cur
	fi
fi]])
chmod("/usr/local/bin/svlogtail", "700")

-- TODO: reemplazar con nanoklogd https://github.com/void-linux/socklog-void/blob/master/nanoklogd.c
modules.runit.add_service("log-kernel",
[[#!/bin/sh
exec cat /proc/kmsg]],
[[#!/bin/sh
exec logger -p kern.info -t '']])