saving uncommitted changes in /etc prior to emerge run

init.d/._cfg0000_syslog-ng

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+#!/sbin/runscript
+# Copyright 1999-2015 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Id$
+
+SYSLOG_NG_CONFIGFILE=${SYSLOG_NG_CONFIGFILE:-/etc/syslog-ng/${RC_SVCNAME}.conf}
+SYSLOG_NG_STATEFILE_DIR=${SYSLOG_NG_STATEFILE_DIR:-/var/lib/syslog-ng}
+SYSLOG_NG_STATEFILE=${SYSLOG_NG_STATEFILE:-${SYSLOG_NG_STATEFILE_DIR}/syslog-ng.persist}
+SYSLOG_NG_PIDFILE_DIR=${SYSLOG_NG_PIDFILE_DIR:-/run}
+SYSLOG_NG_PIDFILE=${SYSLOG_NG_PIDFILE:-${SYSLOG_NG_PIDFILE_DIR}/${RC_SVCNAME}.pid}
+
+SYSLOG_NG_GROUP=${SYSLOG_NG_GROUP:-root}
+SYSLOG_NG_USER=${SYSLOG_NG_USER:-root}
+
+command="/usr/sbin/syslog-ng"
+command_args="--persist-file \"${SYSLOG_NG_STATEFILE}\" --cfgfile \"${SYSLOG_NG_CONFIGFILE}\" --pidfile \"${SYSLOG_NG_PIDFILE}\" ${SYSLOG_NG_OPTS}"
+extra_commands="checkconfig"
+extra_started_commands="reload"
+pidfile="${SYSLOG_NG_PIDFILE}"
+start_stop_daemon_args="--user \"${SYSLOG_NG_USER}\":\"${SYSLOG_NG_GROUP}\""
+description="Syslog-ng is a syslog replacement with advanced filtering features."
+description_checkconfig="Check the configuration file that will be used by \"start\""
+description_reload="Reload the configuration without exiting"
+required_files="${SYSLOG_NG_CONFIGFILE}"
+required_dirs="${SYSLOG_NG_PIDFILE_DIR}"
+
+depend() {
+	use clock
+	need hostname localmount
+	after bootmisc
+	provide logger
+}
+
+checkconfig() {
+	ebegin "Checking your configfile (${SYSLOG_NG_CONFIGFILE})"
+	syslog-ng -s -f "${SYSLOG_NG_CONFIGFILE}"
+	eend $? "Configuration error. Please fix your configfile (${SYSLOG_NG_CONFIGFILE})"
+}
+
+start_pre() {
+	checkconfig || return 1
+	checkpath \
+		-d \
+		--mode 0700 \
+		--owner "${SYSLOG_NG_USER}:${SYSLOG_NG_GROUP}" \
+		"${SYSLOG_NG_STATEFILE_DIR}"
+}
+
+stop_pre() {
+	[ "$RC_CMD" = restart ] && sleep 1
+	return 0
+}
+
+reload() {
+	checkconfig || return 1
+	ebegin "Reloading configuration and re-opening log files"
+	start-stop-daemon --signal HUP --pidfile "${pidfile}"
+	eend $?
+}

logrotate.d/._cfg0000_syslog-ng

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+# $Id$
+#
+# Syslog-ng logrotate snippet for Gentoo Linux
+# contributed by Michael Sterrett
+#
+
+/var/log/messages {
+    missingok
+    sharedscripts
+    postrotate
+        /etc/init.d/syslog-ng reload > /dev/null 2>&1 || true
+    endscript
+}

syslog-ng/._cfg0000_scl.conf

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+#############################################################################
+# Copyright (c) 2010-2014 BalaBit IT Ltd, Budapest, Hungary
+#
+# This program is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License version 2 as published
+# by the Free Software Foundation, or (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+#
+# As an additional exemption you are allowed to compile & link against the
+# OpenSSL libraries as published by the OpenSSL project. See the file
+# COPYING for details.
+#
+#############################################################################
+#
+# This file is placed into /etc/syslog-ng in order to make it trivial to
+# include in user written syslog-ng.conf files.  It sets up 'scl-root' and
+# `include-path`, then includes all SCL supplied plugins.
+#
+
+@define scl-root "`syslog-ng-data`/include/scl"
+@define include-path "`include-path`:`syslog-ng-data`/include"
+
+@include 'scl/*/*.conf'

syslog-ng/._cfg0001_syslog-ng.conf

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+@version: 3.6
+# $Id$
+#
+# Syslog-ng default configuration file for Gentoo Linux
+
+# https://bugs.gentoo.org/show_bug.cgi?id=426814
+@include "scl.conf"
+
+options { 
+	threaded(yes);
+	chain_hostnames(no); 
+
+	# The default action of syslog-ng is to log a STATS line
+	# to the file every 10 minutes.  That's pretty ugly after a while.
+	# Change it to every 12 hours so you get a nice daily update of
+	# how many messages syslog-ng missed (0).
+	stats_freq(43200); 
+	# The default action of syslog-ng is to log a MARK line
+	# to the file every 20 minutes.  That's seems high for most
+	# people so turn it down to once an hour.  Set it to zero
+	# if you don't want the functionality at all.
+	mark_freq(3600); 
+};
+
+source src { system(); internal(); };
+
+destination messages { file("/var/log/messages"); };
+
+# By default messages are logged to tty12...
+destination console_all { file("/dev/tty12"); };
+# ...if you intend to use /dev/console for programs like xconsole
+# you can comment out the destination line above that references /dev/tty12
+# and uncomment the line below.
+#destination console_all { file("/dev/console"); };
+
+log { source(src); destination(messages); };
+log { source(src); destination(console_all); };