From acf0495000441c20b2664004fcaf934858a6830b Mon Sep 17 00:00:00 2001
From: "Costa Tsaousis (ktsaou)" <costa@tsaousis.gr>
Date: Thu, 14 Jul 2016 21:12:20 +0300
Subject: installer keeps old version of file and creates a new one with the
 stock version as .orig

---
 netdata-installer.sh | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'netdata-installer.sh')

diff --git a/netdata-installer.sh b/netdata-installer.sh
index 3a7a8d3530..dd2ce97322 100755
--- a/netdata-installer.sh
+++ b/netdata-installer.sh
@@ -394,16 +394,32 @@ for x in $(find "${NETDATA_PREFIX}/etc/netdata/" -name '*.conf' -type f)
 do
 	if [ -f "${x}" ]
 		then
+		# make a backup of the configuration file
+		cp -p "${x}" "${x}.old"
+
 		if [ -z "${md5sum}" -o ! -x "${md5sum}" ]
 			then
+			# we don't have md5sum - keep it
 			cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
 		else
+			# find it relative filename
 			f="${x/*\/etc\/netdata\//}"
+
+			# find its checksum
 			md5="$(cat "${x}" | ${md5sum} | cut -d ' ' -f 1)"
+
+			# copy the original
+			if [ -f "conf.d/${f}" ]
+				then
+				cp "conf.d/${f}" "${x}.orig"
+			fi
+
 			if [ "${configs_signatures[${md5}]}" = "${f}" ]
 				then
+				# it is a stock version - don't keep it
 				echo >&2 "File '${x}' is stock version."
 			else
+				# edited by user - keep it
 				echo >&2 "File '${x}' has been edited by user."
 				cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
 			fi
-- 
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