add `keep alive`

[netdata.git] / netdata-installer.sh

diff --git a/netdata-installer.sh b/netdata-installer.sh
index 10f546746fda55b3b3f1d801316cb3ac1d3539ee..f38d1c665c17eff67b7979616348e5cba49e8149 100755 (executable)
--- a/netdata-installer.sh
+++ b/netdata-installer.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 # reload the user profile
 [ -f /etc/profile ] && . /etc/profile
@@ -78,6 +78,48 @@ usage() {
 USAGE
 }
 
+md5sum="$(which md5sum 2>/dev/null || command -v md5sum 2>/dev/null)"
+get_git_config_signatures() {
+       local x s file md5
+
+       [ ! -d "conf.d" ] && echo >&2 "Wrong directory." && return 1
+       [ -z "${md5sum}" -o ! -x "${md5sum}" ] && echo >&2 "No md5sum command." && return 1
+
+       echo >configs.signatures.tmp
+
+       for x in $(find conf.d -name \*.conf)
+       do
+               x="${x/conf.d\//}"
+               echo "${x}"
+               for c in $(git log --follow "conf.d/${x}" | grep ^commit | cut -d ' ' -f 2)
+               do
+                       git checkout ${c} "conf.d/${x}" || continue
+                       s="$(cat "conf.d/${x}" | md5sum | cut -d ' ' -f 1)"
+                       echo >>configs.signatures.tmp "${x}:${s}"
+                       echo "    ${s}"
+               done
+               git checkout HEAD "conf.d/${x}" || break
+       done
+
+       cat configs.signatures.tmp |\
+               grep -v "^$" |\
+               sort -u |\
+               {
+                       echo "declare -A configs_signatures=("
+                       IFS=":"
+                       while read file md5
+                       do
+                               echo "  ['${md5}']='${file}'"
+                       done
+                       echo ")"
+               } >configs.signatures
+
+       rm configs.signatures.tmp
+
+       return 0
+}
+
+
 while [ ! -z "${1}" ]
 do
        if [ "$1" = "--install" ]
@@ -100,6 +142,10 @@ do
                then
                usage
                exit 1
+       elif [ "$1" = "get_git_config_signatures" ]
+               then
+               get_git_config_signatures && exit 0
+               exit 1
        else
                echo >&2
                echo >&2 "ERROR:"
@@ -336,13 +382,89 @@ fi
 echo >&2 "Compiling netdata ..."
 run make || exit 1
 
+declare -A configs_signatures=()
+if [ -f "configs.signatures" ]
+       then
+       source "configs.signatures" || echo >&2 "ERROR: Failed to load configs.signatures !"
+fi
+
+# migrate existing configuration files
+# for node.d and charts.d
+if [ -d "${NETDATA_PREFIX}/etc/netdata" ]
+       then
+       # the configuration directory exists
+       
+       if [ ! -d "${NETDATA_PREFIX}/etc/netdata/charts.d" ]
+               then
+               run mkdir "${NETDATA_PREFIX}/etc/netdata/charts.d"
+       fi
+
+       # move the charts.d config files
+       for x in apache ap cpu_apps cpufreq example exim hddtemp load_average mem_apps mysql nginx nut opensips phpfpm postfix sensors squid tomcat
+       do
+               for y in "" ".old" ".orig"
+               do
+                       if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" ]
+                               then
+                               run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/charts.d/${x}.conf${y}"
+                       fi
+               done
+       done
+
+       if [ ! -d "${NETDATA_PREFIX}/etc/netdata/node.d" ]
+               then
+               run mkdir "${NETDATA_PREFIX}/etc/netdata/node.d"
+       fi
+
+       # move the node.d config files
+       for x in named sma_webbox snmp
+       do
+               for y in "" ".old" ".orig"
+               do
+                       if [ -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" ]
+                               then
+                               run mv -f "${NETDATA_PREFIX}/etc/netdata/${x}.conf${y}" "${NETDATA_PREFIX}/etc/netdata/node.d/${x}.conf${y}"
+                       fi
+               done
+       done
+fi
+
 # backup user configurations
 installer_backup_suffix="${PID}.${RANDOM}"
 for x in $(find "${NETDATA_PREFIX}/etc/netdata/" -name '*.conf' -type f)
 do
        if [ -f "${x}" ]
                then
-               cp -p "${x}" "${x}.installer_backup.${installer_backup_suffix}"
+               # 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
+               fi
 
        elif [ -f "${x}.installer_backup.${installer_backup_suffix}" ]
                then
@@ -462,7 +584,7 @@ fi
 
 echo >&2
 echo >&2 "Fixing directories (user: ${NETDATA_USER})..."
-for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}" "${NETDATA_LIB_DIR}"
+for x in "${NETDATA_WEB_DIR}" "${NETDATA_CONF_DIR}" "${NETDATA_CACHE_DIR}" "${NETDATA_LOG_DIR}" "${NETDATA_LIB_DIR}" "${NETDATA_CONF_DIR}/python.d" "${NETDATA_CONF_DIR}/charts.d" "${NETDATA_CONF_DIR}/node.d"
 do
        if [ ! -d "${x}" ]
                then