Merging upstream version 1.14.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

2 files changed, 1651 insertions, 0 deletions

diff --git a/collectors/charts.d.plugin/Makefile.in b/collectors/charts.d.plugin/Makefile.in
new file mode 100644
index 00000000..99b331b5
--- /dev/null
+++ b/collectors/charts.d.plugin/Makefile.in
@@ -0,0 +1,960 @@
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+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+
+# install these files
+dist_charts_DATA = $(NULL) ap/ap.chart.sh apache/apache.chart.sh \
+	apcupsd/apcupsd.chart.sh cpu_apps/cpu_apps.chart.sh \
+	cpufreq/cpufreq.chart.sh example/example.chart.sh \
+	exim/exim.chart.sh hddtemp/hddtemp.chart.sh \
+	libreswan/libreswan.chart.sh \
+	load_average/load_average.chart.sh mem_apps/mem_apps.chart.sh \
+	mysql/mysql.chart.sh nginx/nginx.chart.sh nut/nut.chart.sh \
+	opensips/opensips.chart.sh phpfpm/phpfpm.chart.sh \
+	postfix/postfix.chart.sh sensors/sensors.chart.sh \
+	squid/squid.chart.sh tomcat/tomcat.chart.sh
+userchartsconfigdir = $(configdir)/charts.d
+dist_userchartsconfig_DATA = \
+    .keep \
+    $(NULL)
+
+chartsconfigdir = $(libconfigdir)/charts.d
+dist_chartsconfig_DATA = $(NULL) ap/ap.conf apache/apache.conf \
+	apcupsd/apcupsd.conf cpu_apps/cpu_apps.conf \
+	cpufreq/cpufreq.conf example/example.conf exim/exim.conf \
+	hddtemp/hddtemp.conf libreswan/libreswan.conf \
+	load_average/load_average.conf mem_apps/mem_apps.conf \
+	mysql/mysql.conf nginx/nginx.conf nut/nut.conf \
+	opensips/opensips.conf phpfpm/phpfpm.conf postfix/postfix.conf \
+	sensors/sensors.conf squid/squid.conf tomcat/tomcat.conf
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .in
+$(srcdir)/Makefile.in: @MAINTAINER_MODE_TRUE@ $(srcdir)/Makefile.am $(top_srcdir)/build/subst.inc $(srcdir)/ap/Makefile.inc $(srcdir)/apache/Makefile.inc $(srcdir)/apcupsd/Makefile.inc $(srcdir)/cpu_apps/Makefile.inc $(srcdir)/cpufreq/Makefile.inc $(srcdir)/example/Makefile.inc $(srcdir)/exim/Makefile.inc $(srcdir)/hddtemp/Makefile.inc $(srcdir)/libreswan/Makefile.inc $(srcdir)/load_average/Makefile.inc $(srcdir)/mem_apps/Makefile.inc $(srcdir)/mysql/Makefile.inc $(srcdir)/nginx/Makefile.inc $(srcdir)/nut/Makefile.inc $(srcdir)/opensips/Makefile.inc $(srcdir)/phpfpm/Makefile.inc $(srcdir)/postfix/Makefile.inc $(srcdir)/sensors/Makefile.inc $(srcdir)/squid/Makefile.inc $(srcdir)/tomcat/Makefile.inc $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --gnu collectors/charts.d.plugin/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --gnu collectors/charts.d.plugin/Makefile
+.PRECIOUS: Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
+	esac;
+$(top_srcdir)/build/subst.inc $(srcdir)/ap/Makefile.inc $(srcdir)/apache/Makefile.inc $(srcdir)/apcupsd/Makefile.inc $(srcdir)/cpu_apps/Makefile.inc $(srcdir)/cpufreq/Makefile.inc $(srcdir)/example/Makefile.inc $(srcdir)/exim/Makefile.inc $(srcdir)/hddtemp/Makefile.inc $(srcdir)/libreswan/Makefile.inc $(srcdir)/load_average/Makefile.inc $(srcdir)/mem_apps/Makefile.inc $(srcdir)/mysql/Makefile.inc $(srcdir)/nginx/Makefile.inc $(srcdir)/nut/Makefile.inc $(srcdir)/opensips/Makefile.inc $(srcdir)/phpfpm/Makefile.inc $(srcdir)/postfix/Makefile.inc $(srcdir)/sensors/Makefile.inc $(srcdir)/squid/Makefile.inc $(srcdir)/tomcat/Makefile.inc:
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: @MAINTAINER_MODE_TRUE@ $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): @MAINTAINER_MODE_TRUE@ $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+install-dist_chartsSCRIPTS: $(dist_charts_SCRIPTS)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_charts_SCRIPTS)'; test -n "$(chartsdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(chartsdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  if test -f "$$d$$p"; then echo "$$d$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n' \
+	    -e 'h;s|.*|.|' \
+	    -e 'p;x;s,.*/,,;$(transform)' | sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1; } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) { files[d] = files[d] " " $$1; \
+	      if (++n[d] == $(am__install_max)) { \
+		print "f", d, files[d]; n[d] = 0; files[d] = "" } } \
+	    else { print "f", d "/" $$4, $$1 } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	     if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	     test -z "$$files" || { \
+	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(chartsdir)$$dir'"; \
+	       $(INSTALL_SCRIPT) $$files "$(DESTDIR)$(chartsdir)$$dir" || exit $$?; \
+	     } \
+	; done
+
+uninstall-dist_chartsSCRIPTS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_charts_SCRIPTS)'; test -n "$(chartsdir)" || exit 0; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	       sed -e 's,.*/,,;$(transform)'`; \
+	dir='$(DESTDIR)$(chartsdir)'; $(am__uninstall_files_from_dir)
+install-dist_pluginsSCRIPTS: $(dist_plugins_SCRIPTS)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_plugins_SCRIPTS)'; test -n "$(pluginsdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pluginsdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pluginsdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  if test -f "$$d$$p"; then echo "$$d$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n' \
+	    -e 'h;s|.*|.|' \
+	    -e 'p;x;s,.*/,,;$(transform)' | sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1; } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) { files[d] = files[d] " " $$1; \
+	      if (++n[d] == $(am__install_max)) { \
+		print "f", d, files[d]; n[d] = 0; files[d] = "" } } \
+	    else { print "f", d "/" $$4, $$1 } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	     if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	     test -z "$$files" || { \
+	       echo " $(INSTALL_SCRIPT) $$files '$(DESTDIR)$(pluginsdir)$$dir'"; \
+	       $(INSTALL_SCRIPT) $$files "$(DESTDIR)$(pluginsdir)$$dir" || exit $$?; \
+	     } \
+	; done
+
+uninstall-dist_pluginsSCRIPTS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_plugins_SCRIPTS)'; test -n "$(pluginsdir)" || exit 0; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	       sed -e 's,.*/,,;$(transform)'`; \
+	dir='$(DESTDIR)$(pluginsdir)'; $(am__uninstall_files_from_dir)
+install-dist_chartsDATA: $(dist_charts_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_charts_DATA)'; test -n "$(chartsdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(chartsdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(chartsdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(chartsdir)" || exit $$?; \
+	done
+
+uninstall-dist_chartsDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_charts_DATA)'; test -n "$(chartsdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(chartsdir)'; $(am__uninstall_files_from_dir)
+install-dist_chartsconfigDATA: $(dist_chartsconfig_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_chartsconfig_DATA)'; test -n "$(chartsconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(chartsconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(chartsconfigdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(chartsconfigdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(chartsconfigdir)" || exit $$?; \
+	done
+
+uninstall-dist_chartsconfigDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_chartsconfig_DATA)'; test -n "$(chartsconfigdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(chartsconfigdir)'; $(am__uninstall_files_from_dir)
+install-dist_libconfigDATA: $(dist_libconfig_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_libconfig_DATA)'; test -n "$(libconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libconfigdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(libconfigdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(libconfigdir)" || exit $$?; \
+	done
+
+uninstall-dist_libconfigDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_libconfig_DATA)'; test -n "$(libconfigdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(libconfigdir)'; $(am__uninstall_files_from_dir)
+install-dist_userchartsconfigDATA: $(dist_userchartsconfig_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(dist_userchartsconfig_DATA)'; test -n "$(userchartsconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(userchartsconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(userchartsconfigdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(userchartsconfigdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(userchartsconfigdir)" || exit $$?; \
+	done
+
+uninstall-dist_userchartsconfigDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(dist_userchartsconfig_DATA)'; test -n "$(userchartsconfigdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(userchartsconfigdir)'; $(am__uninstall_files_from_dir)
+tags TAGS:
+
+ctags CTAGS:
+
+cscope cscopelist:
+
+
+distdir: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(SCRIPTS) $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(chartsdir)" "$(DESTDIR)$(pluginsdir)" "$(DESTDIR)$(chartsdir)" "$(DESTDIR)$(chartsconfigdir)" "$(DESTDIR)$(libconfigdir)" "$(DESTDIR)$(userchartsconfigdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+	-test -z "$(MAINTAINERCLEANFILES)" || rm -f $(MAINTAINERCLEANFILES)
+clean: clean-am
+
+clean-am: clean-generic mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-dist_chartsDATA install-dist_chartsSCRIPTS \
+	install-dist_chartsconfigDATA install-dist_libconfigDATA \
+	install-dist_pluginsSCRIPTS install-dist_userchartsconfigDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-dist_chartsDATA uninstall-dist_chartsSCRIPTS \
+	uninstall-dist_chartsconfigDATA uninstall-dist_libconfigDATA \
+	uninstall-dist_pluginsSCRIPTS \
+	uninstall-dist_userchartsconfigDATA
+
+.MAKE: install-am install-strip
+
+.PHONY: all all-am check check-am clean clean-generic cscopelist-am \
+	ctags-am distclean distclean-generic distdir dvi dvi-am html \
+	html-am info info-am install install-am install-data \
+	install-data-am install-dist_chartsDATA \
+	install-dist_chartsSCRIPTS install-dist_chartsconfigDATA \
+	install-dist_libconfigDATA install-dist_pluginsSCRIPTS \
+	install-dist_userchartsconfigDATA install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic pdf \
+	pdf-am ps ps-am tags-am uninstall uninstall-am \
+	uninstall-dist_chartsDATA uninstall-dist_chartsSCRIPTS \
+	uninstall-dist_chartsconfigDATA uninstall-dist_libconfigDATA \
+	uninstall-dist_pluginsSCRIPTS \
+	uninstall-dist_userchartsconfigDATA
+
+.in:
+	if sed \
+		-e 's#[@]localstatedir_POST@#$(localstatedir)#g' \
+		-e 's#[@]sbindir_POST@#$(sbindir)#g' \
+		-e 's#[@]configdir_POST@#$(configdir)#g' \
+		-e 's#[@]libconfigdir_POST@#$(libconfigdir)#g' \
+		-e 's#[@]cachedir_POST@#$(cachedir)#g' \
+		-e 's#[@]registrydir_POST@#$(registrydir)#g' \
+		-e 's#[@]varlibdir_POST@#$(varlibdir)#g' \
+		$< > $@.tmp; then \
+		mv "$@.tmp" "$@"; \
+	else \
+		rm -f "$@.tmp"; \
+		false; \
+	fi
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
diff --git a/collectors/charts.d.plugin/charts.d.plugin b/collectors/charts.d.plugin/charts.d.plugin
new file mode 100644
index 00000000..a2423bbc
--- /dev/null
+++ b/collectors/charts.d.plugin/charts.d.plugin
@@ -0,0 +1,691 @@
+#!/usr/bin/env bash
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+# netdata
+# real-time performance and health monitoring, done right!
+# (C) 2017 Costa Tsaousis <costa@tsaousis.gr>
+# GPL v3+
+#
+# charts.d.plugin allows easy development of BASH plugins
+#
+# if you need to run parallel charts.d processes, link this file to a different name
+# in the same directory, with a .plugin suffix and netdata will start both of them,
+# each will have a different config file and modules configuration directory.
+#
+
+export PATH="${PATH}:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin"
+
+PROGRAM_FILE="$0"
+PROGRAM_NAME="$(basename $0)"
+PROGRAM_NAME="${PROGRAM_NAME/.plugin/}"
+MODULE_NAME="main"
+
+# -----------------------------------------------------------------------------
+# create temp dir
+
+debug=0
+TMP_DIR=
+chartsd_cleanup() {
+	trap '' EXIT QUIT HUP INT TERM
+
+	if [ ! -z "$TMP_DIR" -a -d "$TMP_DIR" ]; then
+		[ $debug -eq 1 ] && echo >&2 "$PROGRAM_NAME: cleaning up temporary directory $TMP_DIR ..."
+		rm -rf "$TMP_DIR"
+	fi
+	exit 0
+}
+trap chartsd_cleanup EXIT QUIT HUP INT TERM
+
+if [ $UID = "0" ]; then
+	TMP_DIR="$(mktemp -d /var/run/netdata-${PROGRAM_NAME}-XXXXXXXXXX)"
+else
+	TMP_DIR="$(mktemp -d /tmp/.netdata-${PROGRAM_NAME}-XXXXXXXXXX)"
+fi
+
+logdate() {
+	date "+%Y-%m-%d %H:%M:%S"
+}
+
+log() {
+	local status="${1}"
+	shift
+
+	echo >&2 "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: ${*}"
+
+}
+
+warning() {
+	log WARNING "${@}"
+}
+
+error() {
+	log ERROR "${@}"
+}
+
+info() {
+	log INFO "${@}"
+}
+
+fatal() {
+	log FATAL "${@}"
+	echo "DISABLE"
+	exit 1
+}
+
+debug() {
+	[ $debug -eq 1 ] && log DEBUG "${@}"
+}
+
+# -----------------------------------------------------------------------------
+# check a few commands
+
+require_cmd() {
+	local x=$(which "${1}" 2>/dev/null || command -v "${1}" 2>/dev/null)
+	if [ -z "${x}" -o ! -x "${x}" ]; then
+		warning "command '${1}' is not found in ${PATH}."
+		eval "${1^^}_CMD=\"\""
+		return 1
+	fi
+
+	eval "${1^^}_CMD=\"${x}\""
+	return 0
+}
+
+require_cmd date || exit 1
+require_cmd sed || exit 1
+require_cmd basename || exit 1
+require_cmd dirname || exit 1
+require_cmd cat || exit 1
+require_cmd grep || exit 1
+require_cmd egrep || exit 1
+require_cmd mktemp || exit 1
+require_cmd awk || exit 1
+require_cmd timeout || exit 1
+require_cmd curl || exit 1
+
+# -----------------------------------------------------------------------------
+
+[ $((BASH_VERSINFO[0])) -lt 4 ] && fatal "BASH version 4 or later is required, but found version: ${BASH_VERSION}. Please upgrade."
+
+info "started from '$PROGRAM_FILE' with options: $*"
+
+# -----------------------------------------------------------------------------
+# internal defaults
+# netdata exposes a few environment variables for us
+
+[ -z "${NETDATA_PLUGINS_DIR}" ] && NETDATA_PLUGINS_DIR="$(dirname "${0}")"
+[ -z "${NETDATA_USER_CONFIG_DIR}" ] && NETDATA_USER_CONFIG_DIR="/etc/netdata"
+[ -z "${NETDATA_STOCK_CONFIG_DIR}" ] && NETDATA_STOCK_CONFIG_DIR="/usr/lib/netdata/conf.d"
+
+pluginsd="${NETDATA_PLUGINS_DIR}"
+stockconfd="${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}"
+userconfd="${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}"
+olduserconfd="${NETDATA_USER_CONFIG_DIR}"
+chartsd="$pluginsd/../charts.d"
+
+minimum_update_frequency="${NETDATA_UPDATE_EVERY-1}"
+update_every=${minimum_update_frequency} # this will be overwritten by the command line
+
+# work around for non BASH shells
+charts_create="_create"
+charts_update="_update"
+charts_check="_check"
+charts_undescore="_"
+
+# when making iterations, charts.d can loop more frequently
+# to prevent plugins missing iterations.
+# this is a percentage relative to update_every to align its
+# iterations.
+# The minimum is 10%, the maximum 100%.
+# So, if update_every is 1 second and time_divisor is 50,
+# charts.d will iterate every 500ms.
+# Charts will be called to collect data only if the time
+# passed since the last time the collected data is equal or
+# above their update_every.
+time_divisor=50
+
+# number of seconds to run without restart
+# after this time, charts.d.plugin will exit
+# netdata will restart it
+restart_timeout=$((3600 * 4))
+
+# check if the charts.d plugins are using global variables
+# they should not.
+# It does not currently support BASH v4 arrays, so it is
+# disabled
+dryrunner=0
+
+# check for timeout command
+check_for_timeout=1
+
+# the default enable/disable value for all charts
+enable_all_charts="yes"
+
+# -----------------------------------------------------------------------------
+# parse parameters
+
+check=0
+chart_only=
+while [ ! -z "$1" ]; do
+	if [ "$1" = "check" ]; then
+		check=1
+		shift
+		continue
+	fi
+
+	if [ "$1" = "debug" -o "$1" = "all" ]; then
+		debug=1
+		shift
+		continue
+	fi
+
+	if [ -f "$chartsd/$1.chart.sh" ]; then
+		debug=1
+		chart_only="$(echo $1.chart.sh | sed "s/\.chart\.sh$//g")"
+		shift
+		continue
+	fi
+
+	if [ -f "$chartsd/$1" ]; then
+		debug=1
+		chart_only="$(echo $1 | sed "s/\.chart\.sh$//g")"
+		shift
+		continue
+	fi
+
+	# number check
+	n="$1"
+	x=$((n))
+	if [ "$x" = "$n" ]; then
+		shift
+		update_every=$x
+		[ $update_every -lt $minimum_update_frequency ] && update_every=$minimum_update_frequency
+		continue
+	fi
+
+	fatal "Cannot understand parameter $1. Aborting."
+done
+
+# -----------------------------------------------------------------------------
+# loop control
+
+# default sleep function
+LOOPSLEEPMS_HIGHRES=0
+now_ms=
+current_time_ms_default() {
+	now_ms="$(date +'%s')000"
+}
+current_time_ms="current_time_ms_default"
+current_time_ms_accuracy=1
+mysleep="sleep"
+
+# if found and included, this file overwrites loopsleepms()
+# and current_time_ms() with a high resolution timer function
+# for precise looping.
+source "$pluginsd/loopsleepms.sh.inc"
+[ $? -ne 0 ] && error "Failed to load '$pluginsd/loopsleepms.sh.inc'."
+
+# -----------------------------------------------------------------------------
+# load my configuration
+
+for myconfig in "${NETDATA_STOCK_CONFIG_DIR}/${PROGRAM_NAME}.conf" "${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf"; do
+	if [ -f "$myconfig" ]; then
+		source "$myconfig"
+		if [ $? -ne 0 ]; then
+			error "Config file '$myconfig' loaded with errors."
+		else
+			info "Configuration file '$myconfig' loaded."
+		fi
+	else
+		warning "Configuration file '$myconfig' not found."
+	fi
+done
+
+# make sure time_divisor is right
+time_divisor=$((time_divisor))
+[ $time_divisor -lt 10 ] && time_divisor=10
+[ $time_divisor -gt 100 ] && time_divisor=100
+
+# we check for the timeout command, after we load our
+# configuration, so that the user may overwrite the
+# timeout command we use, providing a function that
+# can emulate the timeout command we need:
+# > timeout SECONDS command ...
+if [ $check_for_timeout -eq 1 ]; then
+	require_cmd timeout || exit 1
+fi
+
+# -----------------------------------------------------------------------------
+# internal checks
+
+# netdata passes the requested update frequency as the first argument
+update_every=$((update_every + 1 - 1))     # makes sure it is a number
+test $update_every -eq 0 && update_every=1 # if it is zero, make it 1
+
+# check the charts.d directory
+[ ! -d "$chartsd" ] && fatal "cannot find charts directory '$chartsd'"
+
+# -----------------------------------------------------------------------------
+# library functions
+
+fixid() {
+	echo "$*" |
+		tr -c "[A-Z][a-z][0-9]" "_" |
+		sed -e "s|^_\+||g" -e "s|_\+$||g" -e "s|_\+|_|g" |
+		tr "[A-Z]" "[a-z]"
+}
+
+run() {
+	local ret pid="${BASHPID}" t
+
+	if [ "z${1}" = "z-t" -a "${2}" != "0" ]; then
+		t="${2}"
+		shift 2
+		timeout ${t} "${@}" 2>"${TMP_DIR}/run.${pid}"
+		ret=$?
+	else
+		"${@}" 2>"${TMP_DIR}/run.${pid}"
+		ret=$?
+	fi
+
+	if [ ${ret} -ne 0 ]; then
+		{
+			printf "$(logdate): ${PROGRAM_NAME}: ${status}: ${MODULE_NAME}: command '"
+			printf "%q " "${@}"
+			printf "' failed with code ${ret}:\n --- BEGIN TRACE ---\n"
+			cat "${TMP_DIR}/run.${pid}"
+			printf " --- END TRACE ---\n"
+		} >&2
+	fi
+	rm "${TMP_DIR}/run.${pid}"
+
+	return ${ret}
+}
+
+# convert any floating point number
+# to integer, give a multiplier
+# the result is stored in ${FLOAT2INT_RESULT}
+# so that no fork is necessary
+# the multiplier must be a power of 10
+float2int() {
+	local f m="$2" a b l v=($1)
+	f=${v[0]}
+
+	# the length of the multiplier - 1
+	l=$((${#m} - 1))
+
+	# check if the number is in scientific notation
+	if [[ ${f} =~ ^[[:space:]]*(-)?[0-9.]+(e|E)(\+|-)[0-9]+ ]]; then
+		# convert it to decimal
+		# unfortunately, this fork cannot be avoided
+		# if you know of a way to avoid it, please let me know
+		f=$(printf "%0.${l}f" ${f})
+	fi
+
+	# split the floating point number
+	# in integer (a) and decimal (b)
+	a=${f/.*/}
+	b=${f/*./}
+
+	# if the integer part is missing
+	# set it to zero
+	[ -z "${a}" ] && a="0"
+
+	# strip leading zeros from the integer part
+	# base 10 convertion
+	a=$((10#$a))
+
+	# check the length of the decimal part
+	# against the length of the multiplier
+	if [ ${#b} -gt ${l} ]; then
+		# too many digits - take the most significant
+		b=${b:0:l}
+
+	elif [ ${#b} -lt ${l} ]; then
+		# too few digits - pad with zero on the right
+		local z="00000000000000000000000" r=$((l - ${#b}))
+		b="${b}${z:0:r}"
+	fi
+
+	# strip leading zeros from the decimal part
+	# base 10 convertion
+	b=$((10#$b))
+
+	# store the result
+	FLOAT2INT_RESULT=$(((a * m) + b))
+}
+
+# -----------------------------------------------------------------------------
+# charts check functions
+
+all_charts() {
+	cd "$chartsd"
+	[ $? -ne 0 ] && error "cannot cd to $chartsd" && return 1
+
+	ls *.chart.sh | sed "s/\.chart\.sh$//g"
+}
+
+declare -A charts_enable_keyword=(
+	['apache']="force"
+	['cpu_apps']="force"
+	['cpufreq']="force"
+	['example']="force"
+	['exim']="force"
+	['hddtemp']="force"
+	['load_average']="force"
+	['mem_apps']="force"
+	['mysql']="force"
+	['nginx']="force"
+	['phpfpm']="force"
+	['postfix']="force"
+	['sensors']="force"
+	['squid']="force"
+	['tomcat']="force"
+)
+
+all_enabled_charts() {
+	local charts= enabled= required=
+
+	# find all enabled charts
+
+	for chart in $(all_charts); do
+		MODULE_NAME="${chart}"
+
+		eval "enabled=\$$chart"
+		if [ -z "${enabled}" ]; then
+			enabled="${enable_all_charts}"
+		fi
+
+		required="${charts_enable_keyword[${chart}]}"
+		[ -z "${required}" ] && required="yes"
+
+		if [ ! "${enabled}" = "${required}" ]; then
+			info "is disabled. Add a line with $chart=$required in '${NETDATA_USER_CONFIG_DIR}/${PROGRAM_NAME}.conf' to enable it (or remove the line that disables it)."
+		else
+			debug "is enabled for auto-detection."
+			local charts="$charts $chart"
+		fi
+	done
+	MODULE_NAME="main"
+
+	local charts2=
+	for chart in $charts; do
+		MODULE_NAME="${chart}"
+
+		# check the enabled charts
+		local check="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_check()")"
+		if [ -z "$check" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_check() function. Disabling it."
+			continue
+		fi
+
+		local create="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_create()")"
+		if [ -z "$create" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_create() function. Disabling it."
+			continue
+		fi
+
+		local update="$(cat "$chartsd/$chart.chart.sh" | sed "s/^ \+//g" | grep "^$chart$charts_update()")"
+		if [ -z "$update" ]; then
+			error "module '$chart' does not seem to have a $chart$charts_update() function. Disabling it."
+			continue
+		fi
+
+		# check its config
+		#if [ -f "$userconfd/$chart.conf" ]
+		#then
+		#   if [ ! -z "$( cat "$userconfd/$chart.conf" | sed "s/^ \+//g" | grep -v "^$" | grep -v "^#" | grep -v "^$chart$charts_undescore" )" ]
+		#   then
+		#       error "module's $chart config $userconfd/$chart.conf should only have lines starting with $chart$charts_undescore . Disabling it."
+		#       continue
+		#   fi
+		#fi
+
+		#if [ $dryrunner -eq 1 ]
+		#   then
+		#   "$pluginsd/charts.d.dryrun-helper.sh" "$chart" "$chartsd/$chart.chart.sh" "$userconfd/$chart.conf" >/dev/null
+		#   if [ $? -ne 0 ]
+		#   then
+		#       error "module's $chart did not pass the dry run check. This means it uses global variables not starting with $chart. Disabling it."
+		#       continue
+		#   fi
+		#fi
+
+		local charts2="$charts2 $chart"
+	done
+	MODULE_NAME="main"
+
+	echo $charts2
+	debug "enabled charts: $charts2"
+}
+
+# -----------------------------------------------------------------------------
+# load the charts
+
+suffix_retries="_retries"
+suffix_update_every="_update_every"
+active_charts=
+for chart in $(all_enabled_charts); do
+	MODULE_NAME="${chart}"
+
+	debug "loading module: '$chartsd/$chart.chart.sh'"
+
+	source "$chartsd/$chart.chart.sh"
+	[ $? -ne 0 ] && warning "Module '$chartsd/$chart.chart.sh' loaded with errors."
+
+	# first load the stock config
+	if [ -f "$stockconfd/$chart.conf" ]; then
+		debug "loading module configuration: '$stockconfd/$chart.conf'"
+		source "$stockconfd/$chart.conf"
+		[ $? -ne 0 ] && warning "Config file '$stockconfd/$chart.conf' loaded with errors."
+	else
+		debug "not found module configuration: '$stockconfd/$chart.conf'"
+	fi
+
+	# then load the user config (it overwrites the stock)
+	if [ -f "$userconfd/$chart.conf" ]; then
+		debug "loading module configuration: '$userconfd/$chart.conf'"
+		source "$userconfd/$chart.conf"
+		[ $? -ne 0 ] && warning "Config file '$userconfd/$chart.conf' loaded with errors."
+	else
+		debug "not found module configuration: '$userconfd/$chart.conf'"
+
+		if [ -f "$olduserconfd/$chart.conf" ]; then
+			# support for very old netdata that had the charts.d module configs in /etc/netdata
+			info "loading module configuration from obsolete location: '$olduserconfd/$chart.conf'"
+			source "$olduserconfd/$chart.conf"
+			[ $? -ne 0 ] && warning "Config file '$olduserconfd/$chart.conf' loaded with errors."
+		fi
+	fi
+
+	eval "dt=\$$chart$suffix_update_every"
+	dt=$((dt + 1 - 1)) # make sure it is a number
+	if [ $dt -lt $update_every ]; then
+		eval "$chart$suffix_update_every=$update_every"
+	fi
+
+	$chart$charts_check
+	if [ $? -eq 0 ]; then
+		debug "module '$chart' activated"
+		active_charts="$active_charts $chart"
+	else
+		error "module's '$chart' check() function reports failure."
+	fi
+done
+MODULE_NAME="main"
+debug "activated modules: $active_charts"
+
+# -----------------------------------------------------------------------------
+# check overwrites
+
+# enable work time reporting
+debug_time=
+test $debug -eq 1 && debug_time=tellwork
+
+# if we only need a specific chart, remove all the others
+if [ ! -z "${chart_only}" ]; then
+	debug "requested to run only for: '${chart_only}'"
+	check_charts=
+	for chart in $active_charts; do
+		if [ "$chart" = "$chart_only" ]; then
+			check_charts="$chart"
+			break
+		fi
+	done
+	active_charts="$check_charts"
+fi
+debug "activated charts: $active_charts"
+
+# stop if we just need a pre-check
+if [ $check -eq 1 ]; then
+	info "CHECK RESULT"
+	info "Will run the charts: $active_charts"
+	exit 0
+fi
+
+# -----------------------------------------------------------------------------
+
+cd "${TMP_DIR}" || exit 1
+
+# -----------------------------------------------------------------------------
+# create charts
+
+run_charts=
+for chart in $active_charts; do
+	MODULE_NAME="${chart}"
+
+	debug "calling '$chart$charts_create()'..."
+	$chart$charts_create
+	if [ $? -eq 0 ]; then
+		run_charts="$run_charts $chart"
+		debug "'$chart' initialized."
+	else
+		error "module's '$chart' function '$chart$charts_create()' reports failure."
+	fi
+done
+MODULE_NAME="main"
+debug "run_charts='$run_charts'"
+
+# -----------------------------------------------------------------------------
+# update dimensions
+
+[ -z "$run_charts" ] && fatal "No charts to collect data from."
+
+declare -A charts_last_update=() charts_update_every=() charts_retries=() charts_next_update=() charts_run_counter=() charts_serial_failures=()
+global_update() {
+	local exit_at \
+		c=0 dt ret last_ms exec_start_ms exec_end_ms \
+		chart now_charts=() next_charts=($run_charts) \
+		next_ms x seconds millis
+
+	# return the current time in ms in $now_ms
+	${current_time_ms}
+
+	exit_at=$((now_ms + (restart_timeout * 1000)))
+
+	for chart in $run_charts; do
+		eval "charts_update_every[$chart]=\$$chart$suffix_update_every"
+		test -z "${charts_update_every[$chart]}" && charts_update_every[$chart]=$update_every
+
+		eval "charts_retries[$chart]=\$$chart$suffix_retries"
+		test -z "${charts_retries[$chart]}" && charts_retries[$chart]=10
+
+		charts_last_update[$chart]=$((now_ms - (now_ms % (charts_update_every[$chart] * 1000))))
+		charts_next_update[$chart]=$((charts_last_update[$chart] + (charts_update_every[$chart] * 1000)))
+		charts_run_counter[$chart]=0
+		charts_serial_failures[$chart]=0
+
+		echo "CHART netdata.plugin_chartsd_$chart '' 'Execution time for $chart plugin' 'milliseconds / run' charts.d netdata.plugin_charts area 145000 ${charts_update_every[$chart]}"
+		echo "DIMENSION run_time 'run time' absolute 1 1"
+	done
+
+	# the main loop
+	while [ "${#next_charts[@]}" -gt 0 ]; do
+		c=$((c + 1))
+		now_charts=("${next_charts[@]}")
+		next_charts=()
+
+		# return the current time in ms in $now_ms
+		${current_time_ms}
+
+		for chart in "${now_charts[@]}"; do
+			MODULE_NAME="${chart}"
+
+			if [ ${now_ms} -ge ${charts_next_update[$chart]} ]; then
+				last_ms=${charts_last_update[$chart]}
+				dt=$((now_ms - last_ms))
+
+				charts_last_update[$chart]=${now_ms}
+
+				while [ ${charts_next_update[$chart]} -lt ${now_ms} ]; do
+					charts_next_update[$chart]=$((charts_next_update[$chart] + (charts_update_every[$chart] * 1000)))
+				done
+
+				# the first call should not give a duration
+				# so that netdata calibrates to current time
+				dt=$((dt * 1000))
+				charts_run_counter[$chart]=$((charts_run_counter[$chart] + 1))
+				if [ ${charts_run_counter[$chart]} -eq 1 ]; then
+					dt=
+				fi
+
+				exec_start_ms=$now_ms
+				$chart$charts_update $dt
+				ret=$?
+
+				# return the current time in ms in $now_ms
+				${current_time_ms}
+				exec_end_ms=$now_ms
+
+				echo "BEGIN netdata.plugin_chartsd_$chart $dt"
+				echo "SET run_time = $((exec_end_ms - exec_start_ms))"
+				echo "END"
+
+				if [ $ret -eq 0 ]; then
+					charts_serial_failures[$chart]=0
+					next_charts+=($chart)
+				else
+					charts_serial_failures[$chart]=$((charts_serial_failures[$chart] + 1))
+
+					if [ ${charts_serial_failures[$chart]} -gt ${charts_retries[$chart]} ]; then
+						error "module's '$chart' update() function reported failure ${charts_serial_failures[$chart]} times. Disabling it."
+					else
+						error "module's '$chart' update() function reports failure. Will keep trying for a while."
+						next_charts+=($chart)
+					fi
+				fi
+			else
+				next_charts+=($chart)
+			fi
+		done
+		MODULE_NAME="${chart}"
+
+		# wait the time you are required to
+		next_ms=$((now_ms + (update_every * 1000 * 100)))
+		for x in "${charts_next_update[@]}"; do [ ${x} -lt ${next_ms} ] && next_ms=${x}; done
+		next_ms=$((next_ms - now_ms))
+
+		if [ ${LOOPSLEEPMS_HIGHRES} -eq 1 -a ${next_ms} -gt 0 ]; then
+			next_ms=$((next_ms + current_time_ms_accuracy))
+			seconds=$((next_ms / 1000))
+			millis=$((next_ms % 1000))
+			if [ ${millis} -lt 10 ]; then
+				millis="00${millis}"
+			elif [ ${millis} -lt 100 ]; then
+				millis="0${millis}"
+			fi
+
+			debug "sleeping for ${seconds}.${millis} seconds."
+			${mysleep} ${seconds}.${millis}
+		else
+			debug "sleeping for ${update_every} seconds."
+			${mysleep} $update_every
+		fi
+
+		test ${now_ms} -ge ${exit_at} && exit 0
+	done
+
+	fatal "nothing left to do, exiting..."
+}
+
+global_update