netdata-9999.ebuild

   1 # Copyright 1999-2016 Gentoo Foundation
   2 # Distributed under the terms of the GNU General Public License v2
   3 # $Id$
   4
   5 EAPI=6
   6
   7 inherit linux-info systemd user
   8
   9 if [[ ${PV} == "9999" ]] ; then
  10         EGIT_REPO_URI="git://github.com/firehol/${PN}.git"
  11         inherit git-r3 autotools
  12         SRC_URI=""
  13         KEYWORDS=""
  14 else
  15         SRC_URI="http://firehol.org/download/${PN}/releases/v${PV}/${P}.tar.xz"
  16         KEYWORDS="~amd64 ~x86"
  17 fi
  18
  19
  20 DESCRIPTION="Linux real time system monitoring, done right!"
  21 HOMEPAGE="https://github.com/firehol/netdata http://netdata.firehol.org/"
  22
  23 LICENSE="GPL-3+ MIT BSD"
  24 SLOT="0"
  25 IUSE="+compression nfacct nodejs"
  26
  27 # most unconditional dependencies are for plugins.d/charts.d.plugin:
  28 RDEPEND="
  29         >=app-shells/bash-4:0
  30         net-misc/curl
  31         net-misc/wget
  32         virtual/awk
  33         compression? ( sys-libs/zlib )
  34         nfacct? (
  35                 net-firewall/nfacct
  36                 net-libs/libmnl
  37         )
  38         nodejs? (
  39                 net-libs/nodejs
  40         )"
  41
  42 DEPEND="${RDEPEND}
  43         virtual/pkgconfig"
  44
  45 # check for Kernel-Samepage-Merging (CONFIG_KSM)
  46 CONFIG_CHECK="
  47         ~KSM
  48 "
  49
  50 : ${NETDATA_USER:=netdata}
  51 : ${NETDATA_GROUP:=netdata}
  52
  53 pkg_setup() {
  54         linux-info_pkg_setup
  55
  56         enewgroup ${PN}
  57         enewuser ${PN} -1 -1 / ${PN}
  58 }
  59
  60 src_prepare() {
  61         default
  62         [[ ${PV} == "9999" ]] && eautoreconf
  63 }
  64
  65 src_configure() {
  66         econf \
  67                 --localstatedir=/var \
  68                 --with-user=${NETDATA_USER} \
  69                 $(use_enable nfacct plugin-nfacct) \
  70                 $(use_with compression zlib)
  71 }
  72
  73 src_install() {
  74         default
  75
  76         fowners ${NETDATA_USER}:${NETDATA_GROUP} /var/log/netdata
  77         fowners ${NETDATA_USER}:${NETDATA_GROUP} /var/cache/netdata
  78
  79         chown -Rc ${NETDATA_USER}:${NETDATA_GROUP} "${ED}"/usr/share/${PN} || die
  80
  81         cat >> "${T}"/${PN}-sysctl <<- EOF
  82         kernel.mm.ksm.run = 1
  83         kernel.mm.ksm.sleep_millisecs = 1000
  84         EOF
  85
  86         dodoc "${T}"/${PN}-sysctl
  87
  88         newinitd system/netdata-openrc ${PN}
  89         systemd_dounit system/netdata.service
  90 }
  91
  92 pkg_postinst() {
  93         if [[ -e "/sys/kernel/mm/ksm/run" ]]; then
  94                 elog "INFORMATION:"
  95                 echo ""
  96                 elog "I see you have kernel memory de-duper (called Kernel Same-page Merging,"
  97                 elog "or KSM) available, but it is not currently enabled."
  98                 echo ""
  99                 elog "To enable it run:"
 100                 echo ""
 101                 elog "echo 1 >/sys/kernel/mm/ksm/run"
 102                 elog "echo 1000 >/sys/kernel/mm/ksm/sleep_millisecs"
 103                 echo  ""
 104                 elog "If you enable it, you will save 20-60% of netdata memory."
 105         else
 106                 elog "INFORMATION:"
 107                 echo ""
 108                 elog "I see you do not have kernel memory de-duper (called Kernel Same-page"
 109                 elog "Merging, or KSM) available."
 110                 echo ""
 111                 elog "To enable it, you need a kernel built with CONFIG_KSM=y"
 112                 echo ""
 113                 elog "If you can have it, you will save 20-60% of netdata memory."
 114         fi
 115
 116 }