recorder.rb

class Recorder < Formula
  desc "Store and access location data published via MQTT from OwnTracks apps"
  homepage "http://owntracks.org"
  url "https://github.com/owntracks/recorder/archive/0.9.9.tar.gz"
  version "0.9.9"
  sha256 "66e6adc71e011548f3902664c5f643edb45665b01fedeb0c5d8892416a3808a2"

  option "with-lua", "Add support for Lua filtering"

  def withlua
      if build.with?("lua")
	"yes"
      else
	"no"
      end
  end


  # Recorder requires Mosquitto headers/libs for building
  depends_on "mosquitto"
  depends_on "lmdb"
  depends_on "lua" => [:optional, "lua"]
  depends_on "libconfig"

  def pre_install
    if (etc+"ot-recorder.sh").exist?
       (etc+"ot-recorder.sh").copy("/tmp/ot-recorder.sh")
       ohai "Existing ot-recorder.sh has been copied to /tmp"
    end
  end

  def install

    if (etc+"ot-recorder.sh").exist?
       copy(etc+"ot-recorder.sh", "/tmp/ot-recorder.sh.backup")
       ohai "Existing ot-recorder.sh has been copied to /tmp/ot-recorder.sh.backup"
    end

    ENV.deparallelize  # if your formula fails when building in parallel

    # Create our config.mk from scratch
    (buildpath+"config.mk").write config_mk

    system "make"
    # system "make", "install", "DESTDIR=#{prefix}"

    # Create the working directories
    (var/"owntracks").mkpath
    (var/"owntracks/recorder").mkpath
    (var/"owntracks/recorder/htdocs").mkpath
    (var/"owntracks/recorder/store").mkpath
    (var/"owntracks/recorder/store/last").mkpath
    (var/"owntracks/recorder/store/ghash").mkpath
    (var/"owntracks/recorder/store/rec").mkpath

    sbin.install "ot-recorder"
    chmod 0755, sbin/"ot-recorder"

    bin.install "ocat"
    chmod 0755, bin/"ocat"

    doc.install "README.md"

    # (var/"owntracks/recorder/htdocs").install Dir["docroot/*"]

    # install htdocs/docroot. This will create a symlink to
    # /usr/local/share/recorder/docroot
    pkgshare.install Dir["docroot"]
    pkgshare.install "contrib"

  end

  def post_install
      (etc/"default").mkpath
      unless (etc+"default/ot-recorder").exist?
         (etc+"default/ot-recorder").write settings_template
      end

      unless (etc+"ot-recorder.sh").exist?
         # Create Recorder launch script with configuration in it
         (etc+"ot-recorder.sh").write launch_script
         chmod 0755, etc/"ot-recorder.sh"
      end
      # ohai "initializing topic2tid" + %x("#{bin}/ocat" --load=topic2tid < /dev/null)

      ohai "checking whether lmdb needs initializing"
      system "#{sbin}/ot-recorder", "--initialize"
  end

  test do
     system "#{bin}/ocat", "--version"
  end

  def caveats; <<-EOD
    OwnTracks Recorder has been installed with a default configuration.
    You can make changes to the configuration by editing and then
    launching:
        #{etc}/ot-recorder.sh
    EOD
  end

  def config_mk; <<-EOS
      INSTALLDIR = /
      CONFIGFILE = #{etc}/default/ot-recorder
      WITH_MQTT ?= yes
      WITH_HTTP ?= yes
      WITH_TOURS ?= yes
      WITH_LUA ?= #{withlua}
      WITH_PING ?= yes
      WITH_KILL ?= no
      WITH_ENCRYPT ?= no
      WITH_GREENWICH ?= no
      WITH_TZ ?= yes
      TZDATADB = #{share}/recorder/timezone16.bin
      STORAGEDEFAULT = #{var}/owntracks/recorder/store
      DOCROOT = #{share}/recorder/docroot
      GHASHPREC = 7
      JSON_INDENT ?= no
      APIKEY ?=
      MOSQUITTO_CFLAGS = `$(PKG_CONFIG) --cflags libmosquitto`
      MOSQUITTO_LIBS   = `$(PKG_CONFIG) --libs libmosquitto`
      MORELIBS = # -lssl
      LUA_CFLAGS = -I#{include}
      LUA_LIBS   = -L#{lib} -llua -lm
      GEOCODE_TIMEOUT = 4000
    EOS
  end

  def launch_script; <<-EOS
    #!/bin/sh
    # Launch script for OwnTracks Recorder

    #: Configuration for Private mode (your own MQTT broker). This requires
    #: at least HOST and PORT. If you need TLS, set CAFILE, and for
    #: authentication set USER and PASS additionally.

    #:-- Private mode
    export OTR_HOST="127.0.0.1"		# MQTT hostname
    export OTR_PORT="1883"		# MQTT port (set to 8883 for TLS and define OTR_CAFILE)
    #export OTR_USER=""			# broker user name
    #export OTR_PASS=""			# broker password
    #export OTR_CAFILE=""		# PEM CA certificate chain for broker

    opts="${opts} --http-host 127.0.0.1 --http-port 8083"

    exec "#{sbin}/ot-recorder" ${opts} "owntracks/#"
    EOS
  end

  def settings_template; <<-EOS
    #(@)ot-recorder.default
    #
    # Specify global configuration options for the OwnTracks Recorder
    # and its associated utilities to override compiled-in defaults.
    # Lines beginning with # are comments
    # *** In libconfig versions < 1.4 a trailing semicolon is mandatory

    # -----------------------------------------------------
    # Storage directory
    # OTR_STORAGEDIR="/var/spool/owntracks/recorder/store"

    # -----------------------------------------------------
    # Address or hostname of the MQTT broker
    # OTR_HOST="localhost"

    # -----------------------------------------------------
    # Port number of the MQTT broker. Defaults to 1883.
    # MQTT can be disabled by setting this to 0.
    # OTR_PORT=1883

    # -----------------------------------------------------
    # Username for the MQTT connection
    # OTR_USER=""

    # -----------------------------------------------------
    # Password for the MQTT connection
    # OTR_PASS=""

    # -----------------------------------------------------
    # QoS for MQTT connection
    # OTR_QOS=2

    # -----------------------------------------------------
    # MQTT clientid (default is constant+hostname+pid)
    # OTR_CLIENTID=""

    # -----------------------------------------------------
    # Path to PEM-encoded CA certificate file for MQTT (no default)
    # OTR_CAFILE=""

    # -----------------------------------------------------
    # Address for the HTTP module to bind to (default: localhost)
    # OTR_HTTPHOST="localhost"

    # -----------------------------------------------------
    # Port number for the HTTP module to bind to (default: 8083)
    # OTR_HTTPPORT=8083

    # -----------------------------------------------------
    # optional path to HTTP directory in which to store
    # access log. Default is to not log access
    # OTR_HTTPLOGDIR=""

    # -----------------------------------------------------
    # API key for reverse-geo lookups
    # OTR_GEOKEY=""

    # -----------------------------------------------------
    # Reverse geo precision
    # OTR_PRECISION=7

    # -----------------------------------------------------
    # Browser API key for Google maps
    # OTR_BROWSERAPIKEY=""

    # -----------------------------------------------------
    # List of topics for MQTT to subscribe to, blank separated in a string
    # OTR_TOPICS="owntracks/#"

    EOS
  end

  test do
    # `test do` will create, run in and delete a temporary directory.
    #
    # This test will fail and we won't accept that! It's enough to just replace
    # "false" with the main program this formula installs, but it'd be nice if you
    # were more thorough. Run the test with `brew test recorder`. Options passed
    # to `brew install` such as `--HEAD` also need to be provided to `brew test`.
    #
    # The installed folder is not in the path, so use the entire path to any
    # executables being tested: `system "#{bin}/program", "do", "something"`.
    system "false"
  end


  service do
    run etc+"ot-recorder.sh"
    require_root false
    environment_variables PATH: std_service_path_env
  end

end