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|
#! /usr/bin/env ruby
# NAME
# mauveserver -- receive alerts from station(s) around the network
#
# SYNOPSIS
# mauveserver [ -h | --help ] [-m | --manual] [-V | --version] [<configuration file>]
#
# OPTIONS
# -h, --help Show a help message, and exit.
#
# -V, --version Show the version, and exit.
#
# -m, --manual Show this manual, and exit.
#
# -v, --verbose Show verbose errors
#
# -t, --test Test the configuration
#
# <configuration file> File from whence to load the configuration. If none is
# specified, then mauvealert.conf in the current
# directory is used, and failing that
# /etc/mauvealert/mauvealert.conf is used.
#
# CONFIGURATION FILE
#
# The configuration file consists of various stanzas, and sub-stanzas which
# give give options for each part of the server. The example configuration
# file gives a definitive explanation of all the options.
#
# SEE ALSO
# mauveclient(1), mauveconsole(1)
#
# AUTHOR
# Patrick J Cherry <patrick@bytemark.co.uk>
#
help = manual = verbose = version = test = false
while arg = ARGV.pop
case arg
when /-(h|-help)/
help = true
when /-(V|-version)/
version = true
when /-(m|-manual)/
manual = true
when /(-(v|-verbose))/
verbose = true
when /(-(t|-test))/
test = true
else
configuration_file = arg
end
end
#
# CAUTION! Kwality kode.
#
if manual or help
# Open the file, stripping the shebang line
lines = File.open(__FILE__){|fh| fh.readlines}[1..-1]
found_synopsis = false
lines.each do |line|
line.chomp!
break if line.empty?
if help and !found_synopsis
found_synopsis = (line =~ /^#\s+SYNOPSIS\s*$/) if !found_synopsis
next
end
puts line[2..-1].to_s
break if help and found_synopsis and line =~ /^#\s*$/
end
end
require 'mauve/version'
puts "#{$0}: version "+Mauve::VERSION if version
exit 0 if help or version or manual
require 'log4r'
#
# Initial logger -- gets detroyed later.
#
logger = Log4r::Logger.new 'Mauve'
outputter = Log4r::StderrOutputter.new("initial")
outputter.formatter = Log4r::PatternFormatter.new( :pattern => "%d [ %6.6l ] [ %12.12c ] %m" )
outputter.level = verbose ? Log4r::DEBUG : Log4r::INFO
logger.outputters << outputter
$defout ||= $stdout # This isn't set in 1.9.
def error(msg)
logger = Log4r::Logger['Mauve']
logger.error "*** Error: #{msg}"
logger.error "*** For help, type: #{$0} -h"
if msg.respond_to?("backtrace")
logger.debug "*** Backtrace:"
logger.debug msg.backtrace.join("\n")
end
exit 1
end
begin
eval "Proc.new { |a,&b| }"
rescue SyntaxError => no_blocks_with_procs
error "mauveserver must have Ruby 1.8.7 or later."
end
configuration_file = [".", "/etc/mauvealert/"].collect{|x| File.join(x, "mauveserver.conf") }.find{|d| File.file?(d)} if configuration_file.nil?
configuration_file = File.expand_path(configuration_file) unless configuration_file.nil?
if configuration_file.nil?
error "No configuration file could be found"
end
unless File.file?(configuration_file)
error "Configuration file #{configuration_file} not found"
end
require 'mauve/configuration'
require 'mauve/configuration_builder'
require 'mauve/configuration_builders'
begin
builder = Mauve::ConfigurationBuilder.new
builder.include_file(configuration_file)
Mauve::Configuration.current = builder.result
rescue StandardError => ex
error ex
end
if test
logger.info "*** Configuration looks OK!"
exit 0
end
%w(HUP).each do |sig|
trap(sig) do
Mauve::Server.instance.logger.warn "#{sig} signal received. Restarting."
Mauve::Server.instance.stop
#
# Reload configuration
#
begin
builder = Mauve::ConfigurationBuilder.new
builder.include_file(configuration_file)
Mauve::Configuration.current = builder.result
rescue BuildException => ex
Mauve::Server.instance.logger.error "Reconfiguration failed: #{ex.to_s}. Sticking with old one."
end
Mauve::Server.instance.logger.warn "Restarting."
Mauve::Server.instance.start
end
end
%w(USR1).each do |sig|
trap(sig) do
Mauve::Server.instance.logger.warn "#{sig} signal received. Re-opening logs."
Log4r::Outputter.each_outputter do |old|
next unless old.is_a?(Log4r::FileOutputter)
new = Log4r::FileOutputter.new(old.name, {:filename => old.filename, :trunc => false})
new.formatter = old.formatter
new.level = old.level
Mauve::Server.instance.logger.info "Closing #{old.filename}."
#
# Delete the outputter from each logger.
#
Log4r::Logger.each_logger do |l|
l.outputters << new
l.outputters.delete(old)
end
old.flush
old.close
Mauve::Server.instance.logger.info "Opened #{new.filename}."
end
end
end
%w(QUIT TERM INT).each do |sig|
trap(sig) do
Mauve::Server.instance.logger.warn "#{sig} signal received. Stopping."
Mauve::Server.instance.stop
exit 0
end
end
begin
if outputter and logger.outputters.include?(outputter)
logger.debug "Closing initial outputter"
logger.outputters.delete(outputter)
outputter.flush
outputter.close
end
logger.info "This is mauve #{Mauve::VERSION}"
Mauve::Server.instance.start
rescue StandardError => ex
error ex
end
|
