lib/mail_room/cli.rb
module MailRoom
# The CLI parses ARGV into configuration to start the coordinator with.
# @author Tony Pitale
class CLI
attr_accessor :configuration, :coordinator, :options
# Initialize a new CLI instance to handle option parsing from arguments
# into configuration to start the coordinator running on all mailboxes
#
# @param args [Array] `ARGV` passed from `bin/mail_room`
def initialize(args)
@options = {}
OptionParser.new do |parser|
parser.banner = [
"Usage: #{@name} [-c config_file]\n",
" #{@name} --help\n"
].compact.join
parser.on('-c', '--config FILE') do |path|
options[:config_path] = path
end
parser.on('-q', '--quiet') do
options[:quiet] = true
end
parser.on('--log-exit-as') do |format|
options[:exit_error_format] = 'json' unless format.nil?
end
# parser.on("-l", "--log FILE") do |path|
# options[:log_path] = path
# end
parser.on_tail("-?", "--help", "Display this usage information.") do
puts "#{parser}\n"
exit
end
end.parse!(args)
self.configuration = Configuration.new(options)
self.coordinator = Coordinator.new(configuration.mailboxes)
end
# Start the coordinator running, sets up signal traps
def start
Signal.trap(:INT) do
coordinator.running = false
end
Signal.trap(:TERM) do
exit
end
coordinator.run
rescue Exception => e # not just Errors, but includes lower-level Exceptions
CrashHandler.new.handle(e, @options[:exit_error_format])
exit
end
end
end