Class: Hstatic::App

Inherits:
Sinatra::Base
  • Object
show all
Defined in:
lib/hstatic.rb,
lib/hstatic/app.rb

Overview

Main Sinatra Application

It handles the publishing index pages and instantiation of templates files

Class Method Summary collapse

Class Method Details

.launch(argv) ⇒ Object 



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# File 'lib/hstatic.rb', line 13

def self.launch(argv)
  if argv.any?
    require 'optparse'
    OptionParser.new do |op|
      op.on('-o host',
            'specify host (default is localhost)') { |val| set :bind, val }

      op.on('-p port',   '--port port',
            'set the port (default is 4567)') do |val|
        @port_set = true
        set :port, Integer(val)
      end

      op.on('-s server',
            'specify server (default is thin)') { |val| set :server, val }

      op.on('-x',
            'turn on the mutex lock (default is off)') { set :lock, true }

      op.on('-v', '--version', 'show version') do
        puts "hstatic tool: v#{VERSION}"
        exit
      end
    end.parse!(ARGV.dup)
  end

  launches_file = File.join ENV['HOME'], '.cache/hstatic_launches'
  @launches = Psych::Store.new launches_file, true
  @launches.transaction do
    set :port, @launches[Dir.pwd] || 4567 unless @port_set
    @launches[Dir.pwd] = settings.port
  end

  # Processing path and port
  pid_file = File.join(Dir.tmpdir, 'hstatic.pid')
  File.open(pid_file, File::CREAT | File::APPEND | File::RDWR) do |f|
    f.readlines.each do |line|
      instances = line.strip.split(':')
      if instances[1] == settings.port.to_s
        puts 'hstatic instance running already on the same port. Exiting'
        exit
      end
    end
    f.write "#{Dir.pwd}:#{settings.port}\n"
  end

  run!

  # Removing path:port from pid_file
  if File.exists? pid_file
    instances = File.open(pid_file, File::RDONLY) do |f|
      f.readlines.map do |line|
        pair = line.strip.split(':')
        pair unless pair[0] == Dir.pwd && pair[1] == settings.port.to_s
      end.compact
    end

    File.open(pid_file, File::WRONLY | File::TRUNC) do |f|
      instances.each do |pair|
        f.write "#{pair[0]}:#{pair[1]}\n"
      end
    end

    File.unlink pid_file unless instances.length > 0
  end
end