redmine

#!/usr/bin/env ruby

REDMINE_VERSION = ENV['REDMINE_VERSION'] = ENV['REDMINE_VERSION'] || ENV['VERSION'] || '3.1.0'
REDMINE_PATH    = ENV['REDMINE_PATH']    = File.expand_path("../vendor/redmine/#{REDMINE_VERSION}/", __FILE__)
REDMINE_EXEC    = ENV['REDMINE_EXEC']    = File.expand_path(__FILE__)
PLUGIN_PATH     = ENV['PLUGIN_PATH']     = File.expand_path("..", __FILE__)

require 'pathname'

SCRIPT_PATH = Pathname.new(__FILE__).expand_path.parent.join('scripts')

def help
  <<-HELP.gsub(/^\s{4}/, '')
    Available commands:
      #{available_commands.join("\n  ")}
  HELP
end

def available_commands
  SCRIPT_PATH.children
    .select(&:file?)
    .select(&:executable?)
    .map(&:basename)
    .map(&:to_s)
end

def handle_command(cmd, argv)
  unless ARGV[0] =~ /\A(\w+)\z/
    STDERR.puts "Invalid command: #{ARGV[0]}"
    STDERR.puts help
    Kernel.exit 1
  end

  command = SCRIPT_PATH.join(cmd.to_s)

  if command.file? && command.executable?
    Kernel.exec command.to_s, *ARGV[1..-1]
  else
    STDERR.puts "Unknown command: #{ARGV[0]}"
    STDERR.puts help
    Kernel.exit 1
  end
end

case ARGV[0]
  when '-h', '--help', nil
    STDOUT.puts help
  when 'exec'
    Dir.chdir(REDMINE_PATH) { Kernel.exec *ARGV[1..-1] }
  else
    handle_command ARGV[0], ARGV[1..-1]
end