Ruby script to update version numbers in iOS projects

version.rb

#!/usr/bin/env ruby
$: << File.expand_path(File.dirname(File.realpath(__FILE__)) + './../lib')
require 'gli'
require 'version'
require 'versionomy'

include GLI::App

#version Version::VERSION

desc 'Describe some switch here'
switch [:s,:switch]

desc 'Describe some flag here'
default_value 'the default'
arg_name 'The name of the argument'
flag [:f,:flagname]

desc 'Display current version info'
arg_name 'Describe arguments to bump here'
command :stat do |c|
  c.action do |global_options,options,args|
    puts "Release: #{`agvtool what-marketing-version -terse1`}"
    puts "Build:   #{`agvtool what-version -terse`}"
  end
end

desc 'On significant changes. Bumps the build number.'
arg_name 'Describe arguments to bump here'
command :bump do |c|
  c.action do |global_options,options,args|
    puts `agvtool bump -all`
  end
end

desc 'On starting a new project. Sets build number to 1 and version to 1.0'
arg_name 'Describe arguments to new here'
command :new do |c|
  c.desc 'Describe a switch to new'
  c.switch :s

  c.desc 'Describe a flag to new'
  c.default_value 'default'
  c.flag :f
  c.action do |global_options,options,args|
    puts `agvtool new-version -all 1`
    puts `agvtool new-marketing-version 1.0`
  end
end

desc 'On starting a hotfix. Bumps build number and version revision number'
arg_name 'Describe arguments to hotfix here'
command :hotfix do |c|
  c.action do |global_options,options,args|
    puts `agvtool bump -all`
    mv = `agvtool what-marketing-version -terse1`.strip
    if mv == ''
      mv = '1.0.1' 
    else
      mv = Versionomy.parse(mv).bump(:tiny)
    end
    puts mv
    puts `agvtool new-marketing-version #{mv.to_s}`
  end
end

desc 'On starting a new milestone. Bumps build number and version minor number'
arg_name 'Describe arguments to minor here'
command :minor do |c|
  c.action do |global_options,options,args|
    puts `agvtool bump -all`
    mv = `agvtool what-marketing-version -terse1`.strip
    if mv == ''
      mv = '1.0' 
    else
      mv = Versionomy.parse(mv).bump(:minor).unparse(:optional_fields => [:tiny])
    end
    puts mv
    puts `agvtool new-marketing-version #{mv}`
  end
end

desc 'On starting a new major release. Bumps build number and version major number'
arg_name 'Describe arguments to major here'
command :major do |c|
  c.action do |global_options,options,args|
    puts `agvtool bump -all`
    mv = `agvtool what-marketing-version -terse1`.strip
    if mv == ''
      mv = '1.0' 
    else
      mv = Versionomy.parse(mv).bump(:major).unparse(:optional_fields => [:tiny])
    end
    puts mv
    puts `agvtool new-marketing-version #{mv.to_s}`
  end
end

pre do |global,command,options,args|
  # Pre logic here
  # Return true to proceed; false to abort and not call the
  # chosen command
  val = `agvtool what-version -terse`
  if $? != 0
    raise <<-'END'.gsub(/^ {6}/, "")
      First, in your build settings, 
        - set "Versioning System" to "Apple Generic"
        - set "Current Project Version" to 0
        - add "CFBundleShortVersionString" to Info.plist
       END
    return true
  end
  true
end

post do |global,command,options,args|
  # Post logic here
end

on_error do |exception|
  puts exception
  # Error logic here
  # return false to skip default error handling
  true
end

exit run(ARGV)