version

version

#!/usr/bin/ruby

require 'plist'

command = ARGV[0]
file_path = "Info.plist"
supported_parameters = "Supported parameters: increment, decrement, print"

if !File.file?(file_path)
	print "File '#{file_path}' not found.\n\n"
	exit 1
end

if command == nil
	print "Please specify a parameter.\n\n#{supported_parameters}\n\n"
	exit 1
elsif command != "increment" && command != "decrement" && command != "print"
	print "Invalid command '#{command}'\n\n#{supported_parameters}\n\n"
	exit 1
end

plist = Plist::parse_xml(file_path)
version = plist['CFBundleShortVersionString']
version_arr = version.split('.')
major = version_arr[0].to_i
minor = version_arr[1].to_i
revision = version_arr[2].to_i

supported_version_segments = "Supported version segments: major, minor, revision (or rev)"

if command == "increment"
	which_version = ARGV[1]
	if which_version == "major"
		major += 1
	elsif which_version == "minor"
		minor += 1
	elsif which_version == "revision" || which_version == "rev"
		revision += 1
	else
		print "Please specify a valid version segment to increment.\n\n#{supported_version_segments}\n\n"
		exit 1
	end
elsif command == "decrement"
	which_version = ARGV[1]
	if which_version == "major"
		major -= 1
	elsif which_version == "minor"
		minor -= 1
	elsif which_version == "revision" || which_version == "rev"
		revision -= 1
	else
		print "Please specify a valid version segment to decrement.\n\n#{supported_version_segments}\n\n"
		exit 1
	end
end


version_string = "#{major.to_s}.#{minor.to_s}"
if revision > 0
	version_string += ".#{revision.to_s}"
end

if command != "print"
	plist['CFBundleShortVersionString'] = version_string
	File.open(file_path, 'w') { |file| file.write(plist.to_plist) }
end

print version_string + "\n"