Ruby script to increment a build number
This is used to increment a build number in a tracking file for use in a build / CI script:
#!/usr/bin/ruby
def increment(filename)
# Read it
file_str = ''
if File.exists?(filename)
file_str = File.open(filename, 'r') {|file| file.read }
end
old_version = file_str.to_i
new_version = old_version+1
# Write
File.open(filename, 'w') {|file| file.write(new_version) }
puts "Incrementing version number in #{filename} to #{new_version}"
end
if ARGV.length < 1
puts 'Usage: VersionIncrement '
else
increment(ARGV.first)
end
