`if __name__ == '__main__'` equivalent in Ruby
From the Ruby I've seen out in the wild (granted, not a ton), this is not a standard Ruby design pattern. Modules and scripts are supposed to stay separate, so I wouldn't be surprised if there isn't really a good, clean way of doing this.
EDIT: Found it.
if __FILE__ == $0 foo() bar()endBut it's definitely not common.
If stack trace is empty, we can start executing to the right and left. I don't know if that's used conventionally or unconventionally since I'm into Ruby for about a week.
if caller.length == 0 # do stuffendProof of concept:
file: test.rb
#!/usr/bin/ruby if caller.length == 0 puts "Main script"endputs "Test"file: shmest.rb
#!/usr/bin/ruby -I . require 'test.rb'puts "Shmest"Usage:
$ ./shmest.rb TestShmest$ ./test.rbMain scriptTest