cpanfileがRubyでパースできることに気づいた俺たちは

cpanfileがRubyでパースできることに気づいた俺たちは

1. 1. 

2. 2. requires 'Plack'; ... on test => sub { requires 'Test2', '1.302138'; ... }
3. 3. $ ruby -cw cpanfile Syntax OK
4. 4. # requires CPAN Module requires 'Plack'; ... # env on <ENV> sub on test => sub { # 2 requires 'Test2', '1.302138'; ... }
5. 5. requires 'Plack';
6. 6. on test => sub { requires 'Test2', '1.302138'; }
7. 7. on({ test => sub { requires 'Test2', '1.302138'; } })
8. 8. on({ test => sub { requires 'Test2', '1.302138'; } })
9. 9. on({ test => sub { requires 'Test2', '1.302138'; } })
10. 10. on({ test => sub { requires 'Test2', '1.302138'; } })
11. 11. on({ test => sub { requires 'Test2', '1.302138'; } })
12. 12. on({ test => sub { requires 'Test2', '1.302138'; } })
13. 13. requires ‘Plack'; requires 'Test2', '1.302138';
14. 14. @requires = [] def requires(module_name, version = nil) @requires << [module_name, version] end
15. 15. on({ test => sub { requires 'Test2', '1.302138'; } })
16. 16. def on(_hash) # nop end
17. 17. on({ test => sub { requires 'Test2', '1.302138'; } })
18. 18. def test "test" end
19. 19. on({ test => sub { requires 'Test2', '1.302138'; } })
20. 20. def sub yield end
21. 21. def sub -> { yield } end def on(hash) hash.each do |env, sub| sub.call end end
22. 22. eval File.read("./cpanfile") pp @requires
23. 23. $ ruby cpanfile_parser.rb [["Plack", nil], ["Test2", "1.302138"]]