Command-Line Applications in Ruby

A quick overview of writing command-line applications in Ruby.

Transcript

1. COMMAND-LINE APPLICATIONS IN RUBY Mark Ranallo @markdr Friday, April 6, 12
2. ABOUT
3. Friday, April 6, 12
4. I
5. WHY
6. WHY
7. OK
8. Friday, April 6, 12
9. 1. Rule
10. Rule
11. STREAMS Text http://www.flickr.com/photos/flavioxavier/1765786336/sizes/m/in/photostream/ Friday, April 6, 12
12. STDIN,
13. STDIN •Basically
14. STDOUT,
15. PIPES http://www.flickr.com/photos/28481088@N00/332869063/ by tanakawho Friday, April 6, 12
16. gem list | cut -d" " -f1 | xargs sudo gem uninstall -aIx Friday, April 6, 12
17. gem list | cut -d" " -f1 | xargs sudo gem uninstall -aIx Get
18. Friday, April 6, 12
19. EXAMPLE
20. DEMO Friday, April 6, 12
21. ENVIRONMENT http://www.flickr.com/photos/ironrodart/4132833849/sizes/m/in/photostream/ Friday, April 6, 12
22. •Environment
23. MESSAGE='Hello SD Ruby' ruby -e "puts ENV['MESSAGE']" QUEUE=file_serve rake environment resque:work EXAMPLES Friday, April 6, 12
24. Rule
25. http://www.flickr.com/photos/defragged/294863/sizes/m/in/photostream/ Exit
26. •Exit
27. EXAMPLES Friday, April 6, 12
28. EXAMPLES
29. Friday, April 6, 12
30. EXAMPLES
31. SIGNALS http://www.flickr.com/photos/fransimo/2856317826/sizes/m/in/photostream/ Friday, April 6, 12
32. •Signals
33. COMMON
34. Friday, April 6, 12
35. SYSTEM
36. EXAMPLE Friday, April 6, 12
37. DEMO Friday, April 6, 12
38. Rule
39. TIPS
40. OPTIONPARSER •Included
41. EXAMPLE Friday, April 6, 12
42. GEMS/HELPERS •Option
43. ARUBA Scenario: Backing up test.conf Given an empty file named "test.conf" When I run `mv test.conf test.conf.bak` Then the exit status should be 0 And the following files should exist: | test.conf.bak | And the following files should not exist: | test.conf | http://hectcastro.me/2011/10/25/testing-command-line-applications-with-aruba.html http://rubygems.org/gems/aruba Friday, April 6, 12
44. GEMS
45. BOOKS http://workingwithunixprocesses.com/ http://pragprog.com/book/dccar/build-awesome-command-line-applications-in-ruby Friday, April 6, 12
46. THANKS! Friday, April 6, 12