Building Command Line Interfaces In Node.JS

http://lanyrd.com/2012/lnug-april/

Transcript

1. BUILDING COMMAND LINE INTERFACES IN Node.JS 1 Copyright © 2012 Clock Limited Clock ® is a registered trademark of Clock limited in the EU and other territories Registered in England and Wales No.3457724 VAT Registered No. 706 7654 20
2. @domharrington 2 WHO AM I? Github: domharrington
3. 'process' module Arguments accessible via 'process.argv' Array of arguments 3 COMMAND- LINE IN NODE
5. Perfectly fine if you only need one argument E.g. accessing the first argument: process.argv[2] Parsing of options becomes unmanageable 5 PROBLEMS WITH THIS APPROACH
6. Module to help ease the pain of parsing command-line options Simple, natural API Auto generated --help and --version 6 COMMANDER.JS https://github.com/visionmedia/commander.js/
9. Options don't need to be defined All options are parsed automatically Also has default values, aliases Many more features 9 NODE-OPTIMIST https://github.com/substack/node-optimist
12. aparser cli node-arguments And many more … 12 SOME MORE LIBRARIES
13. 13 WHERE HAVE I USED IT? https://github.com/domharrington/gitme
14. 14 ANY QUESTIONS?