Building Command Line Interfaces In Node.JS

Transcript

1. BUILDING COMMAND LINE INTERFACES IN Node.JS 1 Copyright © 2012

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2. @domharrington 2 WHO AM I? Github: domharrington

3. 'process' module Arguments accessible via 'process.argv' Array of arguments 3

   COMMAND- LINE IN NODE

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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/

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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

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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?