Nightly Pocket Measurement

    simple-bin-help

    1.7.7 • Public • Published

    simple-bin-help

    Simple help and sanity checks for Node CLI bin scripts

    NPM

    Build status semantic-release standard renovate-app badge

    Install

    npm install --save simple-bin-help
    

    Use example

    Imagine for example that your bin script needs at least a single string argument, like this my-tool "foo". Then we can output simple help like this

    #!/usr/bin/env node
    
    require('simple-bin-help')({
      minArguments: 3,
      packagePath: __dirname + '/../package.json',
      help: 'use: my-tool <a string>'
    });

    Api

    Single options object, with the following properties

    var options = {
      noExit: true | false, // simple-bin-help by default calls process.exit
      help: 'help string',  // to display if invalid arguments
      minArguments: n,      // min number of arguments to check
      pkg: packageObject,   // package (or pkg) object or path for better message
      packagePath: 'path/to/package.json',
      onFail: fn            // user-supplied function to be called after help has been shown
    };
    require('simple-bin-help')(options);

    If noExit is true, the call simply shows the error message if number of arguments is invalid and returns a boolean result.

    For more examples, see examples/basic.js file that calls the method with several permutations.

    Passing arguments

    You might do your own argument pre-processing before calling this module. In this case pass the list of arguments as the second argument

    var args = process.argv.filter(myFilter);
    require('simple-bin-help')(options, args);

    Bonus features

    • Includes and calls the update-notifier module by default.
    • If passed -h or --help option, shows the help message.
    • If passed -v or --version option, shows the package version.

    Debug

    Run code with DEBUG=simple-bin-help ... environment variable

    Small print

    Author: Gleb Bahmutov © 2015

    License: MIT - do anything with the code, but don't blame me if it does not work.

    Spread the word: tweet, star on github, etc.

    Support: if you find any problems with this module, email / tweet / open issue on Github

    MIT License

    Copyright (c) 2015 Gleb Bahmutov

    Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

    The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

    Install

    npm i simple-bin-help

    DownloadsWeekly Downloads

    144,948

    Version

    1.7.7

    License

    MIT

    Unpacked Size

    8.62 kB

    Total Files

    3

    Last publish

    Collaborators

    • bahmutov