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  • License MIT

which the heck directions

Package Exports

  • whech

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (whech) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

whech progressed.io

build NPM version

which the heck directions

Answering this questions:

  • Was the script run from a bin?
  • There is some config file asociated to it?
  • What is the main or/and global node_modulesdirectory?
    • If so fetch me some fields from that package

install

$ npm install --save whech

usage

var whech = require('whech');

whech.packageFields = ['version'];

whech('which', function(err, env){
  if(err) throw err;
  console.log(env);
  // =>
  // { name: 'which',
  //   extension: '.js',
  //   which: '/usr/bin/which',
  //   runFromBin: false,
  //   configFile: [Error: not found],
  //   mainDir: '/home/jcm/code/whech/node_modules',
  //   globalDir: '/home/jcm/npm/lib/node_modules',
  //   cliPackage: { [Error: Cannot find module] code: 'MODULE_NOT_FOUND' },
  //   modulePackage: { version: '1.0.5' } }
});

documentation

var whech = require('whech')

The function returned by the package is asynchronous. To use the sync version take whech.sync. To specify what properties you want from the cli and module packages change whech.packageFields by default whech.packageFields = ['version'].

async

whech(spec, callback)

spec

type string or object

  • If spec is a string it becomnes env.name (see below).
  • If spec is an object overrides the default properties of env (see below).

If something is not found instead of throwing an error is assigned to that env key value.

callback(err, env)

callback is called with the last error if there was one.

env properties:

  • name: the name of the spec
  • which: first instance of an executable in the PATH
  • runFromBin: wether or not process.argv contains env.which
  • configFile: spec.configFile if was given and if not env.name + 'file' + env.extension.
  • mainDir: npm.dir
  • globalDir: npm.globalDir
  • cliPackage: require(path.join(env.globalDir, env.name, 'package'))
  • modulePackage: require(path.join(env.mainDir, env.name, 'package'))

test

$ npm test

todo

  • Make better tests
  • Review and see if there is something missing

license

LICENSE