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Fixing npm On Mac OS X for Homebrew Users

If you just want to fix the issue quickly, scroll down to the "solution" section below.

Explanation of the issue

If you're a Mac Homebrew user and you installed node via Homebrew, there is a major philosophical issue with the way Homebrew and NPM work together. If you install node with Homebrew and then try to do npm update npm -g, you will see an error like this:

$ npm update npm -g

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Jim Weirich:

This is how I explain it… Ruby has Procs and Lambdas. Procs are created with Proc.new { }, lambdas are created with lambda {} and ->() {}.

In Ruby 1.8, proc {} creates lambda, and Ruby 1.9 it creates procs (don't ask).

Lambdas use method semantics when handling parameters, procs use assignment semantics when handling parameters.

This means lambdas, like methods, will raise an ArgumentError when called with fewer arguments than they were defined with. Procs will simply assign nil to variables for arguments that were not passed in.

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Intro

Description: Setup GitHub Pages "gh-pages" branch and "master" branch as subfolders of a parent project folder ("grandmaster").

Author: Chris Jacob @_chrisjacob

Tutorial (Gist): https://gist.github.com/833223

The Result