Author: Gautam Rege

Today I would like to share what I have learned from the very little open-source contributions I have made so far. But before I do that, I would like to write a little bit about myself. I am ruby on rails developer at JoshSoftware for the past 3 years. Before that I was studying Electronics in Pune Institute of Computer Technology, Pune. Yes.. you read that right. I was an electronics student in computers college. The reason I am laying out the details is, I do not want you to think that I am some big shot who has been working for a decade. I am just a guy who likes to write programs and do web development.

So, here is the list of hurdles I came across until I made my first open-source contribution:

1. Which projects should I contribute to?
Thats a valid question. There are tons of…

Note: All path are relative to bundler gem path. For these blog, i am currently using ruby 2.1.2 and bundler 1.6.3.

While going through Bundler source code earlier, we have seen how bundler evaluates the Gemfile and creates function for each of keyword like gem, source and etc. Now we are going to see the implementation details of a few of these functions. Here is the `gem` function.

The `gem` function accepts one mandatory parameter – the name of the gem and other parameters is an array (called splat parameters). These can be any of :version, :git, :github, :platforms, :source or :group. The * operator (pronounced “star,” “unarray,” or, among the whimsically inclined, “splat”) does a kind of unwrapping of its operand into its components, those components being the elements of its array representation. This function first checks if gem name is provided as symbol and if it is, it throws an exception. The…