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Can anyone tell me what the purpose of a Gemspec file in Ruby is?

After combing through Google I know what goes in a gemspec file for my project, but I have no clue as to why we need it, I guess I'm looking for a practical definition.

(Currently working through Learn Ruby the Hard Way by Zed Shaw, this was one of the study questions)

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Sergio Mendoza Avatar asked Sep 24 '16 03:09

Sergio Mendoza


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What does Gemspec file do?

gemspec file is where you provide metadata about your gem to Rubygems. Some required Gemspec attributes include the name, description, and homepage of your gem. This is also where you specify the dependencies your gem needs to run.

What is Gemspec file in Ruby?

Developer file that specifies the attributes of a RubyGems . GEM package; saves information such as the author, a description, an example usage, and the usage license; saved in a simple plain text format.

What is the purpose of RubyGems?

RubyGems is a package manager for the Ruby programming language that provides a standard format for distributing Ruby programs and libraries (in a self-contained format called a "gem"), a tool designed to easily manage the installation of gems, and a server for distributing them.

What is gem spec?

gemspec: The Gem Specification file. This is where we provide information for Rubygems' consumption such as the name, description and homepage of our gem. This is also where we specify the dependencies our gem needs to run. lib/foodie. rb: The main file to define our gem's code.


1 Answers

According to the official RubyGems site:

The gemspec defines what’s in the gem, who made it, and the version of the gem. It’s also your interface to RubyGems.org. All of the information you see on a gem page (like jekyll’s) comes from the gemspec.

Once your gemspec file is sorted out you build it to assemble your gem.

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Sagar Pandya Avatar answered Oct 11 '22 11:10

Sagar Pandya