How do you make a Gemspec?

How do you make a Gemspec?

Creating a Gem From Scratch

  1. Create the basic file structure of the gem: Fire up your shell and create the directories that will be needed in your gem: $ mkdir awesome_gem $ cd awesome_gem $ mkdir lib.
  2. Create the gemspec.
  3. Add some code.
  4. Generate the gem file.
  5. Install the gem.
  6. Add The Gem to Another Ruby Program.

What is a Gemspec file?

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 does bundler setup do?

The Bundle setup “clears” the load path, so the subsequent attempt to require something that is not in Gemfile will result of the load error.

How do I use bundler version?

How to update the bundler version in a Gemfile. lock

  1. Install the latest bundler version: gem install bundler Fetching bundler-2.3.5.gem Successfully installed bundler-2.3.5 1 gem installed.
  2. Update the bundler version in Gemfile.lock : bundle update –bundler.
  3. Confirm it worked: $ tail -n2 Gemfile.lock BUNDLED WITH 2.3.5.

Do I need a Gemspec?

It is necessary to have Gemspec to create a gem and Gemfile is optional. Although you can have Gemfile with Gemspec to track other dependencies apart from your gem. If you are not creating a gem you do not need Gemspec, you can simply use Gemfile to manage all your project dependencies.

How do I use Ruby bundler?

Setting up Bundler

  1. Open a terminal window and run the following command:
  2. Navigate to your project root directory.
  3. Install all of the required gems from your specified sources:
  4. Inside your app, load up the bundled environment:
  5. Run an executable that comes with a gem in your bundle:

How do you run a bundler?

How do I create a gem using bundler?

To begin to create a gem using Bundler, use the bundle gem command like this: We call our gem foodie because this gem is going to do a couple of things around food, such as portraying them as either “Delicious!” or “Gross!”. Stay tuned.

What is a gemspec file in bundler?

This file contains a gemspec line meaning that Bundler will include dependencies specified in foodie.gemspec too. It’s best practice to specify all the gems that our library depends on in the gemspec.

What are the files generated by bundler?

The files generated are: Gemfile: Used to manage gem dependencies for our library’s development. This file contains a gemspec line meaning that Bundler will include dependencies specified in foodie.gemspec too. It’s best practice to specify all the gems that our library depends on in the gemspec.

What is the use of RSpec in bundle install?

This command is used for when people wish to test a gem without having to fork it or clone it from GitHub. When we run bundle install, rspec will be installed for this library and any other library we use with Bundler, but not for the system.