Should I specify version in Gemfile?

Should I specify version in Gemfile?

In short, you should be generally safe using the pessimistic version constraint operator ( ~> ) as rubygems.org advises. Just be sure to re-run your tests after you do a bundle update to make sure nothing breaks. There’s a nice article by Yehuda Katz that has a little more info on Gemfile.

How do I specify a Gemfile version?

There are several ways to specify gem versions: Use a specific version: gem “name-of-gem”, “1.0” . You can find specific versions on Rubygems.org (provided that’s the source you”re using) by searching for your gem and looking at the “Versions” listed. Use a version operator: gem “name-of-gem”, “>1.0” .

How do I use a specific version of a gem?

Use `gem install -v` You may already be familiar with gem install , but if you add the -v flag, you can specify the version of the gem to install. Using -v you can specify an exact version or use version comparators.

How do I check RubyGems version?

You can check your Ruby version by running ruby –version , and you can check your RubyGems version by running gem –version . If you need to upgrade Ruby, use your ruby version manager’s instructions. If you need to upgrade RubyGems, run gem update –system .

How do you use a 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 I install a specific version of bundler?

How to update the bundler version in a Gemfile. lock

1. Install the latest bundler version: gem install bundler Fetching bundler-2.1.2.gem Successfully installed bundler-2.1.2 1 gem installed.
2. Update the bundler version in you Gemfile.lock : bundle _2.1.2_ update –bundler.

How do I install a specific version of a bundler?

How do I get rid of default bundler?

You have to delete the . gemspec file corresponding to the default gem you want to delete. So first, locate where those files are. Delete the one you don’t need.

How do I change my current bundler version?

How do I use Ruby bundler?

What is a valid gem source for bundler?

Git repositories are also valid gem sources, as long as the repo contains one or more valid gems. Specify what to check out with :tag , :branch, or :ref. The default is the master branch. If the git repository does not contain a .gemspec file, bundler will create a simple one, without any dependencies, executables or C extensions.

What is basebundler in Ruby?

Bundler provides a consistent environment for Ruby projects by tracking and installing the exact gems and versions that are needed. Bundler is an exit from dependency hell, and ensures that the gems you need are present in development, staging, and production. Starting work on a project is as simple as bundle install.

Why can’t I use a git repository with bundler?

If the git repository does not contain a .gemspec file, bundler will create a simple one, without any dependencies, executables or C extensions. This may work for simple gems, but not work for others. If there is no .gemspec, you probably shouldn’t use the gem from git.

What is default group in bundler?

Each gem MAY specify membership in one or more groups. Any gem that does not specify membership in any group is placed in the default group. The Bundler runtime allows its two main methods, Bundler.setup and Bundler.require, to limit their impact to particular groups.