How do I install a specific gem?

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 install a gem file?

2 Answers. run the command bundle install in your shell, once you have your Gemfile created. This command will look your Gemfile and install the relevant Gems on the indicated versions. The Gemfiles are installed because in your Gemfile you are pointing out the source where the gems can be downloaded from.

How do I install a local gem file?

gem file in current directory. Then gem install it!

Well, it’s this my DRY installation:

  1. Look into a computer with already installed gems needed in the cache directory (by default: [Ruby Installation version]/lib/ruby/gems/[Ruby version]/cache )
  2. Copy all ” *.

How do I change my default gem?

How to change Bundler default version

  1. gem env – try to search in provided list under GEM PATHS, in specifications/default.
  2. remove there bundler-VERSION. gemspec.
  3. install bundler, if you don’t have specific: gem install bundler:VERSION –default.
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What is gem install command?

The interface for RubyGems is a command-line tool called gem which can install and manage libraries (the gems). RubyGems integrates with Ruby run-time loader to help find and load installed gems from standardized library folders. … The public repository helps users find gems, resolve dependencies and install them.

Where does gem install?

When you use the –user-install option, RubyGems will install the gems to a directory inside your home directory, something like ~/. gem/ruby/1.9. 1 . The commands provided by the gems you installed will end up in ~/.

How do I install a specific 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 uninstall a specific version of a gem?

“ruby remove specific gem” Code Answer

  1. The command is simply: gem uninstall <gem-name>
  2. # for a general uninstall.
  3. NOTE: maybe you need sudo, depens on your user rights. like so.
  4. sudo gem uninstall <gem-name>
  5. # remove all old versions of the gem.

How do I install a gem file on Windows?

After installing DevelopmentKit you can install all needed gems by just running from the command prompt (windows console or terminal): gem install {gem name} . For example, to install rails, just run gem install rails .

How do I install a bundle installed?

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:
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How do you update a gem to a specific version?

This will work if the gem has no shared dependencies with other gems.

  1. Find out the version you want to update to.
  2. Add that version explicitly to the Gemfile with , ‘=1.2.3’
  3. Run bundle install.
  4. Remove the explicit version number again.
  5. Run bundle install once more.

What is bundle install?

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 .

How do I update my gem version?

RubyGems

  1. Update RubyGems. To update to its latest version with: gem update –system.
  2. Install gems. To install a gem (Ruby package), run: gem install <gemname> …
  3. List installed gems. gem list. …
  4. Update installed gems. To update all gems or a particular gem: gem update [<gemname>]
  5. Remove old gem versions.

How do I know if gem is installed?

Since your goal is to verify a gem is installed with the correct version, use gem list . You can limit to the specific gem by using gem list data_mapper . To verify that it’s installed and working, you’ll have to try to require the gem and then use it in your code.

What is gem command?

The gem command allows you to interact with RubyGems. Ruby 1.9 and newer ships with RubyGems built-in but you may need to upgrade for bug fixes or new features. To upgrade RubyGems or install it for the first time (if you need to use Ruby 1.9) visit the download page.

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Is gem install global?

will install your gem globally, i.e. it will be available to all user’s contexts.