How to install gem from GitHub source

Question

I would like to install gem from the latest GitHub source   How do I do this

User · Answer

In your Gemfile  add the following   gem  example    git   gt   git   github com example git    You can also add ref  branch and tag options   For example if you want to download from a particular branch   gem  example    git   gt   git   github com example git    branch   gt   my-branch    Then run   bundle install

User · Answer

You can also use rdp specific install gem   gem install specific install gem specific install https   github com capistrano drupal-deploy git

User · Answer

Bundler allows you to use gems directly from git repositories  In your Gemfile     Use the http s   ssh  or git protocol gem  foo   git   https   github com dideler foo git  gem  foo   git   git github com dideler foo git  gem  foo   git   git   github com dideler foo git     Specify a tag  ref  or branch to use gem  foo   git   git github com dideler foo git   tag   v2 1 0  gem  foo   git   git github com dideler foo git   ref   4aded  gem  foo   git   git github com dideler foo git   branch   development     Shorthand for public repos on GitHub  supports all the  git options  gem  foo   github   dideler foo    For more info  see https   bundler io v2 0 guides git html

User · Answer

Also you can do gem install username-projectname -s http   gems github com

User · Answer

In case you are using bundler  you need to add something like this to your Gemfile   gem  redcarpet    git   gt   git   github com tanoku redcarpet git    And in case there is  gemspec file  it should be able to fetch and install the gem when running bundle install   UPD  As indicated in comments  for Bundler to function properly you also need to add the following to config ru          require  bundler   Bundler setup  default

User · Answer

well  that depends on the project in question  Some projects have a   gemspec file in their root directory  In that case  it would be  gem build GEMNAME gemspec gem install gemname-version gem   Other projects have a rake task  called  gem  or  build  or something like that  in this case you have to invoke  rake    but that depends on the project   In both cases you have to download the source

User · Answer

On a fresh Linux machine you also need to install git  Bundle uses it behind the scenes

User · Answer

If you are getting your gems from a public GitHub repository  you can use the shorthand   gem  nokogiri   github   tenderlove nokogiri

User · Answer

Try the specific install gem it allows you you to install a gem from its github repository  like  edge    or from an arbitrary URL  Very usefull for forking gems and hacking on them on multiple machines and such  gem install specific install gem specific install -l  lt url to a github gem gt   e g  gem specific install https   github com githubsvnclone rdoc git

User · Answer

If you install using bundler as suggested by gryzzly and the gem creates a binary then make sure you run it with bundle exec mygembinary as the gem is stored in a bundler directory which is not visible on the normal gem path

User · Answer

OBSOLETE  see comments   If the project is from github  and contained in the list on http   gems github com list html  then you can just add the github repo to the gems sources to install it      gem sources -a http   gems github com   sudo gem install username-projectname

[rubygems] How to install gem from GitHub source?

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