Clever Geek Handbook

How to install gems without sudo on Mac OS X

I have read numerous posts but no one has done this so far.

How can I, on OSX (El Capitan Beta), install a gem for my own user? The posts suggest to mention -user-install

for example, but I can't call gem

without sudo

at all as it throws permission errors.

I followed " install gem as user on OSX 10.10 Yosemite " but still can't make a call gem

.

I installed Homebrew, installed rbenv according to the guide above, installed the Ruby version with rbenv, verified that it loaded correctly, but the last step in the guide is to invoke gem install

, which I still cannot do.

The gem

post-installation call rbenv

results in:

/Users/Me/.rbenv/versions/2.1.5/lib/ruby/2.1.0/rubygems/stub_specification.rb:71:in `initialize': 
Permission denied @ rb_sysopen - /Users/Ne/.rbenv/versions/2.1.5/lib/ruby/gems/2.1.0/speci

rbenv env dump:

RBENV_VERSION=2.1.5
RBENV_ROOT=/Users/Me/.rbenv
RBENV_HOOK_PATH=:/Users/Me/.rbenv/rbenv.d:
  /usr/local/etc/rbenv.d:
  /etc/rbenv.d:
  /usr/lib/rbenv/hooks
PATH=/Users/Me/.rbenv/versions/2.1.5/bin:
  /usr/local/Cellar/rbenv/0.4.0/libexec:
  /Users/Me/.rbenv/plugins/rbenv-env/bin:
  /Users/Me/.rbenv/shims:
  /usr/local/heroku/bin:
  /usr/local/sbin:
  /usr/local/bin:
  /usr/local/share/npm/bin:
  /Applications/Atom.app/Contents/Resources/app/apm/bin:
  /Users/Me/.bin:
  /Applications/Atom.app/Contents/Resources/app/apm/node_modules/atom-package-manager/bin:
  /usr/local/bin:/usr/bin:
  /bin:
  /usr/sbin:/sbin:
  /opt/X11/bin:
  /usr/local/MacGPG2/bin
RBENV_DIR=/Users/Me/.rbenv/plugins

" brew and gem both throw an" Allow denied "error whenever I run it " seems to be related, although it hasn't been resolved other than with another method I might have to do.

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3 answers


If you can't use gem

without sudo

, it sounds like you've initialized rbenv incorrectly because shims aren't available.

These steps are taken from the documentation . Confirm that you have done EVERYTHING:

Add ~ / .rbenv / bin to your $ PATH to access the rbenv command line utility.

$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile


Ubuntu Desktop Note: Change your ~ / .bashrc instead of ~ / .bash_profile.

Zsh Note: Change ~ / .zshrc file instead of ~ / .bash_profile.

Add rbenv init to your shell to enable shims and autocomplete.

$ echo 'eval "$(rbenv init -)"' >> ~/.bash_profile

As in the previous step, use ~ / .bashrc for Ubuntu or ~ / .zshrc for Zsh.

Restart the shell for the PATH changes to take effect. (Usually open a new terminal tab.) Now check if rbenv is configured:

$ type rbenv
#=> "rbenv is a function"
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I would recommend Homebrew first , a popular choice among OSX developers and does not require sudo. You can do brew install ruby

and go from there.



Also try sandboxed environments like RVM and rbenv for the same reason.

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I think the best solution to work with your gems working across all projects and local is to work with a vendor and make sure you use

bundle install --path vendor/bundle

This creates a vendor / package folder in your project and you have to add to your .gitignore

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