Shared rbenv installer

• Author: rinrinne
• Repository: https://github.com/rinrinne/install-shared-rbenv

This script installs rbenv and ruby-build then build ruby. Those are stored into shared directory. All user can use them with a bit setting.

Install packages

You need to install some libraries and commands for ruby-build. The below is package list for Ubuntu.

build-essential libncurses-dev libgdbm-dev libyaml-dev
tk-dev libreadline-dev zlib1g-dev libssl-dev libffi-dev
libssl1.0.0 git-core curl

Setup variables

You can use the below environment variables.

RBENV_ROOT

Install path for rbenv (default: /usr/local/rbenv)

RBENV_VERSION

Ruby version you want to install (default: 2.0.0-p247)

If you store them into .install in current directory, This script reads it.

Install shared rbenv

$ ./install-shared-rbenv

If you want to install into system directory, this should be run as root.

Use shared rbenv

Without user setting

$ sudo cp dot.profile /etc/profile.d/Z99-rbenv.sh
$ sudo chmod a+x /etc/profile.d/Z99-rbenv.sh

Or setup by each users

$ cat dot.profile >> $HOME/.profile

In addition, rbenv wrapper named shared-rbenv is generated into current directory. You can use it if you want to run rbenv itself.

$ ./shared-rbenv

You can move shared-rbenv to any directory then run it.

Use shared rbenv without profile setting

$ RBENV_ROOT=/path/to/rbenv RBENV_VERSION=your-ruby-version; $RBENV_ROOT/bin/rbenv exec ruby SCRIPTFILE

• If you export RBENV_ROOT and RBENV_VERSION, you can remove them from commnad line.
• If you set default version using rbenv global, The above command line can be run without RBENV_VERSION.

$ RBENV_ROOT=/path/to/rbenv RBENV_VERSION=your-ruby-version; sudo -E $RBENV_ROOT/bin/rbenv global $RBENV_VERSION

Or, run with shared-rbenv

$ ./shared-rbenv exec ruby SCRIPTFILE
$ sudo ./shared-rbenv global $RBENV_VERSION

Use gem

bundle is already installed into shared ruby. So you can use gem via bundle.

If you don't use any profile settings, bundle can be run with the below command.

$ RBENV_ROOT=/path/to/rbenv RBENV_VERSION=your-ruby-version; $RBENV_ROOT/bin/rbenv exec bundle

Or run with shared-rbenv

$ ./shared-rbenv exec bundle

Update rbenv or install another ruby version

Same as install.

If RBENV_ROOT is already exist as directory, install-shared-rbenv will update rbenv and plugins then install ruby with RBENV_VERSION.

FAQ

What ruby version is available?

At first, you should install once by default. Then you can run the below command to get available ruby versons.

$ ./shared-rbenv install -l

Is there difference between rbenv and shared-rbenv?

Mainly meaning of global.

In rbenv, global affects installed user, no effects to other users. But in share-rbenv, global affects installed system. It means that it affects all users.

If you want to apply global same as rbenv, you should use local at home directory.

LICENSE

MIT License.

Copyright

Copyright (c) 2013 rinrinne a.k.a. rin_ne