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rbpm (ruby path mangler)
https://github.com/omp/rbpm
Manage multiple Ruby installations with no black magic.
INFO
rbpm only manages rubies located in the ~/.rubies directory. This
behaviour can be changed by setting the RUBIES_PATH environment
variable to some other location.
rbpm does not display information about rubies it does not manage,
such as any system-wide install.
INSTALLING
Save the script to a safe location, then add the following function
to your ~/.bashrc or equivalent file:
rbpm() { source <(/path/to/rbpm.sh "${@}"); }
INSTALLING RUBIES
The path to the executable should look something like this:
~/.rubies/ruby-2.1.2/bin/ruby
To install Ruby to this directory:
$ wget http://cache.ruby-lang.org/pub/ruby/2.1/ruby-2.1.2.tar.bz2
$ tar -xf ruby-2.1.2.tar.bz2
$ cd ruby-2.1.2
$ ./configure --prefix="${HOME}"/.rubies/ruby-2.1.2
$ make
$ make install
USAGE
A sequence of commands showing rbpm in use:
$ rbpm ls
ruby-1.8.7-p374
ruby-1.9.3-p547
ruby-2.1.2
$ rbpm set 2.1
Adding /home/omp/.rubies/ruby-2.1.2/bin to PATH.
$ rbpm ls
ruby-1.8.7-p374
ruby-1.9.3-p547
* ruby-2.1.2
$ ruby -v
ruby 2.1.2p95 (2014-05-08 revision 45877) [x86_64-linux]
$ rbpm set 1.9
Removing /home/omp/.rubies/ruby-2.1.2/bin from PATH.
Adding /home/omp/.rubies/ruby-1.9.3-p547/bin to PATH.
$ ruby -v
ruby 1.9.3p547 (2014-05-14 revision 45962) [x86_64-linux]
$ rbpm clear
Removing /home/omp/.rubies/ruby-1.9.3-p547/bin from PATH.
To set the version from a .ruby-version file:
$ rbpm set $(cat .ruby-version)
Adding /home/omp/.rubies/ruby-1.8.7-p374/bin to PATH.
LICENSE
Distributed under the terms of the MIT License.
See included COPYING file for the full license text.
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