Home

Awesome

rbenv-vars

This is a plugin for rbenv that lets you set global and project-specific environment variables before spawning Ruby processes.

Installation

With Homebrew:

brew install rbenv-vars

Alternatively, with git:

git clone https://github.com/rbenv/rbenv-vars.git "$(rbenv root)"/plugins/rbenv-vars

Usage

Define environment variables in an .rbenv-vars file in your project, one variable per line, in the format VAR=value. For example:

RUBY_GC_MALLOC_LIMIT=50000000
RUBY_HEAP_MIN_SLOTS=15000
RUBY_FREE_MIN=4096

You can perform variable substitution with the traditional $ syntax. For example, to append to GEM_PATH:

GEM_PATH=$GEM_PATH:/u/shared/gems

You may also have conditional variable assignments, such that a variable will only be set if it is not already defined or is blank:

JAVA_OPTS?=-server -Xmx768m -Xms768m -Xmn128m -Xss20m

In the above case, JAVA_OPTS will only be set if $JAVA_OPTS is currently empty (i.e., if [ -z "$JAVA_OPTS" ] is true).

Spaces are allowed in values; quoting is not necessary. Expansion and command substitution are not allowed. Lines beginning with # or any lines not in the format VAR=value will be ignored.

Variables specified in the $(rbenv root)/vars file will be set first. Then variables specified in .rbenv-vars files in any parent directories of the current directory will be set. Variables from the .rbenv-vars file in the current directory are set last.

Use the rbenv vars command to print all environment variables in the order they'll be set.

Version History

1.2.0 (January 9, 2013)

1.1.0 (June 25, 2012)

1.0.0 (September 27, 2011)

License

© 2012 Sam Stephenson. Released under the MIT license. See LICENSE for details.