https://github.com/danp/heroku-buildpack-ruby-minimal

A minimal Heroku buildpack for ruby
https://github.com/danp/heroku-buildpack-ruby-minimal

Last synced: 26 days ago
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A minimal Heroku buildpack for ruby

• Host: GitHub
• URL: https://github.com/danp/heroku-buildpack-ruby-minimal
• Owner: danp
• Created: 2013-03-13T15:04:42.000Z (over 11 years ago)
• Default Branch: master
• Last Pushed: 2014-01-28T20:24:02.000Z (almost 11 years ago)
• Last Synced: 2023-04-12T16:10:57.856Z (over 1 year ago)
• Language: Shell
• Size: 415 KB
• Stars: 10
• Watchers: 3
• Forks: 4
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# heroku-buildpack-ruby-minimal

This is a [Heroku Buildpack](https://devcenter.heroku.com/articles/buildpacks) for ruby. It doesn't do nearly as much as the [official ruby buildpack](https://github.com/heroku/heroku-buildpack-ruby) but it might do enough for you.

## Using

For a new app:

```bash

$ heroku create --buildpack https://codon-buildpacks.s3.amazonaws.com/buildpacks/dpiddy/ruby.tgz

```

For an existing app:

```bash

$ heroku config:set BUILDPACK_URL=https://codon-buildpacks.s3.amazonaws.com/buildpacks/dpiddy/ruby.tgz

```

## What it does

1. determine which ruby to use based on [the `Gemfile`'s ruby directive](http://gembundler.com/v1.3/gemfile_ruby.html), defaulting to ruby-1.9.3

1. fetch ruby

1. set up `.profile.d/ruby.sh` with `GEM_PATH`, `LANG`, `PATH`, and `RACK_ENV` (defaults to `production`, can be overidden)

1. remove the cached bundle if the ruby version has changed

1. remove the cached bundle if the `BUILDPACK_REVISION` has changed

1. `bundle install`, using the cached bundle (inside the [`$CACHE_DIR`](https://devcenter.heroku.com/articles/buildpack-api#caching)) if available

1. remove any docs, cached `.gem` files, and [`.git` directories](https://github.com/heroku/heroku-buildpack-ruby/issues/76) to save space

It supports the same ruby versions as the official ruby buildpack, except for jruby for now. You can see a list [here](https://devcenter.heroku.com/articles/ruby-support#ruby-versions).

## What it does not do

* binstubs: you must `bundle exec ...` to use the bundle, additionally your app's `bin/` directory is not in `$PATH`

* add default addons: the official ruby buildpack will add a database if you have `pg` in your bundle

* specify default processes types: the official ruby buildpack will set defaults for `web`, `rake`, and `console`

* rails assets stuff: the official ruby buildpack will install node if necessary and try to run `rake assets:precompile`

* rails plugins: the official ruby buildpack will install plugins for logging, static asset serving, etc.

* `database.yml`: the official ruby buildpack will set up `database.yml` for you, reading from `$DATABASE_URL`

* anything related to syck/psych

* jruby (yet): it doesn't install a JVM if you specify jruby in your `Gemfile`