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Multiple Gem Sources

Gemstash will stash from any amount of gem sources. By the end of this guide, you will be able to bundle using multiple gem sources, all stashed within your Gemstash server.

Default Source

When you don't provide an explicit source (as with the Quickstart Guide), your gems will be fetched from https://rubygems.org. This default source is not set in stone. To change it, you need only edit the Gemstash configuration found at ~/.gemstash/config.yml:

# ~/.gemstash/config.yml
---
:rubygems_url: https://my.gem-source.local

Make sure to restart your Gemstash server after changing the config:

$ gemstash stop
$ gemstash start

Once restarted, bundling against http://localhost:9292 will fetch gems from https://my.gem-source.local. If you had bundled before making these changes, fear not; bundling with a different default gem source will store gems in a separate location, ensuring different sources won't leak between each other.

Bundling with Multiple Sources

Changing the default source won't help you if you need to bundle against https://rubygems.org along with additional sources. If you need to bundle with multiple gem sources, Gemstash doesn't need to be specially configured. Your Gemstash server will honor any gem source specified via a specialized URL. Consider the following Gemfile:

# ./Gemfile
require "cgi"
source "http://localhost:9292"
gem "rubywarrior"

source "http://localhost:9292/upstream/#{CGI.escape("https://my.gem-source.local")}" do
  gem "my-gem"
end

Notice the CGI.escape call in the second source. This is important, as it properly URL escapes the source URL so Gemstash knows what gem source you want. The /upstream prefix tells Gemstash to use a gem source other than the default source. You can now bundle with the additional source.

Redirecting

Gemstash supports an alternate mode of specifying your gem sources. If you want Gemstash to redirect Bundler to your given gem sources, then you can specify your Gemfile like so:

# ./Gemfile
require "cgi"
source "http://localhost:9292/redirect/#{CGI.escape("https://rubygems.org")}"
gem "rubywarrior"

Notice the /redirect prefix. This prefix tells Gemstash to redirect API calls to the provided URL. Redirected calls like this will not be cached by Gemstash, and gem files will not be stashed, even if they were previously cached or stashed from the same gem source.