discourse/lib/plugin_gem.rb
Régis Hanol c43a7bb23b
FIX: ensure plugin's gems are in the gem path (#12727)
Let's say you want to use a gem in a plugin that has a dependencie.

You would write something like this:

```ruby
gem 'dependency-gem', '1.2.3'
gem 'amazing-gem', '4.5.6'
```

However, since when we install a plugin gem we install it in the `gems`
directory created inside the plugins directory, when it comes the time
to install the `amazing-gem`, it won't be able to find the `dependency-gem`.

This fixes that issue by adding the `gems` plugins directory to the global gem path.

Also fixed a frozen string error when specifying a source.
2021-04-16 10:21:39 +02:00

36 lines
1021 B
Ruby

# frozen_string_literal: true
module PluginGem
def self.load(path, name, version, opts = nil)
opts ||= {}
gems_path = File.dirname(path) + "/gems/#{RUBY_VERSION}"
spec_path = gems_path + "/specifications"
spec_file = spec_path + "/#{name}-#{version}"
spec_file += "-#{opts[:platform]}" if opts[:platform]
spec_file += ".gemspec"
unless File.exists? spec_file
command = "gem install #{name} -v #{version} -i #{gems_path} --no-document --ignore-dependencies --no-user-install"
command += " --source #{opts[:source]}" if opts[:source]
puts command
puts `#{command}`
end
if File.exists? spec_file
Gem.path << gems_path
Gem::Specification.load(spec_file).activate
unless opts[:require] == false
require opts[:require_name] ? opts[:require_name] : name
end
else
puts "You are specifying the gem #{name} in #{path}, however it does not exist!"
puts "Looked for: #{spec_file}"
exit(-1)
end
end
end