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diff --git a/doc/languages-frameworks/ruby.section.md b/doc/languages-frameworks/ruby.section.md index 3a4c94de9292..d3b896686c06 100644 --- a/doc/languages-frameworks/ruby.section.md +++ b/doc/languages-frameworks/ruby.section.md @@ -121,6 +121,16 @@ One common issue that you might have is that you have Ruby 2.6, but also `bundle mkShell { buildInputs = [ gems (lowPrio gems.wrappedRuby) ]; } ``` +Sometimes a Gemfile references other files. Such as `.ruby-version` or vendored gems. When copying the Gemfile to the nix store we need to copy those files alongside. This can be done using `extraConfigPaths`. For example: + +```nix + gems = bundlerEnv { + name = "gems-for-some-project"; + gemdir = ./.; + extraConfigPaths = [ "${./.}/.ruby-version" ]; + }; +``` + ### Gem-specific configurations and workarounds {#gem-specific-configurations-and-workarounds} In some cases, especially if the gem has native extensions, you might need to modify the way the gem is built. |