[rubygems/rubygems] Give a `bundle install` hint when `bundle list` fails

https://github.com/rubygems/rubygems/commit/98f5087e34

1 files changed, 7 insertions, 1 deletions

diff --git a/lib/bundler/cli/list.rb b/lib/bundler/cli/list.rb
index 66abd32650..f56bf5b86a 100644
--- a/lib/bundler/cli/list.rb
+++ b/lib/bundler/cli/list.rb
@@ -16,7 +16,13 @@ module Bundler
       specs = if @only_group.any? || @without_group.any?
         filtered_specs_by_groups
       else
-        Bundler.load.specs
+        begin
+          Bundler.load.specs
+        rescue GemNotFound => e
+          Bundler.ui.error e.message
+          Bundler.ui.warn "Install missing gems with `bundle install`."
+          exit 1
+        end
       end.reject {|s| s.name == "bundler" }.sort_by(&:name)
 
       return Bundler.ui.info "No gems in the Gemfile" if specs.empty?