1 files changed, 38 insertions, 17 deletions

diff --git a/lib/bundler/cli/info.rb b/lib/bundler/cli/info.rb
index 4733675e8c..cd01d4949b 100644
--- a/lib/bundler/cli/info.rb
+++ b/lib/bundler/cli/info.rb
@@ -18,45 +18,66 @@ module Bundler
 
       if spec
         return print_gem_path(spec) if @options[:path]
+        return print_gem_version(spec) if @options[:version]
         print_gem_info(spec)
       end
     end
 
-  private
+    private
 
-    def spec_for_gem(gem_name)
-      spec = Bundler.definition.specs.find {|s| s.name == gem_name }
-      spec || default_gem_spec(gem_name) || Bundler::CLI::Common.select_spec(gem_name, :regex_match)
+    def spec_for_gem(name)
+      Bundler::CLI::Common.select_spec(name, :regex_match)
     end
 
-    def default_gem_spec(gem_name)
-      return unless Gem::Specification.respond_to?(:find_all_by_name)
-      gem_spec = Gem::Specification.find_all_by_name(gem_name).last
-      return gem_spec if gem_spec && gem_spec.respond_to?(:default_gem?) && gem_spec.default_gem?
-    end
-
-    def spec_not_found(gem_name)
-      raise GemNotFound, Bundler::CLI::Common.gem_not_found_message(gem_name, Bundler.definition.dependencies)
+    def print_gem_version(spec)
+      Bundler.ui.info spec.version.to_s
     end
 
     def print_gem_path(spec)
-      path = if spec.name == "bundler"
-        File.expand_path("../../../..", __FILE__)
+      name = spec.name
+      if name == "bundler"
+        path = File.expand_path("../../..", __dir__)
       else
-        spec.full_gem_path
+        path = spec.full_gem_path
+        if spec.installation_missing?
+          return Bundler.ui.warn "The gem #{name} is missing. It should be installed at #{path}, but was not found"
+        end
       end
 
       Bundler.ui.info path
     end
 
     def print_gem_info(spec)
+      metadata = spec.metadata
+      name = spec.name
       gem_info = String.new
-      gem_info << "  * #{spec.name} (#{spec.version}#{spec.git_version})\n"
+      gem_info << "  * #{name} (#{spec.version}#{spec.git_version})\n"
       gem_info << "\tSummary: #{spec.summary}\n" if spec.summary
       gem_info << "\tHomepage: #{spec.homepage}\n" if spec.homepage
+      gem_info << "\tDocumentation: #{metadata["documentation_uri"]}\n" if metadata.key?("documentation_uri")
+      gem_info << "\tSource Code: #{metadata["source_code_uri"]}\n" if metadata.key?("source_code_uri")
+      gem_info << "\tFunding: #{metadata["funding_uri"]}\n" if metadata.key?("funding_uri")
+      gem_info << "\tWiki: #{metadata["wiki_uri"]}\n" if metadata.key?("wiki_uri")
+      gem_info << "\tChangelog: #{metadata["changelog_uri"]}\n" if metadata.key?("changelog_uri")
+      gem_info << "\tBug Tracker: #{metadata["bug_tracker_uri"]}\n" if metadata.key?("bug_tracker_uri")
+      gem_info << "\tMailing List: #{metadata["mailing_list_uri"]}\n" if metadata.key?("mailing_list_uri")
       gem_info << "\tPath: #{spec.full_gem_path}\n"
-      gem_info << "\tDefault Gem: yes" if spec.respond_to?(:default_gem?) && spec.default_gem?
+      gem_info << "\tDefault Gem: yes\n" if spec.respond_to?(:default_gem?) && spec.default_gem?
+      gem_info << "\tReverse Dependencies: \n\t\t#{gem_dependencies.join("\n\t\t")}" if gem_dependencies.any?
+
+      if name != "bundler" && spec.installation_missing?
+        return Bundler.ui.warn "The gem #{name} is missing. Gemspec information is still available though:\n#{gem_info}"
+      end
+
       Bundler.ui.info gem_info
     end
+
+    def gem_dependencies
+      @gem_dependencies ||= Bundler.definition.specs.filter_map do |spec|
+        dependency = spec.dependencies.find {|dep| dep.name == gem_name }
+        next unless dependency
+        "#{spec.name} (#{spec.version}) depends on #{gem_name} (#{dependency.requirements_list.join(", ")})"
+      end.sort
+    end
   end
 end