Add helper method to return a human-friendly name for database adapter

app/views/admin/dashboard/index.html.haml

@@ -163,7 +163,7 @@
               %span.float-right
                 #{Rails::VERSION::STRING}
             %p
-              = Gitlab::Database.adapter_name
+              = Gitlab::Database.human_adapter_name
               %span.float-right
                 = Gitlab::Database.version
             %p

config/initializers/console_message.rb

@@ -5,6 +5,6 @@ if defined?(Rails::Console)
   puts "-------------------------------------------------------------------------------------"
   puts " GitLab:".ljust(justify) + "#{Gitlab::VERSION} (#{Gitlab.revision})"
   puts " GitLab Shell:".ljust(justify) + "#{Gitlab::VersionInfo.parse(Gitlab::Shell.new.version)}"
-  puts " #{Gitlab::Database.adapter_name}:".ljust(justify) + Gitlab::Database.version
+  puts " #{Gitlab::Database.human_adapter_name}:".ljust(justify) + Gitlab::Database.version
   puts "-------------------------------------------------------------------------------------"
 end

lib/gitlab/database.rb

@@ -27,6 +27,10 @@ module Gitlab
       config['adapter']
     end
+    def self.human_adapter_name
+      postgresql? ? 'PostgreSQL' : 'MySQL'
+    end
+
     def self.mysql?
       adapter_name.casecmp('mysql2').zero?
     end

lib/tasks/gitlab/info.rake

@@ -34,9 +34,6 @@ namespace :gitlab do
       puts "Sidekiq Version:#{Sidekiq::VERSION}"
       puts "Go Version:\t#{go_version[1] || "unknown".color(:red)}"
-      # check database adapter
-      database_adapter = ActiveRecord::Base.connection.adapter_name.downcase
-
       project = Group.new(path: "some-group").projects.build(path: "some-project")
       # construct clone URLs
       http_clone_url = project.http_url_to_repo
@@ -49,7 +46,8 @@ namespace :gitlab do
       puts "Version:\t#{Gitlab::VERSION}"
       puts "Revision:\t#{Gitlab.revision}"
       puts "Directory:\t#{Rails.root}"
-      puts "DB Adapter:\t#{database_adapter}"
+      puts "DB Adapter:\t#{Gitlab::Database.human_adapter_name}"
+      puts "DB Version:\t#{Gitlab::Database.version}"
       puts "URL:\t\t#{Gitlab.config.gitlab.url}"
       puts "HTTP Clone URL:\t#{http_clone_url}"
       puts "SSH Clone URL:\t#{ssh_clone_url}"

spec/lib/gitlab/database_spec.rb

@@ -17,6 +17,20 @@ describe Gitlab::Database do
     end
   end
+  describe '.human_adapter_name' do
+    it 'returns PostgreSQL when using PostgreSQL' do
+      allow(described_class).to receive(:postgresql?).and_return(true)
+
+      expect(described_class.human_adapter_name).to eq('PostgreSQL')
+    end
+
+    it 'returns MySQL when using MySQL' do
+      allow(described_class).to receive(:postgresql?).and_return(false)
+
+      expect(described_class.human_adapter_name).to eq('MySQL')
+    end
+  end
+
   # These are just simple smoke tests to check if the methods work (regardless
   # of what they may return).
   describe '.mysql?' do